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    • 5. 发明申请
    • IMAGE DISTRIBUTION APPARATUS, COMMUNICATION TERMINAL APPARATUS, AND CONTROL METHOD THEREOF
    • 图像分配装置,通信终端装置及其控制方法
    • US20090010552A1
    • 2009-01-08
    • US12133018
    • 2008-06-04
    • YOSHIO IIZUKATomoaki Kawai
    • YOSHIO IIZUKATomoaki Kawai
    • G06K9/46
    • H04N5/77G06T7/254G06T7/262H04N9/8047H04N9/8227H04N19/132H04N19/142
    • An image distribution apparatus divides image data of a single frame into a plurality of blocks, orthogonally transforms the blocks and calculates transformation coefficients, quantizes the calculated transformation coefficients, codes the quantized transformation coefficients, and distributes the coded image data. The image distribution apparatus acquires the quantized transformation coefficients, stores the acquired transformation coefficients in a storage unit, calculates differences between the transformation coefficients of a first frame and the transformation coefficients of a second frame stored in the storage unit in a unit of block, counts blocks whose difference values calculated above are equal to or greater than a predetermined value as changing blocks of the first frame, and determines that the first frame has changed when the counted number of blocks is equal to or greater than a predetermined value.
    • 图像分配装置将单个帧的图像数据分割为多个块,对块进行正交变换并计算变换系数,量化计算出的变换系数,对量化的变换系数进行编码,并分配编码图像数据。 图像分配装置获取量化变换系数,将获取的变换系数存储在存储单元中,以块为单位计算第一帧的变换系数和存储在存储单元中的第二帧的变换系数之间的差,计数 上述计算出的差分值等于或大于预定值的块作为改变第一帧的块,并且当计数的块数等于或大于预定值时,确定第一帧已经改变。
    • 6. 发明申请
    • IMAGE DISTRIBUTION APPARATUS, COMMUNICATION TERMINAL APPARATUS, AND CONTROL METHOD THEREOF
    • 图像分配装置,通信终端装置及其控制方法
    • US20070025623A1
    • 2007-02-01
    • US11470105
    • 2006-09-05
    • YOSHIO IIZUKATomoaki Kawai
    • YOSHIO IIZUKATomoaki Kawai
    • G06K9/36
    • H04N5/77G06T7/254G06T7/262H04N9/8047H04N9/8227H04N19/132H04N19/142
    • An image distribution apparatus divides image data of a single frame into a plurality of blocks, orthogonally transforms the blocks and calculates transformation coefficients, quantizes the calculated transformation coefficients, codes the quantized transformation coefficients, and distributes the coded image data. The image distribution apparatus acquires the quantized transformation coefficients, stores the acquired transformation coefficients in a storage unit, calculates differences between the transformation coefficients of a first frame and the transformation coefficients of a second frame stored in the storage unit in a unit of block, counts blocks whose difference values calculated above are equal to or greater than a predetermined value as changing blocks of the first frame, and determines that the first frame has changed when the counted number of blocks is equal to or greater than a predetermined value.
    • 图像分配装置将单个帧的图像数据分割为多个块,对块进行正交变换并计算变换系数,量化计算出的变换系数,对量化的变换系数进行编码,并分配编码图像数据。 图像分配装置获取量化变换系数,将获取的变换系数存储在存储单元中,以块为单位计算第一帧的变换系数和存储在存储单元中的第二帧的变换系数之间的差,计数 上述计算出的差分值等于或大于预定值的块作为改变第一帧的块,并且当计数的块数等于或大于预定值时,确定第一帧已经改变。
    • 10. 发明授权
    • Image distribution apparatus, communication terminal apparatus, and control method thereof
    • 图像分配装置,通信终端装置及其控制方法
    • US07738720B2
    • 2010-06-15
    • US12132987
    • 2008-06-04
    • Yoshio IizukaTomoaki Kawai
    • Yoshio IizukaTomoaki Kawai
    • G06K9/36G06K9/38
    • H04N5/77G06T7/254G06T7/262H04N9/8047H04N9/8227H04N19/132H04N19/142
    • An image distribution apparatus divides image data of a single frame into a plurality of blocks, orthogonally transforms the blocks and calculates transformation coefficients, quantizes the calculated transformation coefficients, codes the quantized transformation coefficients, and distributes the coded image data. The image distribution apparatus acquires the quantized transformation coefficients, stores the acquired transformation coefficients in a storage unit, calculates differences between the transformation coefficients of a first frame and the transformation coefficients of a second frame stored in the storage unit in a unit of block, counts blocks whose difference values calculated above are equal to or greater than a predetermined value as changing blocks of the first frame, and determines that the first frame has changed when the counted number of blocks is equal to or greater than a predetermined value.
    • 图像分配装置将单个帧的图像数据分割为多个块,对块进行正交变换并计算变换系数,量化计算出的变换系数,对量化的变换系数进行编码,并分配编码图像数据。 图像分配装置获取量化变换系数,将获取的变换系数存储在存储单元中,以块为单位计算第一帧的变换系数和存储在存储单元中的第二帧的变换系数之间的差,计数 上述计算出的差分值等于或大于预定值的块作为改变第一帧的块,并且当计数的块数等于或大于预定值时,确定第一帧已经改变。