Title :
Extent projected sphere centre deviates from perspective elliptical contour centre
Author :
Zheng, Y. ; Liu, Y.
Author_Institution :
Image Process. & Pattern Recognition Inst., Shanghai Jiao Tong Univ., Shanghai
Abstract :
A quantitative analysis of the deviation between the projected sphere centre (i.e. the projection of the centre of a sphere) and the perspective elliptical contour centre (i.e. the centre of the elliptical contour of the sphere´s projection) is presented. This analysis helps to determine how much error arises from the widely applied approximation to substitute the latter for the former.
Keywords :
approximation theory; geometry; image processing; approximation; perspective elliptical contour centre; projected sphere centre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081167
