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41. 发明申请

US20100232697A1 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 有权
标题翻译：图像处理装置和图像处理方法
公开(公告)号：US20100232697A1
公开(公告)日：2010-09-16
申请号：US12560838
申请日：2009-09-16
申请人： Nao Mishima , Goh Itoh
发明人： Nao Mishima , Goh Itoh
IPC分类号： G06K9/00
CPC分类号： G06K9/4647 , G06K9/6212 , G06T5/002 , G06T5/20 , G06T5/40 , G06T2207/20012 , G06T2207/20192 , H04N19/61 , H04N19/86
摘要： An image processing apparatus includes a gradient calculator that calculates a direction and a magnitude of a gradient of each pixel in an input image using neighboring pixel values; a histogram calculator that calculates a Histogram of Oriented Gradients containing plural sampled directions from the directions and the magnitudes of the gradients calculated for the pixels in a region including the pixel being processed; a storing unit that stores plural smoothing filters and associated Histograms of Oriented Gradients; a search unit that calculates errors between Histogram of Oriented Gradients calculated for the pixel being processed and the Histograms of Oriented Gradients stored in the storing unit and searches the Histogram of Oriented Gradients that has the minimum error; and a filter processing unit that acquires one of the smoothing filters stored in association with the Histogram of Oriented Gradients having the minimum error and determines a corrected pixel value of the pixel being processed by filter processing with the acquired smoothing filter.
摘要翻译：一种图像处理装置，包括：梯度计算器，使用相邻像素值计算输入图像中每个像素的梯度的方向和幅度; 直方图计算器，其从包括正在处理的像素的区域中的像素计算的方向和梯度的大小计算包含多个取样方向的定向梯度的直方图; 存储单元，其存储多个平滑滤波器和相关联的定向梯度的直方图; 搜索单元，其计算针对正被处理的像素计算的定向梯度的直方图和存储在存储单元中的定向梯度的直方图之间的误差，并搜索具有最小误差的定向梯度的直方图; 以及滤波处理单元，其获取与具有最小误差的定向梯度的直方图相关联地存储的平滑滤波器之一，并且通过所获取的平滑滤波器确定通过滤波处理处理的像素的校正像素值。

42. 发明授权

US07561621B2 Method of searching for motion vector, method of generating frame interpolation image and display system 失效
标题翻译：搜索运动矢量的方法，生成帧插值图像和显示系统的方法
公开(公告)号：US07561621B2
公开(公告)日：2009-07-14
申请号：US10658539
申请日：2003-09-10
申请人： Goh Itoh , Nao Mishima , Haruhiko Okumura
发明人： Goh Itoh , Nao Mishima , Haruhiko Okumura
IPC分类号： H04N7/12
CPC分类号： H04N7/014 , G06T7/231 , H04N5/145
摘要： A motion vector detection method includes extracting a first block including a plurality of pixels from a first frame of the image, detecting a second block from a plurality of blocks of a second frame of the image by block matching, the second block including the maximum number of pixels each indicating an absolute difference value not more than a first threshold with respect to each of the pixels of the first block, and computing a first motion vector between the first block and the second block.
摘要翻译：运动矢量检测方法包括从图像的第一帧提取包括多个像素的第一块，通过块匹配从图像的第二帧的多个块中检测第二块，第二块包括最大数目的每个像素指示相对于第一块的每个像素的绝对差值不大于第一阈值，并且计算第一块和第二块之间的第一运动矢量。

43. 发明授权

US07098959B2 Frame interpolation and apparatus using frame interpolation 有权
标题翻译：帧插值和使用帧插值的装置
公开(公告)号：US07098959B2
公开(公告)日：2006-08-29
申请号：US10657174
申请日：2003-09-09
申请人： Nao Mishima , Goh Itoh
发明人： Nao Mishima , Goh Itoh
IPC分类号： H04N7/01
CPC分类号： H04N7/0132 , H04N5/145 , H04N7/0112 , H04N7/014
摘要： A first motion vector is estimated by using a first frame and a second frame that follows the first frame. A support frame is generated from at least either the first or the second frame by using the first motion vector. The support frame is divided into a plurality of small blocks. Motion vector candidates are estimated by using the first and second frames, in relation to each of the small blocks. A small block on the first frame, a small block on the second frame and the small blocks on the support frame are examined. The small block on the first frame and the small block on the second frame correspond to each of the motion vector candidates. A second motion vector is selected from the motion vector candidates, and points the small block on the first frame and the small block on the second frame which have the highest correlation with each of the small blocks on the support frame. An interpolated frame is generated from at least either the first or the second frame by using the second motion vector.
摘要翻译：通过使用跟随第一帧的第一帧和第二帧来估计第一运动矢量。通过使用第一运动矢量从至少第一帧或第二帧产生支持帧。支撑框架被分成多个小块。通过使用相对于每个小块的第一和第二帧来估计运动矢量候选。检查第一帧上的小块，第二帧上的小块和支持帧上的小块。第一帧上的小块和第二帧上的小块对应于每个运动矢量候选。从运动矢量候选中选择第二运动矢量，并将第一帧上的小块和与支撑帧上的每个小块具有最高相关性的第二帧上的小块指向。通过使用第二运动矢量从至少第一帧或第二帧产生内插帧。

44. 发明授权

US09406376B2 Motion vector detection apparatus and method 有权
标题翻译：运动矢量检测装置及方法
公开(公告)号：US09406376B2
公开(公告)日：2016-08-02
申请号：US13405522
申请日：2012-02-27
申请人： Takuma Yamamoto , Nao Mishima , Yasutoyo Takeyama , Toshimitsu Kaneko , Toshiyuki Ono
发明人： Takuma Yamamoto , Nao Mishima , Yasutoyo Takeyama , Toshimitsu Kaneko , Toshiyuki Ono
IPC分类号： H04N7/12 , G11C11/56 , G06T7/20 , H04N19/56 , H04N19/53
CPC分类号： G11C11/5642 , G06T7/223 , G06T2207/10016 , G06T2207/20016 , G06T2207/20021 , G11C2211/5634 , H04N19/53 , H04N19/56
摘要： According to one embodiment, a motion vector detection apparatus includes following units. The layering unit generates layers with different resolutions for each of first and second images. The first extraction unit extracts a space candidate vector. The second extraction unit extracts a time candidate vector. The third extraction unit extracts a layer candidate vector. The determination unit determines a motion vector to be assigned to the target block, based on correlations between the target block and blocks, the blocks being located in a layer which corresponds to the second image and being specified by assigning, to the target block, the space, time, and layer candidate vectors.
摘要翻译：根据一个实施例，运动矢量检测装置包括以下单元。分层单元为第一和第二图像中的每一个生成具有不同分辨率的层。第一提取单元提取空间候选向量。第二提取单元提取时间候选向量。第三提取单元提取层候选向量。确定单元基于目标块和块之间的相关性来确定要分配给目标块的运动向量，所述块位于与第二图像对应的层中，并且通过向目标块分配来指定空间，时间和层候选向量。

45. 发明授权

US08805020B2 Apparatus and method for generating depth signal 有权
标题翻译：用于产生深度信号的装置和方法
公开(公告)号：US08805020B2
公开(公告)日：2014-08-12
申请号：US13052194
申请日：2011-03-21
申请人： Takeshi Mita , Nao Mishima , Kenichi Shimoyama , Ryusuke Hirai
发明人： Takeshi Mita , Nao Mishima , Kenichi Shimoyama , Ryusuke Hirai
IPC分类号： G06K9/00 , G06K9/46 , G06K9/66 , G06K9/20 , G06K9/36 , H04N15/00 , H04N13/00 , G06T15/00 , G06T7/00 , G06T7/40
CPC分类号： G06K9/4642 , G06K9/00697 , G06K9/00704 , G06K9/6269 , G06T7/50 , G06T7/80 , G06T7/90 , G06T2207/10016 , G06T2207/10028 , G06T2207/20021 , H04N13/261
摘要： According to one embodiment, a depth signal generating apparatus includes following units. The calculating unit is configured to calculate a statistic value for pixel values for each of predefined areas in the first image, and calculate, for each of predetermined base depth models, a first evaluation value based on the calculated statistic value. The correcting unit is configured to correct, based on a second evaluation value previously derived for the second image and a first degree of similarity indicating a similarity between the predetermined base depth models, the first evaluation value to derive second evaluation values for the predetermined base depth models. The selecting unit is configured to select a base depth model having the highest second evaluation value from the predetermined base depth models. The generating unit is configured to generate a depth signal based on the selected base depth model.
摘要翻译：根据一个实施例，深度信号发生装置包括以下单元。计算单元被配置为计算第一图像中的每个预定区域的像素值的统计值，并且针对每个预定基础深度模型，基于所计算的统计值来计算第一评估值。校正单元被配置为基于先前为第二图像导出的第二评估值和指示预定基准深度模型之间的相似度的第一相似程度来校正第一评估值，以获得预定基础深度的第二评估值楷模。选择单元被配置为从预定的基本深度模型中选择具有最高的第二评估值的基础深度模型。生成单元被配置为基于所选择的基础深度模型生成深度信号。

46. 发明授权

US08483278B2 Method of searching for motion vector, method of generating frame interpolation image and display system 失效
公开(公告)号：US08483278B2
公开(公告)日：2013-07-09
申请号：US12410185
申请日：2009-03-24
申请人： Goh Itoh , Nao Mishima , Haruhiko Okumura
发明人： Goh Itoh , Nao Mishima , Haruhiko Okumura
IPC分类号： H04N7/12
CPC分类号： H04N7/014 , G06T7/231 , H04N5/145
摘要： A motion vector detection method includes extracting a first block including a plurality of pixels from a first frame of the image, detecting a second block from a plurality of blocks of a second frame of the image by block matching, the second block including the maximum number of pixels each indicating an absolute difference value not more than a first threshold with respect to each of the pixels of the first block, and computing a first motion vector between the first block and the second block.

47. 发明授权

US08289376B2 Image processing method and apparatus 失效
标题翻译：图像处理方法和装置
公开(公告)号：US08289376B2
公开(公告)日：2012-10-16
申请号：US13415381
申请日：2012-03-08
申请人： Nao Mishima , Kenichi Shimoyama , Takeshi Mita , Takashi Ida
发明人： Nao Mishima , Kenichi Shimoyama , Takeshi Mita , Takashi Ida
IPC分类号： H04N13/00
CPC分类号： G06T7/97 , H04N13/221
摘要： An image processing method for creating a disparity image for 3D display from a 2D video image includes detecting based on a first image of the 2D video image in a time and a second image in a time different from the first image, motion vectors between the first and second images for each block of the first image, detecting from the motion vectors, a most backward vector of a portion whose depth is on the back side, calculating differential vectors between each motion vector and the most backward vector and giving a depth on a close to the block of the first image corresponding to the motion vector having the larger differential vector and creating one or more disparity images from the first image and the depth.
摘要翻译：一种用于从2D视频图像创建用于3D显示的视差图像的图像处理方法包括：在与第一图像不同的时间内基于2D视频图像的第一图像和第二图像的检测，第一图像与第一图像之间的运动矢量以及第一图像的每个块的第二图像，从运动矢量检测深度在背面的部分的最后向量，计算每个运动矢量与最后向矢量之间的差分向量，并且在靠近与具有较大差分矢量的运动矢量对应的第一图像的块，并且从第一图像和深度创建一个或多个视差图像。

48. 发明申请

US20120162223A1 PARALLAX IMAGE GENERATING APPARATUS 失效
标题翻译： PARALLAX图像发生装置
公开(公告)号：US20120162223A1
公开(公告)日：2012-06-28
申请号：US13409213
申请日：2012-03-01
申请人： Ryusuke Hirai , Hidenori Takeshima , Takeshi Mita , Nao Mishima , Kenichi Shimoyama , Takashi Ida
发明人： Ryusuke Hirai , Hidenori Takeshima , Takeshi Mita , Nao Mishima , Kenichi Shimoyama , Takashi Ida
IPC分类号： G06T15/00
CPC分类号： G06T3/4007 , H04N13/106 , H04N13/128 , H04N13/261 , H04N2013/0081
摘要： According to one embodiment, a parallax image generating apparatus includes a deriving unit, a generating unit, a first calculating unit, a setting unit, a searching unit, and an interpolating unit. The deriving unit derives a parallax vector corresponding to a first pixel from the input image and depth information associated with the first pixel. The generating unit generates an intermediate image. The first calculating unit calculates first weights for respective pixels of a parallax image. The setting unit sets one or more candidate blocks near a shade-forming-area pixel of the intermediate image, and sets a reference block among one or more candidate blocks. The searching unit searches a target block similar to the reference block in the input image and/or the intermediate image. The interpolating unit interpolates a pixel value of the shade-forming-area pixel.
摘要翻译：根据一个实施例，视差图像生成装置包括导出单元，生成单元，第一计算单元，设置单元，搜索单元和内插单元。导出单元从输入图像中导出对应于第一像素的视差矢量和与第一像素相关联的深度信息。生成单元生成中间图像。第一计算单元计算视差图像的各个像素的第一权重。设置单元在中间图像的阴影形成区域像素附近设置一个或多个候选块，并且在一个或多个候选块中设置参考块。搜索单元在输入图像和/或中间图像中搜索与参考块类似的目标块。内插单元内插色调形成区域像素的像素值。

49. 发明申请

US20120057760A1 MOTION VECTOR DETECTION DEVICE, APPARATUS FOR DETECTING MOTION VECTOR AND MOTION VECTOR DETECTION METHOD 有权
标题翻译：运动矢量检测装置，检测运动矢量和运动矢量检测方法的装置
公开(公告)号：US20120057760A1
公开(公告)日：2012-03-08
申请号：US13221938
申请日：2011-08-31
申请人： Takuma YAMAMOTO , Nao Mishima
发明人： Takuma YAMAMOTO , Nao Mishima
IPC分类号： G06K9/00
CPC分类号： G06T7/238 , G06T2207/10016 , G06T2207/20021
摘要： A motion vector detection device includes: a matching error calculation part that calculates matching errors between a focus block and each of reference blocks; a least matching error calculation part calculating a least matching error from among the matching errors; a threshold calculation part calculating a threshold value; a correction vector calculation part calculating a correction vector from motion vectors detected in the reference blocks; and a motion vector determination part determining, as a motion vector for the focus block, a relative position vector in a block in which the relative position vector with respect to the focus block is the closest to the correction vector, the block being selected from among the reference blocks in which a difference between the plurality of matching errors and the least matching error is within the threshold value.
摘要翻译：运动矢量检测装置包括：匹配误差计算部，其计算聚焦块与各参考块之间的匹配误差; 从所述匹配误差中计算最小匹配误差的最小匹配误差计算部; 计算阈值的阈值计算部; 校正矢量计算部分，从参考块中检测的运动矢量计算校正矢量; 以及运动矢量确定部，其确定作为所述焦点块的运动矢量的相对于所述焦点块的相对位置矢量最接近所述校正向量的块中的相对位置矢量，所述块选自其中多个匹配误差和最小匹配误差之间的差在阈值内的参考块。

50. 发明授权

US07375762B2 Frame interpolation method and apparatus, and image display system 有权
标题翻译：帧插值方法和装置，以及图像显示系统
公开(公告)号：US07375762B2
公开(公告)日：2008-05-20
申请号：US10855617
申请日：2004-05-28
申请人： Nao Mishima , Go Ito
发明人： Nao Mishima , Go Ito
IPC分类号： H04N7/01 , H04N5/21
CPC分类号： H04N5/145 , H04N7/014
摘要： An image interpolation method comprises searching a motion vector from different pairs of blocks on a first and a second reference image symmetrically, extracting a first and a second image block from the first and the second reference image, respectively, the first and the second image block being located by the motion vector, determining a region determination threshold using an absolute difference between paired opposite pixels of the first and the second image block, extracting from each of the first and the second image block a first pixel region that the absolute difference is smaller than the region determination threshold, and obtaining a pixel value of a second pixel region of the to-be-interpolated block from a pixel value of the first pixel region of each of the first and the second image block, the second pixel region corresponding to the first pixel region.
摘要翻译：图像插值方法包括：对对称地搜索第一和第二参考图像上的不同对块对的运动矢量，分别从第一和第二参考图像提取第一和第二图像块，第一和第二图像块由所述运动矢量定位，使用所述第一和第二图像块的成对的相对像素之间的绝对差来确定区域确定阈值，从所述第一和第二图像块中的每一个提取绝对差较小的第一像素区域并且从第一和第二图像块中的每个的第一像素区域的像素值获得待插值块的第二像素区域的像素值，对应于第二像素区域第一像素区域。

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