SPECTRAL EDGE MARKING FOR STEGANOGRAPHY OR WATERMARKING
    1.
    发明申请
    SPECTRAL EDGE MARKING FOR STEGANOGRAPHY OR WATERMARKING 有权
    频谱边缘标记用于STEGANOGRAPHY或WATERMARKING

    公开(公告)号:US20130335784A1

    公开(公告)日:2013-12-19

    申请号:US13526837

    申请日:2012-06-19

    Abstract: A method for providing digital watermarking for text or images that uses spectral edge marking materials (320) printed on a print media (200) to embed hidden data (220). The spectral edge markers (320) have an absorption spectrum at the edge of the human visible spectrum, either at the UV edge or IR edge, which provides an optical density that is generally imperceptible to humans, but which can be detected by an image capture device (250). The crosstalk of visible optical absorption provided by these materials is largely masked by the presence of visible colorant(s) (340), with only small color differences between areas with and without the spectral edge markers (320). The image capture device (250) has a visible spectral response that extends into a spectral region just outside the visible spectrum where the spectral edge marker absorption occurs, and can be operated to detect the hidden data.

    Abstract translation: 一种用于为文本或图像提供数字水印的方法,该方法使用打印在打印介质(200)上的光谱边缘标记材料(320)来嵌入隐藏数据(220)。 光谱边缘标记(320)在人类可见光谱的边缘处具有在UV边缘或IR边缘处的吸收光谱,其提供通常对人类不可察觉的光密度,但是可以通过图像捕获来检测 设备(250)。 由这些材料提供的可见光吸收的串扰在很大程度上被可见色素(340)的存在所遮蔽,在具有和不具有光谱边缘标记(320)的区域之间仅具有小的色差。 图像捕获装置(250)具有可见的光谱响应,其延伸到刚好在发生光谱边缘标记吸收的可见光谱外部的光谱区域中,并且可以操作以检测隐藏的数据。

    SPECTRAL EDGE MARKING FOR STEGANOGRAPHY OR WATERMARKING
    2.
    发明申请
    SPECTRAL EDGE MARKING FOR STEGANOGRAPHY OR WATERMARKING 有权
    频谱边缘标记用于STEGANOGRAPHY或WATERMARKING

    公开(公告)号:US20130335783A1

    公开(公告)日:2013-12-19

    申请号:US13526820

    申请日:2012-06-19

    Abstract: A print media (200) comprises paper or other substrate, on which image content, whether text or images are printed with accompanying hidden data (220). The image content is printed with one or more normal printing process visible colorants (340), while the hidden data (220) is printed with spectral edge markers (320). The spectral edge marker materials (320) have a substantial spectral absorption just outside the human visible spectrum, and only slight visible absorption, which is masked by the visible colorants (340). Although the hidden data is nominally visually imperceptible, an image capture device (250) having a visible spectral response that extends into a spectral region just outside the visible spectrum where the spectral edge marker absorption occurs, can then detect the hidden data.

    Abstract translation: 打印介质(200)包括纸或其他基板,图像内容,文本或图像是否随着隐藏数据被打印(220)。 图像内容用一个或多个正常打印过程可见的着色剂(340)打印,而隐藏数据(220)用光谱边缘标记(320)打印。 光谱边缘标记材料(320)在人类可见光谱外部具有实质的光谱吸收,并且只有轻微的可见光吸收,其被可见的着色剂(340)掩蔽。 虽然隐藏的数据在名义上视觉上是不可察觉的,但是具有可见光谱响应的图像捕获装置(250)可以检测隐藏的数据,该可见光谱响应延伸到光谱边缘标记物吸收发生的可见光谱之外的光谱区域。

    Enhancing image resolution by rotation of image plane
    3.
    发明授权
    Enhancing image resolution by rotation of image plane 有权
    通过图像平面的旋转增强图像分辨率

    公开(公告)号:US08289395B2

    公开(公告)日:2012-10-16

    申请号:US11960890

    申请日:2007-12-20

    CPC classification number: H04N5/349 G06T3/4069

    Abstract: An imaging apparatus with adjustable imaging plane, the apparatus having mechanical, electronic or optical devices to adjust the position and the orientation of the imaging plane, which successively captures a plurality of images while adjusting the imaging plane, and a method to integrate the captured images to a single high-resolution image by exploration of the mutual information not available in a single image, such as the sub-pixel observations due to the spatial misalignment, thus achieving an image resolution higher than the sensor resolution.

    Abstract translation: 一种具有可调成像平面的成像装置,该装置具有用于调节成像平面的位置和取向的机械,电子或光学装置,其在调整成像平面的同时连续地捕获多个图像,以及一种将捕获图像 通过探索单个图像中不可用的相互信息(例如由于空间未对准而产生的子像素观察),从而获得高于传感器分辨率的图像分辨率,从而获得单个高分辨率图像。

    Method and system for video filtering with joint motion and noise estimation
    5.
    发明授权
    Method and system for video filtering with joint motion and noise estimation 有权
    具有联合运动和噪声估计的视频滤波方法和系统

    公开(公告)号:US07295616B2

    公开(公告)日:2007-11-13

    申请号:US10715039

    申请日:2003-11-17

    Abstract: A method for video filtering of an input video sequence by utilizing joint motion and noise estimation includes the steps of: (a) generating a motion-compensated video sequence from the input video sequence and a plurality of estimated motion fields; (b) spatiotemporally filtering the motion compensated video sequence, thereby producing a filtered, motion-compensated video sequence; (c) estimating a standard deviation from the difference between the input video sequence and the filtered, motion-compensated video sequence, thereby producing an estimated standard deviation; (d) estimating a scale factor from the difference between the input video sequence and the motion compensated video sequence; and (e) iterating through steps (a) to (d) using the scale factor previously obtained from step (d) to generate the motion-compensated video sequence in step (a) and using the estimated standard deviation previously obtained from step (c) to perform the filtering in step (b) until the value of the noise level approaches the unknown noise of the input video sequence, whereby the noise level is then characterized by a finally determined scale factor and standard deviation.

    Abstract translation: 一种通过利用联合运动和噪声估计对输入视频序列进行视频滤波的方法包括以下步骤:(a)从输入视频序列和多个估计运动场产生运动补偿视频序列; (b)对所述运动补偿视频序列进行时空滤波,从而产生经滤波的运动补偿视频序列; (c)从输入视频序列和滤波的运动补偿视频序列之间的差估计标准偏差,从而产生估计的标准偏差; (d)从输入视频序列和运动补偿视频序列之间的差估计比例因子; 和(e)使用先前从步骤(d)获得的比例因子重复步骤(a)至(d),以在步骤(a)中生成运动补偿视频序列,并使用先前从步骤(c)获得的估计标准偏差 )以执行步骤(b)中的滤波,直到噪声电平的值接近输入视频序列的未知噪声,由此噪声电平然后由最终确定的比例因子和标准偏差来表征。

    Digital camera with image authentication
    6.
    发明申请
    Digital camera with image authentication 审中-公开
    具有图像认证的数码相机

    公开(公告)号:US20060036864A1

    公开(公告)日:2006-02-16

    申请号:US11253854

    申请日:2005-10-18

    CPC classification number: H04L9/3247 H04L2209/30 H04N1/4486 H04N2101/00

    Abstract: A digital camera having a public key encryption system to establish the authenticity of digital images created by the camera, wherein the private key/public key pair is produced within the digital camera using an algorithm which ensures that it is unique, rather than being produced on a separate computer and uploaded to the camera. The private key is stored in a memory within the digital camera, so that it cannot be discovered.

    Abstract translation: 一种具有公共密钥加密系统的数字照相机,用于建立由照相机创建的数字图像的真实性,其中在数字照相机内使用确保其独特的算法产生私钥/公开密钥对,而不是在 一台单独的电脑并上传到相机。 私钥存储在数码相机内的存储器中,使其不能被发现。

    Encoding color image data for multipass color printers
    8.
    发明授权
    Encoding color image data for multipass color printers 失效
    编码多色彩色打印机的彩色图像数据

    公开(公告)号:US5956467A

    公开(公告)日:1999-09-21

    申请号:US767613

    申请日:1996-12-17

    CPC classification number: G06T9/004 H04N1/648

    Abstract: A method for encoding color image data of the type having multiple color planes for a printer that prints the color planes in a given sequence includes the steps of: compressing the image data in the last color plane in the printing sequence and storing the resulting compressed data; using information relating to the image data in the previous color plane(s) to predict the image data in the next color plane to be printed; forming difference image data between the image data in the next color plane to be printed and the predicted image data for that color plane; and compressing the difference image data and storing the resulting compressed data. These steps are repeated until the image data for all of the color planes have been compressed and stored.

    Abstract translation: 一种用于编码具有用于以给定顺序打印彩色平面的打印机的具有多个颜色平面的类型的彩色图像数据的方法包括以下步骤:压缩打印序列中最后一个色彩平面中的图像数据并存储所得到的压缩数据 ; 使用与先前的颜色平面中的图像数据有关的信息来预测要打印的下一个彩色平面中的图像数据; 在要打印的下一个彩色平面中的图像数据与该彩色平面的预测图像数据之间形成差分图像数据; 并压缩差分图像数据并存储所得到的压缩数据。 重复这些步骤,直到所有色平面的图像数据被压缩和存储。

    Secure photographic systems
    9.
    发明授权
    Secure photographic systems 失效
    安全摄影系统

    公开(公告)号:US5801856A

    公开(公告)日:1998-09-01

    申请号:US687127

    申请日:1996-07-24

    Abstract: A secure photographic system includes: a photographic film bearing an image and indicia representing a desired digital image security feature relating to the image; a scanner for scanning the image on the film to generate a digital image; means for detecting the indicia on the film to generate a security feature control signal; and digital image processing means responsive to the security feature control signal and the digital image for applying the desired digital image security feature to the digital image.

    Abstract translation: 安全摄影系统包括:摄影胶片,其承载有与图像有关的所需数字图像安全特征的图像和标记; 用于扫描胶片上的图像以产生数字图像的扫描仪; 用于检测胶片上的标记以产生安全特征控制信号的装置; 以及响应于安全特征控制信号和数字图像的数字图像处理装置,用于将所需的数字图像安全特征应用于数字图像。

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