Title :
Recursive estimation of illuminant motion from flow field
Author :
Deshpande, S.G. ; Chaudhuri, S.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India
Abstract :
We consider the problem of estimating the motion of a light source, given a sequence of images of a stationary, unknown object illuminated by it. The apparent flow field induced on the image plane is used to recover the motion parameters. The motion is assumed to be uniform between the successive image frames. A recursive total least squares estimator is developed to track the motion of the illuminant. We present typical simulation results to validate the proposed scheme
Keywords :
image sequences; least squares approximations; light sources; motion estimation; recursive estimation; flow field; illuminant motion; image frames; image plane; image sequence; light source; motion estimation; motion parameters; motion tracking; recursive total least squares estimator; simulation results; stationary unknown object; Cameras; Costs; Glass; Image sequences; Light sources; Motion estimation; Recursive estimation; Shape; Taylor series; Tracking;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560842
