公开(公告)号：US08472522B2

公开(公告)日：2013-06-25

申请号：US12526896

申请日：2008-02-20

申请人： Shohei Matsuo ,  Seishi Takamura ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Shohei Matsuo ,  Seishi Takamura ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/11 ,  H04N19/146 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593

摘要： A video encoding method includes setting candidates for reference pixels to pixels within a predetermined distance range measured from an encoding target block; generating a predicted signal by sequentially selecting reference pixels used for the intra prediction of the encoding target block from among the reference pixel candidates while changing a distance condition from the encoding target block, and by generating the predicted signal based on the reference pixels for each distance condition; computing an encoding cost required for subjecting the encoding target block to intra prediction encoding using each generated predicted signal; finally determining reference pixels used for the intra prediction of the encoding target block based on each computed encoding cost; and encoding information which indicates the position of the determined reference pixels.

摘要翻译： 视频编码方法包括将参考像素的候选设置为从编码目标块测量的预定距离范围内的像素; 通过在从编码目标块改变距离条件的同时从参考像素候选中顺序地选择用于编码目标块的帧内预测的参考像素，并且通过基于每个距离的参考像素生成预测信号来生成预测信号 条件; 计算使用每个生成的预测信号对编码目标块进行帧内预测编码所需的编码成本; 最后基于每个计算的编码成本确定用于编码目标块的帧内预测的参考像素; 以及指示所确定的参考像素的位置的编码信息。

公开(公告)号：US08355438B2

公开(公告)日：2013-01-15

申请号：US12445047

申请日：2007-10-23

申请人： Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima ,  Hideaki Kimata

发明人： Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima ,  Hideaki Kimata

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/00569 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/50 ,  H04N19/52 ,  H04N19/573 ,  H04N19/597 ,  H04N19/61

摘要： When video images are processed by applying temporal or spatial interframe prediction encoding to each divided area, and generating a predicted image of a processing target area based on a reference frame of the processing target area and reference information which indicates a predicted target position of the processing target area in the reference frame, predicted reference information is generated as predicted information of the reference information. Reference information used when an area adjacent to the processing target area was processed is determined as predicted reference information prediction data used for predicting the reference information of the processing target area. Reference area reference information is generated using one or more pieces of reference information used when a reference area indicated by the prediction data was processed. The predicted reference information prediction data is updated using the reference area reference information. The predicted reference information is generated using one or more pieces of the updated predicted reference information prediction data.

摘要翻译： 当通过对每个分割区域应用时间或空间帧间预测编码来处理视频图像时，并且基于处理目标区域的参考帧生成处理目标区域的预测图像，以及指示处理的预测目标位置的参考信息 参考帧中的目标区域，作为参考信息的预测信息生成预测参考信息。 将与处理对象区域相邻的区域处理时使用的参考信息确定为用于预测处理对象区域的参考信息的预测基准信息预测数据。 当处理由预测数据指示的参考区域时，使用一个或多个参考信息生成参考区域参考信息。 使用参考区域参考信息更新预测参考信息预测数据。 使用一个或多个更新的预测参考信息预测数据来生成预测参考信息。

公开(公告)号：US08290289B2

公开(公告)日：2012-10-16

申请号：US12441076

申请日：2007-09-18

申请人： Shinya Shimizu ,  Masaki Kitahara ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Shinya Shimizu ,  Masaki Kitahara ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： G06K9/00 ,  G06K9/36 ,  G06K9/46 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

CPC分类号： H04N19/527 ,  H04N19/147 ,  H04N19/19 ,  H04N19/523 ,  H04N19/597

摘要： An image encoding method includes determining a corresponding point on a target image for encoding, which corresponds to each pixel on a reference image, based on the distance from a camera used for obtaining the reference image to an imaged object, and a positional relationship between cameras; computing a parallax vector from the position of the pixel to the corresponding point in the pixel space; computing a target predictive vector having the same starting point as the parallax vector and components obtained by rounding off the components of the parallax vector; computing a target reference vector having the same starting point as the parallax vector and the same size and direction as a differential vector between the target predictive vector and the parallax vector; and setting a predicted pixel value of a pixel on the target encoding image, which is indicated by the target predictive vector, to a value of a pixel on the reference image, which is indicated by the target reference vector.

摘要翻译： 图像编码方法包括：基于从用于获得参考图像的相机到成像对象的距离，以及相机之间的位置关系确定对应于参考图像上的每个像素的编码对象图像上的对应点 ; 从所述像素的位置到所述像素空间中的对应点计算视差矢量; 计算具有与视差矢量相同起始点的目标预测矢量，以及通过舍入视差矢量的分量而获得的分量; 计算具有与视差矢量相同的起始点和与目标预测矢量和视差矢量之间的差分矢量相同的大小和方向的目标参考矢量; 并且将由目标预测矢量指示的目标编码图像上的像素的预测像素值设置为由目标参考矢量指示的参考图像上的像素的值。

公开(公告)号：US20120170651A1

公开(公告)日：2012-07-05

申请号：US13421133

申请日：2012-03-15

申请人： Shinya Shimizu ,  Hideaki Kimata ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Shinya Shimizu ,  Hideaki Kimata ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： H04N7/32 ,  H04N7/12

CPC分类号： H04N19/577 ,  H04N19/51 ,  H04N19/52 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

摘要： A video encoding method includes selecting a reference vector target frame and a reference frame from among already-encoded frames; encoding information for designating each frame; setting a reference vector for indicating an area in the reference vector target frame with respect to an encoding target area; encoding the reference vector; performing a corresponding area search by using image information of a reference vector target area, which belongs to the reference vector target frame and is indicated by the reference vector, and the reference frame; determining a reference area in the reference frame based on the search result; generating a predicted image by using image information of the reference frame, which corresponds to the reference area; and encoding differential information between image information of the encoding target area and the predicted image.

摘要翻译： 视频编码方法包括从已经编码的帧中选择参考矢量目标帧和参考帧; 用于指定每个帧的编码信息; 设置用于指示参考矢量目标帧中相对于编码目标区域的区域的参考矢量; 编码参考矢量; 通过使用属于参考矢量目标帧并由参考矢量表示的参考矢量目标区域的图像信息和参考帧来执行相应区域搜索; 基于搜索结果确定参考帧中的参考区域; 通过使用对应于参考区域的参考帧的图像信息生成预测图像; 以及对编码对象区域的图像信息与预测图像之间的差分信息进行编码。

公开(公告)号：US20110194599A1

公开(公告)日：2011-08-11

申请号：US13123690

申请日：2009-10-21

申请人： Kazuya Hayase ,  Yukihiro Bandoh ,  Seishi Takamura ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Kazuya Hayase ,  Yukihiro Bandoh ,  Seishi Takamura ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： H04N7/26

CPC分类号： H04N19/103 ,  H04N19/105 ,  H04N19/187 ,  H04N19/196 ,  H04N19/197 ,  H04N19/51 ,  H04N19/577 ,  H04N19/593

摘要： In scalable video encoding, incidence rates of combinations of optimum prediction modes to be selected for spatially corresponding blocks of an upper layer and a lower layer are determined based on an optimum prediction mode that was selected in a conventional encoding, and then a correspondence table that describes relationships therebetween is created. Subsequently, the combinations of the selected optimum prediction modes described in the correspondence table are narrowed down based on the value of the incidence rate so as to create prediction mode correspondence information that describes the combinations of the optimum prediction mode narrowed down. When encoding the upper layer block, the prediction mode search candidate that is to be searched in the encoding is decided by referring to the prediction mode correspondence information using as a key the optimum prediction mode selected in the encoding of the spatially corresponding lower layer block and thereby reducing the number of the prediction mode search candidates.

摘要翻译： 在可分级视频编码中，基于在常规编码中选择的最佳预测模式来确定要选择用于上层和下层的空间对应块的最佳预测模式的组合的发生率，然后是对应表， 描述之间的关系被创建。 随后，基于入射率的值，将对应表中描述的所选择的最佳预测模式的组合变窄，以便产生描述缩小的最佳预测模式的组合的预测模式对应信息。 当对上层块进行编码时，通过参照在空间对应的下层块的编码中选择的最佳预测模式作为关键字的预测模式对应信息来决定在编码中要搜索的预测模式搜索候选，以及 从而减少预测模式搜索候选的数量。

公开(公告)号：US07929605B2

公开(公告)日：2011-04-19

申请号：US10559903

申请日：2004-07-22

申请人： Hideaki Kimata ,  Masaki Kitahara ,  Kazuto Kamikura

发明人： Hideaki Kimata ,  Masaki Kitahara ,  Kazuto Kamikura

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/136 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/503

摘要： In order to make it possible to obtain the correct decoded image even in the case of not decoding a particular frame of the encoded data and improve the coding efficiency, the predicted image production unit 103 selects the image data from the image data of a plurality of frames in the reference image memory 107 which are encoded in the past, of the i-th (1≦i≦j) category, for the current frame which is classified as the j-th category by the image classifying unit 102, and produces the predicted image. The difference encoding unit 104 encodes a difference between the image data of the current frame and the predicted image. Also, the current category encoding unit 106 encodes the category number of the current frame, and the reference image specifying data encoding unit 105 encodes the reference image specifying data which specifies the image data selected from the reference image memory 107.

摘要翻译： 为了即使在不对编码数据的特定帧进行解码并提高编码效率的情况下也可以获得正确的解码图像，预测图像生成单元103从多个图像数据的图像数据中选择图像数据 对于由图像分类单元102分类为第j个类别的当前帧，在第i（1＆nlE; i＆nlE; j）类别中过去编码的参考图像存储器107中的帧，并且产生 预测图像。 差编码单元104对当前帧的图像数据和预测图像之间的差进行编码。 此外，当前类别编码单元106对当前帧的类别编号进行编码，并且参考图像指定数据编码单元105对指定从参考图像存储器107中选择的图像数据的参考图像指定数据进行编码。

公开(公告)号：US20100290715A1

公开(公告)日：2010-11-18

申请号：US12682027

申请日：2008-10-09

申请人： Hideaki Kimata ,  Shinya Shimiza ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Hideaki Kimata ,  Shinya Shimiza ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： G06K9/32

CPC分类号： G06T5/50 ,  G06T2200/32 ,  G06T2207/10016 ,  G06T2207/20208 ,  G06T2207/20221

摘要： An image generation method for generating image information of an image C by using an image A and an image B having a bit depth higher than that of image A. Image C having the same bit depth as image B is generated by increasing the bit depth of image A by means of tone mapping; presence or absence of a point in image B corresponding to each pixel position of image C and the position of the relevant corresponding point are estimated; and to each pixel position in image C for which it is estimated that there is a corresponding point, image information of the corresponding position in image B is assigned. It is possible to generate image information at each pixel position in image C for which it is estimated in the corresponding point estimation that there is no corresponding point, by using the image information assigned according to an estimation result that there is a corresponding point.

摘要翻译： 用于通过使用图像A和比特深度高于图像A的图像A的图像B来生成图像C的图像信息的图像生成方法。通过增加图像B的位深度来生成具有与图像B相同的位深度的图像C. 图像A通过色调映射; 估计对应于图像C的每个像素位置的图像B中的点的存在或不存在以及相关对应点的位置; 并且对于估计有相应点的图像C中的每个像素位置，分配图像B中相应位置的图像信息。 通过使用根据具有对应点的估计结果分配的图像信息，可以在图像C中的每个像素位置生成图像信息，该图像信息在相应的点估计中被估计为没有对应点。

公开(公告)号：US20100220784A1

公开(公告)日：2010-09-02

申请号：US12086709

申请日：2007-01-04

申请人： Masayuki Tanimoto ,  Toshiaki Fujii ,  Kenji Yamamoto ,  Masaki Kitahara ,  Hideaki Kimata ,  Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Masayuki Tanimoto ,  Toshiaki Fujii ,  Kenji Yamamoto ,  Masaki Kitahara ,  Hideaki Kimata ,  Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： H04N7/12

CPC分类号： H04N19/64 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/597 ,  H04N19/61

摘要： By using parallax compensation which performs prediction by using parallax between video images, the video images are encoded as a single video image. Reference parallax for a target image to be encoded is set, wherein the reference parallax is estimated using a reference image; area division in an image frame is set; parallax displacement for each divided area is set, wherein the parallax displacement is the difference between the reference parallax and parallax for the parallax compensation; data of the area division is encoded; and data for indicating the parallax displacement is encoded. During decoding, reference parallax for a target image to be decoded is set, wherein it is estimated using a reference image; data for indicating area division, which is included in encoded data, is decoded; and data of parallax displacement, which is included in the encoded data, is decoded for each area indicated by the area division data.

摘要翻译： 通过使用通过使用视频图像之间的视差执行预测的视差补偿，将视频图像编码为单个视频图像。 设置要编码的目标图像的参考视差，其中使用参考图像来估计参考视差; 设置图像帧中的区域划分; 设定每个分割区域的视差位移，其中视差位移是视差补偿的参考视差和视差之差; 区域划分的数据被编码; 并且用于指示视差位移的数据被编码。 在解码期间，设置要解码的目标图像的参考视差，其中使用参考图像来估计; 包含在编码数据中的用于指示区域划分的数据被解码; 并且包括在编码数据中的视差位移的数据对于由区域划分数据指示的每个区域被解码。

公开(公告)号：US20100209016A1

公开(公告)日：2010-08-19

申请号：US12682026

申请日：2008-10-09

申请人： Hideaki Kimata ,  Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima

发明人： Hideaki Kimata ,  Shinya Shimizu ,  Kazuto Kamikura ,  Yoshiyuki Yashima

IPC分类号： G06K9/36

CPC分类号： G06T3/4007 ,  H04N1/3871

摘要： An image generation method for generating image information of an image C by using an image A and an image B having a resolution higher than that of image A. Image C having the same resolution as image B is generated by enlarging image A; presence or absence of a point in image B corresponding to each pixel position of image C and the position of the relevant corresponding point are estimated; and to each pixel position in image C for which it is estimated that there is a corresponding point, image information of the corresponding position in image B is assigned. It is possible to generate image information at each pixel position in image C for which it is estimated in the corresponding point estimation that there is no corresponding point, by using the image information assigned according to an estimation result that there is a corresponding point.

摘要翻译： 通过使用图像A和分辨率高于图像A的分辨率的图像B来生成图像C的图像信息的图像生成方法。通过放大图像A生成具有与图像B相同的分辨率的图像C. 估计对应于图像C的每个像素位置的图像B中的点的存在或不存在以及相关对应点的位置; 并且对于估计有相应点的图像C中的每个像素位置，分配图像B中相应位置的图像信息。 通过使用根据具有对应点的估计结果分配的图像信息，可以在图像C中的每个像素位置生成图像信息，该图像信息在相应的点估计中被估计为没有对应点。

公开(公告)号：US20100067584A1

公开(公告)日：2010-03-18

申请号：US12517534

申请日：2007-12-26

申请人： Tokinobu Mitasaki ,  Kazuto Kamikura ,  Naoki Ono

发明人： Tokinobu Mitasaki ,  Kazuto Kamikura ,  Naoki Ono

IPC分类号： H04N11/02

CPC分类号： H04N19/85 ,  H04N19/117 ,  H04N19/136 ,  H04N19/137 ,  H04N19/176 ,  H04N19/194 ,  H04N19/61 ,  H04N19/80

摘要： A video processing method includes dividing a processing target image, which forms a video image, into a plurality of divided areas; determining a bandwidth applied to the divided areas; computing a filter coefficient array for implementing frequency characteristics corresponding to a band limitation using the bandwidth; subjecting the image data to a filtering process using the filter coefficient array; deriving a value of error information between the obtained data and the original image data, and computing an allocation coefficient used for determining an optimum bandwidth, based on the derived value; determining, for each divided area, the optimum bandwidth corresponding to the allocation coefficient, and computing an optimum filter coefficient array for implementing the frequency characteristics corresponding to a band limitation using the optimum bandwidth; subjecting the image data of the divided area to a filtering process using the optimum filter coefficient array; and synthesizing the obtained data of each divided area.

摘要翻译： 视频处理方法包括将形成视频图像的处理目标图像划分成多个分割区域; 确定应用于分割区域的带宽; 计算用于使用所述带宽实现对应于频带限制的频率特性的滤波器系数阵列; 使用滤波器系数阵列对图像数据进行滤波处理; 导出所获得的数据与原始图像数据之间的误差信息的值，并且基于导出值来计算用于确定最佳带宽的分配系数; 对于每个分割区域，确定与分配系数相对应的最佳带宽，以及计算最佳滤波器系数阵列，以使用最佳带宽来实现对应于频带限制的频率特性; 使用最佳滤波器系数阵列对分割区域的图像数据进行滤波处理; 并且合成所获得的每个分割区域的数据。