블로그 이미지
Leeway is... the freedom that someone has to take the action they want to or to change their plans.
maetel

Notice

Recent Post

Recent Comment

Recent Trackback

Archive

calendar

 « 2024.5  »
일 월 화 수 목 금 토
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
  • total
  • today
  • yesterday

Category

Dazhi Chen & Guangjun Zhan, "A New Sub-Pixel Detector for X-Corners in Camera Calibration Targets"

2010. 9. 26. 15:57 Computer Vision
Dazhi Chen & Guangjun Zhan, "A New Sub-Pixel Detector for X-Corners in Camera Calibration Targets," WSCG Short Papers (2005): 97-100
dazhiChen_2005wscg.pdf



The School of Instrumentation Scienc & Optoelectronics Engineering (SISOE), Beijing University of Aeronautics and Astronautics
저작자표시 비영리 동일조건

'Computer Vision' 카테고리의 다른 글

OpenCV: cvFindChessboardCorners() 함수  (0) 2010.09.27
OpenCV: cvThreshold() 함수 연습  (0) 2010.09.26
Luca Lucchese & Sanjit K. Mitra "Using saddle points for subpixel feature detection in camera calibration targets"  (0) 2010.09.26
D. C. Brown,  (0) 2010.09.25
Otsu's method  (0) 2010.09.25
posted by maetel

Luca Lucchese & Sanjit K. Mitra "Using saddle points for subpixel feature detection in camera calibration targets"

2010. 9. 26. 15:47 Computer Vision
L. Lucchese and S.K. Mitra. Using saddle points for subpixel feature detection in camera calibration targets. In Proceedings of the 2002, Asia Pacific Conference on Circuits and Systems, volume 2, pages 191-195, 2002.
lucaLucchese_2002apccs.pdf



저작자표시 비영리 동일조건

'Computer Vision' 카테고리의 다른 글

OpenCV: cvThreshold() 함수 연습  (0) 2010.09.26
Dazhi Chen & Guangjun Zhan, "A New Sub-Pixel Detector for X-Corners in Camera Calibration Targets"  (0) 2010.09.26
D. C. Brown,  (0) 2010.09.25
Otsu's method  (0) 2010.09.25
Janne Heikkila & Olli Silven "A Four-step Camera Calibration Procedure with Implicit Image Correction"  (0) 2010.09.24
posted by maetel

OpenCV: cvFindCornerSubPix()

2010. 6. 4. 22:16 Computer Vision
OpenCV 함수 cvFindCornerSubPix or cv::cornerSubPix

ref.
Learning OpenCV: Chapter 10. Tracking and Motion: "Subpixel Corners"
319p: If you are processing images for the purpose of extracting geometric measurements, as opposed to extracting features for recognition, then you will normally need more resolution than the simple pixel values supplied by cvGoodFeaturesToTrack(). That is subpixels come with integer coordinates whereas we sometimes require real-valued coordinates.

source code file: /opencv/src/cv/cvcornersubpix.cpp
link: https://code.ros.org/trac/opencv/browser/tags/2.1/opencv/src/cv/cvcornersubpix.cpp


fitting a curve (a parabola)
ref. newer techniques
Lucchese02
Chen05

CvTermCriteria


icvGetRectSubPix_8u32f_C1R()
definition: source code file: /opencv/src/cv/cvsamplers.cpp


icvSepConvSmall3_32f()
definition: source code file: /opencv/src/cv/cvderiv.cpp


저작자표시 비영리 동일조건

'Computer Vision' 카테고리의 다른 글

G. Jiang and L. Quan "Detection of concentric circles for camera calibration"  (0) 2010.06.08
Xiaochun Cao & Hassan Foroosh "CAMERA CALIBRATION WITHOUT METRIC INFORMATION USING 1D OBJECTS"  (0) 2010.06.08
OpenCV: cvCalibrateCamera2( )  (0) 2010.06.02
Duane C. Brown "Close-Range Camera Calibration"  (0) 2010.06.02
test: composing OpenCV Iplimage and OpenGL graphics in one window screen  (0) 2010.05.30
posted by maetel

티스토리툴바