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公开(公告)号:US08837769B2
公开(公告)日:2014-09-16
申请号:US13098042
申请日:2011-04-29
申请人: Lei Yang , Qian Chen , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
发明人: Lei Yang , Qian Chen , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
CPC分类号: G06F17/30799 , G06K9/00744
摘要: In accordance with an embodiment, a method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances.
摘要翻译: 根据实施例,将第一组帧与第二组帧进行比较的方法包括电子地接收第一组帧,从第一组帧中选择一组帧作为第一关键帧集合,计算一个 第一关键帧中的每帧的图像散列之间的散列距离设置为从第二组帧取得的第二关键帧集合的每个帧的图像散列,并且选择具有最小散列距离的第一组帧中的帧 相应的参考帧以形成一系列最小散列距离。
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公开(公告)号:US08913779B2
公开(公告)日:2014-12-16
申请号:US13009780
申请日:2011-01-19
申请人: Lei Yang , Qian Chen , Jun Tian , Hong Heather Yu , Dapeng Oliver Wu
发明人: Lei Yang , Qian Chen , Jun Tian , Hong Heather Yu , Dapeng Oliver Wu
IPC分类号: G06K9/00 , H04N21/2347 , H04N21/8358
CPC分类号: H04N21/2347 , H04N21/8358
摘要: A system and method for securing media content are provided. A method for distributing security media content includes embedding a marking payload into media content, thereby producing embedded media content, applying a transform to the embedded media content, thereby producing secured media content, and distributing the secured media content. The marking payload is embedded based on perceptual information regarding the media content.
摘要翻译: 提供了一种用于保护媒体内容的系统和方法。 一种用于分发安全媒体内容的方法包括将标记有效载荷嵌入到媒体内容中,由此产生嵌入式媒体内容,向嵌入式媒体内容应用变换,由此产生安全媒体内容,并分发安全媒体内容。 基于关于媒体内容的感知信息来嵌入标记有效载荷。
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公开(公告)号:US20120076422A1
公开(公告)日:2012-03-29
申请号:US12892148
申请日:2010-09-28
申请人: Lei Yang , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
发明人: Lei Yang , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
IPC分类号: G06K9/46
CPC分类号: G06K9/6211 , G06F17/30256 , G06T1/0028 , G06T2201/0052 , G06T2201/0201 , H04N21/44008 , H04N21/4627 , H04N21/8352 , H04N21/8355
摘要: In accordance with an embodiment, a method of authenticating images includes electronically receiving an anchor image and a query image, performing a feature point extraction of an anchor image, and performing a feature point extraction of a query image. The method also includes clustering feature points of the anchor image and feature points of the query image, where clustering includes determining matching feature points, determining outlier feature points, and excluding outlier feature points. Whether the anchor image is similar to the query image is determined based on a distance between the feature points of the anchor image and the feature points of the query image. If the anchor image is similar to the query image, possible tampered areas of the query image based on the outlier feature points are identified.
摘要翻译: 根据实施例,认证图像的方法包括电子地接收锚图像和查询图像,执行锚图像的特征点提取,以及执行查询图像的特征点提取。 该方法还包括锚图像的聚类特征点和查询图像的特征点,其中聚类包括确定匹配特征点,确定离群点特征点,并排除异常值特征点。 基于锚图像的特征点与查询图像的特征点之间的距离来确定锚图像是否类似于查询图像。 如果锚图像与查询图像相似,则识别基于异常特征点的查询图像的可能的篡改区域。
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公开(公告)号:US08483427B2
公开(公告)日:2013-07-09
申请号:US12892148
申请日:2010-09-28
申请人: Lei Yang , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
发明人: Lei Yang , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
IPC分类号: G06K9/62
CPC分类号: G06K9/6211 , G06F17/30256 , G06T1/0028 , G06T2201/0052 , G06T2201/0201 , H04N21/44008 , H04N21/4627 , H04N21/8352 , H04N21/8355
摘要: In accordance with an embodiment, a method of authenticating images includes electronically receiving an anchor image and a query image, performing a feature point extraction of an anchor image, and performing a feature point extraction of a query image. The method also includes clustering feature points of the anchor image and feature points of the query image, where clustering includes determining matching feature points, determining outlier feature points, and excluding outlier feature points. Whether the anchor image is similar to the query image is determined based on a distance between the feature points of the anchor image and the feature points of the query image. If the anchor image is similar to the query image, possible tampered areas of the query image based on the outlier feature points are identified.
摘要翻译: 根据实施例,认证图像的方法包括电子地接收锚图像和查询图像,执行锚图像的特征点提取,以及执行查询图像的特征点提取。 该方法还包括锚图像的聚类特征点和查询图像的特征点,其中聚类包括确定匹配特征点,确定离群点特征点,并排除异常值特征点。 基于锚图像的特征点与查询图像的特征点之间的距离来确定锚图像是否类似于查询图像。 如果锚图像与查询图像相似,则识别基于异常特征点的查询图像的可能的篡改区域。
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公开(公告)号:US20120087583A1
公开(公告)日:2012-04-12
申请号:US13098042
申请日:2011-04-29
申请人: Lei Yang , Qian Chen , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
发明人: Lei Yang , Qian Chen , Jun Tian , Dapeng Oliver Wu , Hong Heather Yu
IPC分类号: G06K9/68
CPC分类号: G06F17/30799 , G06K9/00744
摘要: In accordance with an embodiment, A method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances.
摘要翻译: 根据实施例,将第一组帧与第二组帧进行比较的方法包括电子地接收第一组帧,从第一组帧中选择一组帧作为第一关键帧集合,计算一个 第一关键帧中的每帧的图像散列之间的散列距离设置为从第二组帧取得的第二关键帧集合的每个帧的图像散列,并且选择具有最小散列距离的第一组帧中的帧 相应的参考帧以形成一系列最小散列距离。
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公开(公告)号:US20110188703A1
公开(公告)日:2011-08-04
申请号:US13009780
申请日:2011-01-19
申请人: Lei Yang , Qian Chen , Jun Tian , Hong Heather Yu , Dapeng Oliver Wu
发明人: Lei Yang , Qian Chen , Jun Tian , Hong Heather Yu , Dapeng Oliver Wu
CPC分类号: H04N21/2347 , H04N21/8358
摘要: A system and method for securing media content are provided. A method for distributing security media content includes embedding a marking payload into media content, thereby producing embedded media content, applying a transform to the embedded media content, thereby producing secured media content, and distributing the secured media content. The marking payload is embedded based on perceptual information regarding the media content.
摘要翻译: 提供了一种用于保护媒体内容的系统和方法。 一种用于分发安全媒体内容的方法包括将标记有效载荷嵌入到媒体内容中,由此产生嵌入式媒体内容,向嵌入式媒体内容应用变换,由此产生安全媒体内容,并分发安全媒体内容。 基于关于媒体内容的感知信息来嵌入标记有效载荷。
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公开(公告)号:US08406297B2
公开(公告)日:2013-03-26
申请号:US12553775
申请日:2009-09-03
申请人: Taoran Lu , Zhifeng Chen , Dapeng Oliver Wu , Yu Huang , Jun Tian , Hong Heather Yu
发明人: Taoran Lu , Zhifeng Chen , Dapeng Oliver Wu , Yu Huang , Jun Tian , Hong Heather Yu
IPC分类号: H04N7/26
CPC分类号: H04N19/17 , H04N19/124 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/61
摘要: A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.
摘要翻译: 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内帧的图像序列进行编码的方法包括:在至少一组图像(GOP)中对帧间帧和帧内进行分组,并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧,该方法还包括将帧划分成多个宏块,将多个宏块中的宏块识别为具有感兴趣区域(ROI),并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码,从而产生编码图像序列,并输出编码图像序列。
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8.
公开(公告)号:US08805106B2
公开(公告)日:2014-08-12
申请号:US12566473
申请日:2009-09-24
申请人: Bing Han , Dapeng Oliver Wu , Jun Tian , Hong Heather Yu
发明人: Bing Han , Dapeng Oliver Wu , Jun Tian , Hong Heather Yu
CPC分类号: H04N19/645 , H04N19/12 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/60 , H04N19/61 , H04N19/62 , H04N19/625
摘要: A system and method for image and video compression and decompression using compressive sensing is provided. A method for decompressing a compressed image, where the compressed image having a plurality of compressed image blocks, and the method is performed on a processor, includes selecting a compressed image block, entropy decoding the selected compressed image block, and recovering an image block corresponding to the decoded selected compressed image block using compressive sensing recovery.
摘要翻译: 提供了使用压缩感测的图像和视频压缩和解压缩的系统和方法。 一种解压缩压缩图像的方法,其中具有多个压缩图像块的压缩图像和该方法在处理器上执行,包括选择压缩图像块,对所选压缩图像块进行熵解码,以及恢复相应的图像块 使用压缩感测恢复到解码的所选压缩图像块。
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公开(公告)号:US20100098162A1
公开(公告)日:2010-04-22
申请号:US12553775
申请日:2009-09-03
申请人: Taoran Lu , Zhifeng Chen , Dapeng Oliver Wu , Yu Huang , Jun Tian , Hong Heather Yu
发明人: Taoran Lu , Zhifeng Chen , Dapeng Oliver Wu , Yu Huang , Jun Tian , Hong Heather Yu
IPC分类号: H04N7/26
CPC分类号: H04N19/17 , H04N19/124 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/61
摘要: A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.
摘要翻译: 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内帧的图像序列进行编码的方法包括:在至少一组图像(GOP)中对帧间帧和帧内进行分组,并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧,该方法还包括将帧划分成多个宏块,将多个宏块中的宏块识别为具有感兴趣区域(ROI),并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码,从而产生编码图像序列,并输出编码图像序列。
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10.
公开(公告)号:US20100080473A1
公开(公告)日:2010-04-01
申请号:US12566473
申请日:2009-09-24
申请人: Bing Han , Dapeng Oliver Wu , Jun Tian , Hong Heather Yu
发明人: Bing Han , Dapeng Oliver Wu , Jun Tian , Hong Heather Yu
IPC分类号: G06K9/36
CPC分类号: H04N19/645 , H04N19/12 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/46 , H04N19/48 , H04N19/60 , H04N19/61 , H04N19/62 , H04N19/625
摘要: A system and method for image and video compression and decompression using compressive sensing is provided. A method for decompressing a compressed image, where the compressed image having a plurality of compressed image blocks, and the method is performed on a processor, includes selecting a compressed image block, entropy decoding the selected compressed image block, and recovering an image block corresponding to the decoded selected compressed image block using compressive sensing recovery.
摘要翻译: 提供了使用压缩感测的图像和视频压缩和解压缩的系统和方法。 一种解压缩压缩图像的方法,其中具有多个压缩图像块的压缩图像和该方法在处理器上执行,包括选择压缩图像块,对所选压缩图像块进行熵解码,以及恢复相应的图像块 使用压缩感测恢复到解码的所选压缩图像块。
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