| 摘要 |
<p>PURPOSE:To eliminate large periodic fluctuation in picture quality of a video image by allowing most parts of encode and decode sections to implement signal processing with a system clock corresponding to a frame frequency of 24Hz when a film video is encoded. CONSTITUTION:When a signal inputted to input terminals 1000, 1002 is a film video converted into a television signal at an encoder side, the periodic arrival of the same video is detected by film video detection circuits 1003, 1006, a frame or field frequency of an input video signal is converted into a substantial frame frequency of the film video by frame frequency conversion circuits 1002, 1005 to eliminate a redundant frame and then the picture is compressed and the compressed picture is sent. When the video signal processed in this way is received at a decoder side, the inverse elapsed picture to that at the encoder side is implemented to convert the signal into a television signal.</p> |
