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    • 73. 发明授权
    • Image signal coding method and apparatus, image signal transmission
method, and signal recording medium
    • 图像信号编码方法和装置,图像信号发送方法和信号记录介质
    • US6040865A
    • 2000-03-21
    • US991517
    • 1997-12-16
    • Motoki KatoNobuhiro IgiKazunori Yasuda
    • Motoki KatoNobuhiro IgiKazunori Yasuda
    • H04N5/92H03M7/30H03M7/36H04N5/00H04N19/107H04N19/136H04N19/176H04N19/186H04N19/196H04N19/423H04N19/46H04N19/50H04N19/503H04N19/51H04N19/513H04N19/61H04N19/625H04N19/65H04N19/70H04N19/85H04N7/32
    • H04N19/61
    • The present invention relates to an image signal coding apparatus and method, an image signal transmission method and a recording medium in which an input image signal is divided into a plurality of blocks and a reference image signal is used for carrying out a motion compensative prediction coding to each of the blocks. The present invention is characterized in that a reference image signal is used for each of the blocks to calculate: a motion vector prediction residue of a block for which a motion compensation is carried out; a residue of a block for which no motion compensation is carried out; and an average luminance value of pixel data within a block and a flatness value of the block. For each of the blocks, a magnitude of the aforementioned block motion vector prediction residue is compared to a magnitude of said block residue so that a result of this comparison is used to decide whether to carry out a motion compensation coding. In this process, the average luminance value and the flatness value of the block are used to switch between decision making region division types. According to a result of this decision, a motion compensative prediction coding is carried out for each of the blocks. Thus, even when a prediction residue is small on a flat portion of a image, it is possible to prevent generation of a fixed noise and improve the coding efficiency without deteriorating the image quality.
    • 图像信号编码装置及方法,图像信号发送方法以及记录介质技术领域本发明涉及图像信号编码装置和方法,图像信号发送方法以及记录介质,其中输入图像信号被分成多个块,参考图像信号用于执行运动补偿预测编码 到每个块。 本发明的特征在于,对每个块使用参考图像信号来计算:执行运动补偿的块的运动矢量预测残差; 不执行运动补偿的块的残差; 以及块内的像素数据的平均亮度值和块的平坦度值。 对于每个块,将上述块运动矢量预测残差的大小与所述块残差的幅度进行比较,以使得该比较的结果用于决定是否执行运动补偿编码。 在该处理中,块的平均亮度值和平坦度值用于在决策区域划分类型之间切换。 根据该决定的结果,针对每个块执行运动补偿预测编码。 因此,即使在图像的平坦部分上的预测残差较小的情况下,也可以防止产生固定噪声,提高编码效率,而不会降低图像质量。
    • 80. 发明申请
    • RECORDING APPARATUS, RECORDING METHOD, REPRODUCING APPARATUS, REPRODUCTION METHOD, PROGRAM, AND RECORDING/REPRODUCING APPARATUS
    • 记录装置,记录方法,再现装置,再现方法,程序和记录/再现装置
    • US20140098190A1
    • 2014-04-10
    • US14118429
    • 2012-05-17
    • Motoki KatoToshiya Hamada
    • Motoki KatoToshiya Hamada
    • H04N13/00
    • H04N13/161G11B20/10527G11B20/1262G11B27/105G11B2020/10611G11B2220/2541H04N5/772H04N9/8042H04N9/8205H04N9/8227H04N13/189H04N19/597
    • The present technology relates to a recording apparatus, a recording method, a reproducing apparatus, a reproducing method, a program, and a recording/reproducing apparatus that can provide reproduction control information to enable reproduction of a stream according to the reproduction capability. A recording apparatus according to a first aspect of the present technology includes a first generating unit that, as reproduction control information of a first video stream including a base stream obtained by encoding a predetermined image among a plurality of images having different viewing points and a dependent stream obtained by encoding other image, including a picture obtained by encoding a picture of the base stream as a reference image, generates information to which the same version information as version information of reproduction control information of a second video stream encoded using the same encoding method as an encoding method of the base stream is set and a recording control unit that records the first video stream and the reproduction control information of the first video stream on a recording medium.
    • 本技术涉及可以提供再现控制信息以根据再现能力再现流的记录装置,记录方法,再现装置,再现方法,程序和记录/再现装置。 根据本技术的第一方面的记录装置包括:第一生成单元,其作为包括通过对具有不同视点的多个图像中的预定图像进行编码而获得的基本流的第一视频流的再现控制信息和从属 通过编码其他图像获得的流,包括通过对基本流的图像进行编码而获得的图像作为参考图像,生成与使用相同编码方法编码的第二视频流的再现控制信息的版本信息相同的版本信息的信息 作为基本流的编码方法,以及记录控制单元,其将第一视频流和再现控制信息记录在记录介质上。