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    Image compression of selected regions based on transmission bit rate, motion, and/or region information, and bit selection before compression based on transmission bit rate
    3.
    发明授权
    Image compression of selected regions based on transmission bit rate, motion, and/or region information, and bit selection before compression based on transmission bit rate 失效
    基于传输比特率，运动和/或区域信息的所选区域的图像压缩，以及基于传输比特率的压缩之前的比特选择

    公开(公告)号：US06922490B2

    公开(公告)日：2005-07-26

    申请号：US09816324

    申请日：2001-03-26

    申请人： Tomoaki Ikeda ,  Mamoru Inamura ,  Junko Kijima ,  Yoshiko Hatano ,  Kazuhiro Sugiyama

    发明人： Tomoaki Ikeda ,  Mamoru Inamura ,  Junko Kijima ,  Yoshiko Hatano ,  Kazuhiro Sugiyama

    IPC分类号： H04N19/50 ,  G06T9/00 ,  H03M7/36 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/51 ,  H04N19/625 ,  H04N19/91 ,  G06K9/36

    CPC分类号： H04N19/20 ,  H04N19/139 ,  H04N19/164 ,  H04N19/17 ,  H04N19/46 ,  H04N19/61

    摘要： An image encoding device is provided that can transmit encoded image data without lowering the frame rate even when the transmission speed of the transmission path is lowered. An encoded region designator selects the region that is to be encoded, in the input image, depending on the bit rate of the transmission path. Only such a region that is designated by the encoded region designator is encoded. The encoded region designator may be one which selects the region that is to be encoded, according to the bit rate of the transmission path, and the motion vector detected by the image encoding circuit. As an alternative, an encoded region designator may be used which selects the region that is to be encoded according to the bit rate of the transmission path, and the information on the designated region supplied from the outside. Also, a selector limiting the number of bits of the signal from the image signal input circuit may be provided, and when the bit rate of the transmission path is lowered, the number of bits of the input image may be adaptively switched.

    摘要翻译： 提供了即使当传输路径的传输速度降低时也可以传输编码图像数据而不降低帧速率的图像编码装置。 编码区域指示符根据传输路径的比特率在输入图像中选择要被编码的区域。 只有由编码区域指示符指定的这样的区域被编码。 编码区域指示符可以是根据传输路径的比特率和由图像编码电路检测到的运动矢量来选择要被编码的区域的区域。 作为替代，可以使用编码区域指示符，其根据传输路径的比特率以及从外部提供的指定区域上的信息来选择要被编码的区域。 此外，可以提供限制来自图像信号输入电路的信号的位数的选择器，并且当传输路径的比特率降低时，可以自适应地切换输入图像的比特数。

    Image processing system
    6.
    发明授权
    Image processing system 失效
    图像处理系统

    公开(公告)号：US5550936A

    公开(公告)日：1996-08-27

    申请号：US238946

    申请日：1994-05-06

    申请人： Jun Someya ,  Kazuhiro Chiba ,  Kazuyoshi Watabu ,  Yoshie Yamamoto ,  Mamoru Inamura ,  Takeshi Nagayama ,  Noriko Bamba ,  Noboru Sunada

    发明人： Jun Someya ,  Kazuhiro Chiba ,  Kazuyoshi Watabu ,  Yoshie Yamamoto ,  Mamoru Inamura ,  Takeshi Nagayama ,  Noriko Bamba ,  Noboru Sunada

    IPC分类号： G06T3/40 ,  G06T5/00 ,  G06T5/20 ,  H04N1/409 ,  H04N5/208 ,  H04N5/21 ,  H04N5/367 ,  H04N9/04 ,  G06K9/00

    CPC分类号： G06T3/4007 ,  G06T5/004 ,  G06T5/20 ,  H04N1/409 ,  H04N5/208 ,  H04N5/21 ,  H04N5/367 ,  H04N9/045 ,  H04N2209/041 ,  H04N2209/046 ,  H04N9/88

    摘要： In an image processing system, an outline correction of image data and a smoothing for noise removal are performed. Generally, the outline correction is performed by emphasizing a high frequency component, and the smoothing is performed by removing the high frequency component. Within one image data, by properly switching the emphasizing and the removal of the high frequency component, while the outline correction is carried out, the noise removal can be performed. An absolute value of a high frequency component Fa extracted from the image data Pi by a first differential filter is compared with a discrimination threshold value K, and depending on the comparison result, either Fa or -Fa as the correction data Fo is selected by a selector and is added to the image data Pi. As a result, when Fo=Fa, the high frequency component is emphasized, and when Fo=-Fa, smoothing is performed. A pixel interpolation and a multi picture formation are also disclosed.

    摘要翻译： 在图像处理系统中，执行图像数据的轮廓校正和噪声去除的平滑处理。 通常，通过强调高频分量来执行轮廓校正，并且通过去除高频分量来执行平滑。 在一个图像数据内，通过适当地切换高频分量的强调和去除，在执行轮廓校正的同时，可以执行噪声去除。 将通过第一差分滤波器从图像数据Pi提取的高频分量Fa的绝对值与鉴别阈值K进行比较，并且根据比较结果，作为校正数据Fo的Fa或-Fa被选择为 选择器，并被添加到图像数据Pi。 结果，当Fo = Fa时，强调高频分量，并且当Fo = -Fa时，进行平滑处理。 还公开了像素内插和多图像形成。