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    • 9. 发明授权
    • Multiple picture composing method and multiple picture composing apparatus
    • 多幅图像合成方法和多幅图像合成装置
    • US06456335B1
    • 2002-09-24
    • US09167432
    • 1998-10-06
    • Tsuyoshi MiuraYuichi Terui
    • Tsuyoshi MiuraYuichi Terui
    • H04N718
    • H04N7/181H04N5/2624
    • A multiple picture composing method for composing video signals from a plurality of video signal sources which operate asynchronously to each other includes the steps of (a) successively selecting the video signals from the video signal sources, (b) reading the selected video signals in units of frames while maintaining horizontal and vertical synchronization of the selected video signals, (c) reducing the video signals in the units of frames in correspondence with areas allocated for each of pictures to be composed in a composed picture, (d) writing the reduced video signal in blocks of a picture composing memory corresponding to the areas allocated for each of the pictures to be composed, and (e) composing the video signals stored in the picture composing memory to obtain a composed video signal related to a composed picture and subjecting the composed video signal to at least one of an encoding process and a transmission process.
    • 用于组合来自彼此异步操作的多个视频信号源的视频信号的多画面组合方法包括以下步骤:(a)从视频信号源连续选择视频信号,(b)以单位读取所选择的视频信号 同时保持所选择的视频信号的水平和垂直同步,(c)对应于要在合成图像中组成的每个图像分配的区域,以帧为单位减少视频信号,(d)写入缩小视频 信号以与组成的每个图像分配的区域相对应的图像的构成存储器的块中的信息,以及(e)组合存储在图像构成存储器中的视频信号,以获得与组合图像相关的合成视频信号, 构成视频信号至编码处理和发送处理中的至少一个。
    • 10. 发明授权
    • Still image encoder
    • 静态图像编码器
    • US5966466A
    • 1999-10-12
    • US936315
    • 1997-09-24
    • Tsuyoshi Miura
    • Tsuyoshi Miura
    • G06T9/00H04N7/15H04N19/00H04N19/105H04N19/117H04N19/137H04N19/176H04N19/186H04N19/196H04N19/423H04N19/51H04N19/85G06K9/00
    • H04N19/112
    • According to the still image encoder, as to frame data inputted from the digital video camera, odd field data is held in the odd field memory and even field data is held in the even field memory. The control section divides odd field data and even field data into predetermined blocks, calculates the absolute value total of differences between each pixel data in odd field data and each pixel data in even field data, and compares the total with the predetermined threshold. The DMA controller transfers pixel data of the block in the odd field data to the even field memory when the total is larger than the threshold. The control section codes frame data consisting of odd field data and even field data into JPEG data.
    • 根据静止图像编码器,对于从数字摄像机输入的帧数据,奇数场数据被保持在奇数场存储器中,偶数场数据被保持在偶数场存储器中。 控制部将奇数场数据和偶数场数据分割为预定块,计算奇数场数据中的每个像素数据与偶数场数据中的每个像素数据之间的差的绝对值的总和,并将总数与预定阈值进行比较。 当总数大于阈值时,DMA控制器将奇数场数据中的块的像素数据传送到偶数场存储器。 控制部分将由奇数场数据和偶数场数据组成的帧数据编码成JPEG数据。