Digital images, compression, decompression and your system

Proceedings of WESCON '94 Pub Date : 1994-09-27 DOI:10.1109/WESCON.1994.403616

C.A. Maxwell, R. Jayavant

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引用次数: 1

Abstract

The dream system can playback whatever you ask of it and is inexpensive. The dream system plays back high resolution at full color and full speed. The simple answer to the problem of image transport, playback, recording and storage is digital compression/decompression, but that's where the simplicity ends. Digital images are the target of playback, but come at a price. The limitations of digital images are the bandwidth to transport, compress, capacity to store, decompress and bandwidth to playback and record. Standard systems can do some of the compression/decompression with standard components. First, there are the graphics subsystem, storage, software, firmware and the main CPU. Each of these components has limitations based upon bandwidth. Second, there's software decompression which provides the most flexible method for playback at a reasonable cost. The limitations of software decompression are also seen in bandwidth analysis. Software compression is harder than decompression and can require great amounts of patience. So what's the solution to these limitations? The solution for some users is image compression while others need decompression. Deciding when you need a video codec is difficult. The right digital image processing method should become clear as one type of compression and decompression find their way on enough systems to form a critical mass.<>

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数字图像，压缩，解压和您的系统

梦境系统可以回放你要求的任何东西，而且价格低廉。dream系统以全彩色和全速播放高分辨率。对于图像传输、回放、记录和存储的问题，最简单的答案是数字压缩/解压缩，但简单到此为止。数字图像是播放的目标，但代价是高昂的。数字图像的限制是传输、压缩的带宽、存储、解压缩的容量以及回放和记录的带宽。标准系统可以使用标准组件进行一些压缩/解压缩。首先是图形子系统、存储器、软件、固件和主CPU。每个组件都有基于带宽的限制。其次，有软件解压，它以合理的成本提供了最灵活的播放方法。软件解压缩的局限性也体现在带宽分析中。软件压缩比解压缩更难，需要很大的耐心。那么如何解决这些限制呢?一些用户的解决方案是图像压缩，而另一些用户则需要解压缩。决定何时需要视频编解码器是很困难的。正确的数字图像处理方法应该变得清晰，因为一种类型的压缩和解压在足够多的系统上找到了自己的方式，形成了一个临界质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of WESCON '94

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