Title :
Registration and occlusion detection in motion blur
Author :
Punnappurath, Abhijith ; Rajagopalan, Ambasamudram Narayanan ; Seetharaman, Guna
Author_Institution :
Dept. of Electr. Eng., IIT Madras, Chennai, India
Abstract :
We address the problem of automatically detecting occluded regions given a blurred/unblurred image pair of a scene taken from different viewpoints. The occlusion can be due to single or multiple objects. We present a unified framework for detecting occluder(s) that is reasonably robust to non-uniform motion blur as well as variations in camera pose (without the need for deblurring). We assume that the occluded pixels occupy only a relatively small area and that the camera motion trajectory is sparse in the camera motion space. We validate the performance of our algorithm with experiments on synthetic and real data.
Keywords :
image motion analysis; image registration; image restoration; object detection; blurred-unblurred image pair; camera motion space; camera motion trajectory; camera pose; nonuniform motion blur; occluded pixels; occluded region detection; occluder detection; registration; Occlusion; non-uniform blur; registration; sparsity;
Conference_Titel :
Image Processing (ICIP), 2013 20th IEEE International Conference on
Conference_Location :
Melbourne, VIC
DOI :
10.1109/ICIP.2013.6738519