Method for two-step temporal video registration
    1.
    发明授权
    Method for two-step temporal video registration 有权
    两步骤时间视频注册方法

    公开(公告)号:US08718404B2

    公开(公告)日:2014-05-06

    申请号:US13138296

    申请日:2010-02-05

    IPC分类号: G06K9/00 G06K9/32

    CPC分类号: G06K9/00711 G06F17/30781

    摘要: The invention relates to a method for temporal video registration of a target video with a master video comprising steps of automatic selection a plurality of key frames for target video and a plurality of key frames for master video; sparse registration of a plurality of key frames for target video with a plurality of key frames for master video; dense registration of frames of target video with frames of master video belonging to a temporal segment including registered key frames.

    摘要翻译: 本发明涉及一种用于主视频的目标视频的时间视频注册的方法,包括自动选择用于目标视频的多个关键帧和用于主视频的多个关键帧的步骤; 用于主视频的多个关键帧的目标视频的多个关键帧的稀疏注册; 将目标视频的帧与具有属于包括已登记的关键帧的时间段的主视频的帧进行密集登记。

    METHOD FOR TWO-STEP TEMPORAL VIDEO REGISTRATION
    2.
    发明申请
    METHOD FOR TWO-STEP TEMPORAL VIDEO REGISTRATION 有权
    两步时间视频注册方法

    公开(公告)号:US20110311135A1

    公开(公告)日:2011-12-22

    申请号:US13138296

    申请日:2010-02-05

    IPC分类号: G06K9/68 G06K9/00

    CPC分类号: G06K9/00711 G06F17/30781

    摘要: The invention relates to a method for temporal video registration of a target video with a master video comprising steps of automatic selection a plurality of key frames for target video and a plurality of key frames for master video; sparse registration of a plurality of key frames for target video with a plurality of key frames for master video; dense registration of frames of target video with frames of master video belonging to a temporal segment including registered key frames.

    摘要翻译: 本发明涉及一种用于主视频的目标视频的时间视频注册的方法,包括自动选择用于目标视频的多个关键帧和用于主视频的多个关键帧的步骤; 用于主视频的多个关键帧的目标视频的多个关键帧的稀疏注册; 将目标视频的帧与具有属于包括已登记的关键帧的时间段的主视频的帧进行密集注册。

    Methods and apparatuses for selective data encryption
    4.
    发明授权
    Methods and apparatuses for selective data encryption 有权
    选择性数据加密的方法和装置

    公开(公告)号:US08625791B2

    公开(公告)日:2014-01-07

    申请号:US12737260

    申请日:2009-06-30

    IPC分类号: H04N7/167

    摘要: A method of encryption, using an encryption key K with key length k, of at least one message M comprising uniformly distributed symbols, k bits are encrypted of messages at least k bits long, while shorter messages are lengthened, e.g. by padding or concatenation, to obtain a lengthened message at least k bits long before encryption. The encryption efficiency is thus optimized while the encryption security is retained. The encryption method is particularly suitable for JPEG2000 encoded packets comprising a message M. Also provided are an encryption apparatus, a decryption method and a decryption apparatus.

    摘要翻译: 使用包括均匀分布符号的至少一个消息M的具有密钥长度k的加密密钥K的加密方法,k比特被加密至少k比特长的消息,而较短的消息被延长,例如, 通过填充或级联,在加密之前至少k位获得延长的消息。 因此,在保护加密安全性的同时优化加密效率。 加密方法特别适用于包含消息M的JPEG2000编码分组。还提供了加密装置,解密方法和解密装置。

    METHODS AND APPARATUSES FOR SELECTIVE DATA ENCRYPTION
    5.
    发明申请
    METHODS AND APPARATUSES FOR SELECTIVE DATA ENCRYPTION 有权
    选择性数据加密的方法和设备

    公开(公告)号:US20110119480A1

    公开(公告)日:2011-05-19

    申请号:US12737260

    申请日:2009-06-30

    IPC分类号: H04L9/14

    摘要: A method of encryption, using an encryption key K with key length k, of at least one message M comprising uniformly distributed symbols, k bits are encrypted of messages at least k bits long, while shorter messages are lengthened, e.g. by padding or concatenation, to obtain a lengthened message at least k bits long before encryption. The encryption efficiency is thus optimized while the encryption security is retained. The encryption method is particularly suitable for JPEG2000 encoded packets comprising a message M. Also provided are an encryption apparatus, a decryption method and a decryption apparatus.

    摘要翻译: 使用包括均匀分布符号的至少一个消息M的具有密钥长度k的加密密钥K的加密方法,k比特被加密至少k比特长的消息,而较短的消息被延长,例如, 通过填充或级联,在加密之前至少k位获得延长的消息。 因此,在保护加密安全性的同时优化加密效率。 加密方法特别适用于包含消息M的JPEG2000编码分组。还提供了加密装置,解密方法和解密装置。

    METHODS AND DEVICES FOR SELECTIVE FORMAT-PRESERVING DATA ENCRYPTION
    8.
    发明申请
    METHODS AND DEVICES FOR SELECTIVE FORMAT-PRESERVING DATA ENCRYPTION 有权
    选择性格式保存数据加密的方法和设备

    公开(公告)号:US20130064368A1

    公开(公告)日:2013-03-14

    申请号:US13611837

    申请日:2012-09-12

    IPC分类号: H04N7/167

    摘要: Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream. If a first unit in the data stream is to be encrypted, it is encrypted and the encryption is put into a further unit, preferably in the data stream. A substitution unit is generated and put in the place of the first unit; if necessary, at least one header value is taken from the first unit for use in the substitution unit. A decryptor receives the encrypted data stream, extracts and decrypts the further unit and replaces the substitution unit with a regenerated first unit.

    摘要翻译: 文件的选择性数据加密,特别是H.264 / MPEG-4AVC数据流。 如果要对数据流中的第一单元进行加密,则将其加密,并将加密放入另一个单元中,最好在数据流中。 生成替代单元并置于第一单元的位置; 如果需要,从用于替代单元的第一单元获取至少一个标题值。 解密器接收加密的数据流,提取并解密另外的单元,并用再生的第一单元替换替换单元。