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公开(公告)号：US09900550B1
公开(公告)日：2018-02-20
申请号：US15665435
申请日：2017-08-01
Applicant: Novatek Microelectronics Corp.
Inventor： Cheng-Wei Chou , Hsiao-En Chang , Chun-Wei Chen
CPC classification number: H04N7/0127 , G06T7/248 , G06T2207/10016 , H04N7/014
Abstract: An frame rate up-conversion (FRC) apparatus and method are provided. The motion vector generating circuit compares a previous original frame with a current original frame to obtain the first motion vectors of the blocks of the current original frame, and compares the current original frame and a posterior original frame to obtain the second motion vectors of the blocks of the current original frame. The motion vector correction circuit checks whether the blocks of the second original frame are located in an occlusion area, and corrects the motion vectors of the blocks in the occlusion area based on the first motion vectors and the second motion vectors of the first original frame, the second original frame and the third original frame. The interpolation frame generating circuit creates at least one interpolation frame between the first original frame and the second original frame based on the corrected motion vectors.
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公开(公告)号：US09042638B2
公开(公告)日：2015-05-26
申请号：US14033515
申请日：2013-09-22
Applicant: NOVATEK Microelectronics Corp.
Inventor： Lei Zhou , Guangzhi Liu , Cheng-Wei Chou
IPC: G06K9/00
CPC classification number: G06K9/00536 , G06K9/00201 , G06K9/6202 , G06T7/593 , G06T2207/20021
Abstract: An image matching method is utilized for performing a stereo matching from a first image block to a second image block in a stereo matching system. The image matching method includes performing a matching computation from the first image block to the second image block according to a first matching algorithm to generate a first matching result; performing the matching computation between the first image block and the second image block according to a second matching algorithm to generate a second matching result and a third matching result; obtaining a matching error and a matching similarity of the first image block according to the second matching result and the third matching result; and determining a stereo matching result of the first image block according to the matching error and the matching similarity.
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公开(公告)号：US20150085085A1
公开(公告)日：2015-03-26
申请号：US14098543
申请日：2013-12-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Guangzhi Liu , Lei Zhou , Cheng-Wei Chou
IPC: H04N13/04
CPC classification number: G06T7/593
Abstract: A disparity calculating method for a stereo matching system includes calculating a global energy matrix according to a first image, a second image and a previous disparity matrix of a previous frame; calculating a global disparity matrix according to the global energy matrix and a first stereo matching algorithm; calculating a local energy matrix between a first image block of the first image and a second image block of the second image according to the first image block, the second image block, a previous block disparity matrix and the global disparity matrix; and calculating a local disparity matrix between the first image block and the second image block according to the local energy matrix and a second stereo matching algorithm.
Abstract translation: 立体匹配系统的视差计算方法包括根据先前帧的第一图像，第二图像和先前视差矩阵来计算全局能量矩阵; 根据全局能量矩阵和第一立体匹配算法计算全局视差矩阵; 根据第一图像块，第二图像块，先前块视差矩阵和全局视差矩阵计算第一图像的第一图像块和第二图像的第二图像块之间的局部能量矩阵; 以及根据所述局部能量矩阵和第二立体匹配算法计算所述第一图像块和所述第二图像块之间的局部差异矩阵。
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公开(公告)号：US20150063680A1
公开(公告)日：2015-03-05
申请号：US14100003
申请日：2013-12-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Guangzhi Liu , Lei Zhou , Cheng-Wei Chou
CPC classification number: H04N13/128 , G06T7/593 , G06T2207/10012 , H04N2013/0081
Abstract: A disparity calculating method includes generating an energy matrix according to a first image-block and a second image-block, wherein the energy matrix includes a plurality of energies of a plurality of pixels corresponding to a plurality of disparity candidates; setting the energy corresponding to a starting pixel of the plurality of pixels and a specified disparity candidate of the plurality of disparity candidates as a first predetermined value and setting the energies corresponding to the starting pixel and other disparity candidates of the plurality of disparity candidates as a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; generating a path matrix according to the energy matrix; and determining a plurality of disparities of the plurality of pixels sequentially from an ending pixels of the plurality of pixels, wherein the disparity of the ending pixel is set as a third predetermined value.
Abstract translation: 视差计算方法包括根据第一图像块和第二图像块生成能量矩阵，其中所述能量矩阵包括与多个视差候选对应的多个像素的多个能量; 将与所述多个像素的起始像素相对应的能量和所述多个视差候选中的指定视差候选设置为第一预定值，并将与所述多个视差候选中的起始像素和其他视差候选对应的能量设置为 第二预定值，其中所述第二预定值大于所述第一预定值; 根据能量矩阵生成路径矩阵; 以及从所述多个像素的结束像素顺序地确定所述多个像素的多个不同，其中所述结束像素的视差被设置为第三预定值。
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公开(公告)号：US20150010230A1
公开(公告)日：2015-01-08
申请号：US14033515
申请日：2013-09-22
Applicant: NOVATEK Microelectronics Corp.
Inventor： Lei Zhou , Guangzhi Liu , Cheng-Wei Chou
IPC: G06K9/00
CPC classification number: G06K9/00536 , G06K9/00201 , G06K9/6202 , G06T7/593 , G06T2207/20021
Abstract: An image matching method is utilized for performing a stereo matching from a first image block to a second image block in a stereo matching system. The image matching method includes performing a matching computation from the first image block to the second image block according to a first matching algorithm to generate a first matching result; performing the matching computation between the first image block and the second image block according to a second matching algorithm to generate a second matching result and a third matching result; obtaining a matching error and a matching similarity of the first image block according to the second matching result and the third matching result; and determining a stereo matching result of the first image block according to the matching error and the matching similarity.
Abstract translation: 图像匹配方法用于在立体匹配系统中执行从第一图像块到第二图像块的立体匹配。 图像匹配方法包括根据第一匹配算法执行从第一图像块到第二图像块的匹配计算，以产生第一匹配结果; 根据第二匹配算法执行第一图像块和第二图像块之间的匹配计算，以产生第二匹配结果和第三匹配结果; 根据第二匹配结果和第三匹配结果获得第一图像块的匹配误差和匹配相似度; 以及根据匹配误差和匹配相似度确定第一图像块的立体匹配结果。
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Patent Agency Ranking
公开(公告)号：US20150023585A1
公开(公告)日：2015-01-22
申请号：US14054816
申请日：2013-10-15
Applicant: NOVATEK Microelectronics Corp.
Inventor： Lei Zhou , Guangzhi Liu , Cheng-Wei Chou
IPC: G06F17/30
CPC classification number: G06F17/30244
Abstract: A matching search method is utilized for performing a matching search from a first image block to a second image block in a stereo matching system. The matching search method includes obtaining a global offset of the first image block corresponding to the second image block according to an offset relationship between a first image data of the first image block and a second image data of the second image block; and performing the matching search from the first image block to the second image block according to the global offset and a searching range.
Abstract translation: 一种匹配的搜索方法用于在立体匹配系统中执行从第一图像块到第二图像块的匹配搜索。 匹配搜索方法包括根据第一图像块的第一图像数据和第二图像块的第二图像数据之间的偏移关系获得与第二图像块相对应的第一图像块的全局偏移; 以及根据全局偏移量和搜索范围，从第一图像块到第二图像块执行匹配搜索。
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公开(公告)号：US10057596B2
公开(公告)日：2018-08-21
申请号：US15345470
申请日：2016-11-07
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hsiao-En Chang , Cheng-Wei Chou
IPC: H04N19/00 , H04N19/527 , H04N19/513 , H04N19/543
CPC classification number: H04N19/527 , H04N19/521 , H04N19/543
Abstract: A motion estimation method for blocks of a periodic pattern is provided, which includes determining a global motion vector corresponding to a region according to motion vectors of periodic blocks in the region; generating candidate motion vectors of a target periodic block to be encoded in a second frame; for each candidate motion vector, determining a penalty value based on at least one difference between the candidate motion vector and at least one global motion vector corresponding to at least a relative region in the first frame; for each candidate motion vector, calculating a weighted similarity value based on an original similarity value between the target periodic block of the second frame and a reference block corresponding to the candidate motion vector of the first frame, and the penalty value; and determining a motion vector of the target periodic block according to weighted similarity values of the candidate motion vectors.
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公开(公告)号：US20180131959A1
公开(公告)日：2018-05-10
申请号：US15345470
申请日：2016-11-07
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hsiao-En Chang , Cheng-Wei Chou
IPC: H04N19/527 , H04N19/513 , H04N19/543
CPC classification number: H04N19/527 , H04N19/521 , H04N19/543
Abstract: A motion estimation method for blocks of a periodic pattern is provided, which includes determining a global motion vector corresponding to a region according to motion vectors of periodic blocks in the region; generating candidate motion vectors of a target periodic block to be encoded in a second frame; for each candidate motion vector, determining a penalty value based on at least one difference between the candidate motion vector and at least one global motion vector corresponding to at least a relative region in the first frame; for each candidate motion vector, calculating a weighted similarity value based on an original similarity value between the target periodic block of the second frame and a reference block corresponding to the candidate motion vector of the first frame, and the penalty value; and determining a motion vector of the target periodic block according to weighted similarity values of the candidate motion vectors.
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公开(公告)号：US09241148B2
公开(公告)日：2016-01-19
申请号：US14100003
申请日：2013-12-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Guangzhi Liu , Lei Zhou , Cheng-Wei Chou
CPC classification number: H04N13/128 , G06T7/593 , G06T2207/10012 , H04N2013/0081
Abstract: A disparity calculating method includes generating an energy matrix according to a first image-block and a second image-block, wherein the energy matrix includes a plurality of energies of a plurality of pixels corresponding to a plurality of disparity candidates; setting the energy corresponding to a starting pixel of the plurality of pixels and a specified disparity candidate of the plurality of disparity candidates as a first predetermined value and setting the energies corresponding to the starting pixel and other disparity candidates of the plurality of disparity candidates as a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; generating a path matrix according to the energy matrix; and determining a plurality of disparities of the plurality of pixels sequentially from an ending pixels of the plurality of pixels, wherein the disparity of the ending pixel is set as a third predetermined value.
Abstract translation: 视差计算方法包括根据第一图像块和第二图像块生成能量矩阵，其中所述能量矩阵包括与多个视差候选对应的多个像素的多个能量; 将与所述多个像素的起始像素相对应的能量和所述多个视差候选中的指定视差候选设置为第一预定值，并将与所述多个视差候选中的起始像素和其他视差候选对应的能量设置为 第二预定值，其中所述第二预定值大于所述第一预定值; 根据能量矩阵生成路径矩阵; 以及从所述多个像素的结束像素顺序地确定所述多个像素的多个不同，其中所述结束像素的视差被设置为第三预定值。
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公开(公告)号：US09323782B2
公开(公告)日：2016-04-26
申请号：US14054816
申请日：2013-10-15
Applicant: NOVATEK Microelectronics Corp.
Inventor： Lei Zhou , Guangzhi Liu , Cheng-Wei Chou
CPC classification number: G06F17/30244
Abstract: A matching search method is utilized for performing a matching search from a first image block to a second image block in a stereo matching system. The matching search method includes obtaining a global offset of the first image block corresponding to the second image block according to an offset relationship between a first image data of the first image block and a second image data of the second image block; and performing the matching search from the first image block to the second image block according to the global offset and a searching range.
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