PERCEPTABILITY MODEL APPLIED TO WATERMARK SIGNALS
    3.
    发明申请
    PERCEPTABILITY MODEL APPLIED TO WATERMARK SIGNALS 有权
    适用于水印信号的识别模型

    公开(公告)号:US20090087018A1

    公开(公告)日:2009-04-02

    申请号:US12057745

    申请日:2008-03-28

    IPC分类号: G06K9/00

    摘要: This document relates generally to digital watermarking. One claim recites a method including: obtaining data representing visual media; determining a model through iteratively embedding a digital watermark signal in the data; and embedding the digital watermark signal in the data according to the model. The model maximizes robustness of the digital watermark signal while minimizing perceptibility of the digital watermark signal when the signal is embedded in the data. A new embedding form or embedding mask is created after each embedding iteration. Of course, other combinations are described and claimed as well.

    摘要翻译: 本文件一般涉及数字水印。 一个声明提出了一种方法,包括:获取表示视觉媒体的数据; 通过在数据中迭代地嵌入数字水印信号来确定模型; 并根据模型将数字水印信号嵌入到数据中。 该模型使数字水印信号的鲁棒性最大化,同时使信号嵌入数据时最小化数字水印信号的感知能力。 每次嵌入迭代后都会创建一个新的嵌入表单或嵌入掩码。 当然,也描述和要求保护其他组合。

    Perceptability model applied to watermark signals
    5.
    发明授权
    Perceptability model applied to watermark signals 有权
    感知模型应用于水印信号

    公开(公告)号:US08098882B2

    公开(公告)日:2012-01-17

    申请号:US12057745

    申请日:2008-03-28

    IPC分类号: G06K9/00

    摘要: This document relates generally to digital watermarking. One claim recites a method including: obtaining data representing visual media; determining a model through iteratively embedding a digital watermark signal in the data; and embedding the digital watermark signal in the data according to the model. The model maximizes robustness of the digital watermark signal while minimizing perceptibility of the digital watermark signal when the signal is embedded in the data. A new embedding form or embedding mask is created after each embedding iteration. Of course, other combinations are described and claimed as well.

    摘要翻译: 本文件一般涉及数字水印。 一个声明提出了一种方法,包括:获取表示视觉媒体的数据; 通过在数据中迭代地嵌入数字水印信号确定模型; 并根据模型将数字水印信号嵌入到数据中。 该模型使数字水印信号的鲁棒性最大化,同时使信号嵌入数据时最小化数字水印信号的感知能力。 每次嵌入迭代后都会创建一个新的嵌入表单或嵌入掩码。 当然,也描述和要求保护其他组合。

    Human perceptual model applied to rendering of watermarked signals
    6.
    发明授权
    Human perceptual model applied to rendering of watermarked signals 有权
    人类感知模型应用于水印信号的渲染

    公开(公告)号:US07352878B2

    公开(公告)日:2008-04-01

    申请号:US10826970

    申请日:2004-04-15

    IPC分类号: G06K9/00

    摘要: A digital watermarking system uses a model of a rendering device to take into account the impact of the rendering device on visual or auditory quality of the watermarked signal. For visual content, a reference image and watermarked image are passed through the model and then supplied to a visual quality metric that assesses the visibility of the watermark. The digital watermark embedding is adjusted iteratively with each pass through this process to produce a watermarked signal that has the desired visual quality.

    摘要翻译: 数字水印系统使用渲染设备的模型来考虑渲染设备对水印信号的视觉或听觉质量的影响。 对于视觉内容,参考图像和水印图像通过模型,然后提供给用于评估水印可见性的视觉质量度量。 每次通过该过程,迭代地调整数字水印嵌入,以产生具有期望视觉质量的水印信号。

    SMARTPHONE-BASED METHODS AND SYSTEMS
    7.
    发明申请
    SMARTPHONE-BASED METHODS AND SYSTEMS 审中-公开
    基于SMARTPHONE的方法和系统

    公开(公告)号:US20150286873A1

    公开(公告)日:2015-10-08

    申请号:US14244287

    申请日:2014-04-03

    IPC分类号: G06K9/00

    摘要: Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement enables a content creator to select software with which that creator's content should be rendered—assuring continuity between artistic intention and delivery. Another utilizes a device camera to identify nearby subjects, and take actions based thereon. Others rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some technologies concern improvements to the user interfaces associated with such devices. For example, some arrangements enable discovery of both audio and visual content, without any user requirement to switch modes. Other technologies involve use of these devices in connection with shopping, text entry, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern computational photography. A great variety of other features and arrangements are also detailed.

    摘要翻译: 公开了涉及便携式设备(例如,智能电话和平板电脑)的安排。 一种安排使得内容创作者可以选择应该呈现创作者内容的软件,从而确保艺术意图与传递之间的连续性。 另一个使用设备相机识别附近的主题,并基于此采取行动。 其他人依靠近场芯片(RFID)识别对象,或者识别音频流(例如,音乐,语音)。 一些技术涉及与这种设备相关联的用户界面的改进。 例如,一些布置使得能够发现音频和视觉内容,而无需用户切换模式的要求。 其他技术涉及使用这些设备与购物,文本输入和基于视觉的发现相关联。 还有其他改进是建筑性质的,例如涉及基于证据的状态机和黑板系统。 其他技术也涉及计算机摄影。 还详细介绍了各种各样的其他功能和安排。

    Adjusting an electronic camera to acquire an image

    公开(公告)号:US06546116B2

    公开(公告)日:2003-04-08

    申请号:US10002352

    申请日:2001-11-13

    IPC分类号: G06K900

    摘要: The present invention provides a mechanism for automatically setting the exposure time and gain of an electronic camera so that the acquired image has improved characteristics for the detection of a digital watermark. With the present invention the exposure time and gain of an electronic camera are set by first directing the camera at a test target with the camera's controls set to a default set of values. The system then calculates a histogram of the luminance values of the pixels in the image. Next characteristic values from the histogram such as the peak value, the centroid value, the RMS value, the median value, etc. are calculated. One or more of the characteristic values of the histogram are then applied as an index or pointer to values of pre-established settings that are stored in a table. Values from the table are used to set the exposure time and/or gain of the camera. In some embodiments, the variance of the luminance histogram is also measured and used to index data from the table.

    Variable processing of both image and audio data based on processor utilization
    10.
    发明授权
    Variable processing of both image and audio data based on processor utilization 有权
    基于处理器利用率对图像和音频数据进行可变处理

    公开(公告)号:US09202254B2

    公开(公告)日:2015-12-01

    申请号:US13552337

    申请日:2012-07-18

    摘要: Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement enables a content creator to select software with which that creator's content should be rendered—assuring continuity between artistic intention and delivery. Another utilizes a device camera to identify nearby subjects, and take actions based thereon. Others rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some technologies concern improvements to the user interfaces associated with such devices. Others involve use of these devices in connection with shopping, text entry, sign language interpretation, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern use of linked data in portable devices—some of which exploit GPU capabilities. Still other technologies concern computational photography. A great variety of other features and arrangements are also detailed.

    摘要翻译: 公开了涉及便携式设备(例如,智能电话和平板电脑)的安排。 一种安排使得内容创作者可以选择应该呈现创作者内容的软件,从而确保艺术意图与传递之间的连续性。 另一个使用设备相机识别附近的主题,并基于此采取行动。 其他人依靠近场芯片(RFID)识别对象,或者识别音频流(例如,音乐,语音)。 一些技术涉及与这样的设备相关联的用户界面的改进。 其他涉及使用这些设备与购物,文本输入,手语解释和基于视觉的发现相关联。 还有其他改进是建筑性质的,例如涉及基于证据的状态机和黑板系统。 其他技术还涉及在便携式设备中使用链接数据,其中一些利用了GPU功能。 其他技术还涉及计算机摄影。 还详细介绍了各种各样的其他功能和安排。