Method and apparatus for providing reduced reference techniques for low frequency watermarking
    1.
    发明授权
    Method and apparatus for providing reduced reference techniques for low frequency watermarking 有权
    用于为低频水印提供缩减参考技术的方法和装置

    公开(公告)号:US07769199B2

    公开(公告)日:2010-08-03

    申请号:US10872963

    申请日:2004-06-21

    CPC classification number: G06T1/005 G06T2201/0065 G06T2201/0081

    Abstract: A method and apparatus for using a reference in a watermarking application is disclosed. Watermarked content and a reduced resolution reference are registered such that registration parameters are calculated. The watermarked content is processed using the registration parameters. A watermark is recovered using the processed watermarked content and the reduced resolution reference.

    Abstract translation: 公开了一种在水印应用中使用参考的方法和装置。 注册水印内容和降低的分辨率参考,使得计算注册参数。 使用注册参数处理加水印的内容。 使用经处理的水印内容和降低的分辨率参考来恢复水印。

    Method and apparatus for providing reduced reference techniques for low frequency watermarking
    2.
    发明申请
    Method and apparatus for providing reduced reference techniques for low frequency watermarking 有权
    用于为低频水印提供缩减参考技术的方法和装置

    公开(公告)号:US20050018875A1

    公开(公告)日:2005-01-27

    申请号:US10872963

    申请日:2004-06-21

    CPC classification number: G06T1/005 G06T2201/0065 G06T2201/0081

    Abstract: A method and apparatus for using a reference in a watermarking application is disclosed. Watermarked content and a reduced resolution reference are registered such that registration parameters are calculated. The watermarked content is processed using the registration parameters. A watermark is recovered using the processed watermarked content and the reduced resolution reference.

    Abstract translation: 公开了一种在水印应用中使用参考的方法和装置。 注册水印内容和降低的分辨率参考,使得计算注册参数。 使用注册参数处理加水印的内容。 使用经处理的水印内容和降低的分辨率参考来恢复水印。

    Secure robust high-fidelity watermarking
    3.
    发明授权
    Secure robust high-fidelity watermarking 有权
    安全可靠的高保真水印

    公开(公告)号:US07298865B2

    公开(公告)日:2007-11-20

    申请号:US10124995

    申请日:2002-04-18

    CPC classification number: G06T1/0085 G06T1/0071

    Abstract: For each small image region (in space and time), a measure of perceptual transparence of each of a set of possible watermark carrier modulations is used to choose a subset of such modulations, from which a secure random number generator selects, for each image region, a single carrier, modulations of which carry the watermark data.

    Abstract translation: 对于每个小图像区域(空间和时间),使用一组可能的水印载波调制中的每一个的感知透明度的度量来选择这样的调制的子集,安全随机数发生器从该子集中为每个图像区域 ,一个载波,其中携带水印数据的调制。

    FOOD RECOGNITION USING VISUAL ANALYSIS AND SPEECH RECOGNITION
    6.
    发明申请
    FOOD RECOGNITION USING VISUAL ANALYSIS AND SPEECH RECOGNITION 有权
    食品识别使用视觉分析和语音识别

    公开(公告)号:US20100173269A1

    公开(公告)日:2010-07-08

    申请号:US12683124

    申请日:2010-01-06

    CPC classification number: G09B19/0092

    Abstract: A method and system for analyzing at least one food item on a food plate is disclosed. A plurality of images of the food plate is received by an image capturing device. A description of the at least one food item on the food plate is received by a recognition device. The description is at least one of a voice description and a text description. At least one processor extracts a list of food items from the description; classifies and segments the at least one food item from the list using color and texture features derived from the plurality of images; and estimates the volume of the classified and segmented at least one food item. The processor is also configured to estimate the caloric content of the at least one food item.

    Abstract translation: 公开了一种用于分析食品板上的至少一种食品的方法和系统。 食品牌的多个图像由图像捕获装置接收。 对食品牌上的至少一种食品的描述由识别装置接收。 描述是语音描述和文本描述中的至少一个。 至少一个处理器从描述中提取食物列表; 使用从多个图像导出的颜色和纹理特征来对列表中的至少一个食物项进行分类和分割; 并估计分类和分段的至少一种食品的体积。 处理器还被配置为估计至少一个食物的热量含量。

    CONTENT-BASED MATCHING OF VIDEOS USING LOCAL SPATIO-TEMPORAL FINGERPRINTS
    7.
    发明申请
    CONTENT-BASED MATCHING OF VIDEOS USING LOCAL SPATIO-TEMPORAL FINGERPRINTS 有权
    使用本地空间指纹图像进行基于内容的视频匹配

    公开(公告)号:US20100049711A1

    公开(公告)日:2010-02-25

    申请号:US12262463

    申请日:2008-10-31

    Abstract: A computer implemented method computer implemented method for deriving a fingerprint from video data is disclosed, comprising the steps of receiving a plurality of frames from the video data; selecting at least one key frame from the plurality of frames, the at least one key frame being selected from two consecutive frames of the plurality of frames that exhibiting a maximal cumulative difference in at least one spatial feature of the two consecutive frames; detecting at least one 3D spatio-temporal feature within the at least one key frame; and encoding a spatio-temporal fingerprint based on mean luminance of the at least one 3D spatio-temporal feature. The least one spatial feature can be intensity. The at least one 3D spatio-temporal feature can be at least one Maximally Stable Volume (MSV). Also disclosed is a method for matching video data to a database containing a plurality of video fingerprints of the type described above, comprising the steps of calculating at least one fingerprint representing at least one query frame from the video data; indexing into the database using the at least one calculated fingerprint to find a set of candidate fingerprints; applying a score to each of the candidate fingerprints; selecting a subset of candidate fingerprints as proposed frames by rank ordering the candidate fingerprints; and attempting to match at least one fingerprint of at least one proposed frame based on a comparison of gradient-based descriptors associated with the at least one query frame and the at least one proposed frame.

    Abstract translation: 公开了一种用于从视频数据导出指纹的计算机实现方法计算机实现方法,包括以下步骤:从视频数据中接收多个帧; 从所述多个帧中选择至少一个关键帧,所述至少一个关键帧从在所述两个连续帧的至少一个空间特征中呈现最大累积差异的所述多个帧中的两个连续帧中选择; 检测所述至少一个关键帧内的至少一个3D空间 - 时间特征; 以及基于所述至少一个3D时空特征的平均亮度对时空指纹进行编码。 至少一个空间特征可以是强度。 至少一个3D空间 - 时间特征可以是至少一个最大稳定体积(MSV)。 还公开了一种用于将视频数据与包含上述类型的多个视频指纹的数据库进行匹配的方法,包括以下步骤:从视频数据计算表示至少一个查询帧的至少一个指纹; 使用所述至少一个计算的指纹索引到数据库中以找到一组候选指纹; 对每个候选指纹应用分数; 通过对候选指纹进行排序来选择候选指纹的子集作为所提出的帧; 以及基于与所述至少一个查询帧和所述至少一个所提出的帧相关联的基于梯度的描述符的比较,尝试匹配至少一个所提出的帧的至少一个指纹。

    CAMCORDER JAMMING TECHNIQUES USING HIGH FRAME RATE DISPLAYS
    8.
    发明申请
    CAMCORDER JAMMING TECHNIQUES USING HIGH FRAME RATE DISPLAYS 有权
    CAMCORDER JAMMING技术使用高帧率显示

    公开(公告)号:US20090129746A1

    公开(公告)日:2009-05-21

    申请号:US11943645

    申请日:2007-11-21

    CPC classification number: H04N5/913 H04N2005/91385

    Abstract: A method and projection system for distorting a recording of a plurality of projected frames is disclosed, comprising a high frame rate display configured to impose a modulation on the projected frames at a frequency that is above the critical fusion frequency of the human visual system, wherein the modulation is of one of shutter width relative to shutter spacing, brightness, frame period, and pseudo-rastering. The high frame rate display may be a tonal display. The projection system may further include hardware for producing low frame rate imagery; an input buffer operatively coupled to said hardware for receiving one of a serial bit stream or blocks of data so as to store at least a predetermined portion of a frame; and a sub-frame generator operatively coupled to said input buffer and to said high frame rate tonal display for applying mathematical modulation techniques to said at least a predetermined portion of a frame.

    Abstract translation: 公开了一种用于扭曲多个投影帧的记录的方法和投影系统,包括:高帧速率显示器,被配置为以高于人类视觉系统的临界融合频率的频率对投影帧施加调制,其中 调制是相对于快门间隔,亮度,帧周期和伪随机的快门宽度之一。 高帧率显示可以是色调显示。 投影系统还可以包括用于产生低帧率图像的硬件; 操作地耦合到所述硬件的输入缓冲器,用于接收串行比特流或数据块中的一个,以便存储帧的至少预定部分; 以及子帧发生器,其可操作地耦合到所述输入缓冲器和所述高帧速率色调显示器,用于将数学调制技术应用于帧的至少预定部分。

    Method and apparatus for assessing the visibility of differences between two signal sequences
    9.
    发明授权
    Method and apparatus for assessing the visibility of differences between two signal sequences 有权
    用于评估两个信号序列之间差异的可见性的方法和装置

    公开(公告)号:US06360022B1

    公开(公告)日:2002-03-19

    申请号:US09512412

    申请日:2000-02-24

    CPC classification number: G06T15/50 G06T5/50 H04N19/63

    Abstract: A method and apparatus for assessing the visibility of differences between two input signal sequences, e.g., image sequences is disclosed. The apparatus comprises a perceptual metric generator having an input signal processing section, a luminance processing section, a chrominance processing section and a perceptual metric generating section. The luminance processing section simultaneously processes at least two image fields, so as to provide spatio-temporal channels whose calibration is independent of pure-spatial and pure-temporal channels.

    Abstract translation: 公开了一种用于评估两个输入信号序列(例如,图像序列)之间的差异的可视性的方法和装置。 该装置包括具有输入信号处理部分,亮度处理部分,色度处理部分和感知度量产生部分的感知度量发生器。 亮度处理部分同时处理至少两个图像场,以便提供校准独立于纯空间和纯时间信道的时空信道。

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