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1.发明授权Full-color visibility model using CSF which varies spatially with local luminance 有权使用CSF的全色可见性模型，其在局部亮度上空间变化公开(公告)号：US09401001B2
公开(公告)日：2016-07-26
申请号：US14588636
申请日：2015-01-02
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Yang Bai , Kristyn R. Falkenstern , David Berfanger
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202
Abstract: The present disclosure relate generally to color science and digital watermarking. A full color visibility model has been developed which has good correlation to subjective visibility tests for color patches degraded with a watermark. A relatively better correlation can be achieved with a model that applies a luminance correction to the contrast sensitivity functions (CSF). The model can be applied during the watermark embed process, using a pyramid based method, to obtain equal visibility. Better robustness and visibility can be obtained with equal visibility embed than uniform strength embed. Of course, other features, combinations and claims are disclosed as well.
Abstract translation: 本公开一般涉及彩色科学和数字水印。 已经开发了全色可见性模型，其与用水印降级的色斑的主观可见性测试具有良好的相关性。 使用向对比度敏感度函数（CSF）施加亮度校正的模型可以实现相对更好的相关性。 该模型可以在水印嵌入过程中应用，使用基于金字塔的方法，以获得相等的可见性。 可以通过均匀的强度嵌入具有相同的可见性嵌入来获得更好的鲁棒性和可见性。 当然，也公开了其它特征，组合和权利要求。
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公开(公告)号：US09805435B2
公开(公告)日：2017-10-31
申请号：US15426630
申请日：2017-02-07
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202 , H04N1/32309 , H04N1/6005 , H04N2201/3233
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. Digital watermarking can be applied to color image data through use of a luminance contrast sensitivity function and a chrominance contrast sensitive function. Of course, other features, combinations and claims are disclosed as well.
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3.发明申请FULL COLOR VISIBILITY MODEL USING CSF WHICH VARIES SPATIALLY WITH LOCAL LUMINANCE 审中-公开全彩色可见性模型，使用各种空间与本地照明公开(公告)号：US20160316098A1
公开(公告)日：2016-10-27
申请号：US15137401
申请日：2016-04-25
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202 , H04N1/32309 , H04N1/6005 , H04N2201/3233
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. One claim recites an apparatus including: an input for obtaining color image data; memory for storing a luminance contrast sensitivity function (CSF1) and a chrominance contrast sensitivity function (CSF2); means for degrading data representing color image data with the CSF1 and the CSF2 to predict visibility changes attributable to encoding plural-bit information in the obtained color image data, in which the CSF1 varies depending on luminance values associated with local regions of the color image data, in which said means for degrading data representing color image data yields results for different image areas within the color image data, and in which the CSF1 is used for degrading luminance data and the CSF2 is used for degrading chrominance data; and means for altering the color image data by encoding plural-bit information therein, in which signal embedding strength of the encoding within the different image areas varies based on the results. Of course, other features, combinations and claims are disclosed as well.
Abstract translation: 本公开一般涉及图像信号处理，色彩科学和信号编码。 一个权利要求记载一种装置，包括：用于获得彩色图像数据的输入; 用于存储亮度对比度敏感度函数（CSF1）和色度对比度敏感度函数（CSF2）的存储器; 用于使用CSF1和CSF2降级表示彩色图像数据的数据的装置，用于预测可归因于所获得的彩色图像数据中的多位信息的识别变化，其中CSF1根据与彩色图像数据的局部区域相关联的亮度值而变化 其中所述用于降低表示彩色图像数据的数据的装置产生彩色图像数据内的不同图像区域的结果，并且其中使用CSF1降解亮度数据，并且使用CSF2降低色度数据; 以及用于通过对其中的多位信息进行编码来改变彩色图像数据的装置，其中不同图像区域内的编码的信号嵌入强度基于结果而变化。 当然，也公开了其它特征，组合和权利要求。
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Patent Agency Ranking
公开(公告)号：US20180122035A1
公开(公告)日：2018-05-03
申请号：US15798046
申请日：2017-10-30
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
IPC: G06T1/00
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202 , H04N1/32309 , H04N1/6005 , H04N2201/3233
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. Signal encoding can be applied to color image data through use of a luminance contrast sensitivity function and a chrominance contrast sensitive function. Of course, other features, combinations and claims are disclosed as well.
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5.发明授权Full color visibility model using CSF which varies spatially with local luminance 有权使用CSF在空间上与局部亮度变化的全色可见性模型公开(公告)号：US09565335B2
公开(公告)日：2017-02-07
申请号：US15137401
申请日：2016-04-25
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202 , H04N1/32309 , H04N1/6005 , H04N2201/3233
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. One claim recites an apparatus including: an input for obtaining color image data; memory for storing a luminance contrast sensitivity function (CSF1) and a chrominance contrast sensitivity function (CSF2); means for degrading data representing color image data with the CSF1 and the CSF2 to predict visibility changes attributable to encoding plural-bit information in the obtained color image data, in which the CSF1 varies depending on luminance values associated with local regions of the color image data, in which said means for degrading data representing color image data yields results for different image areas within the color image data, and in which the CSF1 is used for degrading luminance data and the CSF2 is used for degrading chrominance data; and means for altering the color image data by encoding plural-bit information therein, in which signal embedding strength of the encoding within the different image areas varies based on the results. Of course, other features, combinations and claims are disclosed as well.
Abstract translation: 本公开一般涉及图像信号处理，色彩科学和信号编码。 一个权利要求记载一种装置，包括：用于获得彩色图像数据的输入; 用于存储亮度对比度敏感度函数（CSF1）和色度对比度敏感度函数（CSF2）的存储器; 用于使用CSF1和CSF2降级表示彩色图像数据的数据的装置，用于预测可归因于所获得的彩色图像数据中的多位信息的识别变化，其中CSF1根据与彩色图像数据的局部区域相关联的亮度值而变化 其中所述用于降级表示彩色图像数据的数据的装置产生彩色图像数据内的不同图像区域的结果，并且其中使用CSF1降解亮度数据，并且使用CSF2降解色度数据; 以及用于通过对其中的多位信息进行编码来改变彩色图像数据的装置，其中不同图像区域内的编码的信号嵌入强度基于结果而变化。 当然，也公开了其它特征，组合和权利要求。
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6.发明申请FULL-COLOR VISIBILITY MODEL USING CSF WHICH VARIES SPATIALLY WITH LOCAL LUMINANCE 有权全彩色可见性模型，使用各种空间与本地照明的CSF公开(公告)号：US20150187039A1
公开(公告)日：2015-07-02
申请号：US14588636
申请日：2015-01-02
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Yang Bai , Kristyn R. Falkenstern , David Berfanger
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202
Abstract: The present disclosure relate generally to color science and digital watermarking. A full color visibility model has been developed which has good correlation to subjective visibility tests for color patches degraded with a watermark. A relatively better correlation can be achieved with a model that applies a luminance correction to the contrast sensitivity functions (CSF). The model can be applied during the watermark embed process, using a pyramid based method, to obtain equal visibility. Better robustness and visibility can be obtained with equal visibility embed than uniform strength embed. Of course, other features, combinations and claims are disclosed as well.
Abstract translation: 本公开一般涉及彩色科学和数字水印。 已经开发了全色可见性模型，其与用水印降级的色斑的主观可见性测试具有良好的相关性。 使用向对比度敏感度函数（CSF）施加亮度校正的模型可以实现相对更好的相关性。 该模型可以在水印嵌入过程中应用，使用基于金字塔的方法，以获得相等的可见性。 可以通过均匀的强度嵌入具有相同的可见性嵌入来获得更好的鲁棒性和可见性。 当然，也公开了其它特征，组合和权利要求。
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公开(公告)号：US10282801B2
公开(公告)日：2019-05-07
申请号：US15798046
申请日：2017-10-30
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. Signal encoding can be applied to color image data through use of a luminance contrast sensitivity function and a chrominance contrast sensitive function. Of course, other features, combinations and claims are disclosed as well.
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公开(公告)号：US20170236239A1
公开(公告)日：2017-08-17
申请号：US15426630
申请日：2017-02-07
Applicant: Digimarc Corporation
Inventor： Alastair M. Reed , Kristyn R. Falkenstern , David Berfanger , Yang Bai
IPC: G06T1/00
CPC classification number: G06T1/0028 , G06T2201/0051 , G06T2201/0083 , G06T2201/0202 , H04N1/32309 , H04N1/6005 , H04N2201/3233
Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. Digital watermarking can be applied to color image data through use of a luminance contrast sensitivity function and a chrominance contrast sensitive function. Of course, other features, combinations and claims are disclosed as well.
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