| Summary: | 碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 96 === As multimedia application popularization and image processing technique progression, both performance and size of multimedia file have a big amount of increment. Therefore, the new video compressed standard and its encoding/decoding techniques are discussed and developed broadly. The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG developed a new standard “H.264”, is regarded as the next generation video compression standard. In H.264, it provides two video compression schemes: Compress data by reducing the spatial redundancy, called I frame; compress data by reducing the temporal redundancy, called P frame. In this thesis, we proposed a fast and efficient method in H.264 software decoding in I frame. By using assembly language coding and special C coding techniques, we can reach real-time decoding in H.264 I-frame. Experimental Results shows we can achieve 70 times improvements on average in QCIF format, compared with JM decoder, without any video quality loss.
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