Title :
Region growing motion segmentation and estimation in object-oriented video coding
Author :
Yemez, Yücel ; Sankur, B. ; Anarim, Emin
Author_Institution :
Dept. of Electr. & Electron. Eng., Bogazici Univ., Istanbul, Turkey
Abstract :
This paper addresses the problem of object based image coding for the purpose of video transmission at very low bit rates (below 32 kbit/s). Each frame of an image sequence is first segmented into temporally unchanged (background) and changed regions via a change detector. Then the changed regions are subdivided into arbitrarily shaped model failure and model compliance regions so as to satisfy the chosen quadratic transform motion model. Our work brings in two original contributions: (1) the use of region growing motion segmentation, and (2) joint use of quadratic transform with optical flow motion estimation
Keywords :
image segmentation; image sequences; motion compensation; motion estimation; transform coding; video coding; change detector; image background regions; image segmentation; image sequence; motion compensation; object based image coding; object oriented video coding; optical flow motion estimation; quadratic transform; quadratic transform motion model; region growing motion estimation; region growing motion segmentation; shaped model compliance regions; shaped model failure regions; temporally changed regions; temporally unchanged regions; very low bit rate transmission; video transmission; Computer vision; Image coding; Image motion analysis; Image segmentation; Layout; Motion estimation; Motion segmentation; Object oriented modeling; Parameter estimation; Video coding;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560906
