Moving picture coding method and moving picture decoding method
    81.
    发明授权
    Moving picture coding method and moving picture decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号:US07664178B2

    公开(公告)日:2010-02-16

    申请号:US11976826

    申请日:2007-10-29

    IPC分类号: H04N7/12 H04N11/02

    摘要: 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.

    摘要翻译: 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。

    Device, method and program for generating interpolation frame
    82.
    发明授权
    Device, method and program for generating interpolation frame 有权
    用于生成插值帧的装置,方法和程序

    公开(公告)号:US07564902B2

    公开(公告)日:2009-07-21

    申请号:US10716038

    申请日:2003-11-19

    IPC分类号: H04N7/12

    CPC分类号: H04N7/014 G06T9/004

    摘要: An interpolation frame generation device that generates an interpolation frame that interpolates image frames that are obtained by decoding a coded image signal that is coded by motion compensation, includes a motion vector deriving unit and an interpolation frame generating unit. The motion vector deriving unit acquires a motion compensation vector of a coded block that forms the coded image signal. The interpolation frame generating unit generates the interpolation frame in accordance with the motion vector of the image block that forms an image frame by using the motion compensation vector of the coded block as the motion vector of the image block.

    摘要翻译: 内插帧生成装置具有运动矢量导出部和内插帧生成部,生成插补帧,该内插帧内插通过对通过运动补偿编码的编码图像信号进行解码而获得的图像帧。 运动矢量导出单元获取形成编码图像信号的编码块的运动补偿矢量。 内插帧生成单元通过使用编码块的运动补偿矢量作为图像块的运动矢量,根据构成图像帧的图像块的运动矢量生成插值帧。

    Picture coding apparatus, picture decoding apparatus and the methods
    84.
    发明申请
    Picture coding apparatus, picture decoding apparatus and the methods 有权
    图像编码装置,图像解码装置及方法

    公开(公告)号:US20080181297A1

    公开(公告)日:2008-07-31

    申请号:US12071475

    申请日:2008-02-21

    IPC分类号: H04N7/26

    摘要: A weighting factor mode determination unit determines whether to code an interlaced picture in a field mode or a frame mode, based on a value of a flag “AFF” indicating whether or not to switch between the field mode and the frame mode on a block-by-block basis and notifies switches and a multiplexing unit of the determined mode. The switches select either the field mode or the frame mode according to the notified mode. A field weighting factor coding unit or a frame weighting factor coding unit performs respectively the coding of respective weighting factors when the respective modes are selected.

    摘要翻译: 加权系数模式确定单元基于在块模式决定单元中的表示是否在场模式和帧模式之间切换的标志“AFF”的值来确定是否以场模式或帧模式对隔行扫描图像进行编码, 并通知所述确定模式的开关和多路复用单元。 交换机根据通知模式选择现场模式或帧模式。 当选择各个模式时,场权重因子编码单元或帧加权因子编码单元分别执行各个加权因子的编码。

    Moving picture coding method and moving picture decoding method
    86.
    发明申请
    Moving picture coding method and moving picture decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号:US20080069246A1

    公开(公告)日:2008-03-20

    申请号:US11980618

    申请日:2007-10-31

    IPC分类号: H04N11/04

    摘要: A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.

    摘要翻译: 一种用于在逐块基础上自适应地切换帧编码和场编码的图像编码的运动图像编码方法包括:确定用于字段编码的参考索引的最大数量,用于指定当时将被引用的字段 使用用于帧编码的参考索引的最大数目来指定帧编码时将要参考的帧的场编码; 并且在所确定的最大数量的范围内,使用用于指定将要被指定的帧的帧编码的参考索引,向字段分配用于指定字段编码时要参考的字段的字段编码的参考索引 在帧编码时参考。

    Variable length coding method and variable length decoding method
    88.
    发明授权
    Variable length coding method and variable length decoding method 有权
    可变长度编码方法和可变长度解码方法

    公开(公告)号:US07312731B2

    公开(公告)日:2007-12-25

    申请号:US11543857

    申请日:2006-10-06

    IPC分类号: H03M7/40

    摘要: An image decoding apparatus is provided with a unit operable to receive coded data including a coded run value and a coded level value, wherein the coded run value is obtained by coding a run value which indicates the number of continuous quantized coefficients, each having a zero value, and the coded level value is obtained by coding a level value which indicates a value of a quantized coefficient having a non-zero value; a unit operable to decode the coded run value to obtain a decoded level value; a unit operable to decode the coded level value to obtain a decoded level value; and a unit operable to obtain quantized coefficients of the block image from the decoded level value and the decoded run value, wherein the decoding of the coded run value is performed from a high frequency component toward a low frequency component, in accordance with information that represents a total number of undecoded quantized coefficients which have not been decoded.

    摘要翻译: 图像解码装置具有可操作以接收包括编码运行值和编码电平值的编码数据的单元,其中编码运行值是通过编码表示连续量化系数的运行值获得的,每个运行值具有零 值,并且通过对指示具有非零值的量化系数的值的电平值进行编码来获得编码电平值; 一个可操作的解码编码运行值以获得解码电平值的单元; 一个可操作的解码编码电平值以获得解码电平值的单元; 以及单元,用于根据解码的电平值和解码的运行值获得块图像的量化系数,其中根据代表的解码电平值和解码的运行值的信息,从高频分量向低频分量执行编码运行值的解码 尚未解码的未解码量化系数的总数。

    Decoding device, encoding device, interpolation frame creating system, integrated circuit device, decoding program, and encoding program
    90.
    发明申请
    Decoding device, encoding device, interpolation frame creating system, integrated circuit device, decoding program, and encoding program 有权
    解码装置,编码装置,插值帧创建系统,集成电路装置,解码程序和编码程序

    公开(公告)号:US20070127572A1

    公开(公告)日:2007-06-07

    申请号:US10587939

    申请日:2005-01-12

    IPC分类号: H04N11/02

    摘要: An object of the present invention is to provide a decoding device, an encoding device, an interpolation frame creating system, an integrated circuit device, a decoding program and an encoding program for creating interpolation frames at a high precision with an encoding efficiency being improved. The decoding device (12) includes a decoding section (70), a motion vector detection section (79), and an interpolation frame creation section (80). The decoding section (70) decodes an encoded image signal (d211) which is obtained by encoding image frames which form an image signal (d210) and additional information (d231) for creating an interpolation frame which interpolates the image frames based on a motion vector (MV48) which is a motion vector between the image frames. The motion vector detection section (79) detects a motion vector (MV90) which is a motion vector between decoded image frames (d260). The interpolation frame creation section (80) creates an interpolation frame based on the motion vector (MV90), the decoded image frame (d259), and the decoded additional information (d252).

    摘要翻译: 本发明的目的是提供一种解码装置,编码装置,内插帧创建系统,集成电路装置,解码程序和编码程序,用于以提高编码效率的高精度创建插值帧。 解码装置(12)包括解码部(70),运动矢量检测部(79)和内插帧生成部(80)。 解码部分(70)对通过对形成图像信号(d 210)的图像帧进行编码而得到的编码图像信号(d 211)和用于创建内插帧的附加信息(d 231) 作为图像帧之间的运动矢量的运动矢量(MV 48)。 运动矢量检测部(79)检测作为解码图像帧之间的运动矢量的运动矢量(MV90)(d 260)。 内插帧创建部(80)基于运动矢量(MV 90),解码图像帧(d 259)和解码附加信息(d 252)创建内插帧。