利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.022 秒)

    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
    2.
    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。

    Video coding method and apparatus that predicts macroblock code length
    5.
    发明授权
    Video coding method and apparatus that predicts macroblock code length 失效
    预测宏块码长度的视频编码方法和装置

    公开(公告)号：US06795503B2

    公开(公告)日：2004-09-21

    申请号：US09799512

    申请日：2001-03-07

    申请人： Takashi Nakao ,  Yoshiko Hatano ,  Junko Kijima ,  Kazuhiro Sugiyama

    发明人： Takashi Nakao ,  Yoshiko Hatano ,  Junko Kijima ,  Kazuhiro Sugiyama

    IPC分类号： H04N712

    CPC分类号： H04N19/188 ,  H04N19/152 ,  H04N19/176 ,  H04N19/194 ,  H04N19/61

    摘要： As the video signals of macroblocks are coded, they are stored in a buffer. When the total code length of the stored macroblocks exceeds a predetermined value, all but the most recently coded macroblock are output from the buffer as a video packet, and the most recently coded macroblock is coded again. To minimize this occurrence, when each coded macroblock is stored, the code length of the next macroblock is predicted and added to the total length, and if the resulting sum exceeds the predetermined value, all of the coded macroblocks stored in the buffer are output as a video packet.

    摘要翻译： 当宏块的视频信号被编码时，它们被存储在缓冲器中。 当所存储的宏块的总代码长度超过预定值时，除最近编码的宏块之外的所有宏都作为视频分组从缓冲器输出，并且最近编码的宏块再次被编码。 为了最小化这种情况，当存储每个编码宏块时，预测下一个宏块的代码长度并将其相加到总长度，并且如果所得到的和超过预定值，则将存储在缓冲器中的所有编码宏块输出为 一个视频包。

    Imaging device
    6.
    发明授权
    Imaging device 失效
    成像设备

    公开(公告)号：US06816156B2

    公开(公告)日：2004-11-09

    申请号：US10103703

    申请日：2002-03-25

    申请人： Junji Sukeno ,  Takashi Nakao ,  Kazuhiro Sugiyama ,  Junko Kijima

    发明人： Junji Sukeno ,  Takashi Nakao ,  Kazuhiro Sugiyama ,  Junko Kijima

    IPC分类号： G09G500

    CPC分类号： H04N5/2251 ,  G09G5/10 ,  G09G2320/0673 ,  H04N5/2259 ,  H04N5/23293 ,  H04N5/2351 ,  H04N5/2621 ,  H04N2007/145

    摘要： The imaging device according to the present invention adjusts the luminance in the first image such that the addition value of the value, which is obtained by multiplying the feature quantity of the luminance in the central portion of the first image by the first coefficient, and the feature quantity of the luminance in the peripheral portion of the first image becomes the first target value, and also adjusts the luminance in the second image such that the addition value of the value, which is obtained by multiplying the feature quantity of the luminance in the central portion of the second image by the second coefficient that is set independently of the first coefficient, and the feature quantity of the luminance in the peripheral portion of the second image becomes the second target value.

    摘要翻译： 根据本发明的成像装置调整第一图像中的亮度，使得通过将第一图像的中心部分中的亮度的特征量乘以第一系数而获得的值的相加值和 第一图像的周边部分的亮度的特征量成为第一目标值，并且还调整第二图像中的亮度，使得通过将亮度的特征量乘以 第二图像的中心部分与独立于第一系数设置的第二系数相关联，并且第二图像的周边部分中的亮度的特征量变为第二目标值。

    Motion adaptive luminance signal/chrominance signal separation filter
    7.
    发明授权
    Motion adaptive luminance signal/chrominance signal separation filter 失效
    运动自适应亮度信号/色度信号分离滤波器

    公开(公告)号：US5500686A

    公开(公告)日：1996-03-19

    申请号：US255797

    申请日：1994-06-07

    申请人： Noriyuki Yamaguchi ,  Takuji Kurashita ,  Mitsuru Ishizuka ,  Junko Kijima ,  Masaharu Yao

    发明人： Noriyuki Yamaguchi ,  Takuji Kurashita ,  Mitsuru Ishizuka ,  Junko Kijima ,  Masaharu Yao

    IPC分类号： H04N9/12 ,  H04N9/78

    CPC分类号： H04N9/78

    摘要： A filter for motion adaptive Y/C separation, which is capable of obtaining image of high resolution and little picture quality degradation in the case where an image is switched from static one to motion one or vice-versa, is provided with a filter for extracting Y signal outputting Y signal and a filter for extracting C signal outputting C signal, by detecting whether image is motion one or static one by a motion detecting unit, and when motion image is detected, by detecting partially interframe correlation or correlation in three fields, and according to the detection result, by adaptively switching a plurality of processings for extracting intraframe Y signal and a plurality of processings for extracting intraframe C signal.

    摘要翻译： 一种用于运动自适应Y / C分离的滤波器，其提供了一种用于提取的滤波器，该滤波器能够在图像从静态切换到运动自适应Y / C分离的情况下获得高分辨率和小图像质量劣化的图像 Y信号输出Y信号和滤波器，用于提取C信号输出C信号，通过检测图像是运动检测单元是运动图像还是静态图像，并且当检测到运动图像时，通过检测三个场中的部分帧间相关性或相关性， 并且根据检测结果，通过自适应地切换用于提取帧内Y信号的多个处理和用于提取帧内C信号的多个处理。

    Chrominance-luminance separation method and filter performing selective spatial filter based on detected spatial correlation
    8.
    发明授权
    Chrominance-luminance separation method and filter performing selective spatial filter based on detected spatial correlation 失效
    色度 - 亮度分离方法和滤波器基于检测到的空间相关性执行选择性空间滤波

    公开(公告)号：US5502509A

    公开(公告)日：1996-03-26

    申请号：US263198

    申请日：1994-06-21

    申请人： Takuji Kurashita ,  Noriyuki Yamaguchi ,  Mitsuru Ishizuka ,  Junko Kijima ,  Hitoshi Hasegawa ,  Masaharu Yao

    发明人： Takuji Kurashita ,  Noriyuki Yamaguchi ,  Mitsuru Ishizuka ,  Junko Kijima ,  Hitoshi Hasegawa ,  Masaharu Yao

    IPC分类号： H04N9/78

    CPC分类号： H04N9/78

    摘要： Motion-adaptive chrominance-luminance separation of a composite video signal is accomplished by comb-filtering the video signal on the time axis, bandpass-filtering the video signal on at least one spatial axis selected according to spatial correlation detected in the video signal, and combining the two filtered results in proportion to motion detected in the video signal. Motion is detected in part by obtaining a one-frame difference signal that has been filtered to eliminate chrominance information; here too the filtering is performed on at least one spatial axis selected according to spatial correlation. Selecting the spatial filtering axes according to spatial correlation enables chrominance and luminance to be separated effectively without unnecessary information loss.

    摘要翻译： 复合视频信号的运动自适应色度 - 亮度分离是通过对时间轴上的视频信号进行梳状滤波来对在视频信号中检测到的空间相关性所选择的至少一个空间轴上的视频信号进行带通滤波来实现的，以及 将两个滤波结果与视频信号中检测到的运动成比例地组合。 通过获得已被滤波以消除色度信息的一帧差分信号，部分地检测运动; 这里也根据空间相关性选择的至少一个空间轴进行滤波。 根据空间相关性选择空间滤波轴可以实现色度和亮度的有效分离，无需不必要的信息丢失。