发明名称 |
VIDEO SIGNAL PROCESSING METHOD AND DEVICE |
摘要 |
To enable a satisfactory suppression of overemphasized component after converting the number of scanning lines of video signal, when the video signal is converted in the number of scanning lines and a high-frequency component at least in a vertical direction of the converted video signal is emphasized, signals delayed by a plurality of stages of time equal to or more than a time required for converting the number of scanning lines are obtained by a delay circuit 18, and an appropriate delay signal is selected from among the plurality of delay signals by a selection circuit 19. The selected delay signal is compared with the emphasized video signal in emphasized-component detector circuits 16a, 16b and the overemphasized component is detected. Processing to suppress the emphasis is performed by suppressor circuits 13a, 13b with respect to a portion where the overemphasized signal component is detected. <IMAGE> |
申请公布号 |
EP1530365(A1) |
申请公布日期 |
2005.05.11 |
申请号 |
EP20030788128 |
申请日期 |
2003.08.15 |
申请人 |
SONY CORPORATION |
发明人 |
IMAI, SEIKO;SARUGAKU, TOSHIO;KANEKO, NAOKI;HOSHINO, TAKAYA |
分类号 |
H04N5/20;H04N5/208;H04N7/01 |
主分类号 |
H04N5/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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