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1. 发明申请

US20090190660A1 IMAGE ENCODING METHOD 审中-公开
标题翻译：图像编码方法
公开(公告)号：US20090190660A1
公开(公告)日：2009-07-30
申请号：US12271376
申请日：2008-11-14
申请人： Toshihiko KUSAKABE , Shinji KITAMURA , Yasuharu TANAKA
发明人： Toshihiko KUSAKABE , Shinji KITAMURA , Yasuharu TANAKA
IPC分类号： H04N7/32
CPC分类号： H04N19/107 , H04N19/137 , H04N19/139 , H04N19/14 , H04N19/176 , H04N19/61
摘要： An image encoding method according to the present invention calculates first difference information of an encoding target block and second difference information of an adjacent block, calculates a difference between the first difference information and the second difference information, and uses an intra mode only for blocks where a residual image noise occurs by selecting the intra mode when the difference is larger than a predetermined threshold, and selecting an inter mode when the difference is smaller than the predetermined threshold.
摘要翻译：根据本发明的图像编码方法计算编码对象块的第一差分信息和相邻块的第二差分信息，计算第一差分信息和第二差分信息之间的差异，并且仅将帧内模式用于当差值大于预定阈值时选择帧内模式，并且当差值小于预定阈值时，选择帧间模式，发生残留图像噪声。

2. 发明授权

US08224105B2 Method for coding image, image coding device and image pickup system 有权
标题翻译：图像编码方法，图像编码装置及摄像系统
公开(公告)号：US08224105B2
公开(公告)日：2012-07-17
申请号：US13095457
申请日：2011-04-27
申请人： Toshihiko Kusakabe
发明人： Toshihiko Kusakabe
IPC分类号： G06K9/46 , G06K9/36
CPC分类号： H04N5/772 , H04N9/7921 , H04N9/8042 , H04N9/8047 , H04N19/11 , H04N19/122 , H04N19/14 , H04N19/176
摘要： It is decided whether a processing target block includes an edge in accordance with an edge detection result of the processing target block. In the case where the edge is included, it is then detected whether there is a flat portion. It is decided whether the processing target block includes the flat portion in accordance with a flat portion detection result. In the case where the flat portion is included, one of a first group of orthogonal transform sizes is selected. In the case where the edge is not included or the flat portion is not included, one of a second group of orthogonal transform sizes greater than the first group of orthogonal transform sizes is selected.
摘要翻译：根据处理对象块的边缘检测结果判定处理对象块是否包含边。在包括边缘的情况下，然后检测是否存在平坦部分。根据平坦部分检测结果确定处理目标块是否包括平坦部分。在包括平坦部分的情况下，选择第一组正交变换尺寸之一。在不包括边缘或不包括平坦部分的情况下，选择大于第一组正交变换大小的第二组正交变换大小之一。

3. 发明授权

US08031778B2 Picture decoding device and method 有权
标题翻译：图片解码装置及方法
公开(公告)号：US08031778B2
公开(公告)日：2011-10-04
申请号：US11795406
申请日：2006-01-11
申请人： Toshihiko Kusakabe
发明人： Toshihiko Kusakabe
IPC分类号： H04N11/02
CPC分类号： H04N19/86 , H04N19/117 , H04N19/174 , H04N19/176 , H04N19/194 , H04N19/436 , H04N19/44 , H04N19/61 , H04N19/82
摘要： A picture decoding device (100) comprises a decoding unit (30), a frame memory (40), a deblocking filter (50), a macro block memory (60), and a control unit (70). The macro block memory (60) stores an unfiltered picture data, for which deblock-filtering is not performed, of the macro blocks adjoining a slice boundary. Decoding and deblock-filtering are performed for the macro blocks of each slice in a manner of pipeline processing, and the decoded picture data for the macro blocks is stored in the frame memory (40). After the pipeline processing for all of the macro blocks is completed, the second deblock-filtering is performed to the slice boundary-adjoining macro blocks, and the pixel values of the slice boundary-adjoining macro blocks already stored in the frame memory (40) are replaced. Thereby, the encoded picture data of arbitrary slice order can be completely decoded.
摘要翻译：图像解码装置（100）包括解码单元（30），帧存储器（40），去块滤波器（50），宏块存储器（60）和控制单元（70）。宏块存储器（60）存储与切片边界相邻的宏块的未滤波图像数据（对其进行去块滤波）。以流水线处理的方式对每个切片的宏块执行解码和去块滤波，并且用于宏块的解码图像数据被存储在帧存储器（40）中。在完成所有宏块的流水线处理完成之后，对切片边界相邻的宏块执行第二去块滤波，并且已经存储在帧存储器（40）中的切片边界相邻的宏块的像素值，被替换由此，可以完全解码任意切片顺序的编码图像数据。

4. 发明申请

US20100034268A1 IMAGE CODING DEVICE AND IMAGE DECODING DEVICE 审中-公开
标题翻译：图像编码装置和图像解码装置
公开(公告)号：US20100034268A1
公开(公告)日：2010-02-11
申请号：US12515647
申请日：2008-09-17
申请人： Toshihiko Kusakabe , Akihiko Inoue
发明人： Toshihiko Kusakabe , Akihiko Inoue
IPC分类号： H04N7/50
CPC分类号： G06K9/00261 , H04N19/11 , H04N19/136 , H04N19/17 , H04N19/593 , H04N19/61
摘要： There is a problem of increasing image quality deterioration when selection of an intra prediction mode for a face outline portion is not correct at a low bit-rate. This invention includes: a face detection unit detecting a face image from an input picture; and an intra prediction mode control unit controlling intra prediction mode selection based on a result of the detection of the face detection unit. In the control of intra prediction mode selection, an intra prediction mode is selected based on where a current block is positioned in a region of the face image. Thereby, an appropriate intra prediction mode can be selected for the face outline portion. As a result, image quality deterioration on the face image at a low bit-rate can be prevented.
摘要翻译：当以低比特率选择面部轮廓部分的帧内预测模式不正确时，存在增加图像质量恶化的问题。本发明包括：面部检测单元，其从输入图像检测面部图像; 以及帧内预测模式控制单元，其基于面部检测单元的检测结果来控制帧内预测模式选择。在帧内预测模式选择的控制中，基于当前块位于面部图像的区域中的位置来选择帧内预测模式。因此，可以为面部轮廓部分选择适当的帧内预测模式。结果，可以防止以低比特率在脸部图像上的图像质量劣化。

5. 发明授权

US09118917B2 Image coding method, image coding apparatus, and imaging system 有权
标题翻译：图像编码方法，图像编码装置和成像系统
公开(公告)号：US09118917B2
公开(公告)日：2015-08-25
申请号：US13569885
申请日：2012-08-08
申请人： Megumi Sakai , Toshihiko Kusakabe , Shinji Kitamura , Yasuharu Tanaka
发明人： Megumi Sakai , Toshihiko Kusakabe , Shinji Kitamura , Yasuharu Tanaka
IPC分类号： H04N19/14 , H04N19/176 , H04N19/122 , H04N19/61
CPC分类号： H04N19/14 , H04N19/122 , H04N19/176 , H04N19/61
摘要： The image coding method according to the present invention includes the following steps. At a histogram calculation step, a histogram of pixel values included in a block image is calculated. At a plane region detection step, a size of a plane region included in the block image is detected. At an orthogonal transformation size selection step, (i) a first processing size is selected as a processing size of orthogonal transformation for the block image when the histogram is bimodal and the size of the plane region is equal to or greater than the first threshold value, and (ii) a second processing size greater than the first processing size is selected as the processing size, when that the histogram is not bimodal or the size of the plane region is smaller than the first threshold value.
摘要翻译：根据本发明的图像编码方法包括以下步骤。在直方图计算步骤中，计算包括在块图像中的像素值的直方图。在平面区域检测步骤中，检测包括在块图像中的平面区域的大小。在正交变换大小选择步骤中，（i）当直方图是双模的并且平面区域的大小等于或大于第一阈值时，选择第一处理大小作为块图像的正交变换的处理大小，并且（ii）当直方图不是双模态或平面区域的尺寸小于第一阈值时，选择大于第一处理大小的第二处理大小作为处理大小。

6. 发明申请

US20120300098A1 IMAGE CODING METHOD, IMAGE CODING APPARATUS, AND IMAGING SYSTEM 有权
标题翻译：图像编码方法，图像编码装置和成像系统
公开(公告)号：US20120300098A1
公开(公告)日：2012-11-29
申请号：US13569885
申请日：2012-08-08
申请人： Megumi SAKAI , Toshihiko Kusakabe , Shinji Kitamura , Yasuharu Tanaka
发明人： Megumi SAKAI , Toshihiko Kusakabe , Shinji Kitamura , Yasuharu Tanaka
IPC分类号： G06K9/36 , H04N5/228
CPC分类号： H04N19/14 , H04N19/122 , H04N19/176 , H04N19/61
摘要： The image coding method according to the present invention includes the following steps. At a histogram calculation step, a histogram of pixel values included in a block image is calculated. At a plane region detection step, a size of a plane region included in the block image is detected. At an orthogonal transformation size selection step, (i) a first processing size is selected as a processing size of orthogonal transformation for the block image when the histogram is bimodal and the size of the plane region is equal to or greater than the first threshold value, and (ii) a second processing size greater than the first processing size is selected as the processing size, when that the histogram is not bimodal or the size of the plane region is smaller than the first threshold value.
摘要翻译：根据本发明的图像编码方法包括以下步骤。在直方图计算步骤中，计算包括在块图像中的像素值的直方图。在平面区域检测步骤中，检测包括在块图像中的平面区域的大小。在正交变换大小选择步骤中，（i）当直方图是双模的并且平面区域的大小等于或大于第一阈值时，选择第一处理大小作为块图像的正交变换的处理大小，并且（ii）当直方图不是双模态或平面区域的尺寸小于第一阈值时，选择大于第一处理大小的第二处理大小作为处理大小。

7. 发明申请

US20110222792A1 METHOD FOR CODING IMAGE, IMAGE CODING DEVICE AND IMAGE PICKUP SYSTEM 有权
标题翻译：图像编码方法，图像编码装置和图像拾取系统
公开(公告)号：US20110222792A1
公开(公告)日：2011-09-15
申请号：US13095457
申请日：2011-04-27
申请人： Toshihiko KUSAKABE
发明人： Toshihiko KUSAKABE
IPC分类号： G06K9/36
CPC分类号： H04N5/772 , H04N9/7921 , H04N9/8042 , H04N9/8047 , H04N19/11 , H04N19/122 , H04N19/14 , H04N19/176
摘要： It is decided whether a processing target block includes an edge in accordance with an edge detection result of the processing target block. In the case where the edge is included, it is then detected whether there is a flat portion. It is decided whether the processing target block includes the flat portion in accordance with a flat portion detection result. In the case where the flat portion is included, one of a first group of orthogonal transform sizes is selected. In the case where the edge is not included or the flat portion is not included, one of a second group of orthogonal transform sizes greater than the first group of orthogonal transform sizes is selected.
摘要翻译：根据处理对象块的边缘检测结果判定处理对象块是否包含边。在包括边缘的情况下，然后检测是否存在平坦部分。根据平坦部分检测结果确定处理目标块是否包括平坦部分。在包括平坦部分的情况下，选择第一组正交变换尺寸之一。在不包括边缘或不包括平坦部分的情况下，选择大于第一组正交变换大小的第二组正交变换大小之一。

8. 发明申请

US20080225956A1 Picture Decoding Device and Method 有权
标题翻译：图像解码装置及方法
公开(公告)号：US20080225956A1
公开(公告)日：2008-09-18
申请号：US11795406
申请日：2006-01-11
申请人： Toshihiko Kusakabe
发明人： Toshihiko Kusakabe
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/174 , H04N19/176 , H04N19/194 , H04N19/436 , H04N19/44 , H04N19/61 , H04N19/82
摘要： A picture decoding device (100) comprises a decoding unit (30), a frame memory (40), a deblocking filter (50), a macro block memory (60), and a control unit (70). The macro block memory (60) stores an unfiltered picture data, for which deblock-filtering is not performed, of the macro blocks adjoining a slice boundary. Decoding and deblock-filtering are performed for the macro blocks of each slice in a manner of pipeline processing, and the decoded picture data for the macro blocks is stored in the frame memory (40). After the pipeline processing for all of the macro blocks is completed, the second deblock-filtering is performed to the slice boundary-adjoining macro blocks, and the pixel values of the slice boundary-adjoining macro blocks already stored in the frame memory (40) are replaced. Thereby, the encoded picture data of arbitrary slice order can be completely decoded.
摘要翻译：图像解码装置（100）包括解码单元（30），帧存储器（40），去块滤波器（50），宏块存储器（60）和控制单元（70）。宏块存储器（60）存储与切片边界相邻的宏块的未滤波图像数据（对其进行去块滤波）。以流水线处理的方式对每个切片的宏块执行解码和去块滤波，并且用于宏块的解码图像数据被存储在帧存储器（40）中。在完成所有宏块的流水线处理完成之后，对切片边界相邻的宏块执行第二去块滤波，并且已经存储在帧存储器（40）中的切片边界相邻的宏块的像素值，被替换由此，可以完全解码任意切片顺序的编码图像数据。

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