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1. 发明授权

US4675733A Bandwidth compression system 失效
标题翻译：带宽压缩系统
公开(公告)号：US4675733A
公开(公告)日：1987-06-23
申请号：US708455
申请日：1985-03-05
申请人： Masayuki Tanimoto
发明人： Masayuki Tanimoto
IPC分类号： H04N7/12 , H04B14/00 , H04N7/015 , H04N11/04 , H04N7/18
CPC分类号： H04N7/0152
摘要： From a high definition television signal of a field are derived basic pixels whose number is a quarter of the whole number of pixels of an original image, motional areas in the image are detected by comparing the basic pixels in the relevant field with corresponding basic pixels in the preceding frame, pixels in the motional areas are selected as additional pixels together with information representing positions of additional pixels in the image, and the basic and additional pixels and the position information are transmitted in time division multiplex mode in such a manner that the basic and additional pixels can be separated from each other at a receiver end without the position information. At the receiver end, when the position information is detected correctly, an image is reconstructed by the received basic and additional pixels under the control of the received position information, whereas when the position information is not detected correctly, an image is reconstructed only from the received basic pixels.
摘要翻译：从场的高分辨率电视信号得到的基本像素的数目是原始图像的整个像素的四分之一的四分之一，通过将相关领域中的基本像素与对应的基本像素进行比较来检测图像中的运动区域在前一帧中，运动区域中的像素被选择为附加像素以及表示图像中的附加像素的位置的信息，并且基本和附加像素和位置信息以时分多路复用模式被发送，使得基本并且附加像素可以在接收器端彼此分离而没有位置信息。在接收端，当正确地检测到位置信息时，在接收到的位置信息的控制下，由接收到的基本和附加像素重建图像，而当位置信息未正确检测时，仅从接收基本像素。

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