(1) 고정되어 있는 것으로 가정한 카메라의 내부 파라미터 값들을 구하고 (2) 실시간으로 들어오는 이미지 프레임마다 카메라의 회전과 이동을 계산하기 위하여 Tsai 알고리즘을 쓰기로 하고, C 또는 C++로 구현된 소스코드 또는 라이브러리를 찾아서 붙여 보기로 한다.
Try #1.
처음에는 CMU의 Reg Willson가 C로 짠 Tsai Camera Calibration 코드 에서 필요한 부분을 include하여 쓰려고 했는데, C++ 문법에 맞지 않는 구식 C 문법으로 코딩된 부분이 많아서 고치는 데 애를 먹었다. (Xcode의 C++ 프로젝트에서 .c 파일을 include하면 compile은 되지만, linking error가 난다. 때문에 .c를 .cpp로 바꾸어야 함.) 그런데 결정적으로, "cal_main.cpp" 파일에 정의된, 캘리브레이션의 최종 결과값을 주는 함수들이 호출하는 optimization을 실행하는 함수 lmdif_()가 Fortan 파일 "lmdif.f"에 정의되어 있고, Fortran을 C로 변환해 주는 "f2c.h"에 의해 이것을 "lmdif.c"로 하여 가지고 있다는 문제가 있었다. lmdif.c를 lmdif.cpp 형태로 만들기 위해서는 Fortran 언어와 Fortran을 C++로 변환하는 방법을 알아야 하므로, 결국 포기했다.
Try #2.
Michigan State University Charles B. Owen의 Display-Relative
Calibration (DRC)을 구현한 DRC 프로그램( DRC.zip )에서 카메라 캘리브레이션에 Tsai의 알고리즘 libtsai.zip을 쓰고 있다. 이 라이브러리는 위의 C 코드를 C++로 수정하면서 "CTsai"라는 클래스를 사용하고 여러 함수들을 수정/보완/결합한 것인데, Visual Studio 용 프로젝트 프로그램을 만들면서 Windows 환경에 기반하여 MFC를 활용하였다. 그래서 이것을 나의 Mac OS X 기반 Xcode 프로젝트에서 그대로 가져다 쓸 수는 없다. 용법은 다음과 같다.
클래스 형태의 템플릿( CLmdif )으로 선언된 "lmdif"의 member function "Lmdif"를 호출할 때,
min/Lmdif.h:48
template<class T> class CLmdif : private CLmdif_
{
int Lmdif(T *p_user, bool (T::*p_func)(int m, int n, const double *parms, double *err),
int m, int n, double *x, double *fvec, double *diag, int *ipvt, double *qtf)
};
후자인 같은 member function, ncc_compute_exact_f_and_Tz_error()를 인자로 넣고 있고 (위 부분 코드들 중 오렌지 색 부분), 컴파일 하면 이 부분을 <unknown type>으로 인식하지 못 하겠다는 에러 메시지를 보낸다. 그리고 다음과 같은 형태를 추천한다고 한다.
function pointer의 형태가 틀린 모양인데, 오렌지색 부분을 그냥 함수가 아닌 어떤 class의 non-static member function을 가리키는 pointer로 &CTsai::ncc_compute_exact_f_and_Tz_error 이렇게 바꾸어 주면, 에러 메시지가 다음과 같이 바뀐다.
error: no matching function for call to 'CLmdif<CTsai>::Lmdif(CTsai* const, bool (*)(int, int, const double*, double*), int&, const int&, double [3], NULL, NULL, NULL, NULL)'
연두색 부분 대신 CTsai::ncc_compute_exact_f_and_Tz_error 이렇게 바꾸어 주면, 에러 메시지가 다음과 같다.
error: no matching function for call to 'CLmdif<CTsai>::Lmdif(CTsai* const, bool (&)(int, int, const double*, double*), int&, const int&, double [3], NULL, NULL, NULL, NULL)'
해결:
편법으로, class CLmdif를 클래스 형 템플릿이 아닌 그냥 클래스로 바꾸어서 선언하고 연두색 부분처럼 호출하면 에러는 안 나기에 일단 이렇게 넘어가기로 한다.
문제점#2.
코드에서 Windows OS 기반 MFC를 사용하고 있어 Mac OS X에서 에러가 난다.
해결:
MFC를 사용하는 "StdAfx.h"는 모두 주석 처리한다.
문제점#3.
Lmdif.h
... 기타 등등의 문제점들을 해결하고, 캘리브레이션을 수행한 결과가 맞는지 확인하자.
source code:
if (
CRimage.size() > 0 ) // if there is a valid point with its cross
ratio
{
correspondPoints(indexI, indexW, p, CRimage,
linesYorder.size(), linesXorder.size(), world, CRworld, dxList.size(),
dyList.size(), iplMatch, scale );
}
cvShowImage( "match", iplMatch );
cvSaveImage( "match.bmp", iplMatch );
아래 사진은 구해진 카메라 내부/외부 파라미터들을 가지고 (1) 실제 패턴의 점에 대응하는 이미지 프레임 (image coordinate) 상의 점을 찾아 (reprojection) 보라색 원으로 그리고, (2) 실제 패턴이 있는 좌표 (world coordinate)를 기준으로 한 graphic coordinate에 직육면체 cube를 노란색 선으로 그린 결과이다.
이미지 프레임과 실제 패턴 상의 점을 1 대 1로 비교하여 연결한 16쌍의 대응점
구한 카메라 파라미터를 가지고 실제 패턴 위의 점들을 이미지 프레임에 reproject한 결과 (보라색 점)와 실제 패턴의 좌표를 기준으로 한 그래픽이 이미지 프레임 상에 어떻게 나타나는지 그린 결과 (노란색 상자)
위 왼쪽 사진에서 보여지는 16쌍의 대응점들의 좌표값을 "이미지 좌표(x,y) : 패턴 좌표 (x,y,z)"로 출력한 결과:
camera parameter
focus = 3724.66
principal axis (x,y) = 168.216, 66.5731
kappa1 (lens distortion) = -6.19473e-07
skew_x = 1
대응점 연결에 오차가 없으면, 즉, 패턴 인식이 잘 되면, Tsai 알고리즘에 의한 카메라 파라미터 구하기가 제대로 되고 있음을 확인할 수 있다. 하지만, 현재 full optimization (모든 파라미터들에 대해 최적화 과정을 수행하는 것)으로 동작하게 되어 있고, 프레임마다 모든 파라미터들을 새로 구하고 있기 때문에, 속도가 매우 느리다. 시험 삼아 reprojection과 간단한 graphic을 그리는 과정은 속도에 큰 영향이 없지만, 그전에 카메라 캘리브레이션을 하는 데 필요한 계산 시간이 길다. 입력 프레임이 들어오는 시간보다 훨씬 많은 시간이 걸려 실시간 구현이 되지 못 하고 있다.
따라서, (1) 내부 파라미터는 첫 프레임에서 한 번만 계산하고 (2) 이후 매 프레임마다 외부 파라미터 (카메라의 회전과 이동)만을 따로 계산하는 것으로 코드를 수정해야 한다.
맥미니에서의 설치를 끝내고 (test log on mac) 테스트해 보면 성능이 좋지 않아 그대로 쓸 수는 없는 상태이다.
0. Video Input
The software requires a video camera with a wide-angle
lens, capable of 640x480x30Hz video capture and an appropriate driver
installation (which is supported by libCVD.)
1. Camera Parameters
CameraCalibrator를 실행시키면 calibrator_settings.cfg 파일을 읽어 온다.
여기에 gvars (PTAM 라이브러리를 지원하는 Gvars3 라이브러리) settings이 설정되어 있...어야 하는데 빈 채로 주어졌다.
CameraCalibrator를 실행시킨 결과로 연산된 카메라 파라미터는 camera.cfg 파일에 저장된다.
실행 후 열어 보면,
1) settings.cfg 파일 로드 GUI.LoadFile("settings.cfg");
2) 사용자 입력 parsing GUI.StartParserThread();
3) 클래스 system (system.h) 실행 s.Run();
atexit
Set function to be executed on exit
The function pointed by the function pointer argument is called when the program terminates normally.
try-if 구문
1) Deitel 823p "catch handler"
2) theuhm@naver:
"에러가 발생한 객체는 예외를 발생시킴과 동시에 try블럭 안의 모든 객체는 스코프를 벗어나 참조할 수 없게 되므로 예외를
처리하는 동안 try블럭 안에서 예외를 발생시켰을 수 있는 객체의 참조를 원천적으로 막아 더 안전하고 깔끔한 예외처리를 할 수
있는 환경을 만들어줍니다. 그리고 예외를 던질 때에 예외 객체의 클래스를 적절히 구성하면, 예외 객체에 예외를 처리하는 방법을
담아서 던질 수도 있습니다. 그렇게 구성하면 굉장히 깔끔한 코드를 얻을 수 있죠.
set
Sets are a kind of associative containers that stores unique elements, and in which the elements themselves are the keys. Sets are typically implemented as binary search trees.
1) PTAM에서 핵심적 기능을 하는 클래스들과 클래스 "System"을 선언 // Defines the System class // This stores the main functional classes of the system class ATANCamera; class Map; class MapMaker; class Tracker; class ARDriver; class MapViewer; class System;
내가 설치할 컴퓨터 사양:
Model Name: Mac mini
Model Identifier: Macmini3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 1 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MM31.0081.B00
그래픽 카드:
NVIDIA GeForce 9400
"Intel Core 2 Duo processors 2.4GHz+ are fine."이라고 했는데, 2.0이면 되지 않을까? 그래픽 카드는 동일한 것이니 문제 없고.
1. library dependency 확인
1. TooN - a header library for linear algebra
2. libCVD - a library for image handling, video capture and computer vision
3. Gvars3 - a run-time configuration/scripting library, this is a sub-project of libCVD.
%% cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/toon co TooN
실행 결과:
cvs checkout: warning: failed to open /Users/lym/.cvspass for reading: No such file or directory
cvs checkout: Updating TooN
U TooN/Authors
U TooN/COPYING
U TooN/Cholesky.h
U TooN/Doxyfile
U TooN/GPL.txt
U TooN/LU.h
U TooN/Lapack_Cholesky.h
U TooN/Makefile.in
U TooN/README
U TooN/SVD.h
U TooN/SymEigen.h
U TooN/TODO
U TooN/TooN.h
U TooN/configure
U TooN/configure.ac
U TooN/determinant.h
U TooN/gauss_jordan.h
U TooN/gaussian_elimination.h
U TooN/generated.h
U TooN/helpers.h
U TooN/irls.h
U TooN/lapack.h
U TooN/make_make_vector.awk
U TooN/make_typeof.awk
U TooN/se2.h
U TooN/se3.h
U TooN/sl.h
U TooN/so2.h
U TooN/so3.h
U TooN/wls.h
cvs checkout: Updating TooN/Documentation
cvs checkout: Updating TooN/benchmark
U TooN/benchmark/generate_solvers.m
U TooN/benchmark/solve_ax_equals_b.cc
U TooN/benchmark/solvers.cc
cvs checkout: Updating TooN/doc
U TooN/doc/COPYING_FDL
U TooN/doc/Makefile
U TooN/doc/documentation.h
U TooN/doc/linoperatorsdoc.h
cvs checkout: Updating TooN/internal
U TooN/internal/allocator.hh
U TooN/internal/builtin_typeof.h
U TooN/internal/comma.hh
U TooN/internal/config.hh
U TooN/internal/config.hh.in
U TooN/internal/dchecktest.hh
U TooN/internal/debug.hh
U TooN/internal/deprecated.hh
U TooN/internal/diagmatrix.h
U TooN/internal/make_vector.hh
U TooN/internal/matrix.hh
U TooN/internal/mbase.hh
U TooN/internal/objects.h
U TooN/internal/operators.hh
U TooN/internal/overfill_error.hh
U TooN/internal/reference.hh
U TooN/internal/size_mismatch.hh
U TooN/internal/slice_error.hh
U TooN/internal/typeof.hh
U TooN/internal/vbase.hh
U TooN/internal/vector.hh
cvs checkout: Updating TooN/optimization
U TooN/optimization/brent.h
U TooN/optimization/conjugate_gradient.h
U TooN/optimization/downhill_simplex.h
U TooN/optimization/golden_section.h
cvs checkout: Updating TooN/test
U TooN/test/SXX_test.cc
U TooN/test/as_foo.cc
U TooN/test/brent_test.cc
U TooN/test/cg_test.cc
U TooN/test/cg_view.gnuplot
U TooN/test/chol.cc
U TooN/test/diagslice.cc
U TooN/test/dynamic_test.cc
U TooN/test/gauss_jordan.cc
U TooN/test/gaussian_elimination_test.cc
U TooN/test/golden_test.cc
U TooN/test/identity_test.cc
U TooN/test/lutest.cc
U TooN/test/make_vector.cc
U TooN/test/makevector.cc
U TooN/test/mat_test.cc
U TooN/test/mat_test2.cc
U TooN/test/mmult_test.cc
U TooN/test/normalize_test.cc
U TooN/test/normalize_test2.cc
U TooN/test/scalars.cc
U TooN/test/simplex_test.cc
U TooN/test/simplex_view.gnuplot
U TooN/test/sl.cc
U TooN/test/svd_test.cc
U TooN/test/sym.cc
U TooN/test/test2.cc
U TooN/test/test3.cc
U TooN/test/test_foreign.cc
U TooN/test/un_project.cc
U TooN/test/vec_test.cc
생성된 TooN 폴더에 들어가서
%%% ./configure
실행 결과:
checking for g++... g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for dgesvd_ in -llapack... yes
checking for decltype... no
checking for __typeof__... yes
checking for __attribute__((deprecated))... yes
You're on the development branch of TooN 2.0. Everything will probably work, but
the interface is a bit different from TooN-1.x
If you want TooN-1, then get it using:
cvs -z3 -d:pserver:anoncvs@cvs.savannah.nongnu.org:/cvsroot/toon co -r Maintenance_Branch_1_x TooN
or update what you currently have using:
cvs up -r Maintenance_Branch_1_x
or head over to:
http://mi.eng.cam.ac.uk/~er258/cvd/
Otherwise, please report any bugs you come across.
%% cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/toon co -D "Mon May 11 16:29:26 BST 2009" TooN
실행 결과:
cvs checkout: warning: failed to open /Users/lym/.cvspass for reading: No such file or directory
? TooN/Makefile
? TooN/config.log
? TooN/config.status
cvs checkout: Updating TooN
U TooN/Cholesky.h
U TooN/Doxyfile
U TooN/LU.h
U TooN/Makefile.in
U TooN/SVD.h
U TooN/SymEigen.h
U TooN/TooN.h
U TooN/configure
U TooN/configure.ac
cvs checkout: `TooN/determinant.h' is no longer in the repository
U TooN/gauss_jordan.h
U TooN/gaussian_elimination.h
U TooN/helpers.h
U TooN/irls.h
U TooN/se2.h
U TooN/se3.h
U TooN/sl.h
U TooN/so2.h
U TooN/so3.h
U TooN/util.h
U TooN/wls.h
cvs checkout: Updating TooN/Documentation
cvs checkout: Updating TooN/benchmark
U TooN/benchmark/generate_solvers.m
cvs checkout: Updating TooN/doc
U TooN/doc/documentation.h
U TooN/doc/matrixdoc.h
cvs checkout: Updating TooN/internal
U TooN/internal/allocator.hh
cvs checkout: `TooN/internal/comma.hh' is no longer in the repository
RCS file: /sources/toon/TooN/internal/config.hh,v
retrieving revision 1.12
retrieving revision 1.8
Merging differences between 1.12 and 1.8 into config.hh
TooN/internal/config.hh already contains the differences between 1.12 and 1.8
U TooN/internal/config.hh.in
cvs checkout: `TooN/internal/dchecktest.hh' is no longer in the repository
U TooN/internal/debug.hh
cvs checkout: `TooN/internal/deprecated.hh' is no longer in the repository
U TooN/internal/diagmatrix.h
U TooN/internal/matrix.hh
U TooN/internal/mbase.hh
U TooN/internal/objects.h
U TooN/internal/operators.hh
cvs checkout: `TooN/internal/overfill_error.hh' is no longer in the repository
U TooN/internal/reference.hh
U TooN/internal/slice_error.hh
U TooN/internal/vector.hh
cvs checkout: Updating TooN/optimization
U TooN/optimization/conjugate_gradient.h
U TooN/optimization/downhill_simplex.h
U TooN/optimization/golden_section.h
cvs checkout: Updating TooN/test
U TooN/test/identity_test.cc
cvs checkout: `TooN/test/simplex_test.cc' is no longer in the repository
cvs checkout: `TooN/test/simplex_view.gnuplot' is no longer in the repository
U TooN/test/vec_test.cc
%% cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/libcvd co -D "Mon May 11 16:29:26 BST 2009" libcvd
실행 결과:
cvs checkout: warning: failed to open /Users/lym/.cvspass for reading: No such file or directory
cvs checkout: Updating libcvd
U libcvd/Authors
U libcvd/Doxyfile
U libcvd/LICENSE
U libcvd/Makefile.in
U libcvd/TODO
U libcvd/config.guess
U libcvd/config.sub
U libcvd/configure
U libcvd/configure.in
U libcvd/generate_dependencies.bash
U libcvd/install-sh
U libcvd/subimage_test.cc
cvs checkout: Updating libcvd/build
cvs checkout: Updating libcvd/build/vc2005
U libcvd/build/vc2005/config.h
U libcvd/build/vc2005/libcvd.sln
U libcvd/build/vc2005/libcvd.vcproj
cvs checkout: Updating libcvd/build/vc2008
U libcvd/build/vc2008/libcvd.sln
U libcvd/build/vc2008/libcvd.vcproj
cvs checkout: Updating libcvd/cvd
U libcvd/cvd/abs.h
U libcvd/cvd/bresenham.h
U libcvd/cvd/brezenham.h
U libcvd/cvd/byte.h
U libcvd/cvd/camera.h
U libcvd/cvd/colourspace.h
U libcvd/cvd/colourspace_convert.h
U libcvd/cvd/colourspace_frame.h
U libcvd/cvd/colourspacebuffer.h
U libcvd/cvd/colourspaces.h
U libcvd/cvd/connected_components.h
U libcvd/cvd/convolution.h
U libcvd/cvd/cpu_hacks.h
U libcvd/cvd/cvd_image.h
U libcvd/cvd/cvd_timer.h
U libcvd/cvd/deinterlacebuffer.h
U libcvd/cvd/deinterlaceframe.h
U libcvd/cvd/diskbuffer2.h
U libcvd/cvd/diskbuffer2_frame.h
U libcvd/cvd/documentation.h
U libcvd/cvd/draw.h
U libcvd/cvd/eventobject.h
U libcvd/cvd/exceptions.h
U libcvd/cvd/fast_corner.h
U libcvd/cvd/gl_helpers.h
U libcvd/cvd/glwindow.h
U libcvd/cvd/haar.h
U libcvd/cvd/harris_corner.h
U libcvd/cvd/helpers.h
U libcvd/cvd/image.h
U libcvd/cvd/image_convert.h
U libcvd/cvd/image_convert_fwd.h
U libcvd/cvd/image_interpolate.h
U libcvd/cvd/image_io.h
U libcvd/cvd/image_ref.h
U libcvd/cvd/integral_image.h
U libcvd/cvd/interpolate.h
U libcvd/cvd/irls.h
U libcvd/cvd/la.h
U libcvd/cvd/localvideobuffer.h
U libcvd/cvd/localvideoframe.h
U libcvd/cvd/message_queue.h
U libcvd/cvd/nonmax_suppression.h
U libcvd/cvd/random.h
U libcvd/cvd/readaheadvideobuffer.h
U libcvd/cvd/rgb.h
U libcvd/cvd/rgb8.h
U libcvd/cvd/rgba.h
U libcvd/cvd/ringbuffer.h
U libcvd/cvd/runnable.h
U libcvd/cvd/runnable_batch.h
U libcvd/cvd/se2.h
U libcvd/cvd/se3.h
U libcvd/cvd/serverpushjpegbuffer.h
U libcvd/cvd/serverpushjpegframe.h
U libcvd/cvd/so2.h
U libcvd/cvd/so3.h
U libcvd/cvd/synchronized.h
U libcvd/cvd/tensor_voting.h
U libcvd/cvd/thread.h
U libcvd/cvd/timeddiskbuffer.h
U libcvd/cvd/timer.h
U libcvd/cvd/utility.h
U libcvd/cvd/vector_image_ref.h
U libcvd/cvd/videobuffer.h
U libcvd/cvd/videobufferflags.h
U libcvd/cvd/videodisplay.h
U libcvd/cvd/videofilebuffer.h
U libcvd/cvd/videofilebuffer_frame.h
U libcvd/cvd/videoframe.h
U libcvd/cvd/videosource.h
U libcvd/cvd/vision.h
U libcvd/cvd/wls.h
U libcvd/cvd/wls_c.h
U libcvd/cvd/wls_cholesky.h
U libcvd/cvd/yc.h
cvs checkout: Updating libcvd/cvd/IRIX
U libcvd/cvd/IRIX/O2buffer.h
U libcvd/cvd/IRIX/O2videoframe.h
U libcvd/cvd/IRIX/sgi-video.h
cvs checkout: Updating libcvd/cvd/Linux
U libcvd/cvd/Linux/capture_logic.cxx
U libcvd/cvd/Linux/dvbuffer.h
U libcvd/cvd/Linux/dvbuffer3.h
U libcvd/cvd/Linux/dvframe.h
U libcvd/cvd/Linux/v4l1buffer.h
U libcvd/cvd/Linux/v4l1frame.h
U libcvd/cvd/Linux/v4l2buffer.h
U libcvd/cvd/Linux/v4l2frame.h
U libcvd/cvd/Linux/v4lbuffer.h
U libcvd/cvd/Linux/v4lcontrol.h
cvs checkout: Updating libcvd/cvd/OSX
U libcvd/cvd/OSX/qtbuffer.h
U libcvd/cvd/OSX/qtframe.h
cvs checkout: Updating libcvd/cvd/internal
U libcvd/cvd/internal/aligned_mem.h
U libcvd/cvd/internal/assembly.h
U libcvd/cvd/internal/builtin_components.h
U libcvd/cvd/internal/convert_pixel_types.h
U libcvd/cvd/internal/disk_image.h
U libcvd/cvd/internal/gl_types.h
U libcvd/cvd/internal/image_ref_implementation.hh
U libcvd/cvd/internal/is_pod.h
U libcvd/cvd/internal/load_and_save.h
U libcvd/cvd/internal/name_CVD_rgb_types.h
U libcvd/cvd/internal/name_builtin_types.h
U libcvd/cvd/internal/pixel_operations.h
U libcvd/cvd/internal/pixel_traits.h
U libcvd/cvd/internal/rgb_components.h
U libcvd/cvd/internal/scalar_convert.h
U libcvd/cvd/internal/simple_vector.h
cvs checkout: Updating libcvd/cvd/internal/io
U libcvd/cvd/internal/io/bmp.h
U libcvd/cvd/internal/io/fits.h
U libcvd/cvd/internal/io/jpeg.h
U libcvd/cvd/internal/io/png.h
U libcvd/cvd/internal/io/pnm_grok.h
U libcvd/cvd/internal/io/save_postscript.h
U libcvd/cvd/internal/io/text.h
U libcvd/cvd/internal/io/tiff.h
cvs checkout: Updating libcvd/cvd/internal/pnm
cvs checkout: Updating libcvd/cvd/lock
cvs checkout: Updating libcvd/cvd/python
U libcvd/cvd/python/interface.h
U libcvd/cvd/python/selector.h
U libcvd/cvd/python/types.h
cvs checkout: Updating libcvd/cvd_src
U libcvd/cvd_src/bayer.cxx
U libcvd/cvd_src/brezenham.cc
U libcvd/cvd_src/colourspace_convert.cxx
U libcvd/cvd_src/connected_components.cc
U libcvd/cvd_src/convolution.cc
U libcvd/cvd_src/corner_10.h
U libcvd/cvd_src/corner_12.h
U libcvd/cvd_src/corner_9.h
U libcvd/cvd_src/cvd_timer.cc
U libcvd/cvd_src/deinterlacebuffer.cc
U libcvd/cvd_src/diskbuffer2.cc
U libcvd/cvd_src/draw.cc
U libcvd/cvd_src/draw_toon.cc
U libcvd/cvd_src/eventobject.cpp
U libcvd/cvd_src/exceptions.cc
U libcvd/cvd_src/fast_corner.cxx
U libcvd/cvd_src/fast_corner_9_nonmax.cxx
U libcvd/cvd_src/faster_corner_10.cxx
U libcvd/cvd_src/faster_corner_12.cxx
U libcvd/cvd_src/faster_corner_9.cxx
U libcvd/cvd_src/faster_corner_utilities.h
U libcvd/cvd_src/globlist.cxx
U libcvd/cvd_src/gltext.cpp
U libcvd/cvd_src/glwindow.cc
U libcvd/cvd_src/half_sample.cc
U libcvd/cvd_src/image_io.cc
U libcvd/cvd_src/mono.h
U libcvd/cvd_src/nonmax_suppression.cxx
U libcvd/cvd_src/sans.h
U libcvd/cvd_src/serif.h
U libcvd/cvd_src/slower_corner_10.cxx
U libcvd/cvd_src/slower_corner_11.cxx
U libcvd/cvd_src/slower_corner_12.cxx
U libcvd/cvd_src/slower_corner_7.cxx
U libcvd/cvd_src/slower_corner_8.cxx
U libcvd/cvd_src/slower_corner_9.cxx
U libcvd/cvd_src/synchronized.cpp
U libcvd/cvd_src/tensor_voting.cc
U libcvd/cvd_src/thread.cpp
U libcvd/cvd_src/timeddiskbuffer.cc
U libcvd/cvd_src/utility_helpers.h
U libcvd/cvd_src/videodisplay.cc
U libcvd/cvd_src/videofilebuffer.cc
U libcvd/cvd_src/videosource.cpp
U libcvd/cvd_src/yuv411_to_stuff.cxx
U libcvd/cvd_src/yuv420.cpp
U libcvd/cvd_src/yuv422.cpp
U libcvd/cvd_src/yuv422.h
cvs checkout: Updating libcvd/cvd_src/IRIX
U libcvd/cvd_src/IRIX/O2buffer.cxx
U libcvd/cvd_src/IRIX/sgi-video.cxx
cvs checkout: Updating libcvd/cvd_src/Linux
U libcvd/cvd_src/Linux/dvbuffer.cc
U libcvd/cvd_src/Linux/dvbuffer3_dc1394v1.cc
U libcvd/cvd_src/Linux/dvbuffer3_dc1394v2.cc
U libcvd/cvd_src/Linux/kernel-video1394.h
U libcvd/cvd_src/Linux/v4l1buffer.cc
U libcvd/cvd_src/Linux/v4l2buffer.cc
U libcvd/cvd_src/Linux/v4lbuffer.cc
U libcvd/cvd_src/Linux/v4lcontrol.cc
cvs checkout: Updating libcvd/cvd_src/OSX
U libcvd/cvd_src/OSX/qtbuffer.cpp
cvs checkout: Updating libcvd/cvd_src/SSE2
cvs checkout: Updating libcvd/cvd_src/Win32
U libcvd/cvd_src/Win32/glwindow.cpp
U libcvd/cvd_src/Win32/win32.cpp
U libcvd/cvd_src/Win32/win32.h
cvs checkout: Updating libcvd/cvd_src/fast
U libcvd/cvd_src/fast/fast_10_detect.cxx
U libcvd/cvd_src/fast/fast_10_score.cxx
U libcvd/cvd_src/fast/fast_11_detect.cxx
U libcvd/cvd_src/fast/fast_11_score.cxx
U libcvd/cvd_src/fast/fast_12_detect.cxx
U libcvd/cvd_src/fast/fast_12_score.cxx
U libcvd/cvd_src/fast/fast_7_detect.cxx
U libcvd/cvd_src/fast/fast_7_score.cxx
U libcvd/cvd_src/fast/fast_8_detect.cxx
U libcvd/cvd_src/fast/fast_8_score.cxx
U libcvd/cvd_src/fast/fast_9_detect.cxx
U libcvd/cvd_src/fast/fast_9_score.cxx
U libcvd/cvd_src/fast/prototypes.h
cvs checkout: Updating libcvd/cvd_src/i686
U libcvd/cvd_src/i686/byte_to_double_gradient.s
U libcvd/cvd_src/i686/byte_to_float_gradient.s
U libcvd/cvd_src/i686/byte_to_short_difference.s
U libcvd/cvd_src/i686/convert_rgb_to_y.cc
U libcvd/cvd_src/i686/convolve_float.s
U libcvd/cvd_src/i686/convolve_float4.s
U libcvd/cvd_src/i686/convolve_gaussian.cc
U libcvd/cvd_src/i686/float_add_mul_add.s
U libcvd/cvd_src/i686/float_add_mul_add_unaligned.s
U libcvd/cvd_src/i686/float_assign_mul.s
U libcvd/cvd_src/i686/float_difference.s
U libcvd/cvd_src/i686/float_innerproduct.s
U libcvd/cvd_src/i686/gradient.cc
U libcvd/cvd_src/i686/halfsample.s
U libcvd/cvd_src/i686/int_difference.s
U libcvd/cvd_src/i686/median_3x3.cc
U libcvd/cvd_src/i686/rgb_to_gray.s
U libcvd/cvd_src/i686/short_difference.s
U libcvd/cvd_src/i686/testconf
U libcvd/cvd_src/i686/utility_byte_differences.cc
U libcvd/cvd_src/i686/utility_double_int.cc
U libcvd/cvd_src/i686/utility_float.cc
U libcvd/cvd_src/i686/yuv411_to_stuff_MMX.C
U libcvd/cvd_src/i686/yuv411_to_stuff_MMX_64.C
U libcvd/cvd_src/i686/yuv420p_to_rgb.s
U libcvd/cvd_src/i686/yuv422_to_grey.s
U libcvd/cvd_src/i686/yuv422_to_rgb.s
U libcvd/cvd_src/i686/yuv422_wrapper.cc
cvs checkout: Updating libcvd/cvd_src/noarch
U libcvd/cvd_src/noarch/convert_rgb_to_y.cc
U libcvd/cvd_src/noarch/convolve_gaussian.cc
U libcvd/cvd_src/noarch/default_memalign.cpp
U libcvd/cvd_src/noarch/gradient.cc
U libcvd/cvd_src/noarch/median_3x3.cc
U libcvd/cvd_src/noarch/posix_memalign.cpp
U libcvd/cvd_src/noarch/utility_byte_differences.cc
U libcvd/cvd_src/noarch/utility_double_int.cc
U libcvd/cvd_src/noarch/utility_float.cc
U libcvd/cvd_src/noarch/yuv422_wrapper.cc
cvs checkout: Updating libcvd/cvd_src/nothread
U libcvd/cvd_src/nothread/runnable_batch.cc
cvs checkout: Updating libcvd/cvd_src/posix
cvs checkout: Updating libcvd/cvd_src/thread
U libcvd/cvd_src/thread/runnable_batch.cc
cvs checkout: Updating libcvd/doc
U libcvd/doc/cameracalib2cm.pdf
U libcvd/doc/tutorial.h
cvs checkout: Updating libcvd/make
U libcvd/make/compile_deps.awk
U libcvd/make/log_to_changelog.awk
U libcvd/make/march_flags
cvs checkout: Updating libcvd/pnm_src
U libcvd/pnm_src/bmp.cxx
U libcvd/pnm_src/fits.cc
U libcvd/pnm_src/jpeg.cxx
U libcvd/pnm_src/png.cc
U libcvd/pnm_src/pnm_grok.cxx
U libcvd/pnm_src/save_postscript.cxx
U libcvd/pnm_src/text.cxx
U libcvd/pnm_src/text_write.cc
U libcvd/pnm_src/tiff.cxx
U libcvd/pnm_src/tiffwrite.cc
cvs checkout: Updating libcvd/progs
U libcvd/progs/calibrate.cxx
U libcvd/progs/cvd_display_image.cxx
U libcvd/progs/cvd_image_viewer.cxx
U libcvd/progs/img_play.cxx
U libcvd/progs/img_play_bw.cxx
U libcvd/progs/img_play_deinterlace.cxx
U libcvd/progs/img_play_generic.cxx
U libcvd/progs/se3_exp.cxx
U libcvd/progs/se3_inv.cxx
U libcvd/progs/se3_ln.cxx
U libcvd/progs/se3_post_mul.cxx
U libcvd/progs/se3_pre_mul.cxx
U libcvd/progs/video_play.cc
U libcvd/progs/video_play_bw.cc
U libcvd/progs/video_play_source.cc
cvs checkout: Updating libcvd/python
U libcvd/python/setup.py
cvs checkout: Updating libcvd/python/CVD
U libcvd/python/CVD/cvd.cpp
cvs checkout: Updating libcvd/test
U libcvd/test/diskbuffer2.cxx
U libcvd/test/dvbuffer3_bayerrgb.cxx
U libcvd/test/dvbuffer3_mono.cxx
U libcvd/test/dvbuffer_controls.cxx
U libcvd/test/dvbuffer_mono.cxx
U libcvd/test/dvbuffer_rgb.cxx
U libcvd/test/dvbuffer_yuvrgb.cxx
U libcvd/test/fast_test.cxx
U libcvd/test/floodfill_test.cc
U libcvd/test/font.cpp
U libcvd/test/o2buffer.cxx
U libcvd/test/test_images.cxx
U libcvd/test/v4l1buffer_bayer.cxx
U libcvd/test/v4l1buffer_mono.cxx
U libcvd/test/v4l1buffer_rgb.cxx
U libcvd/test/v4l2buffer.cxx
U libcvd/test/v4lbuffer_bayerrgb.cxx
U libcvd/test/v4lbuffer_mono.cxx
U libcvd/test/videoprog.cxx
cvs checkout: Updating libcvd/test/fast_test_image
U libcvd/test/fast_test_image/noise.pgm
cvs checkout: Updating libcvd/test/images
U libcvd/test/images/1-byte-bin.pgm
U libcvd/test/images/1-byte-bin.ppm
U libcvd/test/images/1-byte-txt.pgm
U libcvd/test/images/1-byte-txt.ppm
U libcvd/test/images/2-byte-bin.pgm
U libcvd/test/images/2-byte-bin.ppm
U libcvd/test/images/2-byte-txt.pgm
U libcvd/test/images/2-byte-txt.ppm
U libcvd/test/images/colour.jpg
U libcvd/test/images/grey.jpg
cvs checkout: Updating libcvd/test/images/tiff
U libcvd/test/images/tiff/grey-bool-inverted.tiff
U libcvd/test/images/tiff/grey-uint16-normal.tiff
U libcvd/test/images/tiff/grey-uint8-normal.tiff
U libcvd/test/images/tiff/rgb-uint16.tiff
U libcvd/test/images/tiff/rgb-uint8.tiff
cvs checkout: Updating libcvd/util
%% cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/libcvd co -D "Mon May 11 16:29:26 BST 2009" gvars3
실행 결과:
cvs checkout: warning: failed to open /Users/lym/.cvspass for reading: No such file or directory
cvs checkout: Updating gvars3
U gvars3/Authors
U gvars3/GVars2.h.historic
U gvars3/LICENSE
U gvars3/Makefile.in
U gvars3/config.guess
U gvars3/config.sub
U gvars3/configure
U gvars3/configure.ac
U gvars3/fltk2_test
U gvars3/fltk_test
U gvars3/install-sh
U gvars3/main.cc
cvs checkout: Updating gvars3/build
cvs checkout: Updating gvars3/build/vc2005
U gvars3/build/vc2005/gvars3-headless.vcproj
U gvars3/build/vc2005/gvars3.sln
U gvars3/build/vc2005/gvars3.vcproj
cvs checkout: Updating gvars3/build/vc2008
U gvars3/build/vc2008/gvars3-headless.vcproj
U gvars3/build/vc2008/gvars3.sln
U gvars3/build/vc2008/gvars3.vcproj
cvs checkout: Updating gvars3/gvars2_compat
cvs checkout: Updating gvars3/gvars3
U gvars3/gvars3/GStringUtil.h
U gvars3/gvars3/GUI.h
U gvars3/gvars3/GUI_Fltk.h
U gvars3/gvars3/GUI_Fltk2.h
U gvars3/gvars3/GUI_Motif.h
U gvars3/gvars3/GUI_Widgets.h
U gvars3/gvars3/GUI_non_readline.h
U gvars3/gvars3/GUI_readline.h
U gvars3/gvars3/config.h.in
U gvars3/gvars3/default.h
U gvars3/gvars3/gv3_implementation.hh
U gvars3/gvars3/gvars3.h
U gvars3/gvars3/instances.h
U gvars3/gvars3/serialize.h
U gvars3/gvars3/type_name.h
cvs checkout: Updating gvars3/src
U gvars3/src/GStringUtil.cc
U gvars3/src/GUI.cc
U gvars3/src/GUI_Fltk.cc
U gvars3/src/GUI_Fltk2.cc
U gvars3/src/GUI_Motif.cc
U gvars3/src/GUI_impl.h
U gvars3/src/GUI_impl_headless.cc
U gvars3/src/GUI_impl_noreadline.cc
U gvars3/src/GUI_impl_readline.cc
U gvars3/src/GUI_language.cc
U gvars3/src/GUI_non_readline.cc
U gvars3/src/GUI_none.cc
U gvars3/src/GUI_readline.cc
U gvars3/src/gvars2.cc
U gvars3/src/gvars3.cc
U gvars3/src/inst.cc
U gvars3/src/inst_headless.cc
U gvars3/src/serialize.cc
checking for g++... g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for decltype... no
checking for typeof... yes
You're on the development branch of TooN 2.0. Everything will probably work, but
the interface is a bit different from TooN-1.x
If you want TooN-1, then get it using:
cvs -z3 -d:pserver:anoncvs@cvs.savannah.nongnu.org:/cvsroot/toon co -r Maintenance_Branch_1_x TooN
or update what you currently have using:
cvs up -r Maintenance_Branch_1_x
or head over to:
http://mi.eng.cam.ac.uk/~er258/cvd/
Otherwise, please report any bugs you come across.
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
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checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /usr/bin/grep
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checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking for ranlib... ranlib
checking how to run the C++ preprocessor... g++ -E
checking if compiler flag -Wall works... yes
checking if compiler flag -Wextra works... yes
checking if compiler flag -pipe works... yes
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checking if compiler flag -fPIC works... yes
checking build system type... i386-apple-darwin9.7.0
checking host system type... i386-apple-darwin9.7.0
checking for best optimize flags...
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checking CPU type... unknown
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configure: Adding /usr/X11R6/include to the build path.
checking Carbon and QuickTime framework... yes
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checking for X... libraries /usr/X11/lib, headers /usr/X11/include
checking for glDrawPixels in -lGL... yes
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checking GL/glu.h presence... yes
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checking for gluGetString in -lGLU... yes
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checking Old TooN... no
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checking for g++... g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C++ preprocessor... g++ -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
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checking build system type... i386-apple-darwin9.7.0
checking host system type... i386-apple-darwin9.7.0
configure: Adding /sw to the build path.
configure: Adding /opt/local to the build path.
checking if compiler flag -Wall works... yes
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--------------------------
checking for TooN... yes
checking for TooN-2... yes
checking if compiler flag -pthread works... yes
checking for rl_done in -lreadline... yes
------------------------------------------------
Checking for widget libraries (provides GUI_...)
------------------------------------------------
configure: WARNING: No GUI functionality enabled
Options:
toon readline
내 (OS X의) 경우, PTAM/Build/OS X에 있는 모든 (두 개의) 파일 Makefile과 VideoSource_OSX.cc를 PTAM 폴더에 옮겼다.
3-2. video source 셋업
카메라에 맞는 video input file을 컴파일하도록 Makefile을 수정해 주어야 한다.
맥의 경우, (아마도 Logitech Quickcam Pro 5000 을 기준으로 하는) 하나의 소스 파일만이 존재하므로 그대로 두면 될 듯.
3-3. video source 추가
다른 비디오 소스들은 libCVD에 클래스로 만들어져 있다고 한다. 여기에 포함되어 있지 않은 경우에는 VideoSource_XYZ.cc 라는 식의 이름을 갖는 파일을 만들어서 넣어 주어야 한다.
3-4. compile
PTAM 폴더에 들어가서
%% make
실행 결과:
g++ -g -O3 main.cc -o main.o -c -I /MY_CUSTOM_INCLUDE_PATH/ -D_OSX -D_REENTRANT
g++ -g -O3 VideoSource_OSX.cc -o VideoSource_OSX.o -c -I /MY_CUSTOM_INCLUDE_PATH/ -D_OSX -D_REENTRANT
g++ -g -O3 GLWindow2.cc -o GLWindow2.o -c -I /MY_CUSTOM_INCLUDE_PATH/ -D_OSX -D_REENTRANT
In file included from OpenGL.h:20,
from GLWindow2.cc:1:
/usr/local/include/cvd/gl_helpers.h:38:19: error: GL/gl.h: No such file or directory
/usr/local/include/cvd/gl_helpers.h:39:20: error: GL/glu.h: No such file or directory
/usr/local/include/cvd/gl_helpers.h: In function 'void CVD::glPrintErrors()':
/usr/local/include/cvd/gl_helpers.h:569: error: 'gluGetString' was not declared in this scope
make: *** [GLWindow2.o] Error 1
PTAM이 OpenGL을 사용하고 있는데, OpenGL이 Mac에 기본으로 설치되어 있으므로 신경쓰지 않았던 부분이다. 물론 system의 public framework으로 들어가 있음을 확인할 수 있다. 그런데 UNIX 프로그램에서 접근할 수는 없는가? (인터넷에서 검색해 보아도 따로 설치할 수 있는 다운로드 링크나 방법을 찾을 수 없다.)
에러 메시지에 대한 정확한 진단 ->
philphys: 일단 OpenGL은 분명히 있을 건데 그 헤더파일과 라이브러리가 있는 곳을 지정해 주지 않아서 에러가 나는 것 같아. 보통 Makefile에 이게 지정되어 있어야 하는데 실행결과를 보니까 전혀 지정되어 있지 않네. 중간에 보면 -I /MY_CUSTOM_INCLUDE_PATH/ 라는 부분이 헤더 파일의 위치를 지정해 주는 부분이고 또 라이브러리는 뒤에 링크할 때 지정해 주게 되어 있는데 거기까지는 가지도 못 했네.
즉, "링커가 문제가 아니라, 컴파일러 옵션에 OpenGL의 헤더파일이 있는 디렉토리를 지정해 주어야 할 것 같다"고 한다.
문제의 Makefile을 들여다보고
# DO NOT DELETE THIS LINE -- make depend depends on it.
# Edit the lines below to point to any needed include and link paths
# Or to change the compiler's optimization flags CC = g++ -g -O3 COMPILEFLAGS = -I /MY_CUSTOM_INCLUDE_PATH/ -D_OSX -D_REENTRANT LINKFLAGS = -framework OpenGL -framework VecLib -L/MY_CUSTOM_LINK_PATH/ -lGVars3 -lcvd
(다음은 philphys 인용) 파란색 부분 - 각 소스코드를 컴파일한 다음 컴파일된 오브젝트 코드를 실행파일로 링크하는 부분. 여기서는 $(LINKFLAGS)에 링커 프로그램에 전달되는 옵션이 들어간다. 초록색 부분 - 컴파일할 오브젝트 코드의 리스트 분홍색 부분 - CC는 컴파일러 프로그램과 기본 옵션. COMPILEFLAGS는 컴파일러에 전달하는 옵션들, 여기에 헤더 파일의 위치를 정할 수 있다. LINKFLAGS는 컴파일된 오브젝트 코드를 실행파일로 링크하는 링커에 들어가는 옵션. 여기에 라이브러리의 위치와 사용할 라이브러리를 지정해 준다. 라이브러리의 위치는 -L 옵션으로, 구체적인 라이브러리 이름은 -l 옵션으로.
maetel: 사실 프레임웍 안에 gl.h 파일이 있는 위치는 다음과 같다.
/System/Library/Frameworks/OpenGL.framework/Versions/A/Headers
philphys: "근데 코드에서는 그 헤더를 "GL/gl.h"로 찾는다는 게 문제. 이건 프레임웍 방식이 아닌 고전적인 유닉스 Xwindows의 OpenGL 방식이다. 즉 방금 보인 gl.h, glu.h 등이 있는 /usr/X11R6/include 를 COMPILERFLAGS에 -I 옵션으로 넣어 줘야 하는 게 아닐까."
philphys: /usr/X11R6/include 밑에 GL 폴더가 있고 거기에 필요한 헤더파일들이 모두 들어 있다. 그래서 코드에선 "GL/gl.h" 하는 식으로 explicit하게 GL 폴더를 찾게 된다.
그러고 보면 아래와 같은 설명이 있었던 것이다.
Since the Linux code compiles directly against the nVidia driver's GL headers, use of a different GL driver may require some modifications to the code.
CameraCalibrator 파일을 실행시켜 카메라 캘리브레이션을 시도했더니 GUI 창이 뜨는데 연결된 웹캠(Logitech QuickCam Pro 4000)으로부터 입력을 받지 못 한다.
4-0. 증상
CameraCalibrator 실행파일을 열면, 다음과 같은 터미널 창이 새로 열린다.
Last login: Fri Aug 7 01:14:05 on ttys001
%% /Users/lym/PTAM/CameraCalibrator ; exit;
Welcome to CameraCalibrator
--------------------------------------
Parallel tracking and mapping for Small AR workspaces
Copyright (C) Isis Innovation Limited 2008
Parsing calibrator_settings.cfg ....
! GUI_impl::Loadfile: Failed to load script file "calibrator_settings.cfg".
VideoSource_OSX: Creating QTBuffer....
IMPORTANT
This will open a quicktime settings planel.
You should use this settings dialog to turn the camera's
sharpness to a minimum, or at least so small that no sharpening
artefacts appear! In-camera sharpening will seriously degrade the
performance of both the camera calibrator and the tracking system.
>
그리고 Video란 이름의 GUI 창이 열리는데, 이때 아무런 설정을 바꾸지 않고 그대로 OK를 누르면 위의 터미널 창에 다음과 같은 메시지가 이어지면서 자동 종료된다.
.. created QTBuffer of size [640 480]
2009-08-07 01:20:57.231 CameraCalibrator[40836:10b] ***_NSAutoreleaseNoPool(): Object 0xf70e2c0 of class NSThread autoreleasedwith no pool in place - just leaking
Stack: (0x96827f0f 0x96734442 0x9673a1b4 0xbc2db7 0xbc7e9a 0xbc69d30xbcacbd 0xbca130 0x964879c9 0x90f8dfb8 0x90e69618 0x90e699840x964879c9 0x90f9037c 0x90e7249c 0x90e69984 0x964879c9 0x90f8ec800x90e55e05 0x90e5acd5 0x90e5530f 0x964879c9 0x94179eb9 0x282b48 0xd9f40xd6a6 0x2f16b 0x2fea4 0x26b6)
! Code for converting from format "Raw RGB data"
not implemented yet, check VideoSource_OSX.cc.
logout
[Process completed]
그러므로 3-3의 문제 -- set up video source (비디오 소스 셋업) --로 돌아가야 한다.
즉, VideoSource_OSX.cc 파일을 수정해서 다시 컴파일한 후 실행해야 한다.
Other video source classes are available with libCVD. Finally, if a custom video source not supported by libCVD is required, the code for it will have to be put into some VideoSource_XYZ.cc file (the interface for this file is very simple.)
삽질...
터미널에서 calibrator_settings.cfg 파일을 로드하지 못 했다고 하기에, 그 파일을 찾아보았다.
%% find . -name "calibrator_settings.cfg" -print
./calibrator_settings.cfg
알고 보니 ./는 현재 디렉토리를 말하나 보다. PTAM 폴더 밑에 바로 있다. 왜 못 봤을까...
열어 보니 다음과 같다.
// This file is parsed by the CameraCalibrator executable
// Put any custom gvars settings you want in here
// For example: to increase the camera calibrator's blur parameter,
// uncomment the following line
// CameraCalibrator.BlurSigma=2.0
VideoSource::VideoSource()
{
cout << " VideoSource_OSX: Creating QTBuffer...." << endl;
cout << " IMPORTANT " << endl;
cout << " This will open a quicktime settings planel. " << endl
<< " You should use this settings dialog to turn the camera's " << endl
<< " sharpness to a minimum, or at least so small that no sharpening " << endl
<< " artefacts appear! In-camera sharpening will seriously degrade the " << endl
<< " performance of both the camera calibrator and the tracking system. " << endl;
QTBuffer<yuv422>* pvb;
try
{
pvb= new QTBuffer<yuv422>(ImageRef(640,480), 0, true);
}
catch (CVD::Exceptions::All a)
{
cerr << " Error creating QTBuffer; expection: " << a.what << endl;
exit(1);
}
mptr = pvb;
mirSize = pvb->size();
cout << " .. created QTBuffer of size " << mirSize << endl;
};
그러나 위에서 보듯 size가 맞지 않고 frame이 겹치는 등 넘어갈 수 없는 문제가 있다. (오른쪽 이미지는 같은 상황에서의 비교를 위해 맥용 드라이버 macam에서의 입력을 캡쳐한 것.)
터미널에서의 결과:
%% /Users/lym/PTAM/CameraCalibrator ; exit;
Welcome to CameraCalibrator
--------------------------------------
Parallel tracking and mapping for Small AR workspaces
Copyright (C) Isis Innovation Limited 2008
Parsing calibrator_settings.cfg ....
! GUI_impl::Loadfile: Failed to load script file "calibrator_settings.cfg".
VideoSource_OSX: Creating QTBuffer....
IMPORTANT
This will open a quicktime settings planel.
You should use this settings dialog to turn the camera's
sharpness to a minimum, or at least so small that no sharpening
artefacts appear! In-camera sharpening will seriously degrade the
performance of both the camera calibrator and the tracking system.
> .. created QTBuffer of size [640 480]
2009-08-12 23:10:38.309 CameraCalibrator[5110:10b] *** _NSAutoreleaseNoPool(): Object 0xf8054e0 of class NSThread autoreleased with no pool in place - just leaking
Stack: (0x96670f4f 0x9657d432 0x965831a4 0xc17db7 0xc1ce9a 0xc1b9d3 0xc1fcbd 0xc1f130 0x924b09c9 0x958e8fb8 0x957c4618 0x957c4984 0x924b09c9 0x958eb37c 0x957cd49c 0x957c4984 0x924b09c9 0x958e9c80 0x957b0e05 0x957b5cd5 0x957b030f 0x924b09c9 0x90bd4eb9 0x282b48 0xd9e4 0xd5a6 0x2f15b 0x2fe94 0x25b6)
4-1-2. YUV format 확인
Logitech QuickCam Pro 4000는 YUV420P라는 글을 어디선가 보고, 코드의 yuv422 부분을 yuv420p로 바꾸었으나 증상은 그대로이다.
skype forum:
There is another problem here with Xgl unfortunately, as it
isn'tsupporting the YUV420P (I420) overlay colour/pixel format either.
Soeven if the camera captures successfully (which looks okay on
thosesettings), then you still won't see anything.
왼쪽: macam에서 캡쳐한 이미지 / 오른쪽: PTAM CameraCalibrator에서 보여지는 이미지
Logitech QuickCam Pro 4000
Welcome to CameraCalibrator
--------------------------------------
Parallel tracking and mapping for Small AR workspaces
Copyright (C) Isis Innovation Limited 2008
Parsing calibrator_settings.cfg ....
VideoSource_OSX: Creating QTBuffer....
IMPORTANT
This will open a quicktime settings planel.
You should use this settings dialog to turn the camera's
sharpness to a minimum, or at least so small that no sharpening
artefacts appear! In-camera sharpening will seriously degrade the
performance of both the camera calibrator and the tracking system.
> .. created QTBuffer of size [640 480]
2009-08-13 04:02:50.464 CameraCalibrator[6251:10b] ***
_NSAutoreleaseNoPool(): Object 0x9df180 of class NSThread autoreleased
with no pool in place - just leaking
Stack: (0x96670f4f 0x9657d432 0x965831a4 0xbc2db7 0xbc7e9a 0xbc69d3
0xbcacbd 0xbca130 0x924b09c9 0x958e8fb8 0x957c4618 0x957c4984
0x924b09c9 0x958eb37c 0x957cd49c 0x957c4984 0x924b09c9 0x958e9c80
0x957b0e05 0x957b5cd5 0x957b030f 0x924b09c9 0x90bd4eb9 0x282b48 0xd414
0xcfd6 0x2f06b 0x2fda4)
4-2. Camera Calibrator 실행
Camera calib is [ 1.51994 2.03006 0.499577 0.536311 -0.0005 ]
Saving camera calib to camera.cfg...
.. saved.
5. PTAM 실행
Welcome to PTAM
---------------
Parallel tracking and mapping for Small AR workspaces
Copyright (C) Isis Innovation Limited 2008
Parsing settings.cfg ....
VideoSource_OSX: Creating QTBuffer....
IMPORTANT
This will open a quicktime settings planel.
You should use this settings dialog to turn the camera's
sharpness to a minimum, or at least so small that no sharpening
artefacts appear! In-camera sharpening will seriously degrade the
performance of both the camera calibrator and the tracking system.
> .. created QTBuffer of size [640 480]
2009-08-13 20:17:54.162 ptam[1374:10b] *** _NSAutoreleaseNoPool(): Object 0x8f5850 of class NSThread autoreleased with no pool in place - just leaking
Stack: (0x96670f4f 0x9657d432 0x965831a4 0xbb9db7 0xbbee9a 0xbbd9d3 0xbc1cbd 0xbc1130 0x924b09c9 0x958e8fb8 0x957c4618 0x957c4984 0x924b09c9 0x958eb37c 0x957cd49c 0x957c4984 0x924b09c9 0x958e9c80 0x957b0e05 0x957b5cd5 0x957b030f 0x924b09c9 0x90bd4eb9 0x282b48 0x6504 0x60a6 0x11af2 0x28da 0x2766)
ARDriver: Creating FBO... .. created FBO.
MapMaker: made initial map with 135 points.
MapMaker: made initial map with 227 points.
CameraCalibrator를 실행하면 뜨는 GUI 창에서 다음과 같이 기본 설정이 적용되고,
Source: iSight
Compression type: Component Video - CCIR-601 uyvy
rms error 0.3 이하로 깔끔하게 수렴된 카메라 파라미터의 계산값이 다음과 같은 식으로 나올 때,
Camera calib is [ 1.22033 1.62577 0.489375 0.641251 0.544352 ]
PTAM을 실행하면 위의 Logitech QuickCam 두 기종보다는 features를 보다 잘 잡는다. (아직은 많이 부족하지만...)
Welcome to PTAM
---------------
Parallel tracking and mapping for Small AR workspaces
Copyright (C) Isis Innovation Limited 2008
Parsing settings.cfg ....
VideoSource_OSX: Creating QTBuffer....
IMPORTANT
This will open a quicktime settings planel.
You should use this settings dialog to turn the camera's
sharpness to a minimum, or at least so small that no sharpening
artefacts appear! In-camera sharpening will seriously degrade the
performance of both the camera calibrator and the tracking system.
> .. created QTBuffer of size [640 480]
ARDriver: Creating FBO... .. created FBO.
MapMaker: made initial map with 242 points.
MapMaker: made initial map with 259 points.
MapMaker: made initial map with 323 points.
MapMaker: made initial map with 626 points.
stack = a linear list with a last-in-first-out (LIFO) structure
recursion stack
return address = location of the program instruction to execute once the invoked method completes
http://en.wikipedia.org/wiki/Abstract_data_type
An abstract data type (ADT) is a specification of a set of data and the set of operations that can be performed on the data. Such a data type is abstract in the sense that it is independent of various concrete implementations.
In software engineering, an abstract type is a type in a nominative type system which is declared by the programmer, and which has the property that it contains members which are also members of some declared subtype. In many object oriented programming languages, abstract types are known as abstract base classes, interfaces, traits, mixins, flavors, or roles.
a Windows-specific header file for the C programming language which contains all the function declarations in the API, as well as declarations for all the common macros used by windows programmers, and all the data types used by the various functions and subsystems. http://en.wikibooks.org/wiki/Windows_Programming
183p Pointers are also called address variables because they contain the addresses of other variables.
184p Pointers can be used as a quick and simple way to access arrays. (...) Pointers can be used to create new variables and complex data structures such as linked lists and trees.
185p The operator ampersand (&) returns the address of a thing which is a pointer. The operator asterisk (*) returns the object to which a pointer points.
Operator - Meaning * - Dereference (given a pointer, get the thing referenced) & - Address of (given a thing, point to it)
The operator ampersand (&) returns the address of a thing which is a pointer. The operator asterisk (*) returns the object to which a pointer points.
int *thing_ptr; // declare a pointer to a thing thing_ptr = &thing; // point to the thing *thing_ptr = 5; // set "thing" to 5 // The expression &thing is a pointer to a thing. The variable thing is an object // thing_ptr points to any integer. It may or may not point to the specific variable thing.
The & (address of operator) gets the address of an object (a pointer).
The * (dereference operator) tells C to look at the data pointed to, not hte pointer itself.
Instead of having to move a lot of data around, we can declare an array of pointers and then sort the pointers.
Command-Line Arguments
main (int argc, char *argv[]) {
The parameter argc is the number of arguments on the command line (including the program name). The array argv contains the actual arguments.
(reminding...) 터미널에서, 말씀하신대로 "./V2008122-01 input.txt"라고 치면 다음과 같이 나옵니다.
argc=2
argv[0]=./V2008122-01
argv[1]=input.txt
서 교수님: argv[0] = 실행프로그램 이름; 1번째는 항상 실행프로그램의 패스/이름 이 들어갑니다.
이번에는 argv[1] 에 들어갈 두 번째 값을 주었기 때문에 그 값이 프린트 된 것입니다. command-line arguments는 shell 프로그램이 fileio 함수를 호출할 때 매개변수로 주는 것이고, 좀 더 엄밀하게는 OS 가 main 함수를 호출할 때 주는 것입니다.
// formats files for printing // usage: print [options] file(s)
#include <stdio.h> #include <stdlib.h>
int verbose = 0; // verbose mode (default = false) char *out_file = "print.out"; //output filename char *program_name; // name of the program for erros int line_max = 66; // number of lines per page
999:~/cintro/ch13/eg12 lym$ ./ch13eg12 Verbose 0 Lines 66 Input printf.in Output print.out 999:~/cintro/ch13/eg12 lym$ ./ch13eg12 i am tired Verbose 0 Lines 66 Input i Output print.out Verbose 0 Lines 66 Input am Output print.out Verbose 0 Lines 66 Input tired Output print.out 999:~/cintro/ch13/eg12 lym$ ./ch13eg12 -v -l128 -0title xfile yfile zfile Bad option -0title Usage is ./ch13eg12 [options] [file-list] Options -v verbose -l<number> Number of line -o<name> Set output filename 999:~/cintro/ch13/eg12 lym$ ./ch13eg12 -v -l128 -otitle xfile yfile zfile Verbose 1 Lines 128 Input xfile Output title Verbose 1 Lines 128 Input yfile Output title Verbose 1 Lines 128 Input zfile Output title
208p A pointer does not create any new space for data, but just refers to data that is created elsewhere.
http://www.cplusplus.com/doc/tutorial/pointers.html The identifier of an array is equivalent to the address of its first
element, as a pointer is equivalent to the address of the first element
that it points to, so in fact they are the same concept.
strcmp Compare two strings Returns an integral value indicating the relationship between the strings: A zero value indicates that both strings are equal. A value greater than zero indicates that the first character that does not match has a greater value in str1 than in str2; And a value less than zero indicates the opposite.
printf format tags %[flags][width][.precision][length]specifier
atoi Convert string to integer
On success, the function returns the converted integral number as an int value. If no valid conversion could be performed, a zero value is returned. If the correct value is out of the range of representable values, INT_MAX or INT_MIN is returned.
StudentRecord record[NStudent];
StudentRecord *record; StudentRecord *record_c;
record = new StudentRecord[NStudent]; // C++ version of allocating a memory block
record_c = (StudentRecord *) malloc (sizeof(StudentRecord)*NStudent); // C version of allocating a memory block // void * malloc ( size_t size );
서 교수님: 두 개의 struct type 데이터에 대해서, A = B;라고 하여 B를 A에 assign 하는 경우 대부분은 성립합니다. 그러나, struct 내부에서 배열을 가지고 있는 경우에는 그렇지 않습니다. 그래서 memcpy() 라는 함수를 사용하여 메모리를 블럭 단위로 카피하는 방법이 있습니다. 이는 음악 CD나 DVD 의 바이너리 카피를 만드는 것과 같은 이치입니다.