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数字电视机问世以来,传统的录像机也面临着更新换代。在这种形势下,一种家用数字录像格式D-VHS在原来主流录像格式VHS的基础上就产生了。基于D-VHS录像格式的数字录像机在美国、日本等国家已上市。本文将简介D-VHS录像格式。 现有的数字式录像机格式有两大类,一类是非压缩的数字录像机,质量很高,但由于码率太高,所以价格高昂,难以普及。另一类是采用M-JPEG,可以实现逐帧编辑。索尼公司录像格式BETACAM-SX采用GOP为2的MPEG2压缩格式,但码率仍然比较高,且
Since the advent of digital television, traditional video recorders are also facing renewal. Under such circumstances, a home digital video format D-VHS was created on the basis of the original mainstream video format VHS. Digital video recorders based on the D-VHS recording format are available in the United States, Japan and other countries. This article will introduce D-VHS video format. The existing digital video recorder format has two categories, one is non-compressed digital video recorder, high quality, but because the bit rate is too high, so expensive, it is difficult to universal. The other is the use of M-JPEG, you can achieve frame-by-frame editing. Sony’s video format BETACAM-SX uses GOP 2 MPEG2 compression format, but the bit rate is still relatively high, and