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29 条记录 (耗时 0.018 秒)

    Video coding device and video decoding device
    21.
    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：EP0961496A2

    公开(公告)日：1999-12-01

    申请号：EP99202513.0

    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： A video coding device comprising: first coding means for coding a video sequence of a background; second coding means for coding a video sequence of at least a part of a front image; and area-information coding means for coding a binary area information representing a shape of a part video, characterized in that the device is further provided with a weight data preparing means for preparing multivalued weighting data from the binary area-information and gives weight to each of the video sequence according to the weight data.
    A corresponding decoding device is also provided.

    摘要翻译： 一种视频编码装置，包括：第一编码装置，用于编码背景的视频序列; 第二编码装置，用于对前方图像的至少一部分的视频序列进行编码; 以及区域信息编码装置，用于对表示部分视频的形状的二进制区域信息进行编码，其特征在于，该装置还配备有一个权重数据准备装置，用于从二进制区域信息中准备多值加权数据并给每个 视频序列根据权重数据。 还提供了相应的解码设备。

    Hierarchical video coding device and decoding device
    22.
    发明公开
    Hierarchical video coding device and decoding device 失效
    分层图像编码器和解码器

    公开(公告)号：EP0753970A3

    公开(公告)日：1999-08-25

    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.

    Image encoder and image decoder
    25.
    发明公开
    Image encoder and image decoder 审中-公开
    图像编码器和解码器

    公开(公告)号：EP1750448A3

    公开(公告)日：2009-03-18

    申请号：EP06018984.2

    申请日：1998-09-03

    申请人： Sharp Kabushiki Kaisha

    发明人： Ito, Norio ,  Hasegawa, Shinya ,  Kusao, Hiroshi ,  Katata, Hiroyuki ,  Aono, Tomoko

    IPC分类号： H04N7/30 ,  H04N1/41 ,  H04N7/26

    CPC分类号： G06T3/4084 ,  H04N19/124 ,  H04N19/167 ,  H04N19/46 ,  H04N19/63 ,  H04N19/645 ,  H04N19/70 ,  H04N19/98

    摘要： An image coding device comprising: a tile decomposition portion for decomposing image data into tiles each of N pixels x M pixels and outputting the N x M pixels in the tile as an objective data to be coded for a corresponding each of the tiles; an adjacent pixel adding portion for providing a objective tile to be coded with adjacent pixels necessary for wavelet transformation of the objective tile when such pixels exist at the periphery thereof; a wavelet coding portion for extrapolating a predetermined data when no pixel existing at the periphery of the objective tile, decomposing each of the tiles into subbands and outputting only wavelet coefficients of the objective tile; a management information generating portion for generating management information necessary for independently decoding any desirable tile on a subband-by-subband basis; and a coded data integrating portion for attaching the management information to coded information to generate a bit stream, wherein the management information includes information on a location of the coded information for each of the tiles in the bit stream and information for managing and identifying each of the subbands.

    Electronic equipement
    27.
    发明公开
    Electronic equipement 审中-公开
    电子设备

    公开(公告)号：EP1406163A2

    公开(公告)日：2004-04-07

    申请号：EP03021054.6

    申请日：2003-09-17

    申请人： Sharp Kabushiki Kaisha

    发明人： Taniguchi, Keiji ,  Sasa, Masaaki ,  Ito, Norio ,  Kitaura, Ryuji

    IPC分类号： G06F3/14

    CPC分类号： H04M1/72522 ,  G06F3/1423 ,  G09G3/003 ,  H04M1/0214 ,  H04M1/72547 ,  H04M1/72555 ,  H04M1/72561 ,  H04M2250/16 ,  H04M2250/52 ,  H04N13/359

    摘要： In an electronic equipment provided with 2D (two-dimensional) and 3D (three-dimensional) displaying functions, an easily viewable 2D image screen and an enjoyable 3D image screen are switched and displayed with a simple key operation. A first display portion (5) of the electronic equipment does not generate optical parallax during the display of 2D image, enabling display of an easily viewable 2D image screen. The electronic equipment shares the data, permitting switching of the 2D image display to 3D image display.

    摘要翻译： 在具有2D（二维）和3D（三维）显示功能的电子设备中，通过简单的按键操作切换并显示易于观看的2D图像画面和愉快的3D图像画面。 电子设备的第一显示部分（5）在2D图像的显示期间不产生光学视差，使得能够显示容易观看的2D图像屏幕。 电子设备共享数据，允许将2D图像显示切换为3D图像显示。

    Video coding device and video decoding device
    28.
    发明公开
    Video coding device and video decoding device 失效

    公开(公告)号：EP0961497A3

    公开(公告)日：2000-10-25

    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.

    Video coding device and video decoding device
    29.
    发明公开
    Video coding device and video decoding device 失效
    Videokodierung-和解码设备

    公开(公告)号：EP0961498A2

    公开(公告)日：1999-12-01

    申请号：EP99202515.5

    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： A video coding device including video coding means for coding a specified part-area of a video sequence and area-information coding means for coding area information representing a shape of a specified part-area, characterized in that the area-information coding means includes area-information approximating means for approximating the area shape by a coarser step-formed shape, approximated area-information coding means for coding the area information representing an area-shape approximated by the area-information approximating means, area-information coding means for coding the area information without approximating the area shape, adaptive selecting means for adaptively selecting either of the approximated area-information coding means and the area-information coding means and the device is further provided with coded-data integrating means for integrating selection information representing a result of selection made by the adaptive selecting means, coded data of a part video encoded by the video coding means and coded data of area information encoded by the area-information coding means.
    A corresponding decoding device is also provided.