2007년 춘계 학술대회
Current Result Document : 5 / 5
| 한글제목(Korean Title) |
A Hierarchical Mode Decision Method for H.264 Intra Image Coding |
| 영문제목(English Title) |
A Hierarchical Mode Decision Method for H.264 Intra Image Coding |
| 저자(Author) |
Jiantan Liu
Kook-yeol Yoo
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| 원문수록처(Citation) |
VOL 14 NO. 01 PP. 0297 ~ 0300 (2007. 05) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Due to its impressive compression performance, the H.264 video coder is highlighted in the video communications industry, such as DMB (Digital Multimedia Broadcasting), PMP (Portable Multimedia Player), etc. The main bottleneck to use the H.264 coder lays in the computational complexity, i.e. five times more complex than the market leading MPEG-4 Simple Profile codec. In this paper, we propose the hierarchical mode decision method for intraframe coding for the reduction of the computation complexity of the encoder. By determining the mode group early, the propose algorithm can skip the computationally demanding computation in the mode decision. The proposed algorithm is composed of three steps: 16x16 mode decision, 4x4 mode-group decisions, and final mode decision among the selected mode group. The simulation results show that the proposed algorithm achieves 20% to 50% reduction in the computational complexity compared with the conventional algorithm. |
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