| Paper: | IMDSP-L6.3 | ||
| Session: | Interframe Subband/Wavelet Video Coding | ||
| Time: | Friday, May 21, 10:10 - 10:30 | ||
| Presentation: | Lecture | ||
| Topic: | Image and Multidimensional Signal Processing: Image and Video Coding | ||
| Title: | DIRECTIONAL SPATIAL I-BLOCKS FOR THE MC-EZBC VIDEO CODER | ||
| Authors: | John Woods; Rensselaer Polytechnic Institute | ||
| Yongjun Wu; Rensselaer Polytechnic Institute | |||
| Abstract: | In subband/wavelet interframe video compression, motion-compensated coders make use of detected motion paths to compress the data. When these motion paths are not valid, due to either occlusion or difficulty in their estimation, artifacts can sometimes be created in the embedded lower frame rate video. Since these coders are intended for scalable application, it is important that the lower frame rate video be as free of artifacts as possible. The incorporation of I-blocks in the context of hierarchical variable size block matching (HVSBM) allows for inevitable occasional poorly connected motion blocks. Directional spatial interpolation can then be employed to minimize such a block's energy in a temporal high frame. Results are provided for the MC-EZBC coder that has been recently under investigation by MPEG. | ||
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