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Units of Video Compression

机译:视频压缩单位

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摘要

Video compression was widely adopted for bandwidth saving reasons in Internet and in digital TV. Although advanced compression methodologies were exceedingly desirable for much higher compression ratios and much better quality of a streaming video, the standard compression methods remained nevertheless at the level of JPEG2000 for single frames of images using DCT & wavelets, and MPEG using DCT and exhaustive pixel correlations for the optical flow compression for the video. However, with the recent advent of sophisticated sensory technologies for NASA space missions, both the frame rate and the resolution of video streams become soon beyond the traditional capability of those DCT based compression methods. The goal was to find fundamental units of video that could be applied to the ultra-high frame rates of video streams. In this paper a novel implementation of video compression was based on the singularity maps in both space and time for the first time.
机译:出于节省带宽的原因,视频压缩在Internet和数字电视中被广泛采用。尽管对于更高的压缩率和更好的流式视频质量,非常需要先进的压缩方法,但是对于使用DCT和小波的单帧图像以及使用DCT和穷举像素相关的MPEG,标准压缩方法仍然保持在JPEG2000级别。用于视频的光流压缩。但是,随着最近用于NASA太空任务的先进传感技术的出现,视频流的帧速率和分辨率很快就超出了那些基于DCT的压缩方法的传统能力。目的是找到可以应用于视频流超高帧率的视频基本单位。在本文中,视频压缩的一种新颖实现是首次基于空间和时间上的奇点图。

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