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Technical Program
Paper Detail
| Paper: | TA-P2.1 |
| Session: | H.264 Video Coding - II |
| Time: | Tuesday, October 10, 09:40 - 12:20 |
| Presentation: |
Poster
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| Title: |
EFFECTIVELY DETECTING ALL-ZERO DCT BLOCKS FOR H.264 OPTIMIZATION |
| Authors: |
Hanli Wang; City University of Hong Kong | | | | | Sam Kwong; City University of Hong Kong | | | | | Chi-Wah Kok; Hong Kong Applied Science & Technology Research Institution Co. Ltd. | | |
| Abstract: |
This paper presents a novel efficient algorithm to reduce redundant DCT and quantization computations for H.264 encoding. A theoretical analysis is performed to study the sufficient condition for DCT coefficients to be quantized to zeros in H.264. As a result, a more tight sufficient condition is derived to early detect all-zero 4x4 DCT blocks. Compared with other algorithms, the proposed algorithm provides a more precise and efficient condition to predict all-zero DCT blocks. The experimental results demonstrate that the proposed algorithm outperforms other algorithms in terms of all the evaluated performances. |
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