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    • 66. 发明申请
    • Transcoding device and transcoding method
    • 转码设备和转码方法
    • US20100098170A1
    • 2010-04-22
    • US12588409
    • 2009-10-14
    • Kimihiko KazuiYoshihiro TerashimaNoriaki TsukudaAkira Nakagawa
    • Kimihiko KazuiYoshihiro TerashimaNoriaki TsukudaAkira Nakagawa
    • H04N7/26
    • H04N19/40H04N19/139H04N19/176H04N19/433H04N19/56H04N19/61
    • A transcoding device includes a decoding unit that decodes both motion vectors of macroblocks and images from encoded images in a first encoding format; a first decoded image storing unit that stores therein the decoded motion vectors of macroblocks and the decoded images; a vector searching unit that searches for motion vectors of macroblocks in a second encoding format by using the decoded images stored in the first decoded image storing unit as reference images and by using the decoded motion vectors stored in the first decoded image storing unit; and a motion compensating unit that reads, from the first decoded image storing unit, areas in the decoded images, which are indicated by the motion vectors for which the vector searching unit has searched, and performs motion compensation by using the areas in the decoded images and the motion vectors for which the vector searching unit has searched.
    • 代码转换装置包括解码单元,其以第一编码格式对来自编码图像的宏块运动矢量和图像进行解码; 第一解码图像存储单元,其中存储有解码的宏块和解码图像的运动矢量; 矢量搜索单元,通过使用存储在第一解码图像存储单元中的解码图像作为参考图像并通过使用存储在第一解码图像存储单元中的解码运动矢量来搜索第二编码格式的宏块的运动矢量; 以及运动补偿单元,其从第一解码图像存储单元读取由矢量搜索单元搜索的运动矢量指示的解码图像中的区域,并且通过使用解码图像中的区域来执行运动补偿 以及向量搜索单元搜索到的运动矢量。
    • 68. 发明申请
    • Method, apparatus, and system for processing moving image
    • 用于处理运动图像的方法,装置和系统
    • US20090238261A1
    • 2009-09-24
    • US12292020
    • 2008-11-10
    • Susarla Lalitha BhavaniAkira NakagawaShunsuke Kobayashi
    • Susarla Lalitha BhavaniAkira NakagawaShunsuke Kobayashi
    • H04N5/917
    • H04N19/573H04N19/70
    • A moving image processing system includes an encoding apparatus encoding a moving image by encoding a picture order count (POC) while inserting a recovery point, and a decoding apparatus decoding the moving image encoded by the encoding apparatus. The encoding apparatus includes an insertion permission/rejection determining unit that determines whether a decoded frame is a reference frame and its frame number from an instantaneous decoding refresh frame is a positive integer times as large as a number of reference frames within a POC cycle, and a recovery point inserting unit that inserts the recovery point into the frame depending on a result of determination by the insertion permission/rejection determining unit. The decoding apparatus includes a POC decoding unit that decodes the POC by executing an initializing process such that the frame number within the POC cycle used in decoding the POC becomes zero, when decoding by random accessing is started.
    • 运动图像处理系统包括:通过编码图像顺序计数(POC)同时插入恢复点来编码运动图像的编码装置;以及解码装置,对由编码装置编码的运动图像进行解码。 编码装置包括:插入许可/拒绝确定单元,其确定解码帧是否是参考帧,并且其瞬时解码刷新帧的帧号是POC周期内的参考帧的数目的正整数倍;以及 恢复点插入单元,其根据插入允许/拒绝判定单元的确定结果将恢复点插入到帧中。 该解码装置包括POC解码单元,其通过执行初始化处理来解码POC,使得当通过随机访问解码开始时,用于解码POC的POC周期内的帧号变为零。
    • 69. 发明申请
    • Encoding apparatus, decoding apparatus, encoding method, and decoding method
    • 编码装置,解码装置,编码方法和解码方法
    • US20090232199A1
    • 2009-09-17
    • US12292690
    • 2008-11-24
    • Shunsuke KobayashiAkira NakagawaLalitha Bhavani Susarla
    • Shunsuke KobayashiAkira NakagawaLalitha Bhavani Susarla
    • H04N7/26
    • H04N19/00H04N19/46H04N19/68H04N19/70H04N19/89
    • An encoding apparatus encodes image data using a picture order count (POC) that indicates a display order of a picture. The encoding apparatus includes a remainder calculating unit that calculates a remainder by dividing an absolute frame number counted from an instantaneous decoding refresh (IDR) picture by a divisor which is a number of reference frames in one POC cycle, and a remainder code converting unit that coverts the remainder calculated by the remainder calculating unit into a code. A decoding apparatus decodes image data using the POC. The decoding apparatus includes a remainder extracting unit that, when random access decoding is performed, extracts a remainder by decoding a remainder code added to a picture at a random decoding start position, and an initializing unit that initializes an input value of a decoding process for the POC, by using the remainder extracted by the remainder extracting unit.
    • 编码装置使用指示图像的显示顺序的图像顺序计数(POC)对图像数据进行编码。 编码装置包括余数计算单元,该余数计算单元通过将从瞬时解码刷新(IDR)图像计数的绝对帧数除以一个POC周期中的参考帧的数目的除数和余数代码转换单元来计算余数, 将由余数计算单元计算出的剩余量覆盖为代码。 解码装置使用POC解码图像数据。 解码装置包括:余数提取单元,当执行随机存取解码时,通过对在随机解码开始位置添加到图像的余数码进行解码来提取余数;以及初始化单元,用于初始化解码处理的输入值, 通过使用由剩余提取单元提取的余数来生成POC。