Picture signal recording device having adaptive processing circuit for
adding color signal and sub-sampled color signal in response to motion
signal
    1.
    发明授权
    Picture signal recording device having adaptive processing circuit for adding color signal and sub-sampled color signal in response to motion signal 失效
    具有自适应处理电路的图像信号记录装置,用于响应运动信号增加彩色信号和次采样的彩色信号

    公开(公告)号:US5523850A

    公开(公告)日:1996-06-04

    申请号:US174462

    申请日:1993-12-28

    摘要: A picture signal recording device for recording color video signals having a color signal detection circuit detects the quantity of motion of chroma signals from an inter-frame difference between a color difference signal from a chroma recording processing circuit and a signal delayed by one frame from the color difference signal. A dynamic change smoothing filter circuit smoothes sudden changes in the quantity of motion of the chroma signal. A luminance signal motion detection circuit detects the quantity of motion of chroma signals from an inter-field difference between a luminance signal from a luminance recording processing circuit and a signal delayed by one field from the luminance signal. A maximum value detection circuit detects the maximum value of the quantity of motion of the chroma signal and the quantity of motion of the luminance signal. An adaptive processing circuit controls the quantity of transmission of the sub-Nyquist sampled color signal depending on the maximum value. Thus the sub-sampled color signal sub-sampled responsive to the motion of the picture is transmitted, while motion detection may be made without necessitating a memory exclusively used for motion detection.

    摘要翻译: 用于记录具有彩色信号检测电路的彩色视频信号的图像信号记录装置从色度记录处理电路的色差信号与延迟了一帧的信号之间的帧间差检测色度信号的运动量 色差信号。 动态变化平滑滤波器电路平滑色度信号的运动量的突然变化。 亮度信号运动检测电路根据来自亮度记录处理电路的亮度信号与从亮度信号延迟一个场的信号之间的场间差检测色度信号的运动量。 最大值检测电路检测色度信号的运动量和亮度信号的运动量的最大值。 自适应处理电路根据最大值控制子奈奎斯特采样色信号的发送量。 因此,响应于图像的运动被子采样的次采样的颜色信号被发送,而可以进行运动检测而不需要专门用于运动检测的存储器。

    Imaging apparatus
    3.
    发明授权
    Imaging apparatus 失效
    成像设备

    公开(公告)号:US5929905A

    公开(公告)日:1999-07-27

    申请号:US810246

    申请日:1997-03-03

    CPC分类号: H04N5/335 H04N9/045

    摘要: An imaging signal obtained from CCD is supplied to the pre-processing circuit to form the pre-processing signal consisting of a luminance signal and a color signal and the pre-processing signal is supplied in turn to the post-processing circuit to form the post-processing signal to be outputted to the external circuit or to be recorded. The circuits from CCD to pre-processing circuit are driven by the first clock CKH or the second clock which is slower than the first clock, while the post-processing circuit is driven by the first clock. A clock exchange circuit is provided between the pre-processing circuit and the post-processing circuit, and when the circuits up to the pre-processing circuit are driven by the second clock, the clock exchange circuit is operated to supply the pre-processing signal exchanged to the first clock from the second clock is supplied to the post-processing circuit. Thereby, the post-processing circuit can used in common.

    摘要翻译: 从CCD获得的成像信号被提供给预处理电路以形成由亮度信号和颜色信号组成的预处理信号,并且将预处理信号依次提供给后处理电路以形成柱 处理信号输出到外部电路或被记录。 从CCD到预处理电路的电路由第一时钟CKH或比第一时钟慢的第二时钟驱动,而后处理电路由第一时钟驱动。 在预处理电路和后处理电路之间提供时钟交换电路,并且当直到预处理电路的电路被第二时钟驱动时,时钟交换电路被操作以提供预处理信号 从第二时钟交换到第一时钟被提供给后处理电路。 因此,后处理电路可以共同使用。