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Motion estimation plays an important role in inter-frame prediction for the video coding standards such as H.264/AVC, MPEG-2, MPEG-4, VC-1, and so on. Its huge computation complexity, however, makes it difficult to achieve real-time coding for the HDTV1080p. In this paper, we propose a dynamic search range algorithm which reduces about 80% of search points in full search algorithm for the H.264/AVC...
In AVS video coding standard, some algorithms consume huge computation with relatively little coding performance contribution, and some algorithms create data dependencies that are harmful for efficient hardware pipeline. This paper focuses on hardware oriented algorithm analysis and modification. Motion estimation and mode decision algorithms are reviewed and modified to a hardware friendly configuration...
The latest H.264/AVC standard can provide us superior coding performance. However, the new technique also brings about complexity problem, especially in motion estimation (ME) part. In hardware, the pipeline stage division of H.264 based ME engine degrades many software oriented complexity reduction schemes. In our paper, we propose one VLSI friendly fast ME algorithm. Firstly, pixel difference based...
The computational complexity and hardware design of block-matching criteria were discussed, and a novel MPDC algorithm and its VLSI structure for H.264 were presented, in which a QP adaptive MPDC threshold was derived from the basics of H.264 4??4 integer transform and 52-level scalar quantization and the calculation process was adjusted for hardware optimization. When QP is greater than 18, the proposed...
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