| Summary: | 碩士 === 中原大學 === 電機工程研究所 === 92 === In recent years, H.263 has already been developed into a very ripe compression standard, have already applied to many kinds of products; But with the change of <a href="http://www.ntsearch.com/search.php?q=science&v=56">science</a> and technology, the <a href="http://www.ntsearch.com/search.php?q=promotion&v=56">promotion</a> of the <a href="http://www.ntsearch.com/search.php?q=network&v=56">network</a> and <a href="http://www.ntsearch.com/search.php?q=multimedia&v=56">multimedia</a> technology, user's requisition for quality of video-information and transmission speed is tighter and tighter and severe , not only require the transmission speed to be quick , but also the quality of video-information needs the suitable level; But bigger and bigger with the materials amount that the <a href="http://www.ntsearch.com/search.php?q=multimedia&v=56">multimedia</a> is transmitted, the compression efficiency of H.263 has been already insufficient.
And latest H.264 put forward compresses the standard, adopts more complicated code way, including can use the smaller block to predict , can also consult five <a href="http://www.ntsearch.com/search.php?q=pictures&v=56">pictures</a> forward , in some integer <a href="http://www.ntsearch.com/search.php?q=search&v=56">search</a> find 1/4 of the accuracy , enable predicting more perfect, offer the location rate lower than H.263 and better video-information quality . Want to find 1/2 or 1/4 of the accuracy in H.264, usually adopt the method of the stratum type, namely what searched intactly after several o'clock and just made the integer of flying and clicked was searched .
In this thesis , though can consult five <a href="http://www.ntsearch.com/search.php?q=pictures&v=56">pictures</a> and 1/4 of the accuracy in not supporting H.264 , but has put forward a kind of fast and efficient movement and estimated the way to examine , can finish searching 1/2 at the same <a href="http://www.ntsearch.com/search.php?q=time&v=56">time</a> after searching integer pel , speed of big improvement operation.
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