Title :
An Improved Method For Camera Calibration
Author :
Jie-xian Zeng ; Fu, Xiang ; Jie-xian Zeng ; Li, Si-Xin ; Tian, Bing ; Yu, De-Sheng
Author_Institution :
Sch. of Comput., Nanchang Hangkong Univ., Nanchang, China
Abstract :
DLT (direct linear transformation) is one of the most popular methods of data simplification for camera calibration. An improved DLT method is proposed, the projective pseudo-inverse matrix is used to describe the relations between 2D coordinates and 3D coordinates, the improved DLT method can calculate the projective pseudo-inverse matrix based on only 4 known pixel points. The experiment results show that the proposed method is more efficient and more lightly limited by the prerequisites than traditional one, so it can be widely used in practice.
Keywords :
calibration; cameras; matrix algebra; 2D coordinates; 3D coordinates; camera calibration; direct linear transformation method; projective pseudo-inverse matrix; Calibration; Digital cameras; Digital images; Educational institutions; Information science; Laboratories; Mathematics; Nondestructive testing; Pixel; Solid modeling;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5305218
