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Date: Monday, 25-Nov-96 00:16:59 GMT
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<HTML><TITLE>MPEG Browser</TITLE><h1>MPEG Browser</h1><img allign=top src="picture.gif"></p><h2> What is MPEG Browser? </h2><p>Until now we could view mpegs just like we could watchmovies. Unfortunately, we were unable to take the advantage ofdigital format: I have not seen mpeg players allowing user to skip toarbitrary frame, fast forward, rewind, etc. </p><p>Even more importantly, the video was basically a sequence of frameswith no structure. But it is obvious that video higher structure thanframes: we can partition video into shots, scenes and larger chunks,like movies, tv shows, etc. We can also partition the video accodingto the content, for example we might want to select a segment of videoin which a particular actor appears. </p><p>Mpeg_browse provides an interface for browsing video. User can playvideo, stop at arbitrary point, fast forward. What is the advantage ofMPEG Browse over other video players? MPEG Browse adds a very limited,yet useful structure to the video: it partitions the video intoshots. Based on these information, the browser can skip to the nextshot, much like a CD player can skip to the next song. The scenebreak algorithm was developed by Ramin Zabih, Justin Miller, and KavinMai. For more details about the algorithm see .....href......</p><p>Mpeg_browse works in two modes: preprocessing andbrowsing. Preprocessing is necessary for two reasons: the algorithmfor detecting scene breaks doesn't run in real time, and the decoderis not fast enough (which means that in order to skip to some place inthe movie, the user would have to wait about as long as it would taketo play the sequence). Preprocessing is madatory, since theinformation generated is essential to the work of browser. Thepreprocessing has to be done only once: the information for each mpegfile is saved on the disk, in file <i>filename</i>.inf, where the<i>filename</i> is the name of the mpeg. </p><p> In addition to video browsing mpeg_browse supports a wide variety ofoptions, both command line and menu. Most options have no effect afterthe start of the video, but future releases will allow change ofmany options (like dithering, frame rate, or skiping frames) atarbitrary times.</p><p>Mpeg_browse runs on Linux, SunOS, Solaris, and probably any machineother which has wish and can compile Berkeley mpeg_play.</p><Center> <h4> Visitors </h4> <img src="count.cgi"></center><p><A href="mpeg_browse.tar.gz">Download distribution of MPEG Browse</A></p><p>Send comments and suggestions to <ahref="mailto:szewczyk@cs.cornell.edu"> Robert Szewczyk(szewczyk@cs.cornell.edu)</a> </P>⌨️ 快捷键说明
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