System and method for bit-allocation in video coding
    3.
    发明授权
    System and method for bit-allocation in video coding 有权
    视频编码中位分配的系统和方法

    公开(公告)号:US08406297B2

    公开(公告)日:2013-03-26

    申请号:US12553775

    申请日:2009-09-03

    IPC分类号: H04N7/26

    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。

    System and Method for Bit-Allocation in Video Coding
    4.
    发明申请
    System and Method for Bit-Allocation in Video Coding 有权
    视频编码中位分配的系统和方法

    公开(公告)号:US20100098162A1

    公开(公告)日:2010-04-22

    申请号:US12553775

    申请日:2009-09-03

    IPC分类号: H04N7/26

    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。

    System and method for securing media content
    5.
    发明授权
    System and method for securing media content 有权
    用于保护媒体内容的系统和方法

    公开(公告)号:US08913779B2

    公开(公告)日:2014-12-16

    申请号:US13009780

    申请日:2011-01-19

    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。

    System and Method for Image Authentication
    6.
    发明申请
    System and Method for Image Authentication 有权
    图像认证的系统和方法

    公开(公告)号:US20120076422A1

    公开(公告)日:2012-03-29

    申请号:US12892148

    申请日:2010-09-28

    IPC分类号: G06K9/46

    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。

    Video signature based on image hashing and shot detection
    7.
    发明授权
    Video signature based on image hashing and shot detection 有权
    基于图像散列和镜头检测的视频签名

    公开(公告)号:US08837769B2

    公开(公告)日:2014-09-16

    申请号:US13098042

    申请日:2011-04-29

    IPC分类号: G06K9/00 G06K9/62 G06F17/30

    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。

    System and method for image authentication
    8.
    发明授权
    System and method for image authentication 有权
    用于图像认证的系统和方法

    公开(公告)号:US08483427B2

    公开(公告)日:2013-07-09

    申请号:US12892148

    申请日:2010-09-28

    IPC分类号: G06K9/62

    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。

    Video Signature Based on Image Hashing and Shot Detection
    9.
    发明申请
    Video Signature Based on Image Hashing and Shot Detection 有权
    基于图像哈希和镜头检测的视频签名

    公开(公告)号:US20120087583A1

    公开(公告)日:2012-04-12

    申请号:US13098042

    申请日:2011-04-29

    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。

    System and Method for Securing Media Content
    10.
    发明申请
    System and Method for Securing Media Content 有权
    保护媒体内容的系统和方法

    公开(公告)号:US20110188703A1

    公开(公告)日:2011-08-04

    申请号:US13009780

    申请日:2011-01-19

    IPC分类号: G06F21/24 G06K9/00

    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。