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SUPPRESSION OF LUMINANCE SIGNAL CONTAMINATION OF CHROMINANCE SIGNALS IN A VIDEO SIGNAL PROCESSING SYSTEM

机译:视频信号处理系统中色度信号的亮度信号污染的抑制

摘要

RCA 72,017SUPPRESSION OF LUMINANCE SIGNALCONTAMINATION OF CHROMINANCE SIGNALSIN A VIDEO SIGNAL PROCESSING SYSTEMAbstract of the DisclosureApparatus in a video signal processing system forimproving the quality of a reproduced color image byreducing visible "cross-color" interference caused whenhigh frequency luminance signals occur within the passbandof the chrominance component of the video signal. Videosignals within the chrominance passband are sensed by asignal multiplier responsive to the video signal and to thevideo signal delayed by a given amount. The amount ofdelay corresponds to an interval during which rapid lumi-nance transitions capable of producing the high frequencysignals within the chrominance passband can occur. Themultiplier generates a control signal indicative of thepresence of the luminance transitions, which is thenutilized for controlling the chrominance signal processingchannel such that objectionable cross-color effectsotherwise visible in a reproduced image are reduced oreliminated.
机译:RCA 72,017抑制发光信号色度信号污染在视频信号处理系统中披露摘要视频信号处理系统中的设备通过以下方式改善彩色图像的再现质量减少可见的“跨色”干扰通带内出现高频亮度信号视频信号的色度分量。视频色度通带内的信号由信号乘法器,响应视频信号和视频信号延迟了给定的数量。大量的延迟对应于快速发光的间隔能够产生高频的南斯跃迁可能会在色度通带内发生信号。的乘法器产生指示信号的控制信号亮度过渡的存在,然后用于控制色度信号处理产生令人反感的跨色效果的通道否则在复制的图像中可见的图像会减少或被淘汰。

著录项

  • 公开/公告号CA1115412A

    专利类型

  • 公开/公告日1981-12-29

    原文格式PDF

  • 申请/专利权人 RCA CORPORATION;

    申请/专利号CA19780317439

  • 发明设计人 HOLMES DAVID D.;

    申请日1978-12-05

  • 分类号H04N9/535;

  • 国家 CA

  • 入库时间 2022-08-22 13:18:08

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