TY - GEN
T1 - A convenient and fast method of endoscope calibration under surgical environment
AU - Liu, Meiqing
AU - Yan, Dayuan
AU - Hu, Xiaoming
AU - Zhou, Ya
AU - Wu, Zhaoguo
PY - 2013
Y1 - 2013
N2 - How to get the calibration parameters of an endoscopic camera online is one of the most important steps in the three-dimensional reconstruction and draws great attention from researchers. One of general approach requires two persons and one accurate pre-printed checkerboard, which is not desirable in actual use. In this paper, a convenient endoscope calibration method is presented. Instead of preparing a checkerboard in advance, computer display screen is used as a flexible calibrating-board to display checkerboards with different sizes to fill the endoscopic view. Instead of holding the checkerboard with different posture, the user could hold the endoscopic camera in front of the screen-displayed calibrating-board in various orientations. The whole calibration process can be implemented by just one person, which is of practical significance in real operating room. The experimental results show that such method is time-saving without additional manual intervention. The precision of calibration can be achieved at sub-pixel.
AB - How to get the calibration parameters of an endoscopic camera online is one of the most important steps in the three-dimensional reconstruction and draws great attention from researchers. One of general approach requires two persons and one accurate pre-printed checkerboard, which is not desirable in actual use. In this paper, a convenient endoscope calibration method is presented. Instead of preparing a checkerboard in advance, computer display screen is used as a flexible calibrating-board to display checkerboards with different sizes to fill the endoscopic view. Instead of holding the checkerboard with different posture, the user could hold the endoscopic camera in front of the screen-displayed calibrating-board in various orientations. The whole calibration process can be implemented by just one person, which is of practical significance in real operating room. The experimental results show that such method is time-saving without additional manual intervention. The precision of calibration can be achieved at sub-pixel.
KW - computer display screen
KW - endoscope calibration
KW - image processing
KW - sub-pixel
UR - http://www.scopus.com/inward/record.url?scp=84884478059&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-40246-3_63
DO - 10.1007/978-3-642-40246-3_63
M3 - Conference contribution
AN - SCOPUS:84884478059
SN - 9783642402456
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 507
EP - 514
BT - Computer Analysis of Images and Patterns - 15th International Conference, CAIP 2013, Proceedings
T2 - 15th International Conference on Computer Analysis of Images and Patterns, CAIP 2013
Y2 - 27 August 2013 through 29 August 2013
ER -