The compression of this kind of type sees the signal the data of same alike usage to measure to describe to see the signal , but regardless its complexity 这种类型的压缩视频信号使用相同的数据量来描述视频信号,而不管其复杂性。
The transcoding of compressed video stream is to transcode a compressed video stream from one format or standard to another 压缩视频流转码,就是将一种标准和格式的压缩视频流处理成更适应于某特定应用的另一种标准和格式的压缩视频流。
Moreover , video clipping and merging in mpeg compressed domain is implemented , which will largely exploit network - based applications of cbvar 进而,设计并实现了mpeg压缩视频裁剪与拼接功能,大大拓宽了视频检索在网络化方面的应用。
So the chapter introduces the compressed domain transcoding technologies , including dct - domain image down - conversion ( i n case of the simple conversion ratio ) , dct - domain motion - compensation and inverse motion - compensation 针对第二类转码,本文第三章主要研究mpeg - 2到mpeg - 4压缩视频流转码。
In this paper , three method are proposed . the two among them are that the higher information transmission data rate will be given in the increasement of the signal transmitted power , and another is got through the compression of video signal data rate 论文提出了三种方法,即两种通过信号功率增加使信息传输速率提高的方法和一种压缩视频带宽提高数据传输速率的方法。