公开(公告)号：US5590139A

公开(公告)日：1996-12-31

申请号：US453023

申请日：1995-05-30

申请人： Teruhiko Suzuki ,  Yoichi Yagasaki ,  Tatsuya Sudo ,  Toru Okazaki

发明人： Teruhiko Suzuki ,  Yoichi Yagasaki ,  Tatsuya Sudo ,  Toru Okazaki

IPC分类号： H04N5/92 ,  G06F17/14 ,  G06T9/00 ,  H03M7/30 ,  H03M7/36 ,  H03M7/40 ,  H04N1/41 ,  H04N19/102 ,  H04N19/136 ,  H04N19/176 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/48 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/85 ,  H04N19/89 ,  H04N19/91 ,  H04N5/917 ,  H04N7/30

CPC分类号： G06F17/147 ,  H04N19/126 ,  H04N19/18 ,  H04N19/42 ,  H04N19/45 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N19/89 ,  H04N19/124 ,  H04N19/65

摘要： Mismatch errors occur in the local decoder of a MPEG-standard compressor for a motion picture signal, and in an MPEG-standard expander for a compressed motion picture signal. This is because of the lack of a standard for rounding results of *.5 (* is an integer) obtained when a set of transform coefficients resulting from compressing the motion picture signal is inversely orthogonally transformed. The invention prevents mismatch errors by pre-processing the set of transform coefficients prior to the inverse orthogonal transform. The transform coefficients in the set are summed, and the parity (odd or even) of the sum is judged. When the parity of the sum is judged to be even, the parity of one of the transform coefficients in the set is inverted to provide a parity-inverted transform coefficient. This makes the parity of the sum odd. Then, when the set of transform coefficients including the parity-inverted transform coefficient is inversely orthogonally transformed, none of the results of the orthogonal transform will have a value of *.5.

摘要翻译： 在用于运动图像信号的MPEG标准压缩器的本地解码器中以及用于压缩运动图像信号的MPEG标准扩展器中发生不匹配错误。 这是因为当压缩运动图像信号产生的一组变换系数被逆向正交变换时，缺少* .5（*是整数）的舍入结果的标准。 本发明通过在逆正交变换之前预处理变换系数集来防止失配误差。 将集合中的变换系数相加，并且判断和的奇偶校验（奇数或偶数）。 当总和的奇偶校验被判断为偶数时，该组中的一个变换系数的奇偶校验被反转以提供奇偶校验反转换系数。 这使得奇数的奇数。 然后，当包括奇偶校验反转变换系数的变换系数组被逆向正交变换时，正交变换的结果都不具有* .5的值。

公开(公告)号：US5481553A

公开(公告)日：1996-01-02

申请号：US202783

申请日：1994-02-28

申请人： Teruhiko Suzuki ,  Yoichi Yagasaki ,  Tatsuya Sudo ,  Toru Okazaki

发明人： Teruhiko Suzuki ,  Yoichi Yagasaki ,  Tatsuya Sudo ,  Toru Okazaki

IPC分类号： H04N5/92 ,  G06F17/14 ,  G06T9/00 ,  H03M7/30 ,  H03M7/36 ,  H03M7/40 ,  H04N1/41 ,  H04N19/102 ,  H04N19/136 ,  H04N19/176 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/48 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/85 ,  H04N19/89 ,  H04N19/91 ,  H04N1/415

CPC分类号： G06F17/147 ,  H04N19/126 ,  H04N19/18 ,  H04N19/42 ,  H04N19/45 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N19/89 ,  H04N19/124 ,  H04N19/65

摘要： Mismatch errors occur in the local decoder of a MPEG-standard compressor for a motion picture signal, and in an MPEG-standard expander for a compressed motion picture signal. This is because of the lack of a standard for rounding results of *0.5 (* is an integer) obtained when a set of transform coefficients resulting from compressing the motion picture signal is inversely orthogonally transformed. The invention prevents mismatch errors by pre-processing the set of transform coefficients prior to the inverse orthogonal transform. The transform coefficients in the set are summed, and the parity (odd or even) of the sum is judged. When the parity of the sum is judged to be even, the parity of one of the transform coefficients in the set is inverted to provide a parity-inverted transform coefficient. This makes the parity of the sum odd. Then, when the set of transform coefficients including the parity-inverted transform coefficient is inversely orthogonally transformed, none of the results of the orthogonal transform will have a value of *0.5.

摘要翻译： 在用于运动图像信号的MPEG标准压缩器的本地解码器中以及用于压缩运动图像信号的MPEG标准扩展器中发生不匹配错误。 这是因为当由压缩运动图像信号产生的一组变换系数被逆向正交变换时，缺少* 0.5（*是整数）的舍入结果的标准。 本发明通过在逆正交变换之前预处理变换系数集来防止失配误差。 将集合中的变换系数相加，并且判断和的奇偶校验（奇数或偶数）。 当总和的奇偶校验被判断为偶数时，该组中的一个变换系数的奇偶校验被反转以提供奇偶校验反转换系数。 这使得奇数的奇数。 然后，当包括奇偶校验反转换系数的变换系数集合被逆向正交变换时，正交变换的结果都不会具有* 0.5的值。

公开(公告)号：US5410350A

公开(公告)日：1995-04-25

申请号：US5311

申请日：1993-01-15

申请人： Motoki Kato ,  Yoichi Yagasaki ,  Jun Yonemitsu

发明人： Motoki Kato ,  Yoichi Yagasaki ,  Jun Yonemitsu

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50

CPC分类号： H04N19/98 ,  H04N19/12 ,  H04N19/61

摘要： A motion picture coding and decoding system is provided, which permits high picture quality to be obtained with less information amount than that in case of a system having the sole function of DCT coding, permits reduction of block distortion of reproduced picture and permits coding efficiency increase. One picture frame is divided into a plurality of blocks for block-by-block coding. At this time, discrete cosine transform (DCT) coding and intra-block non-transform coding (NTC) are adaptively switched one over to the other according to the character of pattern. In case of the intra-block non-transform coding, predictive values of block and quantizing width are transmitted. Each block is adaptively selected with sub block of frame construction or sub block of field construction.

摘要翻译： 提供了一种运动图像编码和解码系统，其允许以比具有唯一DCT编码功能的系统的情况更少的信息量获得高图像质量，允许减少再现图像的块失真并且允许编码效率增加 。 一个画面被分成多个用于逐块编码的块。 此时，离散余弦变换（DCT）编码和块内非变换编码（NTC）根据模式的特性自适应地切换到另一个。 在块内非变换编码的情况下，发送块和量化宽度的预测值。 每个块由框架结构的子块或现场构造的子块自适应地选择。

公开(公告)号：US5132792A

公开(公告)日：1992-07-21

申请号：US596491

申请日：1990-10-12

申请人： Jun Yonemitsu ,  Yoichi Yagasaki ,  Katsuji Igarashi ,  Mark Veltman

发明人： Jun Yonemitsu ,  Yoichi Yagasaki ,  Katsuji Igarashi ,  Mark Veltman

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/32 ,  H04N7/36 ,  H04N7/46 ,  H04N7/50 ,  H04N7/52

CPC分类号： H04N7/52 ,  H04N19/50 ,  H04N19/51 ,  H04N19/577 ,  H04N19/61

摘要： Video signal transmitting system in which digital video signal are divided into groups of predetermined frames. Digital video signals of at least one frame are intraframe coded and then transmitted. Remaining digital video signals are interframe coded with reference to the intraframe coded digital video signals, and intraframe coded digital video signals of a subsequent group of frames and are then transmitted. A motion vector from a predetermined reference frame is detected. Video signals are interframe coded by the motion vector to transmit the video signals. A motion vector from a first frame which is a plurality of frames away from the reference frame is converted to a motion vector for a one frame interval between the reference frame and the first frame. The motion vector is optimized, and is then transmitted.

公开(公告)号：US08842732B2

公开(公告)日：2014-09-23

申请号：US13425107

申请日：2012-03-20

申请人： Liming Wang ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Liming Wang ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N7/12 ,  H04N19/105 ,  H04N19/112 ,  H04N19/59 ,  H04N19/174 ,  H04N19/61 ,  H04N19/33 ,  H04N19/187 ,  H04N19/16 ,  H04N19/50

CPC分类号： H04N19/105 ,  H04N19/112 ,  H04N19/16 ,  H04N19/174 ,  H04N19/187 ,  H04N19/33 ,  H04N19/50 ,  H04N19/59 ,  H04N19/61

摘要： An encoding apparatus for encoding progressive image data and interlace image data corresponding to this progressive image data, having a first encoding unit configured to encode picture data composing the interlace image data to generate first encoded data and decoding and recomposing the first encoded data to generate recomposed image data, an up sample processing unit configured to up sample the generated recomposed image data to generate image data having the same resolution as that of the progressive image data, and a second encoding unit configured to encode the picture data composing the progressive image data to generate second encoded data using the generated image data as predictive image data.

摘要翻译： 一种用于对逐行图像数据进行编码的逐行图像数据和隔行扫描图像数据的编码装置，具有：第一编码单元，对构成隔行图像数据的图像数据进行编码，生成第一编码数据，对第一编码数据进行解码和重构， 图像数据，上采样处理单元，被配置为对所生成的重组图像数据进行采样，以生成与逐行图像数据具有相同分辨率的图像数据;以及第二编码单元，被配置为将构成逐行图像数据的图像数据编码为 使用所生成的图像数据作为预测图像数据来生成第二编码数据。

公开(公告)号：US08831369B2

公开(公告)日：2014-09-09

申请号：US13219849

申请日：2011-08-29

申请人： Takeshi Uemori ,  Ohji Nakagami ,  Masahito Yamane ,  Yoichi Yagasaki

发明人： Takeshi Uemori ,  Ohji Nakagami ,  Masahito Yamane ,  Yoichi Yagasaki

IPC分类号： G06K9/36 ,  G06K9/46 ,  H04N7/26 ,  H04N7/30

CPC分类号： H04N19/00236 ,  H04N19/124 ,  H04N19/132 ,  H04N19/134 ,  H04N19/137 ,  H04N19/164 ,  H04N19/172 ,  H04N19/176 ,  H04N19/33 ,  H04N19/40 ,  H04N19/46 ,  H04N19/62 ,  H04N19/625

摘要： An image processing apparatus includes a two-dimensional orthogonal transform unit configured to perform two-dimensional orthogonal transform on a plurality of images, an one-dimensional orthogonal transform unit configured to perform one-dimensional orthogonal transform in a direction in which the images are arranged on two-dimensional orthogonal transform coefficient data obtained by performing the two-dimensional orthogonal transform on the images using the two-dimensional orthogonal transform unit, and a three-dimensional orthogonal transform coefficient data encoder configured to encode three-dimensional orthogonal transform coefficient data obtained by performing the one-dimensional orthogonal transform on the two-dimensional orthogonal transform coefficient data using the one-dimensional orthogonal transform unit.

摘要翻译： 图像处理装置包括被配置为对多个图像执行二维正交变换的二维正交变换单元，被配置为在图像排列方向上执行一维正交变换的一维正交变换单元 对通过使用二维正交变换单元对图像执行二维正交变换获得的二维正交变换系数数据，以及三维正交变换系数数据编码器，被配置为编码获得的三维正交变换系数数据 通过使用一维正交变换单位对二维正交变换系数数据进行一维正交变换。

公开(公告)号：US08798167B2

公开(公告)日：2014-08-05

申请号：US10536022

申请日：2003-11-28

申请人： Mark Veltman ,  Yoichi Yagasaki ,  Noriaki Oishi ,  Tadayuki Ishikawa

发明人： Mark Veltman ,  Yoichi Yagasaki ,  Noriaki Oishi ,  Tadayuki Ishikawa

IPC分类号： H04N7/18 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N21/2401 ,  H04N21/23406 ,  H04N21/4302 ,  H04N21/44004

摘要： An encoding apparatus adds delay time information DTI indicating initial delay time i_d and delay time d of each group data to a position to be read prior to frame data by a decoding apparatus in the group data of encoding stream data DBI and transmits the same to the decoding apparatus 3. Namely, the encoding apparatus does not transmit initial offset delay time i_of to the decoding apparatus 3. The encoding apparatus starts to read and transmit the encoding stream data DBI from a transmission buffer at a predetermined bit rate R at timing designated by the initial offset delay time i_of.

摘要翻译： 编码装置将编码流数据DBI的组数据中的解码装置将每个组数据的初始延迟时间i_d和延迟时间d的延迟时间信息添加到帧数据之前要读取的位置，并将其发送到 解码装置3.即，编码装置不向解码装置3发送初始偏移延迟时间i_of。编码装置开始以定时指定的定时从发送缓冲器读出并发送编码流数据DBI， 初始偏移延迟时间i_of。

公开(公告)号：US08787691B2

公开(公告)日：2014-07-22

申请号：US13378744

申请日：2010-06-23

申请人： Yoshitomo Takahashi ,  Teruhiko Suzuki ,  Takuya Kitamura ,  Yoichi Yagasaki

发明人： Yoshitomo Takahashi ,  Teruhiko Suzuki ,  Takuya Kitamura ,  Yoichi Yagasaki

IPC分类号： G06K9/36

CPC分类号： H04N19/59 ,  H04N13/139 ,  H04N13/156 ,  H04N13/161 ,  H04N19/597 ,  H04N19/85

摘要： Encoding efficiency of image prediction encoding can be improved by performing horizontal packing as horizontal processing to manipulate a horizontal-direction array of pixels of each of a first thinned-out image and a second thinned-out image arrayed in checkerboard fashion, obtained by thinning out the pixels of each of a first image and a second image different from the first image every other line in an oblique direction, wherein pixels of first and second thinned-out images are packed in the horizontal direction. A combined image can be generated, which is combined by adjacently arraying the post-horizontal processing first and second thinned-out images after horizontal processing, as an image to serve as the object of prediction encoding. Aspects of this disclosure can be applied to a case of performing prediction encoding on a first and second image, such as a left and right images making up a 3D image.

摘要翻译： 可以通过执行水平打包作为水平处理来改善图像预测编码的编码效率，以操纵以棋盘方式排列的第一稀疏图像和第二稀疏图像中的每一个的水平方向阵列的像素， 第一图像和第二图像中的每一个的像素在倾斜方向上每隔一行彼此不同，其中第一和第二稀疏图像的像素被包装在水平方向上。 可以生成组合图像，其通过在水平处理之后相邻排列后水平处理第一和第二稀疏图像来组合，作为用作预测编码对象的图像。 本公开的方面可以应用于对构成3D图像的左图像和第二图像执行预测编码的情况。

公开(公告)号：US08705627B2

公开(公告)日：2014-04-22

申请号：US13054648

申请日：2009-07-24

申请人： Ohji Nakagami ,  Junichi Tanaka ,  Takefumi Nagumo ,  Yoichi Yagasaki

发明人： Ohji Nakagami ,  Junichi Tanaka ,  Takefumi Nagumo ,  Yoichi Yagasaki

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N7/26 ,  H04N7/36 ,  H04N7/50

CPC分类号： H04N7/26 ,  H04N19/00 ,  H04N19/109 ,  H04N19/51 ,  H04N19/52 ,  H04N19/523 ,  H04N19/573 ,  H04N19/615

摘要： The present invention relates to an image processing apparatus and method that allow the generation of a high-accuracy prediction image without increasing the processing load.A difference image between motion compensation images MC0 and MC1 extracted from different reference frames is calculated. A low-pass filter is applied to the difference image, and the gain of an obtained image is adjusted. A high-pass filter is applied to an image obtained by the application of a low-pass filter, and the gain of an obtained image is adjusted. An image obtained by adding the output of a gain adjustment circuit 53 and the output of a gain adjustment circuit 55 is added with the motion compensation image MC0, and a prediction image is generated. The present invention can be applied to an apparatus that performs prediction encoding, and an apparatus that decodes information encoded through prediction encoding.

摘要翻译： 本发明涉及一种允许生成高精度预测图像而不增加处理负荷的图像处理装置和方法。 计算从不同参考帧提取的运动补偿图像MC0和MC1之间的差分图像。 对差分图像应用低通滤波器，并且调整所获得的图像的增益。 将高通滤波器应用于通过应用低通滤波器获得的图像，并且调整所获得的图像的增益。 通过将增益调整电路53的输出和增益调整电路55的输出相加而获得的图像与运动补偿图像MC0相加，生成预测图像。 本发明可以应用于执行预测编码的装置，以及对通过预测编码编码的信息进行解码的装置。

公开(公告)号：US08634472B2

公开(公告)日：2014-01-21

申请号：US13489089

申请日：2012-06-05

申请人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki

IPC分类号： H04N7/12

CPC分类号： H04N19/109 ,  H04N7/01 ,  H04N11/042 ,  H04N11/046 ,  H04N19/105 ,  H04N19/112 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/152 ,  H04N19/16 ,  H04N19/176 ,  H04N19/186 ,  H04N19/36 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/523 ,  H04N19/57

摘要： An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.