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1. 发明申请

WO2015004879A1 IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, RECORDING MEDIUM AND PROGRAM, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND RECORDING MEDIUM AND PROGRAM 审中-公开
标题翻译：图像编码装置，图像编码方法，记录介质和程序，图像解码装置，图像解码方法和记录介质和程序
公开(公告)号：WO2015004879A1
公开(公告)日：2015-01-15
申请号：PCT/JP2014/003506
申请日：2014-07-01
申请人： CANON KABUSHIKI KAISHA
发明人： MAEDA, Mitsuru , SHIMA, Masato
IPC分类号： H04N19/30 , H04N19/167 , H04N19/187 , H04N19/105
CPC分类号： H04N19/30 , H04N19/105 , H04N19/136 , H04N19/167 , H04N19/187 , H04N19/44 , H04N19/90
摘要： The present invention relates to specification of a tile capable of being independently processed to process a certain area at high speed in encoding and decoding of tiles resulting from division of an image in hierarchical coding of the image. An image encoding apparatus that performs the hierarchical coding of an input image with multiple layers includes an acquiring unit and an encoding unit. The acquiring unit acquires a first image generated from the input image and a second image having resolution different from that of the first image. In the encoding of a first area in the first image acquired by the acquiring unit, the encoding unit performs the encoding using a second area existing at the relatively same position as that of the first area in the first image in the second image as a reference image.
摘要翻译：本发明涉及一种能够被独立处理以便在图像的分层编码中分割图像的编码和解码中高速处理特定区域的瓦片的规格。执行具有多层的输入图像的分层编码的图像编码装置包括获取单元和编码单元。获取单元获取从输入图像生成的第一图像和具有与第一图像的分辨率不同的分辨率的第二图像。在由获取单元获取的第一图像中的第一区域的编码中，编码单元使用存在于与第二图像中的第一图像中的第一区域相对相同位置的第二区域作为参考来执行编码图片。

2. 发明申请

WO2014087641A1 IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD AND PROGRAM, IMAGE DECODING DEVICE, AND IMAGE DECODING METHOD AND PROGRAM 审中-公开
标题翻译：图像编码设备，图像编码方法和程序，图像解码设备和图像解码方法和程序
公开(公告)号：WO2014087641A1
公开(公告)日：2014-06-12
申请号：PCT/JP2013/007089
申请日：2013-12-03
申请人： CANON KABUSHIKI KAISHA
发明人： SHIMA, Masato , MAEDA, Mitsuru
IPC分类号： H04N21/63 , H04N21/2343 , H04N19/39 , H04N19/46 , H04N19/61 , H04N19/186 , H04N19/176 , H04N19/136 , H04N19/124 , H04N19/14 , H04N19/463 , H04N19/98 , H04N19/184
CPC分类号： H04N19/124 , H04N19/136 , H04N19/14 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/98
摘要： A luminance signal of an image and a chrominance signal of a bit depth different from that of the luminance signal is input, a luminance quantization parameter used to quantize the input luminance signal in block units is generated, a chrominance quantization parameter used to quantize the input chrominance signal in block units within a range depending on the luminance quantization parameter is generated, the input luminance signal is quantized by the luminance quantization parameter, the chrominance signal is quantized by the chrominance quantization parameter, and the range is changed depending on the difference between the bit depth of the luminance signal and the chrominance signal during the generation of the chrominance quantization parameter.
摘要翻译：输入与亮度信号不同的位深度的图像的亮度信号和色度信号，产生用于以块为单位量化输入亮度信号的亮度量化参数，用于量化输入的色度量化参数产生根据亮度量化参数的范围内的块单位的色度信号，通过亮度量化参数量化输入亮度信号，色度信号由色度量化参数量化，并且范围根据在生成色度量化参数期间亮度信号的位深度和色度信号。

3. 发明申请

WO2013089264A1 IMAGE QUANTIZATION APPARATUS, METHOD AND PROGRAM, AND IMAGE INVERSE QUANTIZATION APPARATUS, METHOD AND PROGRAM 审中-公开
标题翻译：图像量化设备，方法和程序，以及图像反向量化设备，方法和程序
公开(公告)号：WO2013089264A1
公开(公告)日：2013-06-20
申请号：PCT/JP2012/082593
申请日：2012-12-10
申请人： CANON KABUSHIKI KAISHA
发明人： MAEDA, Mitsuru
IPC分类号： H04N7/50
CPC分类号： H04N19/463 , H04N19/126 , H04N19/136 , H04N19/172
摘要： An image processing apparatus includes the following configuration. An image inverse quantization apparatus that inversely quantizes quantization coefficients by using quantization matrices at a plurality of sizes to calculate coefficients includes a first default quantization matrix holding unit configured to hold a quantization matrix adapted to a block size of n × m (n and m are positive integers that are higher than or equal to 2) as a first default quantization matrix, a scaling change unit configured to calculate a quantization matrix adapted to a block size of p × q (p and q are positive integers that are higher than or equal to 2) from the quantization matrix at the block size of n × m, and a second default quantization matrix holding unit configured to hold the quantization matrix a scaling of which is changed by the scaling change unit as a second default quantization matrix.
摘要翻译：图像处理装置包括以下结构。一种通过使用多个尺寸的量化矩阵对量化系数进行逆量化以计算系数的图像逆量化装置包括：第一默认量化矩阵保持单元，被配置为保持适合于n×m（n和m的块大小）的量化矩阵大于或等于2的正整数）作为第一默认量化矩阵;缩放改变单元，被配置为计算适合于p×q的块大小的量化矩阵（p和q是高于或等于的正整数）到2），以及第二默认量化矩阵保持单元，被配置为保存其缩放被缩放改变单元改变的量化矩阵作为第二默认量化矩阵。

4. 发明申请

WO2005088976A1 MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, CONTROL METHOD THEREFOR, COMPUTER PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM 审中-公开
标题翻译：移动图像编码装置，移动图像解码装置，其控制方法，计算机程序和计算机可读存储介质
公开(公告)号：WO2005088976A1
公开(公告)日：2005-09-22
申请号：PCT/JP2005/004850
申请日：2005-03-11
申请人： CANON KABUSHIKI KAISHA , SUZUKI, Masaki , MAEDA, Mitsuru
发明人： SUZUKI, Masaki , MAEDA, Mitsuru
IPC分类号： H04N7/30
CPC分类号： H04N19/63
摘要： In this invention, even if final code data is to be generated by selectively discarding code data for each bitplane, errors due to bitplane rounding down operation can be suppressed from being gradually accumulated in predicted data such as P- and B-pictures, thereby preventing a deterioration in image quality. For this purpose, a block segmentation unit (31) segments an input frame into a plurality of blocks, and supplies the respective blocks to a difference computing unit (32). The difference computing unit (32) outputs the blocks to a DWT unit (33) without any change when the intra-frame coding mode is set. When the inter-frame coding mode is set, the difference computing unit (32) outputs the result obtained by computing a difference from predicted data from a motion compensation unit (42) to the DWT unit (33). The frequency component data obtained by the DWT unit (33) and a quantization unit (34) is entropy-coded by an entropy coding unit (35), and a bitplane formed by bit information at the bit position of each component value is coded. A bitplane round-down unit (36) rounds down the code data of bitplanes from the least significant position to an upper bit position such that the resultant code amount becomes equal to or less than a target code amount. A code forming unit then generates code data. Only when the intra-frame coding mode is set, a dequantization unit (39) and inverse DWT unit (40) are executed to update a frame memory (41).
摘要翻译：在本发明中，即使通过选择性地丢弃每个位平面的代码数据来生成最终代码数据，也可以抑制由于位平面舍入运算引起的错误，从而在诸如P图像和B-图像的预测数据中逐渐累积，从而防止图像质量下降。为此，块分割单元（31）将输入帧分割为多个块，并将各个块提供给差分计算单元（32）。当设置帧内编码模式时，差分计算单元（32）将块输出到DWT单元（33）而没有任何改变。当帧间编码模式被设置时，差分计算单元（32）将通过计算来自运动补偿单元（42）的预测数据的差异获得的结果输出到DWT单元（33）。由DWT单元（33）和量化单元（34）获得的频率分量数据由熵编码单元（35）进行熵编码，并且对每个分量值的位位置处的位信息形成的位平面进行编码。位平面舍入单元（36）将位平面的代码数据从最低有效位置向下舍入，使得所得到的代码量变得等于或小于目标代码量。代码形成单元然后生成代码数据。仅当帧内编码模式被设置时，执行去量化单元（39）和反向DWT单元（40）来更新帧存储器（41）。

5. 发明申请

WO2013073138A1 MOTION VECTOR CODING APPARATUS, METHOD AND PROGRAM 审中-公开
标题翻译：运动矢量编码装置，方法和程序
公开(公告)号：WO2013073138A1
公开(公告)日：2013-05-23
申请号：PCT/JP2012/007171
申请日：2012-11-08
申请人： CANON KABUSHIKI KAISHA
发明人： MAEDA, Mitsuru
IPC分类号： H04N19/00 , H04N7/50
CPC分类号： H04N19/186 , H04N19/176 , H04N19/198 , H04N19/52
摘要： A motion vector coding apparatus includes a motion vector generation unit configured to generate a motion vector of a coding target block in a coding target color plane, an inter-plane motion vector extraction unit configured to extract a motion vector of an inter-plane reference block which is a block in a color plane different from the coding target color plane and at the same position as that of the coding target block; a predicted motion vector calculation unit configured to calculate a predicted motion vector from the motion vector of the inter-plane reference block, a motion vector error calculation unit configured to calculate a motion vector error from the motion vector of the coding target block and the predicted motion vector, and a motion vector difference coding unit configured to code the motion vector error.
摘要翻译：一种运动矢量编码装置，包括：运动矢量生成部，生成编码对象色平面中的编码对象块的运动矢量;面间运动矢量提取部，被配置为提取平面内参照块的运动矢量其是与编码目标色彩平面不同的颜色平面中的与编码对象块的位置相同的块; 预测运动矢量计算单元，被配置为从所述平面间参考块的运动矢量计算预测运动矢量;运动矢量误差计算单元，被配置为根据所述编码对象块的运动矢量和所述预测运动矢量运算矢量运动矢量，以及被配置为对运动矢量误差进行编码的运动矢量差编码单元。

6. 发明申请

WO2012096184A1 IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, PROGRAM, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND PROGRAM 审中-公开
标题翻译：图像编码装置，图像编码方法，程序，图像解码装置，图像解码方法和程序
公开(公告)号：WO2012096184A1
公开(公告)日：2012-07-19
申请号：PCT/JP2012/000154
申请日：2012-01-12
申请人： CANON KABUSHIKI KAISHA , MAEDA, Mitsuru
发明人： MAEDA, Mitsuru
IPC分类号： H04N7/30
CPC分类号： H04N19/96 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/46
摘要： An image coding apparatus includes a setting unit configured to set a coding control parameter, a first transform unit configured to transform a frequency of pixel data of a block having a first size, and execute transform by substituting transform coefficients with predetermined values except a part of the transform coefficients, a second transform unit configured to transform a frequency of pixel data of a block having a second size smaller than the first size, a block size determination unit configured to limit use of the first transform unit based on the coding control parameter, and a coding unit configured to control and code one of outputs of the first transform unit and the second transform unit based on a determined block size.
摘要翻译：一种图像编码装置包括：设置单元，用于设置编码控制参数;第一变换单元，被配置为变换具有第一尺寸的块的像素数据的频率，并且通过用除了一部分的变换系数，第二变换单元，被配置为变换具有小于第一大小的第二尺寸的块的像素数据的频率;块大小确定单元，被配置为基于编码控制参数来限制第一变换单元的使用，以及编码单元，被配置为基于确定的块大小来控制和编码第一变换单元和第二变换单元的输出之一。

7. 发明申请

WO2014103292A1 IMAGE CODING DEVICE, IMAGE CODING METHOD, PROGRAM THEREOF, IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM THEREOF 审中-公开
标题翻译：图像编码装置，图像编码方法，程序，图像解码装置，图像解码方法及其程序
公开(公告)号：WO2014103292A1
公开(公告)日：2014-07-03
申请号：PCT/JP2013/007563
申请日：2013-12-25
申请人： CANON KABUSHIKI KAISHA
发明人： MAEDA, Mitsuru , SHIMA, Masato
IPC分类号： H04N19/186 , H04N19/59 , H04N19/105
CPC分类号： H04N19/895 , H04N19/103 , H04N19/107 , H04N19/124 , H04N19/162 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/50 , H04N19/59 , H04N19/91
摘要： A linear interpolation filter used for intra-prediction is applied to not only a luminance signal, but also a chrominance signal. A noise like contouring, which may occur in the chrominance signal, is reduced by performing control independently on the chrominance signal. Also, only a square block has been supported in related art. However, a rectangular block is also supported. Accordingly, 4:2:2 can be applied.
摘要翻译：用于帧内预测的线性内插滤波器不仅应用于亮度信号，还应用于色度信号。通过对色度信号进行独立的控制，减少了可能发生在色度信号中的像轮廓的噪声。此外，相关技术中仅支持方块。然而，也支持矩形块。因此，可以应用4：2：2。

8. 发明申请

WO2014002495A1 PARALLEL PROCESSING OF IMAGE TILES 审中-公开
标题翻译：图像平行平行处理
公开(公告)号：WO2014002495A1
公开(公告)日：2014-01-03
申请号：PCT/JP2013/004000
申请日：2013-06-26
申请人： CANON KABUSHIKI KAISHA
发明人： MAEDA, Mitsuru , OKAWA, Koji
IPC分类号： H04N7/26
CPC分类号： H04N19/436 , H04N19/70
摘要： An image encoding format includes a profile indicating a combination of processes which an image decoding apparatus is capable of decoding and a level indicating a range of a parameter which the image decoding apparatus is capable of decoding. The image decoding apparatus includes a decoding unit that decodes the image encoding format on the basis of a code that indicates whether parallel processing of the decoding processes in each tile is enabled depending on the profile.
摘要翻译：图像编码格式包括指示图像解码装置能够解码的处理的组合的简档和指示图像解码装置能够进行解码的参数的范围的级别。该图像解码装置包括解码单元，该解码单元基于指示是否根据该轮廓来启用每个瓦片中的解码处理的并行处理的代码来对图像编码格式进行解码。

9. 发明申请

WO2013153761A1 IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND PROGRAM 审中-公开
标题翻译：图像解码设备，图像解码方法和程序
公开(公告)号：WO2013153761A1
公开(公告)日：2013-10-17
申请号：PCT/JP2013/002167
申请日：2013-03-29
申请人： CANON KABUSHIKI KAISHA
发明人： SHIMA, Masato , MAEDA, Mitsuru
IPC分类号： H04N7/26
CPC分类号： H04N19/98 , H04N19/103 , H04N19/126 , H04N19/159 , H04N19/182 , H04N19/44
摘要： An image decoding method includes decoding blocks coded in a first coding mode where a prediction is conducted and decoding blocks coded in a second coding mode without the prediction, in which the decoding the blocks coded in the first coding mode includes generating a first reproduction image from reproduced prediction errors and prediction results, and the decoding the blocks coded in the second coding mode includes generating a second reproduction image by, when a bit depth of pixel information of the block coded in the second coding mode is smaller than that of an output image, reproducing output pixel tentative values through pixel information bit shift on the basis of a difference between the bit depth of the output image and that of the pixel information and correcting the output pixel tentative values by the difference to calculate output pixel values.
摘要翻译：一种图像解码方法，包括以不进行预测的第二编码模式进行编码的第一编码模式和第一编码模式进行编码的解码块，其中以第一编码模式编码的块进行解码，包括：生成第一再现图像，再现预测误差和预测结果，并且对以第二编码模式编码的块进行解码包括：当以第二编码模式编码的块的像素信息的比特深度小于输出图像的比特深度时，生成第二再现图像基于输出图像的比特深度与像素信息的比特深度之间的差异，通过像素信息比特移位再现输出像素暂定值，并且通过差值校正输出像素暂定值以计算输出像素值。

10. 发明申请

WO2012120823A1 IMAGE CODING APPARATUS, METHOD FOR CODING IMAGE, PROGRAM THEREFOR, IMAGE DECODING APPARATUS, METHOD FOR DECODING IMAGE, AND PROGRAM THEREFOR 审中-公开
标题翻译：图像编码装置，图像编码方法，其程序，图像解码装置，解码图像的方法及其程序
公开(公告)号：WO2012120823A1
公开(公告)日：2012-09-13
申请号：PCT/JP2012/001319
申请日：2012-02-27
申请人： CANON KABUSHIKI KAISHA , MAEDA, Mitsuru
发明人： MAEDA, Mitsuru
IPC分类号： H04N7/26
CPC分类号： H04N19/50 , H04N19/124 , H04N19/167 , H04N19/176 , H04N19/436 , H04N19/463 , H04N19/61 , H04N19/91
摘要： An image processing apparatus includes a division unit configured to divide an input image into a plurality of subblocks subjected to quantization control, a subblock quantization parameter calculation unit configured to calculate a quantization parameter of each of the subblocks, a basic block quantization parameter calculation unit configured to set a basic block including at least two subblocks and to calculate a quantization parameter of the basic block, a difference value calculation unit configured to calculate a difference value between the quantization parameter of the basic block and the quantization parameter of each subblock included in the basic block, and a difference value coding unit configured to code the difference value.
摘要翻译：图像处理装置包括：分割单元，被配置为将输入图像分割成经过量化控制的多个子块;子块量化参数计算单元，被配置为计算每个子块的量化参数;基本块量化参数计算单元，设置包括至少两个子块的基本块并计算基本块的量化参数;差值计算单元，被配置为计算基本块的量化参数与包括在基本块中的每个子块的量化参数之间的差值基本块，以及被配置为对该差值进行编码的差值编码单元。

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