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    Watermarking Digital Images to Increase Bit Depth
    12.
    发明申请
    Watermarking Digital Images to Increase Bit Depth 有权
    水印数字图像增加位深度

    公开(公告)号：US20160321772A1

    公开(公告)日：2016-11-03

    申请号：US15206606

    申请日：2016-07-11

    Applicant: GoPro, Inc.

    Inventor： Balineedu Chowdary Adsumilli

    IPC: G06T1/00 ,  H04N19/467 ,  H04N5/262 ,  H04N1/32 ,  H04N1/21

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0202 ,  H04N1/2112 ,  H04N1/32197 ,  H04N1/32251 ,  H04N1/32277 ,  H04N1/32309 ,  H04N5/2621 ,  H04N19/467 ,  H04N2201/0084 ,  H04N2201/3233

    Abstract: Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.

    Abstract translation: 水印数据被转换为水印系数，其可以通过将图像转换为频域而嵌入到图像中，将水印嵌入对应于中频分量的图像系数中，并将修改的系数转换为空间域。 通过将修正图像转换为频域，从图像系数中提取水印系数，并根据水印系数确定水印数据，从修改图像中提取水印数据。 水印数据可以是截断的图像数据位，例如截断的最低有效数据位。 在从水印提取之后，截断的图像数据位可以与表示原始图像的数据位组合，以增加图像的位深度。 水印数据可以包括对应于视频帧的音频数据部分，时间上靠近视频帧的参考帧，高频内容，传感器校准信息或其他图像数据。

    AUDIO WATERMARK IN A DIGITAL VIDEO
    13.
    发明申请
    AUDIO WATERMARK IN A DIGITAL VIDEO 有权
    音频水印在数字视频中

    公开(公告)号：US20160210971A1

    公开(公告)日：2016-07-21

    申请号：US14598134

    申请日：2015-01-15

    Applicant: GoPro, Inc.

    Inventor： Balineedu Chowdary Adsumilli

    IPC: G10L19/018 ,  G06T1/00 ,  H04N19/60 ,  G11B27/10 ,  H04N19/18 ,  H04N19/48 ,  H04N19/182 ,  H04N19/467 ,  H04N1/32

    CPC classification number: G10L19/018 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0202 ,  H04N1/32187 ,  H04N1/32203 ,  H04N1/32277 ,  H04N19/467 ,  H04N19/48

    Abstract: Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.

    Abstract translation: 水印数据被转换为水印系数，其可以通过将图像转换为频域而嵌入到图像中，将水印嵌入对应于中频分量的图像系数中，并将修改的系数转换为空间域。 通过将修正图像转换为频域，从图像系数中提取水印系数，并根据水印系数确定水印数据，从修改图像中提取水印数据。 水印数据可以是截断的图像数据位，例如截断的最低有效数据位。 在从水印提取之后，截断的图像数据位可以与表示原始图像的数据位组合，以增加图像的位深度。 水印数据可以包括对应于视频帧的音频数据部分，时间上靠近视频帧的参考帧，高频内容，传感器校准信息或其他图像数据。

    WATERMARKING DIGITAL IMAGES TO INCREASE BIT DEPTH
    14.
    发明申请
    WATERMARKING DIGITAL IMAGES TO INCREASE BIT DEPTH 有权
    水印数字图像增加位深度

    公开(公告)号：US20160210717A1

    公开(公告)日：2016-07-21

    申请号：US14598132

    申请日：2015-01-15

    Applicant: GoPro, Inc.

    Inventor： Balineedu Chowdary Adsumilli

    IPC: G06T1/00 ,  H04N5/262 ,  H04N1/32

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0202 ,  H04N1/2112 ,  H04N1/32197 ,  H04N1/32251 ,  H04N1/32277 ,  H04N1/32309 ,  H04N5/2621 ,  H04N19/467 ,  H04N2201/0084 ,  H04N2201/3233

    Abstract: Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.

    Abstract translation: 水印数据被转换为水印系数，其可以通过将图像转换为频域而嵌入到图像中，将水印嵌入对应于中频分量的图像系数中，并将修改的系数转换为空间域。 通过将修正图像转换为频域，从图像系数中提取水印系数，并根据水印系数确定水印数据，从修改图像中提取水印数据。 水印数据可以是截断的图像数据位，例如截断的最低有效数据位。 在从水印提取之后，截断的图像数据位可以与表示原始图像的数据位组合，以增加图像的位深度。 水印数据可以包括对应于视频帧的音频数据部分，时间上靠近视频帧的参考帧，高频内容，传感器校准信息或其他图像数据。

    Image processing apparatus and non-transitory computer readable medium
    17.
    发明授权
    Image processing apparatus and non-transitory computer readable medium 有权
    图像处理装置和非暂时性计算机可读介质

    公开(公告)号：US08818087B2

    公开(公告)日：2014-08-26

    申请号：US13665171

    申请日：2012-10-31

    Applicant: Fuji Xerox Co., Ltd.

    Inventor： Atsushi Itoh

    IPC: G06K9/34

    CPC classification number: G06T1/0028 ,  G06T2201/0202

    Abstract: An image processing apparatus includes a representative color calculation unit, a color displacement calculation unit, and a similarity calculation unit. The representative color calculation unit calculates a representative color which is representative of colors in a first region having a predetermined size in an image. The color displacement calculation unit calculates, as a color displacement, a difference between the representative color calculated by the representative color calculation unit and a color in a target second region in the first region. The similarity calculation unit calculates similarity between the color displacement calculated by the color displacement calculation unit and a predetermined color displacement in an information image representing information embedded in the image.

    Abstract translation: 图像处理装置包括代表颜色计算单元，颜色位移计算单元和相似度计算单元。 代表颜色计算单元计算代表在图像中具有预定尺寸的第一区域中的颜色的代表颜色。 颜色位移计算单元计算由代表颜色计算单元计算的代表颜色与第一区域中的目标第二区域中的颜色之间的颜色位移。 相似度计算单元计算由颜色位移计算单元计算的颜色位移与表示嵌入在图像中的信息的信息图像中的预定颜色位移之间的相似度。

    Watermark embedding and detecting methods, systems devices and components
    20.
    发明授权
    Watermark embedding and detecting methods, systems devices and components 失效
    水印嵌入和检测方法，系统设备和组件

    公开(公告)号：US08374384B2

    公开(公告)日：2013-02-12

    申请号：US12659364

    申请日：2010-03-05

    Applicant: Xiao-Ping Zhang ,  Kan Li

    Inventor： Xiao-Ping Zhang ,  Kan Li

    IPC: G06K9/00 ,  G06K9/36

    CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0202

    Abstract: Method determining lookup table (“LUT”) for embedding watermark. For each quantization cell, calculating probabilities that signal point falls into cell. Selecting cell by probabilities. Setting LUT value to watermark value with largest probability, subject to run constraint. For remaining cells, repeating selecting and setting steps. Other method determining quantization ensemble by calculating probability density function for signal points where the watermark value to be embedded. Distortion and robustness functions are formulated. Given robustness or distortion is selected. Functions optimized, and ensemble of quantizers determined with parameters that comply. Other method quantizing in association with lossy compression. Strength of compression determined. Adapting strength of watermark with strength of compression by a mapping. Other method selecting points for embedding watermark. Determine threshold between large and small signal points using statistical method. Select signal points for embedding according to threshold. Also, processors, computer programs, and systems.

    Abstract translation: 用于嵌入水印的方法确定查找表（LUT）。 对于每个量化单元，计算信号点落入单元格的概率。 按概率选择细胞。 将LUT值设置为具有最大概率的水印值，受制于运行约束。 对于剩余的单元格，重复选择和设置步骤。 其他方法通过对要嵌入的水印值的信号点计算概率密度函数来确定量化集合。 制定失真和鲁棒性功能。 给定鲁棒性或失真。 功能优化，量化器集合由符合的参数确定。 与有损压缩相关联的其他方法量化。 压缩强度确定。 通过映射适应压缩强度的水印强度。 嵌入水印的其他方法选择点。 使用统计方法确定大小信号点之间的阈值。 根据阈值选择嵌入信号点。 另外，处理器，计算机程序和系统。

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