Title :
A differential invariant for zooming
Author :
Siebert, Andreas
Author_Institution :
Dept. of Comput. Sci., British Columbia Univ., Vancouver, BC, Canada
Abstract :
This paper presents an invariant under scaling and linear brightness change. The invariant is based on differentials and therefore is a local feature. Rotationally invariant 2-d differential Gaussian operators up to third order are proposed for the implementation of the invariant. The performance is analyzed by simulating a camera zoom-out
Keywords :
computer vision; image retrieval; camera zoom-out; differential invariant; invariant under scaling; zooming; Analytical models; Brightness; Cameras; Computer science; Ear; Focusing; Geometry; Image retrieval; Performance analysis; Robustness;
Conference_Titel :
Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-5467-2
DOI :
10.1109/ICIP.1999.817166
