A framework for modeling appearance change in image sequences ICCV '98

11 June 2010

01:57

A framework for modeling appearance change in image sequences, Black, M. J., Fleet, D. J., Yacoob, Y., Sixth International Conf. on Computer Vision, ICCV'98, Mumbai, India, Jan. 1998, pp. 660-667. Image "appearance" may change over time due to a variety of causes such as 1) object or camera motion; 2) generic photometric events including variations in illumination (e.g. shadows) and specular reflections; and 3) "iconic changes" which are specific to the objects being viewed and include complex occlusion events and changes in the material properties of the objects. We propose a general framework for representing and recovering these "appearance changes'' in an image sequence as a "mixture" of different causes. The approach generalizes previous work on optical flow to provide a richer description of image events and more reliable estimates of image motion.