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81. 发明申请

US20080103717A1 PROCESSING AN INPUT SIGNAL USING A CORRECTION FUNCTION BASED ON TRAINING PAIRS 有权
标题翻译：使用基于训练对的校正功能处理输入信号
公开(公告)号：US20080103717A1
公开(公告)日：2008-05-01
申请号：US11554183
申请日：2006-10-30
申请人： Yacov Hel-Or , Doron Shaked
发明人： Yacov Hel-Or , Doron Shaked
IPC分类号： G06F19/00 , G06F17/40
CPC分类号： G06T5/10 , G06T5/002 , G06T2207/20008 , G06T2207/20012 , G06T2207/20064
摘要： Provided are systems, methods and techniques for, inter alia, processing an input signal. In one representative embodiment, samples of an input signal that represents a physical quantity are obtained and then transformed from an original domain into a plurality of coefficients in a transform domain, using an over-complete transform, such that the plurality of coefficients is sufficient to redundantly reconstruct the input signal samples. The coefficients are then modified independently of each other by applying a correction function, thereby obtaining a set of corrected coefficients, and the set of corrected coefficients is transformed back to the original domain. According to this embodiment, the correction function was determined by using a set of training pairs, each training pair including an uncorrected signal and a corrected signal, and by reducing a specified aggregate measure of error between the uncorrected signal and the corrected signal in the original domain across the training pairs.
摘要翻译：提供了用于处理输入信号的系统，方法和技术。在一个代表性实施例中，使用表示物理量的输入信号的采样，并使用过完整变换从原始域变换为变换域中的多个系数，使得多个系数足以冗余重建输入信号样本。然后通过应用校正函数来独立地修改系数，从而获得一组校正后的系数，并将该组校正系数转换回原始域。根据本实施例，通过使用一组训练对，每个训练对包括未校正的信号和校正的信号，并且通过减少未校正的信号与原始信号中的校正信号之间的误差的规定的总体测量来确定校正功能域间训练对。

82. 发明申请

US20070290041A1 Position location using error correction 有权
标题翻译：使用错误校正的位置位置
公开(公告)号：US20070290041A1
公开(公告)日：2007-12-20
申请号：US11453368
申请日：2006-06-14
申请人： Gitit Ruckenstein , Doron Shaked
发明人： Gitit Ruckenstein , Doron Shaked
IPC分类号： G06K7/10 , G06K19/06
CPC分类号： G06F3/03545 , G06F3/0321
摘要： Provided are codes that may be applied to a sheet of paper or other surface, as well as techniques for decoding such codes. Using such codes and decoding techniques permits identification of the position of a pen (e.g., a digital pen) on the paper or other surface, by observing only a small field of the surface. Moreover, the position often can be identified even in the presence of arbitrary rotation and certain errors (e.g., due to dust or stray markings on the paper).
摘要翻译：提供可以应用于一张纸或其他表面的代码以及用于对这些代码进行解码的技术。使用这样的代码和解码技术允许通过仅观察表面的小场来识别笔（例如，数字笔）在纸张或其他表面上的位置。此外，即使在任意旋转和某些错误（例如由于纸上的灰尘或杂散痕迹）的存在的情况下，也可以识别位置。

83. 发明授权

US07266246B2 System and method for estimating compression noise in images 有权
标题翻译：用于估计图像压缩噪声的系统和方法
公开(公告)号：US07266246B2
公开(公告)日：2007-09-04
申请号：US10835888
申请日：2004-04-29
申请人： Doron Shaked , Hila Nachlieli
发明人： Doron Shaked , Hila Nachlieli
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/154 , H04N19/115 , H04N19/136 , H04N19/14 , H04N19/172
摘要： A system and method for estimating compression image noise. Image data for an image is received. A compression ratio, an image size ratio, and an activity for the image are determined. Compression artifact estimation is determined based on the compression ratio, the image size ratio, and the activity.
摘要翻译：一种用于估计压缩图像噪声的系统和方法。接收图像的图像数据。确定图像的压缩比，图像尺寸比和活动度。基于压缩率，图像大小比和活动度来确定压缩伪像估计。

84. 发明申请

US20060028686A1 Encoding image data using mask lookup table and decoding such encoded image data 有权
公开(公告)号：US20060028686A1
公开(公告)日：2006-02-09
申请号：US10912034
申请日：2004-08-05
申请人： Ruth Bergman , Gitit Ruckenstein , Doron Shaked , Renato Keshet
发明人： Ruth Bergman , Gitit Ruckenstein , Doron Shaked , Renato Keshet
IPC分类号： G06K9/00
CPC分类号： H04N19/90 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/593
摘要： In one aspect, an image is quantized by assigning sub-ranges of pixel values in the image to respective quantization levels. The quantized image is encoded based at least in part on a mask lookup table assigning index values to respective masks, wherein each mask corresponds to a respective spatial distribution of the quantization levels. In another aspect, a code corresponding to an encoded image with pixel values quantized to respective quantization levels is received. The code is decoded based at least in part on a mask lookup table assigning index values to respective masks, wherein each mask corresponds to a respective spatial distribution of the quantization levels.

85. 发明申请

US20050244061A1 System and method for estimating compression noise in images 有权
标题翻译：用于估计图像压缩噪声的系统和方法
公开(公告)号：US20050244061A1
公开(公告)日：2005-11-03
申请号：US10835888
申请日：2004-04-29
申请人： Doron Shaked , Hila Nachlieli
发明人： Doron Shaked , Hila Nachlieli
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , G06K9/36
CPC分类号： H04N19/154 , H04N19/115 , H04N19/136 , H04N19/14 , H04N19/172
摘要： A system and method for estimating compression image noise. Image data for an image is received. A compression ratio, an image size ratio, and an activity for the image are determined. Compression artifact estimation is determined based on the compression ratio, the image size ratio, and the activity.
摘要翻译：一种用于估计压缩图像噪声的系统和方法。接收图像的图像数据。确定压缩比，图像尺寸比和图像的活动性。基于压缩率，图像大小比和活动度来确定压缩伪像估计。

86. 发明授权

US06941028B2 System and method for image enhancement, dynamic range compensation and illumination correction 失效
标题翻译：用于图像增强，动态范围补偿和照明校正的系统和方法
公开(公告)号：US06941028B2
公开(公告)日：2005-09-06
申请号：US09843834
申请日：2001-04-30
申请人： Ronny Kimmel , Michael Elad , Doron Shaked , Renato Keshet , Irwin Sobel
发明人： Ronny Kimmel , Michael Elad , Doron Shaked , Renato Keshet , Irwin Sobel
IPC分类号： G06K9/46 , G06T3/40 , G06T5/00 , G06T7/00 , H04N1/407 , G06K9/40
CPC分类号： G06K9/4661 , G06T5/007 , G06T2207/10024 , G06T2207/20016
摘要： A system and a method solve the estimation problem of finding reflectance R and illumination L. The system and method to solve a functional of the unknown illumination L such that a minimum of the functional is assumed to yield a good estimate of the illumination L. Having a good estimate of the illumination L implies a good estimate of the reflectance R. The functional uses a variational framework to express requirements for the optimal solution. The requirements include: 1) that the illumination L is spatially smooth; 2) that the reflectance values are in the interval [0,1] —thus, when decomposing the image S, the solution should satisfy the constraint L>S; 3) that among all possible solutions, the estimate of the illumination L should be as close as possible to the image S, so that the contrast of the obtained R is maximal; and 4) that the reflectance R complies with typical natural image behavior (e.g., the reflectance is piece-wise smooth).
摘要翻译：一种系统和方法解决了找到反射率R和照明L的估计问题。解决未知照明L的功能的系统和方法，使得假定功能的最小值产生对照明L的良好估计。具有对照明L的良好估计意味着对反射率R的良好估计。功能使用变分框架来表达对最优解的要求。要求包括：1）照明L在空间上平滑; 2）反射率值在[0,1]之间，当分解图像S时，溶液应满足约束L> S; 3）在所有可能的解决方案中，照明L的估计应尽可能接近图像S，使得所获得的R的对比度最大; 和4）反射率R符合典型的自然图像行为（例如，反射率是分段平滑的）。

87. 发明授权

US06938017B2 Scalable, fraud resistant graphical payment indicia 有权
标题翻译：可扩展，防欺诈的图形支付标记
公开(公告)号：US06938017B2
公开(公告)日：2005-08-30
申请号：US09728297
申请日：2000-12-01
申请人： Jonathan Yen , Chit Wei Saw , Doron Shaked , Avraham Levy
发明人： Jonathan Yen , Chit Wei Saw , Doron Shaked , Avraham Levy
IPC分类号： B41J5/30 , G06T1/00 , G07B17/00 , H04N1/387 , G06F17/60 , H04K1/00
CPC分类号： G07B17/00508 , G06Q20/3672 , G07B2017/00443 , G07B2017/0058 , G07B2017/00588 , G07B2017/00637 , G07B2017/00709
摘要： Payment indicia generating schemes are described that enable users to customize the appearance of the payment indicium and to accommodate a wide variety of validation processing environments, while providing a substantial defense against fraudulent photocopy attack. In some embodiments, a corroborative digital token is generated from payment information, and a base image is modulated with a graphical encoding of the corroborative digital token to produce a payment indicium. In some embodiments, a payment indicium containing embedded payment information is rendered on a printing surface with a printing characteristic that degrades with photographic reproductions such that the embedded payment information is extractable from an original rendering of the payment indicium but is un-extractable from a photographic reproduction of an original rendering of the payment indicium. In some embodiments, payment information is encoded into a corroborative digital token based at least in part upon one or more variable encoding parameters, and a payment indicium containing the encoded payment information is rendered.
摘要翻译：描述支付标记生成方案，使得用户能够定制支付标记的外观并且适应各种各样的验证处理环境，同时提供对欺诈性复印攻击的实质防御。在一些实施例中，从付款信息生成确认数字令牌，并且使用确认数字令牌的图形编码来调制基本图像以产生支付标记。在一些实施例中，包含嵌入式支付信息的支付标记在打印表面上呈现，其印刷特性与照相复制品降级，使得嵌入的支付信息可从支付标记的原始呈现中提取，但不能从照相中提取复制支付标记的原始呈现。在一些实施例中，支付信息至少部分地基于一个或多个可变编码参数被编码为确认数字令牌，并且呈现包含编码支付信息的支付标记。

88. 发明申请

US20050031160A1 Error diffusion halftone watermarking 有权
标题翻译：错误扩散半色调水印
公开(公告)号：US20050031160A1
公开(公告)日：2005-02-10
申请号：US10889327
申请日：2004-07-11
申请人： Doron Shaked , Izhak Baharav
发明人： Doron Shaked , Izhak Baharav
IPC分类号： G06K9/00 , G06T1/00
CPC分类号： G06T1/005 , G06T2201/0051
摘要： A watermarked halftone image is generated from a continuous tone image by performing error diffusion halftoning on the continuous tone image while adding a watermark to the halftone image during the halftoning. A location of the watermark in the halftone image may be based on prediction criteria. Error caused by adding the watermark may be diffused into the halftone image.
摘要翻译：通过在连续色调图像处执行误差扩散半色调，同时在半色调期间向半色调图像添加水印，从连续色调图像生成水印的半色调图像。半色调图像中的水印的位置可以基于预测标准。通过添加水印引起的错误可能会扩散到半色调图像中。

89. 发明授权

US06826304B2 Reducing halos in spatially dependent gamut mapping 失效
标题翻译：在空间依赖的色域映射中减少光晕
公开(公告)号：US06826304B2
公开(公告)日：2004-11-30
申请号：US10096303
申请日：2002-03-13
申请人： Avraham Levy , Doron Shaked
发明人： Avraham Levy , Doron Shaked
IPC分类号： H04N160
CPC分类号： H04N1/6058
摘要： A method and apparatus for color image processing using gamut mapping reduces halo artifacts by correcting terms in a gamut mapping algorithm. The color image may be represented by f, the in gamut image by g, the target gamut by C, and the gamut constraint by c. The method for reducing halo artifacts includes two correction steps. First a color distance term L2 in the gamut mapping algorithm is corrected. Second, a distance measure of an image gradient in the gamut mapping algorithm is corrected. The first correcting step comprises computing a function u=projectC(ƒ). The second correcting step comprises computing a scaled down function for f. Next, a function g(x,y) is determined that minimizes a functional comprising the color distance term and the image gradient term. The solution may be determined by iteration using a gradient descent operation by first initializing g0=projectC(ƒ), and then performing one or more iteration steps to compute g(x,y).
摘要翻译：使用色域映射进行彩色图像处理的方法和装置通过校正色域映射算法中的项来减少光晕伪影。彩色图像可以由f表示，色域图像乘以g，目标色域为C，色域约束为c。减少光晕伪影的方法包括两个校正步骤。首先校正色域映射算法中的色彩距离项L2。第二，校正色域映射算法中的图像梯度的距离度量。第一校正步骤包括计算函数u = projectC（f）。第二校正步骤包括计算f的缩小函数。接下来，确定使包括颜色距离项和图像梯度项的功能最小化的函数g（x，y）。通过首先初始化g0 = projectC（f），然后执行一个或多个迭代步骤来计算g（x，y），可以通过使用梯度下降操作的迭代来确定解。

90. 发明授权

US06775393B2 Hardcopy watermarking 失效
标题翻译：硬拷贝水印
公开(公告)号：US06775393B2
公开(公告)日：2004-08-10
申请号：US09840575
申请日：2001-04-23
申请人： Avraham Levy , Doron Shaked
发明人： Avraham Levy , Doron Shaked
IPC分类号： G06K900
CPC分类号： H04N1/32 , G06T1/005 , G06T2201/0065 , H04N1/32187 , H04N2201/3233 , H04N2201/327 , H04N2201/3271 , H04N2201/328 , H04N2201/3284
摘要： A digital image is hardcopy watermarked by modifying transform coefficients in a transform domain representation of the digital image, the transforms coefficients being modified according to bit values of an n-bit message. A message in a hardcopy watermarked image is identified by statistically decoding a transform domain representation of the watermarked image.
摘要翻译：通过修改数字图像的变换域表示中的变换系数，数字图像被硬拷贝水印，根据n位消息的位值来修改变换系数。通过统计解码水印图像的变换域表示来识别硬拷贝水印图像中的消息。

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