| Paper: | WP-P6.2 |
| Session: | Image Coding IV |
| Time: | Wednesday, September 19, 14:30 - 17:10 |
| Presentation: |
Poster
|
| Title: |
OPTIMAL PRUNING QUAD-TREE BLOCK-BASED BINARY SHAPE CODING |
| Authors: |
Zhenliang Shen; University of New South Wales | | |
| | Michael Frater; University of New South Wales | | |
| | John Arnold; University of New South Wales | | |
| Abstract: |
In object-based video coding, shape masks are used to specify the shape of a video object. The binary shape means each pixel is either background or object. In this paper, we present a new lossless block-based coding algorithm for binary shapes that combines a quad-tree structure with block-based arithmetic coding; an optimal pruning quad-tree structure searching algorithm is proposed to further reduce the spatial redundancy of quad-tree blocks. Experimental results demonstrate that this new approach provides a saving in bits generated between approximately 40-75% compared to the MPEG-4 binary shape coding algorithm. |
