The second chapter contains the principle and key asic implementation of data transformer of dvb - c system 第二章叙述数据格式变换,阐述其关键部分的asic实现。
In this paper , we introduce the design of the video post processing which comprise the on screen display and video format conversion 本文详细介绍了包括屏幕显示单元及视频格式变换单元的视频后处理单元设计思想和设计过程。
There is two questions on transferring the video signals from the output of the hdtv decode to display on the screen , one is that we should convert the video data into many different video formats which is named as format conversion function 经hdtv视频解码器解码后的视频信号在送去电视机显示前需要解决两个问题;一是对输入的视频格式可能做的视频格式转换(及yuv到rgb色度空间变换,称为格式变换单元。
Typical output horizontal formats are high definition 1920 pixels and standard definition 1280 pixels . the purpose of the horizontal format conversion is to allow up or down sampling of picture data in order to increase or decrease the number of horizontal samples in a line to allow the video output to match many different standards 水平格式变换的目的在于对视频数据进行上抽样或下抽样以增加或减少每行的像素数量,使视频输出符合不同的标准;垂直格式变换则是对视频图像的垂直分辨率上进行上抽样或下抽样。