公开(公告)号：US20130223692A1

公开(公告)日：2013-08-29

申请号：US13456237

申请日：2012-04-26

申请人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jian-De Jiang

发明人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jian-De Jiang

IPC分类号： G06K9/48 ,  G06K9/00

CPC分类号： G06K9/3266

摘要： A method for detecting a static logo is provided. The method includes following steps. An edge detection is performed on each of a plurality of blocks to be detected in an image frame so as to obtain edge detection information. A motion estimation is performed on a plurality of blocks within a respective surrounding area of each of the blocks to be detected so as to obtain distribution information of motion vectors. Whether a logo is a static logo is determined according to the edge detection information and the distribution information of motion vectors. Accuracy of the logo detection can be increased by using the method.

摘要翻译： 提供了一种用于检测静态标志的方法。 该方法包括以下步骤。 对图像帧中要检测的多个块中的每一个进行边缘检测，以获得边缘检测信息。 对要检测的每个块的相应周围区域内的多个块执行运动估计，以获得运动矢量的分布信息。 根据边缘检测信息和运动矢量的分布信息确定标识是静态标识。 使用该方法可以提高标识检测的准确度。

公开(公告)号：US20130094765A1

公开(公告)日：2013-04-18

申请号：US13397676

申请日：2012-02-16

申请人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jian-de Jiang ,  Chun Wang

发明人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jian-de Jiang ,  Chun Wang

IPC分类号： G06K9/48

CPC分类号： H04N1/38

摘要： A method for detecting a black rim of an image frame is provided. The method includes following steps. Rim brightness information of a rim region of a current image frame is calculated. Frame brightness information of a frame region of the current image frame is obtained. A brightness threshold is calculated according to the rim brightness information and the frame brightness information. Whether a plurality of pixels in the rim region are black pixels is determined according to the brightness threshold. Furthermore, an image processing apparatus is also provided.

摘要翻译： 提供一种用于检测图像帧的黑色边缘的方法。 该方法包括以下步骤。 计算当前图像帧的边缘区域的边缘亮度信息。 获得当前图像帧的帧区域的帧亮度信息。 根据边缘亮度信息和帧亮度信息计算亮度阈值。 根据亮度阈值确定边缘区域中的多个像素是黑色像素。 此外，还提供了一种图像处理装置。

公开(公告)号：US20120213284A1

公开(公告)日：2012-08-23

申请号：US13402861

申请日：2012-02-22

申请人： Yen-Sung CHEN ,  Yu-Shu Liu ,  Tsui-Chin Chen ,  Chun Wang ,  Jian-De Jiang

发明人： Yen-Sung CHEN ,  Yu-Shu Liu ,  Tsui-Chin Chen ,  Chun Wang ,  Jian-De Jiang

IPC分类号： H04N7/26

CPC分类号： H04N19/157 ,  H04N19/172 ,  H04N19/51 ,  H04N19/521

摘要： A motion estimation method is provided for generating a motion vector of a to-be-generated frame between two continuous reference frames. The method includes the following steps. A candidate motion vector is obtained according to the position of a to-be-generated block of a to-be-generated frame. Two first reference blocks are obtained from the two reference frames by extending the candidate motion vector from the to-be-generated block to the two reference frames, respectively. Two second reference blocks are obtained from the two reference frames by extending the candidate motion vector from one reference frame to another reference frame. Whether the candidate motion vector is valid is determined according to the positions of the two reference blocks obtained in each obtaining step. The corresponding motion vector of the to-be-generated block is determined according to the valid candidate motion vector.

摘要翻译： 提供了一种运动估计方法，用于产生两个连续参考帧之间的待生成帧的运动矢量。 该方法包括以下步骤。 根据要生成的帧的待生成块的位置获得候选运动矢量。 通过将候选运动矢量分别从待生成的块延伸到两个参考帧，从两个参考帧获得两个第一参考块。 通过将候选运动矢量从一个参考帧延伸到另一参考帧，从两个参考帧获得两个第二参考块。 根据在每个获得步骤中获得的两个参考块的位置来确定候选运动矢量是否有效。 根据有效候选运动矢量确定待生成块的相应运动矢量。

公开(公告)号：US09894367B2

公开(公告)日：2018-02-13

申请号：US13402861

申请日：2012-02-22

申请人： Yen-Sung Chen ,  Yu-Shu Liu ,  Tsui-Chin Chen ,  Chun Wang ,  Jian-De Jiang

发明人： Yen-Sung Chen ,  Yu-Shu Liu ,  Tsui-Chin Chen ,  Chun Wang ,  Jian-De Jiang

IPC分类号： H04N7/26 ,  H04N11/00 ,  H04N19/157 ,  H04N19/172 ,  H04N19/51 ,  H04N19/513

CPC分类号： H04N19/157 ,  H04N19/172 ,  H04N19/51 ,  H04N19/521

摘要： A motion estimation method is provided for generating a motion vector of a to-be-generated frame between two continuous reference frames. The method includes the following steps. A candidate motion vector is obtained according to the position of a to-be-generated block of a to-be-generated frame. Two first reference blocks are obtained from the two reference frames by extending the candidate motion vector from the to-be-generated block to the two reference frames, respectively. Two second reference blocks are obtained from the two reference frames by extending the candidate motion vector from one reference frame to another reference frame. Whether the candidate motion vector is valid is determined according to the positions of the two reference blocks obtained in each obtaining step. The corresponding motion vector of the to-be-generated block is determined according to the valid candidate motion vector.

公开(公告)号：US20130136365A1

公开(公告)日：2013-05-30

申请号：US13490476

申请日：2012-06-07

申请人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jiande Jiang ,  Tsui-Chin Chen

发明人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jiande Jiang ,  Tsui-Chin Chen

IPC分类号： G06K9/48

CPC分类号： G06K9/6204

摘要： Method for detecting edge of fixed pattern includes receiving and analyzing a first image to obtain a first edge information. Second image and a corresponding second edge information are received, in which the second image includes an accumulation of image history information. According to the first edge information and the second edge information, a consistent number and an inconsistent number for pairs of pixels at the corresponding location of the first image and the second image are calculated, in which the consistent number represents how many pairs of pixels of which two compared pixels of each pair are both edge pixels, and the inconsistent number represents one of the two compared pixels is not the edge pixel. When the consistent number is greater than first predetermined value and meanwhile the inconsistent number is less than second predetermined value, first image and second image have a fixed pattern with fixed edge.

摘要翻译： 用于检测固定图案的边缘的方法包括接收和分析第一图像以获得第一边缘信息。 接收第二图像和对应的第二边缘信息，其中第二图像包括图像历史信息的累积。 根据第一边缘信息和第二边缘信息，计算在第一图像和第二图像的相应位置处的像素对的一致数量和不一致数量，其中一致数字表示多少对像素对 每对的两个比较的像素都是边缘像素，并且不一致的数字表示两个比较的像素之一不是边缘像素。 当一致数大于第一预定值时，同时不一致数小于第二预定值，第一图像和第二图像具有固定边缘的固定图案。

公开(公告)号：US08594436B2

公开(公告)日：2013-11-26

申请号：US13490476

申请日：2012-06-07

申请人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jiande Jiang ,  Tsui-Chin Chen

发明人： Yu-Shu Liu ,  Chun-Wei Chen ,  Jiande Jiang ,  Tsui-Chin Chen

IPC分类号： G06K9/48

CPC分类号： G06K9/6204

摘要： Method for detecting edge of fixed pattern includes receiving and analyzing a first image to obtain a first edge information. Second image and a corresponding second edge information are received, in which the second image includes an accumulation of image history information. According to the first edge information and the second edge information, a consistent number and an inconsistent number for pairs of pixels at the corresponding location of the first image and the second image are calculated, in which the consistent number represents how many pairs of pixels of which two compared pixels of each pair are both edge pixels, and the inconsistent number represents one of the two compared pixels is not the edge pixel. When the consistent number is greater than first predetermined value and meanwhile the inconsistent number is less than second predetermined value, first image and second image have a fixed pattern with fixed edge.

摘要翻译： 用于检测固定图案的边缘的方法包括接收和分析第一图像以获得第一边缘信息。 接收第二图像和对应的第二边缘信息，其中第二图像包括图像历史信息的累积。 根据第一边缘信息和第二边缘信息，计算在第一图像和第二图像的相应位置处的像素对的一致数量和不一致数量，其中一致数字表示多少对像素对 每对的两个比较的像素都是边缘像素，并且不一致的数字表示两个比较的像素之一不是边缘像素。 当一致数大于第一预定值时，同时不一致数小于第二预定值，第一图像和第二图像具有固定边缘的固定图案。

公开(公告)号：US20120224749A1

公开(公告)日：2012-09-06

申请号：US13272223

申请日：2011-10-13

申请人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

发明人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

IPC分类号： G06K9/00

CPC分类号： G06T7/223

摘要： A block matching method for estimating a motion vector of an estimation block of an image frame is provided, which includes comparing the estimation block with at least one reference block corresponding to a first object to obtain a plurality of pixel difference values, determining a mask area corresponding to the first object and a calculation area corresponding to a second object in the estimation block, and performing blocking matching operations on the calculation area to determine a motion vector of the second object as the motion vector of the estimation block.

摘要翻译： 提供了一种用于估计图像帧的估计块的运动矢量的块匹配方法，其包括将所述估计块与对应于第一对象的至少一个参考块进行比较以获得多个像素差值，确定掩模区域 对应于第一对象和对应于估计块中的第二对象的计算区域，并且对计算区域执行块匹配操作，以确定第二对象的运动矢量作为估计块的运动矢量。

公开(公告)号：US09420306B2

公开(公告)日：2016-08-16

申请号：US13345758

申请日：2012-01-09

申请人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

发明人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

IPC分类号： H04N19/00 ,  H04N19/533

CPC分类号： H04N19/533

摘要： An estimation method of a predicted motion vector for an image block having one or more pixels, which includes calculating a pixel difference value corresponding to a current frame and a reference frame for each pixel of the image block, determining a pixel difference area according to the pixel difference values corresponding to the plurality of pixels, and determining a predicted motion vector according to the pixel difference area.

摘要翻译： 一种具有一个或多个像素的图像块的预测运动矢量的估计方法，包括：计算与图像块的每个像素对应的当前帧和参考帧的像素差值，根据该像素差值区域确定 对应于所述多个像素的像素差值，以及根据所述像素差异区域确定预测运动矢量。

公开(公告)号：US08611612B2

公开(公告)日：2013-12-17

申请号：US13272223

申请日：2011-10-13

申请人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

发明人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

IPC分类号： G06K9/00

CPC分类号： G06T7/223

摘要： A block matching method for estimating a motion vector of an estimation block of an image frame is provided, which includes comparing the estimation block with at least one reference block corresponding to a first object to obtain a plurality of pixel difference values, determining a mask area corresponding to the first object and a calculation area corresponding to a second object in the estimation block, and performing blocking matching operations on the calculation area to determine a motion vector of the second object as the motion vector of the estimation block.

摘要翻译： 提供了一种用于估计图像帧的估计块的运动矢量的块匹配方法，其包括将所述估计块与对应于第一对象的至少一个参考块进行比较以获得多个像素差值，确定掩模区域 对应于第一对象和对应于估计块中的第二对象的计算区域，并且对计算区域执行块匹配操作，以确定第二对象的运动矢量作为估计块的运动矢量。

公开(公告)号：US20130051473A1

公开(公告)日：2013-02-28

申请号：US13345758

申请日：2012-01-09

申请人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

发明人： Tsui-Chin Chen ,  Yu-Shu Liu ,  Wan-Hsi Hsieh ,  Yu-Tsung Hu

IPC分类号： H04N7/32

CPC分类号： H04N19/533

摘要： An estimation method of a predicted motion vector for an image block having one or more pixels, which includes calculating a pixel difference value corresponding to a current frame and a reference frame for each pixel of the image block, determining a pixel difference area according to the pixel difference values corresponding to the plurality of pixels, and determining a predicted motion vector according to the pixel difference area.

摘要翻译： 一种具有一个或多个像素的图像块的预测运动矢量的估计方法，包括：计算与图像块的每个像素对应的当前帧和参考帧的像素差值，根据该像素差值区域确定 对应于所述多个像素的像素差值，以及根据所述像素差异区域确定预测运动矢量。