公开(公告)号：US20210360268A1

公开(公告)日：2021-11-18

申请号：US17388426

申请日：2021-07-29

Applicant: Virginie DRUGEON ,  Tadamasa TOMA ,  Takahiro NISHI ,  Kiyofumi ABE ,  Yusuke KATO

Inventor： Virginie DRUGEON ,  Tadamasa TOMA ,  Takahiro NISHI ,  Kiyofumi ABE ,  Yusuke KATO

IPC: H04N19/31

Abstract: An encoder includes circuitry, and memory coupled to the circuitry. The circuitry, in operation, for each of a plurality of sub-bitstreams having mutually different frame rates, encodes identification information into a header of a bitstream including the plurality of sub-bitstreams, the identification information indicating a temporal ID that is an identifier of a temporal layer related to a temporal scalability and corresponds to the sub-bitstream, and encodes level information indicating a conformance level of the sub-bitstream.

公开(公告)号：US08948265B2

公开(公告)日：2015-02-03

申请号：US13372885

申请日：2012-02-14

Applicant: Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

Inventor： Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04B1/66 ,  H04N19/51 ,  G06F1/03 ,  H04N21/2743 ,  H04N19/583 ,  H04N19/61 ,  H04N19/43 ,  H04N19/577 ,  H04N19/503

CPC classification number: H04N19/52 ,  G06F1/03 ,  G06F2101/12 ,  H04N19/105 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/43 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/577 ,  H04N19/587 ,  H04N19/61 ,  H04N19/625 ,  H04N21/2743

Abstract: A motion vector derivation unit includes a comparison unit for comparing a parameter TR1 for a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit for switching selection between the maximum value of a pre-stored parameter TR and the parameter TR1 according to the comparison result by the comparison unit; a multiplier parameter table (for multipliers); and a multiplier parameter table (for divisors) for associating the parameter TR1 with a value approximate to the inverse value (1/TR1) of this parameter TR1.

Abstract translation: 运动矢量导出单元包括比较单元，用于将参考矢量的参数TR1与预定值进行比较，以确定其是否超过预定值; 切换单元，用于根据比较单元的比较结果切换预存储参数TR的最大值与参数TR1之间的选择; 乘数参数表（用于乘数）; 以及用于将参数TR1与接近该参数TR1的反相值（1 / TR1）的值相关联的乘数参数表（用于除数）。

公开(公告)号：US08699778B2

公开(公告)日：2014-04-15

申请号：US13120677

申请日：2010-07-12

Applicant: Han Boon Teo ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Youji Shibahara ,  Takahiro Nishi ,  Kiyofumi Abe

Inventor： Han Boon Teo ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Youji Shibahara ,  Takahiro Nishi ,  Kiyofumi Abe

IPC: G06K9/00

CPC classification number: H04N19/16 ,  H04N19/112 ,  H04N19/139 ,  H04N19/14 ,  H04N19/172

Abstract: An image coding method determines one of frame coding and field coding while suppressing an increase in the complexity. The image coding method includes coding a current picture included in the pictures; determining whether a picture next to the current picture is to be coded in frame coding or field coding, depending on motion information that is information for indicating a motion in the current picture; and coding the next picture in frame coding when it is determined in the determining that the next picture is to be coded in frame coding, and coding the next picture in field coding when it is determined in the determining that the next picture is to be coded in field coding.

Abstract translation: 图像编码方法在抑制复杂度增加的同时确定帧编码和场编码中的一种。 图像编码方法包括对包括在图像中的当前图像进行编码; 根据作为用于指示当前图像中的运动的信息的运动信息，确定在帧编码或场编码中是否要编码当前图像旁边的图像; 并且当在确定下一个图像要在帧编码中被编码时确定在帧编码中对下一个图像进行编码，并且当在确定下一个图像要编码时确定下一个图像在场编码中的编码 在现场编码。

公开(公告)号：US08675729B2

公开(公告)日：2014-03-18

申请号：US11979008

申请日：2007-10-30

Applicant: Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

Inventor： Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N7/12

CPC classification number: H04N19/105 ,  G11B27/10 ,  G11B27/105 ,  H04N19/107 ,  H04N19/134 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89 ,  H04N21/44016

Abstract: In a picture coding method for generating a coded signal corresponding to each picture by coding a plurality of coded signals, a switching picture which is capable of switching a plurality of coded signals and subsequent pictures of the switching picture can refer to only a group of pictures of the same time in the coded signals. More specifically, the case where picture numbers of an adjacent picture of an S picture and the S picture are not continuous is not considered as an error.

Abstract translation: 在通过对多个编码信号进行编码来生成与每个图像相对应的编码信号的图像编码方法中，能够切换多个编码信号的切换图像和切换图像的后续图像可以仅指一组图像 同时在编码信号中。 更具体地说，S图像和S图像的相邻图像的图像号不连续的情况不被认为是错误。

公开(公告)号：US08660192B2

公开(公告)日：2014-02-25

申请号：US13461237

申请日：2012-05-01

Applicant: Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

Inventor： Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N7/50

CPC classification number: G06T7/20 ,  G06T1/60 ,  G09G5/18 ,  G09G2360/12 ,  H04N19/126 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/52 ,  H04N19/55 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406 ,  H04N21/44004

Abstract: A picture encoding method of the present invention is a picture encoding method of predictively encoding an input picture with reference to pictures stored in a picture buffer, decoding the encoded input picture, judging whether or not the decoded picture is a picture for reference and whether or not the decoded picture is a picture for output which needs to be stored until its display time, and storing, in the picture buffer, the picture for reference and the picture for output based on the determination result.

Abstract translation: 本发明的图像编码方法是参照存储在图像缓冲器中的图像对编码输入图像进行预测编码的图像编码方法，对经编码的输入图像进行解码，判断解码图像是否为参照图像， 解码图像不是直到其显示时间需要存储的用于输出的图像，并且基于确定结果将图像缓冲器存储在参考图像和图像中以用于输出。

公开(公告)号：US08406308B2

公开(公告)日：2013-03-26

申请号：US12761493

申请日：2010-04-16

Applicant: Masayoshi Tojima ,  Masayasu Iguchi ,  Kiyofumi Abe ,  Hiroaki Toida ,  Takahiro Nishi

Inventor： Masayoshi Tojima ,  Masayasu Iguchi ,  Kiyofumi Abe ,  Hiroaki Toida ,  Takahiro Nishi

IPC: H04N7/32

CPC classification number: H04N19/00006 ,  H03M7/4006 ,  H04N19/10 ,  H04N19/40 ,  H04N19/70 ,  H04N19/89 ,  H04N19/91

Abstract: An encoding device encoding binary signals using arithmetic-encoding. The encoding device includes a binarization unit binarizing multivalued syntax elements in order to generate the binary signals. The generated binary signals are stored on an intermediate buffer. Further, the encoding device includes an arithmetic-encoding unit performing the arithmetic-encoding on the binary signals stored on the intermediate buffer. Additionally, the generated binary signals are binary representations of values of the multivalued syntax elements.

Abstract translation: 使用算术编码对二进制信号进行编码的编码装置。 编码装置包括二值化单元，二值化多值语法元素以便生成二进制信号。 生成的二进制信号存储在中间缓冲器上。 此外，编码装置包括对存储在中间缓冲器上的二进制信号执行算术编码的算术编码单元。 另外，生成的二进制信号是多值语法元素的值的二进制表示。

公开(公告)号：US08396132B2

公开(公告)日：2013-03-12

申请号：US12724809

申请日：2010-03-16

Applicant: Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

IPC: H04N11/02

CPC classification number: H04N19/00024 ,  H04N19/105 ,  H04N19/114 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/156 ,  H04N19/162 ,  H04N19/164 ,  H04N19/177 ,  H04N19/51 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61

Abstract: A moving picture coding apparatus (10a) according to the present invention includes a level analyzer (100a) that decides the maximum number of intra frame pixels which can be coded (Nfpx) and the maximum number of storage pixels which can be stored in a picture memory of a decoding apparatus (Nspx) on the basis of a level identifier (Lst) indicating a coding level that is designated by the user, thereby judging whether coding of an input image is possible or not and calculating the maximum number of reference pictures (Nrpn) as the number of reference candidate pictures which can be referred to at inter picture prediction coding, on the basis of the maximum number of intra frame pixels (Nfpx) and the input image size (the number of vertical pixels (Nhpx) and the number of horizontal pixels (Nwpx)). A decoding apparatus to which a bit stream from the moving picture coding apparatus (10a) is supplied can always decode the bit stream satisfactorily, and perform inter picture prediction decoding corresponding to the inter picture prediction coding on the coding end. Consequently, memory areas of a coding apparatus and a decoding apparatus that are adapted to a coding method in which there is no restraint on the capacity of the memory area can be designed.

Abstract translation: 根据本发明的运动图像编码装置（10a）包括：电平分析器（100a），其决定可编码的帧内像素的最大数目（Nfpx）和可以存储在图像中的最大存储像素数 基于指示用户指定的编码电平的电平识别符（Lst），解码装置（Nspx）的存储器，从而判断输入图像的编码是否可行，并且计算参考图像的最大数量（ Nrpn）作为帧间预测编码时可参照的参考候选图像的数量，基于帧内像素的最大数目（Nfpx）和输入图像大小（垂直像素数（Nhpx））和 水平像素数（Nwpx））。 提供来自运动图像编码装置（10a）的比特流的解码装置可以令人满意地解码比特流，并且对编码结束中的帧间预测编码执行帧间预测解码。 因此，可以设计适合于对存储区域的容量没有约束的编码方法的编码装置和解码装置的存储区域。

公开(公告)号：US08290286B2

公开(公告)日：2012-10-16

申请号：US12240379

申请日：2008-09-29

Applicant: Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

IPC: G06K9/36 ,  H04N7/12 ,  H03M7/40

CPC classification number: G06T9/004 ,  H04N19/105 ,  H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61

Abstract: The method includes the following units: a coefficient number detecting unit (109) for detecting the number of coefficients which has a value other than 0 for each block according to the generated coefficient, a coefficient number storing unit (110) for storing the number of coefficients detected, a coefficient number coding unit (111) for selecting a table for variable length coding based on the numbers of coefficients in the coded blocks located on the periphery of a current block to be coded with reference to the selected table for variable length coding so as to perform variable length coding for the number of coefficients.

公开(公告)号：US08290049B2

公开(公告)日：2012-10-16

申请号：US12766254

申请日：2010-04-23

Applicant: Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N11/02

CPC classification number: H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/127 ,  H04N19/136 ,  H04N19/137 ,  H04N19/159 ,  H04N19/16 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/70

Abstract: When a block (MB22) of which motion vector is referred to in the direct mode contains a plurality of motion vectors, 2 motion vectors MV23 and MV24, which are used for inter picture prediction of a current picture (P23) to be coded, are determined by scaling a value obtained from averaging the plurality of motion vectors or selecting one of the plurality of the motion vectors.

Abstract translation: 当以直接模式参考运动矢量的块（MB22）包含多个运动矢量时，用于要编码的当前图像（P23）的帧间预测的2个运动矢量MV23和MV24是 通过缩放从多个运动矢量的平均得到的值或选择多个运动矢量之一来确定。

公开(公告)号：US08270492B2

公开(公告)日：2012-09-18

申请号：US12300243

申请日：2007-04-24

Applicant: Hiroshi Ikeda ,  Kiyofumi Abe

Inventor： Hiroshi Ikeda ,  Kiyofumi Abe

IPC: H04N7/12 ,  H04N11/02

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/433 ,  H04N19/44 ,  H04N19/51 ,  H04N19/58 ,  H04N19/61 ,  H04N19/895

Abstract: Provided is a moving picture decoding device (100) including a direct mode availability judging unit (109), when a decoding target block should be decoded in a temporal direct mode, judging whether or not a reference picture for a decoded picture, which is in a vicinity of the decoding target block in terms of display time, is usable as a forward reference picture for the decoding target block. Further, the moving picture decoding device (100) includes a substitute process performing unit (110) decoding the decoding target block in the temporal direct mode using a picture other than the reference picture, or decoding the decoding target block in other encoding mode.

Abstract translation: 提供了一种包括直接模式可用性判断单元（109）的运动图像解码装置（100），当解码目标块应当以时间直接模式进行解码时，判断解码图像的参考图像是否在 在显示时间方面的解码对象块的附近，可用作解码对象块的前向参考图像。 此外，运动图像解码装置（100）具有替代处理执行部（110），使用除了参照图像之外的图像，以时间直接模式对解码对象块进行解码，或者以其他编码模式解码解码对象块。