For a given monochrome digital image with low detail, an adaptive DCT data compression method is given and compared with adaptive DPCM method.

对于给定的细节较少的单色数字图象，本文给出了一种自适应的离散余弦变换(DCT)数据压缩方法。

youdao

The digital image compression technology, the key technology in the multimedia applications, the international standards and chips about compression are illustrated in this paper.

阐述了多媒体应用中的关键技术——数字图像压缩技术，及有关压缩的国际标准和芯片。

youdao

The idea of sending multiple programs within the 19.39-Mbps stream is unique to digital TV and is made possible by the digital compression system being used.

利用19.39MHz的带宽传输多路节目的想法建立在数字压缩技术的基础上。

youdao

At the same time, advances in technology--better filters and digital compression--are allowing carriers to squeeze far more data onto each frequency.

FORBES: FCC could bring on too much air

The costs of starting new television channels are falling, and will drop faster as digital compression packs more into the same transmission capacity.

ECONOMIST: The comfort of strangers

Digital compression typically allows between eight and 12 channels to occupy the same capacity required by a single analogue channel.

ECONOMIST: A world view | The