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    Video coding device and video decoding device
    5.
    发明公开
    Video coding device and video decoding device 失效
    视频编码设备和视频解码设备

    公开(公告)号：EP0961497A2

    公开(公告)日：1999-12-01

    申请号：EP99202514.8

    申请日：1996-07-09

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Katata, Hiroyuki ,  Ito, Norio ,  Kusao, Hiroshi ,  Nomura, Toshio

    IPC分类号： H04N7/26

    CPC分类号： H04N19/577 ,  H04N19/107 ,  H04N19/17 ,  H04N19/20 ,  H04N19/30 ,  H04N19/37 ,  H04N19/53 ,  H04N19/61

    摘要： A video coding device comprising: lower-layer coding means for coding a video sequence at a lower frame rate; upper-layer coding means for coding one or more specified part-areas of the video sequence at a higher frame rate; and synthesizing means for synthesizing a video sequence of the upper-layer with a video sequence of the lower-layer by using part-area-information representing the specified part-area; characterized in that the synthesizing means generates a lower-layer frame for synthesizable frame in absence of the lower-layer frame corresponding to the temporal position of the synthesizable frame in order to fill the absence, by using the lower-layer frame existing temporally before the synthesizable frame and a second part-area-information of a lower-layer frame existing temporally after the synthesizable frame, and by using the lower-layer frame existing temporally after synthesizable frame for a portion of only the first part-area, and by using the lower-layer frame existing temporally before the synthesizable frame for a portion of only the second part-area.
    A corresponding decoding device is also provided.

    摘要翻译： 1.一种视频编码装置，其特征在于，具备：下位层编码单元，对视频序列以较低的帧速进行编码; 上层编码装置，用于以更高的帧速率对视频序列的一个或多个指定的部分区域进行编码; 以及合成装置，用于通过使用表示指定的部分区域的部分区域信息来合成上层的视频序列与下层的视频序列; 其特征在于，所述合成装置通过使用存在于所述可合成帧的时间位置之前的所述下层帧，在不存在与所述可合成帧的所述时间位置对应的所述下层帧的情况下生成用于合成帧的下层帧， 可合成帧和暂时存在于可合成帧之后的较低层帧的第二部分区域信息，并且通过将可合成帧之后暂时存在的较低层帧用于仅第一部分区域的一部分，以及通过使用 低层帧存在于可合成帧之前，仅存在第二部分区域的一部分。 还提供了相应的解码设备。

    Hierarchical video coding device and decoding device
    6.
    发明公开
    Hierarchical video coding device and decoding device 失效
    分层师Bildkodierer und -dekodierer

    公开(公告)号：EP0753970A2

    公开(公告)日：1997-01-15

    申请号：EP96305038.0

    申请日：1996-07-09

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Katata, Hiroyuki ,  Kusao, Hiroshi ,  Ito, Norio ,  Nomura, Toshio

    IPC分类号： H04N7/26

    CPC分类号： H04N19/577 ,  H04N19/107 ,  H04N19/17 ,  H04N19/20 ,  H04N19/30 ,  H04N19/37 ,  H04N19/53 ,  H04N19/61

    摘要： In a video coding device capable of making coded data have a hierarchical structure, a specified area of each frame is selected, the position and the shape of the selected area are encoded, a pixel value of the selected area is encoded as lower-layer coded data, a pixel value of a whole image is encoded as first upper-layer coded data by using pixel values of already decoded images of the lower-layer and the first upper layer and a pixel value of the selected area is encoded as second upper-layer coded data by using pixel values of already decoded images of the lower-layer and the second upper layer. By the video coding device and video decoding device mentioned above, decoding a part of coded data makes it possible to reproduce only a selected area of a lower image-quality or reproduce a whole image of a lower image-quality or reproduce a whole image with a selected area of a higher image-quality and other areas of a lower image- quality. In encoding and decoding a background video-sequence and a plurality of foreground part-video- sequences, a coding device (101, 102, 103, 122, 123, 120) encodes position information of part-video-sequences and a decoding device (105, 106, 107, 108, 109, 110, 124, 125, 121) prepares weight values necessary for weighted-mean image synthesizing on the basis of the coded data of the position information data, whereby each part-video-sequences is synthesized with the background video-sequence by using the weighted mean values. And in laying a plurality of part-video-sequences over a background video-sequence by using weighted mean values, an amount of coded data can be reduced because the weighted mean values are prepared from binarized information. Furthermore, a synthesized video-sequence has a smoothed boundary between the part images and the background image can be smoothly synthesized without any visual defect since the weighted mean data prepared from the binarized information gets a value of 0 to 1. In synthesizing an lower-layer frame from preceding and proceeding lower-layer frames by using a first part-area-information and a second part-area-information of lower-layer frames existing temporally before and after the synthesizable frame, the temporally preceding and proceeding lower-layer frames previously averaged with weight is used for synthesizing an overlapped portion of a first part-area with a second part-area or an area not belonging to the first part-area and the second part-area on the synthesizable frame, the temporally proceeding lower-layer frame used for synthesizing an area belonging to the first part-area only and the temporally preceding lower-layer frame is used for synthesizing an area belonging to the second part-area only. By the video coding device and video decoding device with the synthesizing method as above described, the synthesyzing image is free from the distortion occurred in the prior art image aforementioned.

    摘要翻译： 在能够使编码数据具有层次结构的视频编码装置中，选择每帧的指定区域，对所选择的区域的位置和形状进行编码，将所选择的区域的像素值编码为较低层编码 数据，通过使用下层和第一上层的已解码图像的像素值将整个图像的像素值编码为第一上层编码数据，并且所选区域的像素值被编码为第二上层编码数据， 通过使用下层和第二上层的已解码图像的像素值来进行层编码数据。 通过上述的视频编码装置和视频解码装置，对编码数据的一部分进行解码，能够只再生图像质量较差的选择区域，或者再生图像质量较差的整体图像， 具有较高图像质量的选定区域和较低图像质量的其他区域。 在编码和解码背景视频序列和多个前景部分视频序列时，编码装置（101,102,103,122,123,120）对部分视频序列的位置信息和解码装置（ 105,106,107,108,109,110,124,125,121）根据位置信息数据的编码数据准备加权平均图像合成所必需的权重值，由此合成各部分视频序列 与背景视频序列使用加权平均值。 并且通过使用加权平均值在背景视频序列上放置多个部分视频序列，可以减少编码数据的量，因为加权平均值由二值化信息准备。 此外，由于从二值化信息获得的加权平均数据的值为0到1，所以合成的视频序列具有部分图像之间的平滑边界，并且可以平滑地合成背景图像而没有任何视觉缺陷。 通过使用时间上在可合成帧之前和之后存在的下层帧的第一部分区域信息和第二部分区域信息，在时间上在前和进行中的下层帧 先前用权重进行平均化，用于合成具有第二部分区域或不属于可合成框架上的第一部分区域和第二部分区域的区域的第一部分区域的重叠部分， 用于合成属于第一部分区域的区域和时间上在前的下层帧的层帧用于合成属于s的区域 只有部分区域。 通过具有上述合成方法的视频编码装置和视频解码装置，合成图像没有上述现有技术图像中发生的失真。

    3-D image display device
    10.
    发明公开
    3-D image display device 有权
    Dreidimensionale Anzeigevorrichtung

    公开(公告)号：EP2315454A1

    公开(公告)日：2011-04-27

    申请号：EP10195256.2

    申请日：2003-09-26

    申请人： Sharp Kabushiki Kaisha

    发明人： Kitaura, Ryuji ,  Katata, Hiroyuki ,  Nomura, Toshio ,  Ito, Norio ,  Aono, Tomoko ,  Takahashi, Maki ,  Hasegawa, Shinya ,  Uchiumi, Tadashi ,  Ito, Motohiro ,  Tsujimoto, Masatoshi ,  Kusao, Hiroshi

    IPC分类号： H04N13/04 ,  H04N13/00 ,  G09G5/36 ,  G09G3/20 ,  G03B35/00

    CPC分类号： H04N19/597 ,  H04N13/122 ,  H04N13/144 ,  H04N13/178 ,  H04N13/189 ,  H04N13/194 ,  H04N13/359 ,  H04N2213/002

    摘要： Disclosed herein is a 3-D image display unit that can be controlled flexibly to protect the user from eyestrain and operated easily. The 3-D image display unit includes measuring means for measuring a display time of a 3-D image, parallax adjusting means for instructing 3-D image forming means to adjust the parallax of the 3-D image. In the case where the 3-D image display time measured by the measuring means exceeds a predetermined time, the parallax adjusting means instructs the 3-D image forming means to reduce the parallax of the 3-D image to be formed, thereby the display means comes to display a 3-D image having a small parallax. The user can thus be protected from eyestrain.

    摘要翻译： 这里公开了可以灵活地控制以保护使用者免受眼睛疲劳并容易操作的3-D图像显示单元。 3-D图像显示单元包括用于测量3-D图像的显示时间的测量装置，用于指示3-D图像形成装置调整3-D图像的视差的视差调整装置。 在由测量装置测量的3-D图像显示时间超过预定时间的情况下，视差调整装置指示3-D图像形成装置减小要形成的3D图像的视差，从而显示 装置显示具有小视差的3-D图像。 因此，用户可以避免眼睛疲劳。