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101.发明申请公开(公告)号：US20160293172A1
公开(公告)日：2016-10-06
申请号：US15090279
申请日：2016-04-04
Applicant: Digimarc Corporation
Inventor： Ravi K. Sharma , Brett A. Bradley , Yang Bai , Shankar Thagadur Shivappa , Ajith Kamath , Aparna Gurijala , Tomas Filler , David A. Cushman
IPC: G10L19/018 , G10L19/02
CPC classification number: G10L19/018 , G10L19/02
Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.
Abstract translation: 音频信号处理增强了音频水印嵌入和检测过程。 音频信号处理包括基于分类的音频分类和适应水印嵌入和检测。 音频水印设计的进步包括自适应水印信号结构数据协议，感知模型和插入方法。 感知和鲁棒性评估集成到音频水印嵌入中，以优化相对于原始信号的音频质量，并优化鲁棒性或数据容量。 这些方法适用于音频嵌入器和检测器配置中的音频段，以支持实时操作。 特征提取和匹配也用于适应音频水印嵌入和检测。
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公开(公告)号：US09445763B2
公开(公告)日：2016-09-20
申请号：US14289364
申请日：2014-05-28
Applicant: Digimarc Corporation
Inventor： Bruce L. Davis , Tony F. Rodriguez , William Y. Conwell , Shankar Thagadur Shivappa , Ravi K. Sharma , Richard F. Gibson
IPC: G10L21/00 , A61B5/00 , G06F19/00 , G06T5/40 , G06T7/00 , G06T7/40 , A61B5/103 , G06F17/30 , G10L19/018
CPC classification number: A61B5/441 , A61B5/0075 , A61B5/0077 , A61B5/1032 , A61B5/1034 , A61B5/444 , A61B5/445 , A61B5/4806 , A61B5/6898 , A61B5/7246 , A61B5/7278 , A61B5/7282 , A61B5/7425 , A61B5/743 , A61B5/7485 , A61B2576/02 , G06F17/30424 , G06F17/30554 , G06F19/00 , G06F19/3418 , G06T5/40 , G06T7/0012 , G06T2207/30088 , G10L19/018 , G16H50/20 , G16H50/70 , Y02A90/26
Abstract: Audio sounds are captured from a subject's body, e.g., using a smartphone or a worn array of microphones. Plural features are derived from the captured audio, and serve as fingerprint information. One such feature may be a time interval over which a threshold part of spectral energy in the audio is expressed. Another may be a frequency bandwidth within which a second threshold part of the spectral energy is expressed. Such fingerprint information is provided to a knowledge base that contains reference fingerprint data and associated metadata. The knowledge base matches the fingerprint with reference fingerprint data, and provides associated metadata in return—which can comprise diagnostic information related to the captured sounds. In some arrangements, an audio signal or pressure waveform stimulates the body at one location, and is sensed at another, to discern information about the intervening transmission medium. A great variety of other features and arrangements are also detailed.
Abstract translation: 音频声音从被摄体的身体捕获，例如使用智能电话或佩带的麦克风阵列。 多个特征源自捕获的音频，并用作指纹信息。 一个这样的特征可以是音频中的频谱能量的阈值部分被表达的时间间隔。 另一个可以是其中表示频谱能量的第二阈值部分的频率带宽。 这样的指纹信息被提供给包含参考指纹数据和相关元数据的知识库。 知识库将指纹与参考指纹数据相匹配，并提供返回的相关元数据，其可以包括与捕获的声音相关的诊断信息。 在一些布置中，音频信号或压力波形在一个位置刺激身体，并在另一个位置被感测，以辨别关于中间传输介质的信息。 还详细介绍了各种各样的其他功能和安排。
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公开(公告)号：US20160132747A1
公开(公告)日：2016-05-12
申请号：US14853408
申请日：2015-09-14
Applicant: Digimarc Corporation
Inventor： Ravi K. Sharma
CPC classification number: G06K9/4642 , G06F17/30256 , G06K9/38 , G06K9/4652 , G06K9/6201 , G06K9/6212 , G06T7/11 , H04M2250/52
Abstract: A multidimensional histogram is used to characterize an image (or object), and is used to identify candidate matches with one or more reference images (or objects). An exemplary implementation employs hue information for two of the dimensions, and a second derivative function based on luminance for a third dimension. The simplicity and speed of the detailed arrangements make them well suited for use with cell phones and other mobile devices, which can use the technology for image/object recognition, e.g., in visual search applications.
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公开(公告)号：US09325878B2
公开(公告)日：2016-04-26
申请号：US14660568
申请日：2015-03-17
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Ravi K. Sharma , Tony F. Rodriguez
CPC classification number: G06T1/005 , G06T1/0021 , G06T11/001 , G06T2201/0083 , H04N1/32144 , H04N1/32267 , H04N1/32309 , H04N1/6005 , H04N1/6008 , H04N2201/3228 , H04N2201/3233 , H04N2201/327
Abstract: This patent document relates generally to steganography and digital watermarking. One claim recites an apparatus comprising: memory for storing data representing an image or video, in which the data comprises first data corresponding to first color data, second data corresponding to second color data and third data corresponding to third color data, the image or video to host auxiliary information; a processor programmed for: weighting the first data, the second data and the third data according to at least the following two factors: i) a color direction associated with an expected embedding direction; and ii) expected image capture or signal processing; and determining from weighted first data, weighted second data and weighted third data, changes in one or more image or video attribute(s), in which the auxiliary information is conveyed through the changes. Of course, other claims and combinations are provided too.
Abstract translation: 该专利文献一般涉及隐写术和数字水印。 一个权利要求描述了一种装置，包括：用于存储表示图像或视频的数据的存储器，其中数据包括对应于第一颜色数据的第一数据，对应于第二颜色数据的第二数据和对应于第三颜色数据的第三数据，图像或视频 主办辅助资料; 至少根据以下两个因素对第一数据，第二数据和第三数据进行加权的处理器：i）与期望的嵌入方向相关联的颜色方向; 和ii）期望的图像捕获或信号处理; 以及从加权的第一数据，加权的第二数据和加权的第三数据确定一个或多个图像或视频属性中的变化，其中辅助信息通过变化传达。 当然，也提供其他权利要求和组合。
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公开(公告)号：US09202136B2
公开(公告)日：2015-12-01
申请号：US14251229
申请日：2014-04-11
Applicant: Digimarc Corporation
Inventor： Geoffrey B. Rhoads , Yang Bai , Tony F. Rodriguez , Eliot Rogers , Ravi K. Sharma , John D. Lord , Scott Long , Brian T. MacIntosh , John Stach , Robert G. Lyons , Kurt M. Eaton
Abstract: Methods and arrangements involving portable user devices such smartphones and wearable electronic devices are disclosed, as well as other devices and sensors distributed within an ambient environment. Some arrangements enable a user to perform an object recognition process in a computationally- and time-efficient manner. Other arrangements enable users and other entities to, either individually or cooperatively, register or enroll physical objects into one or more object registries on which an object recognition process can be performed. Still other arrangements enable users and other entities to, either individually or cooperatively, associate registered or enrolled objects with one or more items of metadata. A great variety of other features and arrangements are also detailed.
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Patent Agency Ranking
公开(公告)号：US09135520B2
公开(公告)日：2015-09-15
申请号：US14321415
申请日：2014-07-01
Applicant: Digimarc Corporation
Inventor： Ravi K. Sharma
CPC classification number: G06K9/4642 , G06F17/30256 , G06K9/38 , G06K9/4652 , G06K9/6201 , G06K9/6212 , G06T7/11 , H04M2250/52
Abstract: A multidimensional histogram is used to characterize an image (or object), and is used to identify candidate matches with one or more reference images (or objects). An exemplary implementation employs hue information for two of the dimensions, and a second derivative function based on luminance for a third dimension. The simplicity and speed of the detailed arrangements make them well suited for use with cell phones and other mobile devices, which can use the technology for image/object recognition, e.g., in visual search applications.
Abstract translation: 多维直方图用于表征图像（或对象），并用于识别与一个或多个参考图像（或对象）的候选匹配。 示例性实施方案使用两个维度的色调信息，以及基于第三维度的亮度的二阶导数函数。 详细布置的简单性和速度使得它们非常适用于可以使用用于图像/对象识别的技术的手机和其他移动设备，例如在视觉搜索应用中。
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公开(公告)号：US20150206268A1
公开(公告)日：2015-07-23
申请号：US14572478
申请日：2014-12-16
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Ravi K. Sharma
IPC: G06T1/00
CPC classification number: G06T1/0028 , G06K9/00 , G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0601 , H04N1/32309
Abstract: The present invention relate generally to digital watermarking and data hiding. One claim recites a method including: obtaining first data and second color data, the first color data and the second color data represent data from a color image signal or color video signal; obtaining a digital watermark pattern, the pattern aiding detection of a watermark message; separating the digital watermark pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, modifying the first color data by hiding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, modifying the second color data by hiding the second frequency components therein. Of course, other combinations and claims are provided too.
Abstract translation: 本发明一般涉及数字水印和数据隐藏。 一个权利要求描述了一种方法，包括：获得第一数据和第二颜色数据，第一颜色数据和第二颜色数据表示来自彩色图像信号或彩色视频信号的数据; 获取数字水印图案，水印消息的图案辅助检测; 将数字水印图案分离为第一频率分量和第二频率分量; 利用编程的电子处理器或电子处理电路，通过在其中隐藏第一频率分量来修改第一颜色数据; 以及利用编程的电子处理器或电子处理电路，通过在其中隐藏第二频率分量来修改第二颜色数据。 当然，也提供其他组合和权利要求。
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公开(公告)号：US20150168538A1
公开(公告)日：2015-06-18
申请号：US14562584
申请日：2014-12-05
Applicant: Digimarc Corporation
Inventor： Brett A. Bradley , Ravi K. Sharma , Shankar Thagadur Shivappa , John D. Lord
IPC: G01S5/24
CPC classification number: G01S5/18 , G01S5/0257
Abstract: Mobile device positioning employs various forms of audio signal structures and detection methodologies. In one method, detection of an audio signal from a first source enables construction of a signal to facilitate detection of an audio signal from another source. Signals detected from these sources enable positioning of the mobile device receiving those signals. Another method forms audio signals transmitted from audio sources so that they have parts that add constructively and parts that differentiate the sources to enable positioning. Another audio signal based positioning method adaptively switches among positioning methods so that positioning remains operative as a mobile device moves toward and away from the sources. Another method tracks positioning history, evaluates it for errors and performs error mitigation to improve accuracy. Various other positioning technologies are detailed as well.
Abstract translation: 移动设备定位采用各种形式的音频信号结构和检测方法。 在一种方法中，从第一源检测音频信号使得能够构建信号以便于检测来自另一个源的音频信号。 从这些源检测到的信号使得能够定位接收那些信号的移动设备。 另一种方法形成从音频源发送的音频信号，使得它们具有增加建设性的部分和区分源以实现定位的部分。 另一种基于音频信号的定位方法在定位方法之间自适应地切换，使得当移动设备朝向和远离源移动时，定位保持有效。 另一种方法跟踪定位历史，评估错误并执行错误减轻以提高准确性。 各种其他定位技术也是详细的。
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公开(公告)号：US08983120B2
公开(公告)日：2015-03-17
申请号：US13971595
申请日：2013-08-20
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Ravi K. Sharma , Tony F. Rodriguez
CPC classification number: G06T1/005 , G06T1/0021 , G06T11/001 , G06T2201/0083 , H04N1/32144 , H04N1/32267 , H04N1/32309 , H04N1/6005 , H04N1/6008 , H04N2201/3228 , H04N2201/3233 , H04N2201/327
Abstract: This patent document relates generally to steganography and digital watermarking. One claim recites a method comprising: receiving data representing image or video, in which the data comprises first data corresponding to first color data, second data corresponding to second color data and third data corresponding to third color data, the image or video to host auxiliary information; weighting the first data, the second data and the third data according to at least the following two factors: i) a color direction biased toward an expected embedding direction; and ii) expected image or video distortion introduced to the first data, the second data or the third data through image capture or signal processing; determining, from weighted first data, weighted second data and weighted third data, changes in an image or video attribute; and transforming the data representing image or video with the changes, in which the auxiliary information is conveyed through the changes. Of course, other claims are provided too.
Abstract translation: 该专利文献一般涉及隐写术和数字水印。 一个权利要求描述了一种方法，包括：接收表示图像或视频的数据，其中数据包括对应于第一颜色数据的第一数据，对应于第二颜色数据的第二数据和对应于第三颜色数据的第三数据，图像或视频到主机辅助 信息; 至少根据以下两个因素对第一数据，第二数据和第三数据进行加权：i）偏向预期嵌入方向的颜色方向; 以及ii）通过图像捕获或信号处理引入到第一数据，第二数据或第三数据的预期图像或视频失真; 从加权的第一数据确定加权的第二数据和加权的第三数据，图像或视频属性的改变; 并且通过变化来转换表示图像或视频的数据，其中通过改变传送辅助信息。 当然，也提供其他索赔。
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公开(公告)号：US20150010231A1
公开(公告)日：2015-01-08
申请号：US14321415
申请日：2014-07-01
Applicant: Digimarc Corporation
Inventor： Ravi K. Sharma
CPC classification number: G06K9/4642 , G06F17/30256 , G06K9/38 , G06K9/4652 , G06K9/6201 , G06K9/6212 , G06T7/11 , H04M2250/52
Abstract: A multidimensional histogram is used to characterize an image (or object), and is used to identify candidate matches with one or more reference images (or objects). An exemplary implementation employs hue information for two of the dimensions, and a second derivative function based on luminance for a third dimension. The simplicity and speed of the detailed arrangements make them well suited for use with cell phones and other mobile devices, which can use the technology for image/object recognition, e.g., in visual search applications.
Abstract translation: 多维直方图用于表征图像（或对象），并用于识别与一个或多个参考图像（或对象）的候选匹配。 示例性实施方案使用两个维度的色调信息，以及基于第三维度的亮度的二阶导数函数。 详细布置的简单性和速度使得它们非常适用于可以使用用于图像/对象识别的技术的手机和其他移动设备，例如在视觉搜索应用中。
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