公开(公告)号：US20120128069A1

公开(公告)日：2012-05-24

申请号：US13388471

申请日：2010-08-04

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/32

CPC分类号： H04N19/436 ,  H04N19/11 ,  H04N19/42 ,  H04N19/61

摘要： The present invention relates an image processing apparatus and method able to realize parallelized or pipelined intra prediction while also improving coding efficiency.An intra prediction unit 74 conducts an intra prediction process on one or more target blocks corresponding to one or more block addresses determined by an address controller 75 in a processing order that differs from the H.264/AVC processing order, in intra prediction modes that use nearby pixels determined to be available by an nearby pixel availability determination unit 76. At this point, the intra prediction unit 74 conducts intra prediction on a plurality of blocks by pipeline processing or parallel processing, or conducts intra prediction on a single block, on the basis of a control signal from a pipeline/parallel processing controller 92. The present invention can be applied to image encoding apparatus that encode in the H.264/AVC format, for example.

摘要翻译： 本发明涉及一种能够实现并行化或流水线的帧内预测的图像处理装置和方法，同时也提高编码效率。 帧内预测单元74在与H.264 / AVC处理顺序不同的处理顺序中对与由地址控制器75确定的一个或多个块地址相对应的一个或多个块地址进行帧内预测处理，在帧内预测模式中 使用被附近的像素可用性确定单元76确定为可用的附近像素。此时，帧内预测单元74通过流水线处理或并行处理对多个块进行帧内预测，​​或者对单个块进行帧内预测， 来自流水线/并行处理控制器92的控制信号的基础。本发明可以应用于例如以H.264 / AVC格式编码的图像编码装置。

公开(公告)号：US20120121019A1

公开(公告)日：2012-05-17

申请号：US13264242

申请日：2010-04-22

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： H04N7/32

CPC分类号： H04N19/577 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/46 ,  H04N19/57 ,  H04N19/593 ,  H04N19/61

摘要： The present invention relates to an image processing device and method enabling second order prediction to be performed even in the event that adjacent pixels adjacent to a reference block exist outside an image frame.A reference adjacent pixel determining unit 83 receives input of determination results from a reference adjacent determining unit 77 regarding whether or not reference adjacent pixels exist within the image frame of a reference frame. In the event that reference adjacent pixels exist within the image frame of the reference frame, the reference adjacent pixel determining unit 83 determines the pixel values of the adjacent pixels based on the definition of the H.264/AVC format. On the other hand, in the event that reference adjacent pixels do not exist within the image frame of the reference frame, the reference adjacent pixel determining unit 83 determines the pixel values of the reference adjacent pixels by performing terminal point processing regarding the non-existent adjacent pixels. The present invention can be applied to an image encoding device which encodes with the H.264/AVC format, for example.

摘要翻译： 本发明涉及即使在与参考块相邻的相邻像素存在于图像帧之外的情况下也能够进行二阶预测的图像处理装置和方法。 参考相邻像素确定单元83从参考相邻确定单元77接收关于在参考帧的图像帧内是否存在参考相邻像素的确定结果的输入。 在参考相邻像素存在于参考帧的图像帧内的情况下，参考相邻像素确定单元83基于H.264 / AVC格式的定义来确定相邻像素的像素值。 另一方面，在参考帧的图像帧中不存在参考相邻像素的情况下，参考相邻像素确定单元83通过执行关于不存在的相邻像素的终点处理来确定参考相邻像素的像素值 相邻像素。 本发明可以应用于例如以H.264 / AVC格式进行编码的图像编码装置。

公开(公告)号：US20120106862A1

公开(公告)日：2012-05-03

申请号：US13318413

申请日：2010-05-07

申请人： Kazushi Sato

发明人： Kazushi Sato

IPC分类号： G06K9/36

CPC分类号： H04N19/523 ,  H04N19/51 ,  H04N19/593

摘要： The present invention relates to an image processing device, method, and program, enabling processing efficiency to be improved.In the event that a block B1 of a sub macro block SMB0 is a block which is the object of prediction, pixel values of a decoded image are set to be used for pixel values of adjacent pixels included in an upper region U and an upper left region LU, out of templates adjacent to the block B1 of the sub macro block SMB0. On the other hand, pixel values of a prediction image are set to be used for pixel values of adjacent pixels included in left region L, out of templates adjacent to the block B1 of the sub macro block SMB0. The present invention can be applied to an image encoding device performing encoding with the H.264/AVC format, for example.

摘要翻译： 本发明涉及一种能够提高处理效率的图像处理装置，方法和程序。 在子宏块SMB0的块B1是作为预测对象的块的情况下，解码图像的像素值被设置为用于包括在上部区域U和左上方的相邻像素的像素值 区域L​​U，与子宏块SMB0的块B1相邻的模板中。 另一方面，在与子宏块SMB0的块B1相邻的模板中，预测图像的像素值被设置为用于在左侧区域L中包括的相邻像素的像素值。 本发明可以应用于例如以H.264 / AVC格式进行编码的图像编码装置。

公开(公告)号：US20110170793A1

公开(公告)日：2011-07-14

申请号：US13119718

申请日：2009-09-24

申请人： Kazushi Sato ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： G06K9/36

CPC分类号： H04N19/86 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： The present invention relates to an image processing apparatus and method with which in an intra template matching system, it is possible to improve an encoding efficiency in a case where a change in luminance exists with respect to an identical texture in a screen.An intra TP matching unit 75 performs matching based on the intra template matching system with respect to a block of an image in a frame of an encoding target to carry out a weighted prediction. A lossless encoding unit 66 inserts template system information representing whether Weighted Prediction is performed to a header part of a compressed image. The present invention can be applied to the image encoding apparatus that performs encoding, for example, in H.264/AVC system.

摘要翻译： 本发明涉及一种图像处理装置和方法，其中在帧内模板匹配系统中，在屏幕中相对于相同纹理存在亮度变化的情况下，可以提高编码效率。 帧内TP匹配单元75基于帧内模板匹配系统对编码对象的帧中的图像块执行匹配，以执行加权预测。 无损编码单元66将表示是否对压缩图像的头部进行加权预测的模板系统信息插入。 本发明可以应用于例如H.264 / AVC系统中进行编码的图像编码装置。

公开(公告)号：US20110170604A1

公开(公告)日：2011-07-14

申请号：US13119715

申请日：2009-09-24

申请人： Kazushi Sato ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： H04N7/12

CPC分类号： H04N19/186 ,  H04N19/103 ,  H04N19/11 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61

摘要： The present invention relates to an image processing device and method whereby deterioration in compression efficiency can be suppressed without increasing computation amount while improving predictive accuracy.A motion vector Ptmmv for moving, based on distance tn-1 on the temporal axis between this frame Fn and a reference frame Fn-1, and distance tn-2 on the temporal axis between the reference frame Fn-1 and a reference frame Fn-2, a block blkn-1 in parallel with the reference frame Fn-2 is obtained. Prediction error between the block blkn-1 and a block blkn-2 is calculated based on SAD to obtain SAD2. A cost function evtm for evaluating the precision of a motion vector tmmv based on SAD1 and SAD2.

摘要翻译： 本发明涉及一种图像处理装置和方法，可以在不增加计算量的情况下抑制压缩效率的劣化，同时提高预测精度。 基于帧Fn与基准帧Fn-1之间的时间轴上的距离tn-1以及基准帧Fn-1与基准帧Fn之间的时间轴上的距离tn-2，移动的运动矢量Ptmmv -2，获得与参考帧Fn-2并联的块blkn-1。 基于SAD计算块blkn-1和块blkn-2之间的预测误差，以获得SAD2。 用于评估基于SAD1和SAD2的运动矢量tmmv的精度的成本函数evtm。

公开(公告)号：US20110164684A1

公开(公告)日：2011-07-07

申请号：US13119717

申请日：2009-09-24

申请人： Kazushi Sato ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： H04N7/12

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/107 ,  H04N19/176 ,  H04N19/513 ,  H04N19/56 ,  H04N19/61

摘要： The present invention relates to an image processing apparatus and method capable of suppressing an increase in the number of computations.By using a motion vector tmmv0 searched for in a reference frame of a reference picture number ref_id=0, an MRF search center calculation unit 77 calculates a motion search center mvc in the reference frame of a reference picture number ref_id=1, whose distance in the time axis to the target frame is next close to a reference picture number ref_id=0. A template motion prediction and compensation unit 76 performs a motion search in a predetermined range E in the surroundings of the obtained search center mvc of the reference frame of the reference picture number ref_id=1, performs a compensation process, and generates a prediction image. The present invention can be applied to, for example, an image coding device that performs coding in accordance with the H.264/AVC method.

摘要翻译： 本发明涉及能够抑制计算次数增加的图像处理装置和方法。 通过使用在参考图像编号ref_id = 0的参考帧中搜索到的运动矢量tmmv0，MRF搜索中心计算单元77计算参考图像编号ref_id = 1的参考帧中的运动搜索中心mvc， 到目标帧的时间轴接下来接近参考图像编号ref_id = 0。 模板运动预测和补偿单元76在参考图像编号ref_id = 1的参考帧的所获得的搜索中心mvc的周围的预定范围E中执行运动搜索，执行补偿处理，并且生成预测图像。 本发明可以应用于例如根据H.264 / AVC方法进行编码的图像编码装置。

公开(公告)号：US20100319030A1

公开(公告)日：2010-12-16

申请号：US12792509

申请日：2010-06-02

申请人： Hironari Sakurai ,  Junichi Tanaka ,  Kazushi Sato

发明人： Hironari Sakurai ,  Junichi Tanaka ,  Kazushi Sato

IPC分类号： H04N5/445

CPC分类号： H04N19/61 ,  H04N5/775 ,  H04N9/8042 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/625 ,  H04N21/4532 ,  H04N21/4821 ,  H04N21/84

摘要： An image processing apparatus includes a receiving unit configured to receive image data of program content and genre information relating to the program content, a selection unit configured to select a size selection parameter for causing the genre information received by the receiving unit to be reflected in a block size, a determination unit configured to determine a block size in accordance with the size selection parameter selected by the selection unit, the block size being used for orthogonal transformation, and an orthogonal transformation unit configured to perform orthogonal transformation on the image data received by the receiving unit at the block size determined by the determination unit.

摘要翻译： 一种图像处理装置，包括：接收单元，被配置为接收节目内容的图像数据和与节目内容有关的种类信息;选择单元，被配置为选择用于使由接收单元接收的种类信息被反映在 块尺寸，确定单元，被配置为根据由选择单元选择的尺寸选择参数确定块大小，用于正交变换的块大小;以及正交变换单元，被配置为对由 所述接收单元以由所述确定单元确定的块大小。

公开(公告)号：US07778331B2

公开(公告)日：2010-08-17

申请号：US10509682

申请日：2003-04-22

申请人： Kazushi Sato ,  Teruhiko Suzuki ,  Osamu Sunohara ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Teruhiko Suzuki ,  Osamu Sunohara ,  Yoichi Yagasaki

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/52 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537

摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

摘要翻译： 一种编码装置和编码方法，解码装置和解码方法，记录介质和适用于编码用于传输或累积的较高压缩比的图像信号的程序。 在算术编码部分中，从输入图像压缩信息的语法元素中，帧/场标志首先由帧/场标志上下文模型编码。 当要处理的宏块进行基于帧的编码时，应用在当前H.26L标准中指定的基于帧的上下文模型。 另一方面，当对待处理的宏块进行基于场的编码时，对于下面描述的语法元素应用基于场的上下文模型。 本发明应用于编码图像信息的编码器和解码图像信息的解码器。

公开(公告)号：US20100061644A1

公开(公告)日：2010-03-11

申请号：US12620431

申请日：2009-11-17

申请人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki ,  Kuniaki Takahashi

发明人： Kazushi Sato ,  Osamu Sunohara ,  Teruhiko Suzuki ,  Peter Kuhn ,  Yoichi Yagasaki ,  Kuniaki Takahashi

IPC分类号： G06K9/36

CPC分类号： H04N19/124 ,  H04N7/26244 ,  H04N7/26335 ,  H04N7/26941 ,  H04N7/50 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/40 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625

摘要： An image information decoding method for decoding compressed image information in an image decoding apparatus, which has been coded via a process including dividing an input image signal into blocks, performing an orthogonal transform on the blocks on a block-by-block basis, and quantizing resultant orthogonal transform coefficients. The decoding process includes performing, in a dequantization unit in the image decoding apparatus, dequantization such that a quantization parameter is weighted by an addition operation that adds the weight by addition, and the dequantization is performed on each chroma and luma component of the quantized coefficients using quantization step sizes, said luma component being weighted by the quantization parameter; and performing, in a transform unit in the image decoding apparatus, an inverse orthogonal transform.

摘要翻译： 一种用于对图像解码装置中的压缩图像信息进行解码的图像信息解码方法，所述图像解码装置已经通过包括将输入图像信号分割为块的处理进行编码，并且逐块地对块执行正交变换， 得到正交变换系数。 解码处理包括在图像解码装置的去量化单元中进行去量化，使得通过加法加权的加法运算对量化参数进行加权，并且对量化系数的每个色度和亮度分量执行去量化 使用量化步长，所述亮度分量由所述量化参数加权; 并且在图像解码装置的变换单元中执行逆正交变换。

公开(公告)号：US07676101B2

公开(公告)日：2010-03-09

申请号：US10725061

申请日：2003-12-02

申请人： Kazushi Sato ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： G06K9/36 ,  G06K9/46 ,  H04N7/12

CPC分类号： H04N19/57 ,  G06T7/238 ,  G06T2207/10016 ,  H04N5/145 ,  H04N19/523

摘要： A process burden for code processing is reduced by the present system and method while possibly avoiding the lowering of image quality. When compensating for motion prediction by using a multi-reference frame while sequentially changing the pixel-based sizes of motion compensating blocks, a size-reduced block is generated depending upon a motion compensating block having the greatest pixel-based size to be taken as the uppermost layer among the pixel-based sizes. Thereafter, motion vector search ranges are determined respectively within the reference frame images, on the basis of a plurality of size-reduced reference images reduced in size respectively corresponding to the size-reduction ratios of the size-reduced blocks and the size-reduced blocks. Using the determined search range, an optimal motion vector is detected while sequentially changing the pixel-based sizes of the motion compensating blocks. This can detect a motion vector by only a limited search range within the reference frame image.

摘要翻译： 通过本系统和方法减少代码处理的处理负担，同时可以避免图像质量的降低。 当在顺序地改变运动补偿块的基于像素的尺寸的同时通过使用多参考帧来补偿运动预测时，根据具有最大像素尺寸的运动补偿块来生成尺寸减小的块，作为 基于像素的尺寸中的最上层。 此后，基于减小尺寸的多个尺寸减小的参考图像分别在参考帧图像内确定运动矢量搜索范围，分别对应于尺寸减小的块和尺寸减小的块的尺寸减小比 。 使用确定的搜索范围，在顺序地改变运动补偿块的基于像素的大小的同时检测最佳运动矢量。 这可以仅通过参考帧图像内的有限搜索范围来检测运动矢量。