淡江大學機構典藏:Item 987654321/50554
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/50554


    Title: Fast intra prediction mode decision algorithm for 4×4 Blocks in H.264/ MPEG-4 AVC
    Authors: 江正雄;Chiang, Jen-shiun;Hsia, Chilh-hsien;Teng, Tsai-yuan
    Contributors: 淡江大學電機工程學系
    Keywords: H.264/MPEG-4 AVC;Intra Prediction;Fast Intra Prediction Mode Decision Algorithm FIPMDA
    Date: 2008-03-01
    Issue Date: 2010-08-09 19:46:31 (UTC+8)
    Publisher: 淡江大學
    Abstract: The H.264/MPEG-4 (Advanced Video Coding) AVC video coding includes a multidirectional spatial prediction method to reduce spatial redundancy by using neighboring samples as a prediction for the samples in a block of data to be encoded. The main goal of the intra prediction is to achieve better compression efficiency. For finding the optimal prediction modes, H.264/MPEG-4 AVC adopts the full search algorithm in the standard. The high computation complexity of the full search algorithm makes the encoding of H.264/MPEG-4 AVC to be difficult to meet real time applications. In this work, we proposed a Fast Intra Prediction Mode Decision Algorithm (FIPMDA) for 4 4 intra blocks, which is based on the partially sampling prediction and symmetry of the adjacent angle modes, to reduce the computational time and low complexity of the 4 4 block intra-prediction. Experimental results show that the proposed method can reduce the encoder time of the intra prediction by more than 60% while maintaining similar video bit rate and quality.
    Relation: 淡江理工學刊 = Tamkang Journal of Science and Engineering 11(1), pp.49-54
    DOI: 10.6180/jase.2008.11.1.07
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Journal Article

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