Image control apparatus
    1.
    发明授权
    Image control apparatus 有权
    图像控制装置

    公开(公告)号:US06914937B2

    公开(公告)日:2005-07-05

    申请号:US09812789

    申请日:2001-03-15

    申请人: Yuuji Takenaka

    发明人: Yuuji Takenaka

    摘要: An image control apparatus is capable of coding an image signal with increased efficiency for improved image quality. The image control apparatus has a comparison processing unit for carrying out at least one of a first comparison process to compare a motion vector with a threshold, a second comparison process to compare a motion-compensated predictive error with a threshold, and a third comparison process to compare a difference value produced by subtracting the motion-compensated predictive error from an interframe difference with a threshold, and a repetitive number control unit for adaptively controlling the number of repeated B pictures to be inserted into a stream based on the compared result of the comparison process which is carried out by the comparison processing unit.

    摘要翻译: 图像控制装置能够以更高的效率对图像信号进行编码以提高图像质量。 图像控制装置具有比较处理单元,用于执行将运动矢量与阈值进行比较的第一比较处理,将运动补偿预测误差与阈值进行比较的第二比较处理,以及第三比较处理 比较通过从帧间差减去运动补偿预测误差与阈值产生的差值,以及重复数控制单元,用于根据比较结果自适应地控制要插入到流中的重复B图像的数量 由比较处理单元执行的比较处理。

    Apparatus and method for converting between different video formats
    2.
    发明授权
    Apparatus and method for converting between different video formats 失效
    用于在不同视频格式之间进行转换的装置和方法

    公开(公告)号:US06778221B1

    公开(公告)日:2004-08-17

    申请号:US09328371

    申请日:1999-06-09

    IPC分类号: H04N701

    摘要: A method and apparatus for converting between different video formats, which provide smooth video motion by eliminating unnatural effects which could be introduced in the process of video format conversion. A frame interpolator produces interpolated frames from a first video signal given in a first video format by using motion vectors of the first video signal. From the interpolated frames, a video signal generator produces a second video signal in a second video format that is incompatible with the first video format.

    摘要翻译: 一种用于在不同视频格式之间进行转换的方法和装置,其通过消除可能在视频格式转换过程中引入的不自然的影响来提供平滑的视频运动。 帧内插器通过使用第一视频信号的运动矢量从以第一视频格式给出的第一视频信号产生内插帧。 从内插帧中,视频信号发生器产生与第一视频格式不兼容的第二视频格式的第二视频信号。

    Differential coding apparatus having an optimum predicted value
determining circuit
    3.
    发明授权
    Differential coding apparatus having an optimum predicted value determining circuit 失效
    差分编码装置具有最佳预测值确定电路

    公开(公告)号:US4743967A

    公开(公告)日:1988-05-10

    申请号:US25671

    申请日:1987-03-13

    IPC分类号: G01B5/008 H04N7/36 H04N7/137

    CPC分类号: H04N19/503

    摘要: A differential coding apparatus having a plurality of predictive function computing circuits and an optimum predicted value determining circuit. The optimum predicted value determining circuit determines the optimum predicted value from the plurality of predicted values by using a quantized prediction error used as an output signal of the apparatus, instead of a local decoded signal, and carries out the determining operation of the optimum predicted value in parallel with the quantized prediction error producing operation.

    摘要翻译: 一种具有多个预测函数计算电路和最佳预测值确定电路的差分编码装置。 最佳预测值确定电路通过使用用作装置的输出信号的量化预测误差来代替本地解码信号,从多个预测值确定最佳预测值,并执行最佳预测值的确定操作 与量化的预测误差产生操作并行。