公开(公告)号：US20170099411A1

公开(公告)日：2017-04-06

申请号：US15278741

申请日：2016-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Wei Song ,  Nobutaka Miyake ,  Yuki Ishida

IPC: H04N1/409 ,  G06T1/00 ,  H04N1/00

CPC classification number: H04N1/409 ,  G06T1/005 ,  G06T5/002 ,  G06T5/50 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0601 ,  G06T2207/20092 ,  H04N1/00251 ,  H04N1/00408 ,  H04N1/32

Abstract: An image in which additional information is embedded is shot by an imaging unit. The additional information embedded in the image is acquired from the shot image. When the additional information cannot be acquired, a display unit is caused to display information that prompts a user to move the information processing apparatus. The additional information embedded in the image is acquired from an image shot after the information that prompts the user to move the information processing apparatus is displayed.

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。

公开(公告)号：US20150154725A1

公开(公告)日：2015-06-04

申请号：US14508351

申请日：2014-10-07

Applicant: FUJITSU LIMITED

Inventor： Kensuke KURAKI ,  RYUTA TANAKA

IPC: G06T1/00

CPC classification number: G06T1/005 ,  G06T1/0021 ,  G06T1/0064 ,  G06T1/0085 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0601

Abstract: A memory stores first video information displayed on a display screen. A processor generates embedded information varying temporally and superimposes the embedded information on an image part at least corresponding to an edge of the display screen in the first video information so as to generate second video information on which the embedded information is superimposed. An output interface outputs the second video information.

Abstract translation: 存储器存储显示在显示屏幕上的第一视频信息。 处理器产生在时间上变化的嵌入信息，并且将嵌入信息叠加在至少对应于第一视频信息中的显示屏边缘的图像部分上，以便产生叠加嵌入信息的第二视频信息。 输出接口输出第二视频信息。

公开(公告)号：US20150125026A1

公开(公告)日：2015-05-07

申请号：US14378502

申请日：2013-02-12

Applicant: Centre National De La Recherche Scientifique-CNRS ,  Universite De Nantes

Inventor： Florent Autrusseau

IPC: G06T1/00 ,  H04N1/32

CPC classification number: G06T1/0064 ,  G06T2201/0052 ,  G06T2201/0064 ,  G06T2201/0601 ,  H04N1/3216 ,  H04N1/32197 ,  H04N1/3232 ,  H04N1/32352

Abstract: A method is provided for inserting a digital watermark in an image by an insertion device. Inserting includes: applying a Fourier transform to the image, delivering a 2D Fourier spectrum; inserting the watermark in the Fourier spectrum delivering a modified Fourier spectrum; and applying an inverse Fourier transform to the modified Fourier spectrum delivering a watermarked image. The watermark includes a set of watermarking coefficients each associated with a distinct determined position of a given quadrant among the quadrants of the Fourier domain, the spectral coordinates u and v of which, measured along the two axes of coordinates of the given quadrant and starting from the continuous component and expressed in percentage of the dimensions U and V of the given quadrant, are such that: u>66%×U and v>66%×V. The set of positions associated with the watermarking coefficients defines a convex pattern in the given quadrant.

Abstract translation: 提供了一种通过插入装置将数字水印插入到图像中的方法。 插入包括：对图像应用傅里叶变换，传送2D傅里叶谱; 在提供修改的傅立叶频谱的傅立叶频谱中插入水印; 以及将逆傅立叶变换应用于递送水印图像的经修改的傅立叶频谱。 水印包括一组水印系数，每个水印系数与傅立叶域的象限中的给定象限的不同确定位置相关联，其分布坐标u和v沿着给定象限的两个坐标轴测量，并从 连续分量并以给定象限的尺寸U和V的百分比表示，使得：u> 66％×U且v> 66％×V。 与水印系数相关联的位置集合定义给定象限中的凸形图案。

公开(公告)号：US08913780B2

公开(公告)日：2014-12-16

申请号：US13963627

申请日：2013-08-09

Applicant: Digimarc Corporation

Inventor： Alastair M. Reed ,  Ravi K. Sharma

IPC: G06K9/00 ,  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。

公开(公告)号：US20140241568A1

公开(公告)日：2014-08-28

申请号：US14160995

申请日：2014-01-22

Applicant: HITACHI SOLUTIONS, LTD.

Inventor： Takaaki YAMADA ,  Motoki KAMITANI ,  Masahiko MANO

IPC: G06T1/00

CPC classification number: G06T1/0021 ,  G06T1/0028 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  G06T2201/0601

Abstract: A digital watermark embedding system generates a watermarked image by providing one or more specific regions in an image, each specific region including two or more base regions symmetric with respect to the centroid, and by embedding a watermark in the image while avoiding the specific region. Further, a digital watermark detecting system detects a watermark in a region other than the specific region, by detecting the shape of the specific region in which no watermark is embedded, calculating the centroid position of the specific region as a centroid, and correcting geometric transformation of the image based on the location in the image that corresponds to one or more calculated centroids.

Abstract translation: 数字水印嵌入系统通过在图像中提供一个或多个特定区域来生成水印图像，每个特定区域包括相对于质心对称的两个或多个基本区域，以及通过在图像中嵌入水印同时避免特定区域。 此外，电子水印检测系统通过检测没有嵌入水印的特定区域的形状来检测特定区域以外的区域中的水印，计算特定区域的质心位置作为质心，并且校正几何变换 基于图像中对应于一个或多个计算的质心的位置的图像。

公开(公告)号：US08638978B2

公开(公告)日：2014-01-28

申请号：US12510983

申请日：2009-07-28

Applicant: Adnan M. Alattar ,  Eugene T. Lin ,  Mehmet U. Celik

Inventor： Adnan M. Alattar ,  Eugene T. Lin ,  Mehmet U. Celik

IPC: G06K9/00

CPC classification number: G06T1/0064 ,  G06T1/0071 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0601

Abstract: Methods for embedding digital watermarks in compressed video include perceptual adapting a digital watermark in predicted and non-predicted data based on block activity derived from the compressed video stream, embedding in predicted objects in a video stream having separately compressed video objects, and bit rate control of watermarked video.

Abstract translation: 在压缩视频中嵌入数字水印的方法包括基于从压缩视频流导出的块活动的预测和非预测数据中感知适应数字水印，嵌入具有单独压缩视频对象的视频流中的预测对象中，以及比特率控制 的水印视频。

公开(公告)号：US08615104B2

公开(公告)日：2013-12-24

申请号：US13288937

申请日：2011-11-03

Applicant: Rade Petrovic ,  Venkatraman Atti

Inventor： Rade Petrovic ,  Venkatraman Atti

IPC: G06K9/00

CPC classification number: G06T1/0085 ,  G06T2201/0601 ,  H04L2209/608

Abstract: Methods, devices and computer program products facilitate the extraction of embedded watermarks in the presence of content distortions. Pre-distorted synchronization templates are used to detect synchronization portions of embedded watermark frames. A pre-distorted synchronization template that best matches the synchronization portion of the embedded watermark frame produces an estimation of one or more distortions that are present in the content. The remainder of watermark frame can be evaluated based on the outcome of the comparison.

Abstract translation: 方法，设备和计算机程序产品有助于在存在内容失真的情况下提取嵌入的水印。 预失真同步模板用于检测嵌入水印帧的同步部分。 与嵌入的水印帧的同步部分最佳匹配的预失真同步模板产生对内容中存在的一个或多个失真的估计。 可以基于比较的结果来评估其余的水印帧。

公开(公告)号：US08509474B1

公开(公告)日：2013-08-13

申请号：US12636561

申请日：2009-12-11

Applicant: Alastair M. Reed ,  Ravi K. Sharma

Inventor： Alastair M. Reed ,  Ravi K. Sharma

IPC: G06K9/00

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 a first color channel and a second color channel, the first color channel and the second color channel are components of a color image signal or color video signal; obtaining a digital watermark orientation pattern, the orientation pattern serving to facilitate detection of a watermark message; separating the digital watermark orientation pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, transforming the first color channel by steganographically embedding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, transforming the second color channel by steganographically embedding 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。 一个方案涉及一种方法，包括：获得第一颜色通道和第二颜色通道，第一颜色通道和第二颜色通道是彩色图像信号或彩色视频信号的分量; 获取数字水印定向图案，所述取向图案有助于检测水印消息; 将数字水印定位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，通过在其中隐藏地嵌入第一频率分量来变换第一颜色通道; 以及利用编程的电子处理器或电子处理电路，通过在其中隐藏地嵌入第二频率分量来转换第二颜色通道。 当然，也提供其他组合和权利要求。

公开(公告)号：US08331724B2

公开(公告)日：2012-12-11

申请号：US13208180

申请日：2011-08-11

Applicant: Geoffrey B. Rhoads

Inventor： Geoffrey B. Rhoads

IPC: G06K9/32

CPC classification number: H04N5/232 ,  G06K9/2063 ,  G06T1/0064 ,  G06T2201/0052 ,  G06T2201/0601 ,  H04N1/32 ,  H04N1/32133 ,  H04N1/32187 ,  H04N1/32309 ,  H04N2201/3269 ,  H04N2201/327 ,  H04N2201/3273

Abstract: An image is encoded to define one or more spatial regions that can be sensed by a suitably-equipped mobile device (e.g., a smartphone), but are imperceptible to humans. When such a mobile device senses one of these regions, it takes an action in response (e.g., rendering an associated tone, playing linked video, etc.). The regions may overlap in layered fashion. One form of encoding employs modification of the color content of the image at higher spatial frequencies, where human vision is not acute. In a particular embodiment, the encoding comprises altering a transform domain representation of the image by adding signal energy in a first chrominance channel, where the added signal energy falls primarily within a segmented arc region in a transform domain space. In another arrangement, a smartphone display presents both image data captured from a scene, and a transform representation of the image data (e.g., in the Fourier domain). This latter information can aid a user in positioning the phone, e.g., to enhance decoding of a steganographic digital watermark. In still another arrangement, foveal filtering is applied to of smartphone-captured image data in connection with other image processing.

Abstract translation: 编码图像以定义可由适当装备的移动设备（例如，智能电话）感测到的一个或多个空间区域，但是对于人是不可察觉的。 当这种移动设备感测到这些区域中的一个时，它采取响应的动作（例如，呈现相关联的音调，播放链接的视频等）。 这些区域可以以分层方式重叠。 一种形式的编码采用在较高空间频率下修改图像的颜色内容，其中人类视觉不是尖锐的。 在特定实施例中，编码包括通过在第一色度信道中添加信号能量来改变图像的变换域表示，其中相加的信号能量主要落在变换域空间中的分段弧区域内。 在另一种布置中，智能手机显示器呈现从场景捕获的图像数据和图像数据的变换表示（例如，在傅立叶域中）。 后一种信息可以帮助用户定位电话，例如，以增强隐写数字水印的解码。 在另一种安排中，中心凹滤波被应用于与其他图像处理有关的智能手机捕获的图像数据。