公开(公告)号：US20090252218A1

公开(公告)日：2009-10-08

申请号：US12345004

申请日：2008-12-29

申请人： Akira NAKAGAWA ,  Shunsuke KOBAYASHI ,  Bahavani Lalitha SUSARLA

发明人： Akira NAKAGAWA ,  Shunsuke KOBAYASHI ,  Bahavani Lalitha SUSARLA

IPC分类号： H04N7/26

CPC分类号： H04N19/00533 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70

摘要： In a decoding apparatus in accordance with H.264, when the POC type is determined as “1” and a recovery point SEI is detected, the maximum frame number MaxFrameNum (or its integral multiple) is set as the initial value of the frame number offset (FrameNumOffset).

摘要翻译： 在根据H.264的解码装置中，当POC类型被确定为“1”并且检测到恢复点SEI时，将最大帧数MaxFrameNum（或其积分倍数）设置为帧号的初始值 offset（FrameNumOffset）。

公开(公告)号：US20100014764A1

公开(公告)日：2010-01-21

申请号：US12478360

申请日：2009-06-04

申请人： Satoshi SHIMADA ,  Akira NAKAGAWA ,  Shunsuke KOBAYASHI

发明人： Satoshi SHIMADA ,  Akira NAKAGAWA ,  Shunsuke KOBAYASHI

IPC分类号： G06K9/36

CPC分类号： H04N19/1883 ,  H04N19/63

摘要： According to the invention, a down-sampler samples down a signal whose low frequency component is cut to ½. A sign inversion unit cyclically multiplies the sampled-down high-frequency sub-band signal by a negative value and outputs a sign-inverted high-frequency sub-band signal. Thus, in the frequency characteristic of the high-frequency sub-band signal, the signal power on the low frequency side can be increased.

摘要翻译： 根据本发明，下采样器将低频分量切割的信号采样到1/2。 符号反转单元将取样后的高频子带信号循环乘以负值，并输出符号反相的高频子带信号。 因此，在高频子带信号的频率特性中，能够提高低频侧的信号功率。

公开(公告)号：US20100208824A1

公开(公告)日：2010-08-19

申请号：US12768105

申请日：2010-04-27

申请人： Akira NAKAGAWA ,  Hidenobu Miyoshi

发明人： Akira NAKAGAWA ,  Hidenobu Miyoshi

IPC分类号： H04N7/32

CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/16 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/61

摘要： When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.

公开(公告)号：US20120263237A1

公开(公告)日：2012-10-18

申请号：US13530514

申请日：2012-06-22

申请人： Junpei KOYAMA ,  Akira NAKAGAWA

发明人： Junpei KOYAMA ,  Akira NAKAGAWA

IPC分类号： H04N7/32

CPC分类号： H04N19/573 ,  H04N19/61

摘要： A video encoder includes: a motion compensation signal generator to generate a plurality of motion compensation signals in accordance with an encoding target signal and a plurality of reference pictures; a prediction signal generator to generate a prediction signal of the encoding target signal by utilizing the plurality of motion compensation signals; a prediction error signal generator to generate a prediction error signal; a selector to select, from among a plurality of generation rules for generating encoded information of the prediction error signal, a generation rule that is expected to reduce an information amount of an encoded state of the prediction error signal, in accordance with the plurality of motion compensation signals; and an encoded information generator to generate encoded information of the prediction error signal in accordance with the generation rule selected by the selector.

摘要翻译： 视频编码器包括：运动补偿信号发生器，用于根据编码目标信号和多个参考图像产生多个运动补偿信号; 预测信号发生器，通过利用多个运动补偿信号产生编码对象信号的预测信号; 预测误差信号发生器，用于产生预测误差信号; 从多个用于生成预测误差信号的编码信息的生成规则中选择预定将根据多个运动减小预测误差信号的编码状态的信息量的生成规则的选择器 补偿信号; 以及编码信息生成器，根据由选择器选择的生成规则，生成预测误差信号的编码信息。

公开(公告)号：US20110228849A1

公开(公告)日：2011-09-22

申请号：US13048311

申请日：2011-03-15

申请人： Akira NAKAGAWA

发明人： Akira NAKAGAWA

IPC分类号： H04N7/32

CPC分类号： H04N19/105 ,  H04N19/11 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593

摘要： An image processing apparatus includes a predictive picture generator configured to generate a predictive picture for an encoding target block based on pixel values of pixels included in already-encoded blocks around the encoding target block, a predictive error generator configured to generate predictive error based on a picture expressed by the encoding target block and a weighting unit configured to apply weights to pixel values by conducting a multiplication that multiplies by a constant greater than 1 the pixel values of pixels used to generate a predictive picture for another encoding target block, the pixels being pixels from among a plurality of pixels included in predictive error generated by the predictive error generator.

摘要翻译： 一种图像处理装置，包括：预测图像生成器，被配置为基于编码对象块周围的已编码块中包含的像素的像素值生成编码对象块的预测图像;预测误差发生器，被配置为基于 由编码目标块表示的图像和加权单元，被配置为通过进行将大于1的常数乘以用于生成另一编码目标块的预测图像的像素的像素值的乘法来对像素值施加权重，所述像素为 包括在由预测误差发生器产生的预测误差中的多个像素中的像素。

公开(公告)号：US20110164681A1

公开(公告)日：2011-07-07

申请号：US12752399

申请日：2010-04-01

申请人： Akira NAKAGAWA ,  Hidenobu MIYOSHI

发明人： Akira NAKAGAWA ,  Hidenobu MIYOSHI

IPC分类号： H04N7/32

CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/16 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/61

摘要： When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.

摘要翻译： 当在具有不同奇偶性的场之间进行预测时，通过根据编码/解码字段奇偶校验（顶/底）和参考场奇偶校验（顶部）来自适应地切换色度运动矢量的生成来提高色度矢量的预测效率 / bottom），编码效率相应提高。

公开(公告)号：US20090178092A1

公开(公告)日：2009-07-09

申请号：US12116711

申请日：2008-05-07

申请人： Akira NAKAGAWA ,  Atsushi Ichiki

发明人： Akira NAKAGAWA ,  Atsushi Ichiki

IPC分类号： H04N7/173

CPC分类号： H04N21/234345 ,  H04N7/17336 ,  H04N21/234381 ,  H04N21/2387 ,  H04N21/2393 ,  H04N21/25891 ,  H04N21/47202 ,  H04N21/6587 ,  H04N21/812

摘要： A video picture information delivering apparatus delivers moving pictures according to a request from a terminal device. The apparatus comprises a determining unit for determining whether or not a predetermined particular picture is included in some of moving pictures to be skipped, upon receipt of a request to skip the some of the moving pictures; and a transmitting unit for transmitting to the terminal device associated information corresponding to the particular picture along with the moving pictures after being skipped, if the particular picture is included in the some of the skipped moving pictures.

摘要翻译： 视频图像信息传送装置根据来自终端装置的请求传送运动图像。 该装置包括：确定单元，用于在接收到跳过一些运动图像的请求时，确定预定的特定图像是否包括在要跳过的运动图像的一些中; 以及发送单元，用于如果特定图像被包括在一些跳过的运动图像中，则在跳过之后向终端设备发送与特定图像相关联的关联信息以及运动图像。

公开(公告)号：US20130107958A1

公开(公告)日：2013-05-02

申请号：US13611742

申请日：2012-09-12

申请人： Satoshi SHIMADA ,  Kimihiko KAZUI ,  Junpei KOYAMA ,  Akira NAKAGAWA

发明人： Satoshi SHIMADA ,  Kimihiko KAZUI ,  Junpei KOYAMA ,  Akira NAKAGAWA

IPC分类号： H04N7/32 ,  H04N7/34

CPC分类号： H04N19/198 ,  H04N19/51 ,  H04N19/52 ,  H04N19/593

摘要： A video decoding apparatus according to one aspect of the disclosure performs a decoding process, on a process block basis, using a motion vector of the process block and prediction information candidates of the motion vector. The video decoding apparatus includes a first prediction information candidate generating part configured to acquire the prediction information of the adjacent block to generate the prediction information candidate if motion compensation of the block is performed using the same prediction information as the prediction information of the adjacent block; and a second prediction information candidate generating part configured to add prediction information to the prediction information candidates if the number of the prediction information candidates is less than a predetermined number and two prediction information items of the prediction information candidates have the reference picture identifiers indicating the same picture, the added prediction information including an averaged motion vector of two motion vectors.

摘要翻译： 根据本公开的一个方面的视频解码装置在处理块的基础上，使用处理块的运动矢量和运动矢量的预测信息候选来执行解码处理。 视频解码装置包括第一预测信息候补生成部，被配置为获取相邻块的预测信息，以生成预测信息候选，如果使用与相邻块的预测信息相同的预测信息来执行块的运动补偿; 以及第二预测信息候选生成部，被配置为如果所述预测信息候选的数量少于预定数量而将预测信息添加到所述预测信息候选，并且所述预测信息候选的两个预测信息项具有指示相同的参考图像标识符 图像，添加的预测信息包括两个运动矢量的平均运动矢量。

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。

公开(公告)号：US20090232218A1

公开(公告)日：2009-09-17

申请号：US12470095

申请日：2009-05-21

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： H04N7/12 ,  H04N7/32

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。