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    Motion vector encoding device and decoding device
    1.
    发明授权
    Motion vector encoding device and decoding device 有权
    运动矢量编码装置和解码装置

    公开(公告)号：US08654856B2

    公开(公告)日：2014-02-18

    申请号：US13851419

    申请日：2013-03-27

    申请人： Fujitsu Limited

    发明人： Akira Nakagawa ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

    IPC分类号： H04N7/12

    CPC分类号： H04N19/00587 ,  H04N19/105 ,  H04N19/12 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

    摘要： A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

    摘要翻译： 预测误差生成单元从多个相邻块的运动矢量生成预测矢量，并且从目标矢量获得差。 多个可变长度编码单元分别以不同的编码方式编码预测误差生成单元的输出。 确定单元基于多个相邻块的运动矢量的不均匀度来估计由预测误差生成单元生成的预测矢量的精度。 选择单元选择由多个可变长度编码单元获得的编码结果之一。

    Method and apparatus for encoding and decoding an image using a reference picture
    3.
    发明授权
    Method and apparatus for encoding and decoding an image using a reference picture 失效
    使用参考图像对图像进行编码和解码的方法和装置

    公开(公告)号：US08358697B2

    公开(公告)日：2013-01-22

    申请号：US12395731

    申请日：2009-03-02

    申请人： Woo-jin Han ,  Sang-rae Lee ,  Jung-hye Min ,  Tammy Lee

    发明人： Woo-jin Han ,  Sang-rae Lee ,  Jung-hye Min ,  Tammy Lee

    IPC分类号： H04N7/26 ,  H04N7/12 ,  H04N7/32 ,  H04N7/34

    CPC分类号： H04N19/00587 ,  H04N19/105 ,  H04N19/124 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/177 ,  H04N19/43 ,  H04N19/46 ,  H04N19/58 ,  H04N19/61

    摘要： A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures.

    摘要翻译： 通过选择性地使用先前被编码和恢复的高质量关键图像，以及先前编码和恢复的第二图像，对图像组中的图像执行运动预测和补偿来对图像进行编码和解码的方法和装置。 编码图像的方法通过在第一存储单元中存储通过减少由量化误差引起的量化误差造成的损失而被编码并恢复为高质量的关键图像来提高图像的预测效率，并存储 在第二存储单元中先前编码并恢复的第二图像，然后通过选择性地使用存储在第一存储单元中的密钥图像和存储在第二存储单元中的第二图像来对组中的下一图像进行编码来执行运动预测和补偿 的图片。

    VIDEO CONTENT ANALYSIS AND/OR PROCESSING USING ENCODING LOGS
    7.
    发明申请
    VIDEO CONTENT ANALYSIS AND/OR PROCESSING USING ENCODING LOGS 审中-公开

    公开(公告)号：US20180084254A1

    公开(公告)日：2018-03-22

    申请号：US15784516

    申请日：2017-10-16

    申请人： GOOGLE LLC

    发明人： Yao-Chung Lin ,  Sam John ,  Thierry Foucu ,  Sasi Inguva

    IPC分类号： H04N19/134 ,  H04N19/142

    CPC分类号： H04N19/134 ,  H04N19/00472 ,  H04N19/00587 ,  H04N19/00921 ,  H04N19/142 ,  H04N19/40 ,  H04N19/87

    摘要： Systems and methods for processing a video sequence are disclosed. In accordance with some implementations, The method includes determining a first set of shot-change locations associated with a cut transition in a video sequence based on variance data defined in an encoding log associated with at least one previously encoded video frame. The method further includes determining a second set of shot-change locations associated with a fading transition in the video sequence based on the variance data defined in the encoding log associated with the at least one previously encoded video frame. The method also includes processing the video sequence based on at least a portion of the first set of shot-change locations and the second set of shot-change locations.

    MOTION VECTOR ENCODING DEVICE AND DECODING DEVICE
    9.
    发明申请
    MOTION VECTOR ENCODING DEVICE AND DECODING DEVICE 有权
    运动矢量编码装置和解码装置

    公开(公告)号：US20110064143A1

    公开(公告)日：2011-03-17

    申请号：US12952684

    申请日：2010-11-23

    申请人： Akira NAKAGAWA ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

    发明人： Akira NAKAGAWA ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

    IPC分类号： H04N7/26

    CPC分类号： H04N19/00587 ,  H04N19/105 ,  H04N19/12 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

    摘要： A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

    摘要翻译： 预测误差产生单元从多个相邻块的运动矢量生成预测矢量，并且从目标矢量获得差。 多个可变长度编码单元分别以不同的编码方式编码预测误差生成单元的输出。 确定单元基于多个相邻块的运动矢量的不均匀度来估计由预测误差生成单元生成的预测矢量的精度。 选择单元选择由多个可变长度编码单元获得的编码结果之一。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AN IMAGE USING A REFERENCE PICTURE
    10.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AN IMAGE USING A REFERENCE PICTURE 失效
    使用参考图像编码和解码图像的方法和装置

    公开(公告)号：US20090285300A1

    公开(公告)日：2009-11-19

    申请号：US12395731

    申请日：2009-03-02

    申请人： Woo-jin Han ,  Sang-rae Lee ,  Tammy Lee ,  Jung-hye Min

    发明人： Woo-jin Han ,  Sang-rae Lee ,  Tammy Lee ,  Jung-hye Min

    IPC分类号： H04N7/32 ,  H04N7/26

    CPC分类号： H04N19/00587 ,  H04N19/105 ,  H04N19/124 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/177 ,  H04N19/43 ,  H04N19/46 ,  H04N19/58 ,  H04N19/61

    摘要： A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures.

    摘要翻译： 通过选择性地使用先前被编码和恢复的高质量关键图像，以及先前编码和恢复的第二图像，对图像组中的图像执行运动预测和补偿来对图像进行编码和解码的方法和装置。 编码图像的方法通过在第一存储单元中存储通过减少由量化误差引起的量化误差造成的损失而被编码并恢复为高质量的关键图像来提高图像的预测效率，并存储 在第二存储单元中先前编码并恢复的第二图像，然后通过选择性地使用存储在第一存储单元中的密钥图像和存储在第二存储单元中的第二图像来对组中的下一图像进行编码来执行运动预测和补偿 的图片。