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本文提出了用原摄影片素材制作视频母版的新方法 ,其基础是一台具有数字输出方式的高通量影片扫描器 ,它能够生成高解像率的数字拷贝。由标准计算机平台与专用处理硬件结合而成的综合系统能够根据一个数字拷贝派生出不同格式的多种视频母版拷贝。用这种方法制作多种格式的视频节目既方便效率又高 ,它促进了原摄影片素材的多媒体发行。文章还介绍了数字化影片控制的基本设计和结构 ,特别是关键部件的结构 :后期处理单元 ;讨论了速率高达 4 2 0 Mb/秒连续数据流处理中的特别难点 ,并以飞利浦数字视频系统的实用影片扫描器为例进行了图示说明
This article presents a new method for producing video masters from original photographic material based on a high-throughput video scanner with digital output that produces high-resolution digital copies. A comprehensive system of standard computer platforms combined with dedicated processing hardware derives multiple video master copies of different formats based on a digital copy. Producing video in multiple formats in this way is convenient and efficient, and it facilitates the multimedia distribution of the original footage. The article also introduces the basic design and structure of digital video control, especially the structure of key components: the post-processing unit; discusses the special difficulties in continuous data stream processing up to 4 2 0 Mb / s, and with Philips digital video system An example of a practical video scanner is illustrated