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31. 发明授权

US08548193B2 Method and apparatus for navigating an electronic magnifier over a target document 有权
标题翻译：用于在目标文件上导航电子放大镜的方法和装置
公开(公告)号：US08548193B2
公开(公告)日：2013-10-01
申请号：US12553207
申请日：2009-09-03
申请人： Eric Saund , Lawrence C. Lee , Doron Kletter
发明人： Eric Saund , Lawrence C. Lee , Doron Kletter
IPC分类号： G06K9/00
CPC分类号： G06T7/33 , G06T2207/10148 , G06T2207/20164
摘要： A method for electronically magnifying a target object with an imaging device. The method includes obtaining a full view image of the target object, where the full view image is focused. The method further includes moving the imaging device in proximity to a portion of the target object and obtaining a key image of the portion of the target object. The method further includes matching the key image to a corresponding portion of the full view image. The method further includes magnifying the corresponding portion of the full view image and displaying the magnified portion of the full view image.
摘要翻译：一种用成像装置电子放大目标物体的方法。该方法包括获得目标对象的全视图图像，其中全视图图像被聚焦。该方法还包括将成像设备移动到目标对象的一部分附近并获得目标对象的该部分的关键图像。该方法还包括将关键图像与全视图图像的相应部分进行匹配。该方法还包括放大全视图图像的相应部分并显示全视图图像的放大部分。

32. 发明授权

US08233716B2 System and method for finding stable keypoints in a picture image using localized scale space properties 有权
标题翻译：使用局部尺度空间属性在图像图像中找到稳定关键点的系统和方法
公开(公告)号：US08233716B2
公开(公告)日：2012-07-31
申请号：US12147867
申请日：2008-06-27
申请人： Doron Kletter
发明人： Doron Kletter
IPC分类号： G06K9/46
CPC分类号： G06K9/4623 , G06K9/4671 , G06T7/13 , G06T2207/20016 , G06T2207/30201
摘要： A method and system is provided for finding stable keypoints in a picture image using localized scale properties. An integral image of an input image is calculated. Then a scale space pyramid layer representation of the input image is constructed at mulitple scales, wherein at each scale, a set of specific filters are applied to the input image to produce an approximation of at least a portion of the input image. Outputs from filters are combined together to form a single function of scale and space. Stable keypoint locations are identified in each scale at pixel locations at which the single function attains a local peak value. The stable keypoint locations which have been identified are then stored in a memory storage.
摘要翻译：提供一种方法和系统，用于使用局部尺度特性在图像图像中找到稳定的关键点。计算输入图像的整体图像。然后，在多尺度上构建输入图像的尺度空间金字塔层表示，其中在每个刻度处，将一组特定滤波器应用于输入图像以产生输入图像的至少一部分的近似。来自滤波器的输出组合在一起，形成一个单一的刻度和空间功能。在单个功能达到局部峰值的像素位置处，在每个刻度中标识稳定的关键点位置。然后将已经识别的稳定关键点位置存储在存储器存储器中。

33. 发明授权

US08086039B2 Fine-grained visual document fingerprinting for accurate document comparison and retrieval 有权
标题翻译：精细的视觉文件指纹识别，用于准确的文档比较和检索
公开(公告)号：US08086039B2
公开(公告)日：2011-12-27
申请号：US12701159
申请日：2010-02-05
申请人： Doron Kletter
发明人： Doron Kletter
IPC分类号： G06K9/46
CPC分类号： H04N1/32229 , G06F17/30011 , H04N2201/3235 , H04N2201/3236 , H04N2201/327
摘要： A method and system generates fine-grained fingerprints for identifying content in a rendered document. It includes applying image-based techniques to identify patterns in a document rendered by an electronic document rendering system, irrespective of a file format in which the rendered document was electronically created. The applying of the image-based technique includes identifying candidate keypoints at locations in a local image neighborhood of the document, and combining the locations of the candidate keypoints to form a fine-grained fingerprint identifying patterns representing content in the document.
摘要翻译：方法和系统生成用于识别呈现文档中的内容的细粒度指纹。它包括应用基于图像的技术来识别由电子文档呈现系统呈现的文档中的图案，而不管其中呈现的文档被电子地创建的文件格式。应用基于图像的技术包括在文档的本地图像邻域中的位置处识别候选关键点，并且组合候选关键点的位置以形成表示文档中的内容的细粒度指纹。

34. 发明申请

US20110194736A1 FINE-GRAINED VISUAL DOCUMENT FINGERPRINTING FOR ACCURATE DOCUMENT COMPARISON AND RETRIEVAL 有权
标题翻译：精细的视觉文件指纹精确的文件比较和检索
公开(公告)号：US20110194736A1
公开(公告)日：2011-08-11
申请号：US12701159
申请日：2010-02-05
申请人： Doron Kletter
发明人： Doron Kletter
IPC分类号： G06K9/00
CPC分类号： H04N1/32229 , G06F17/30011 , H04N2201/3235 , H04N2201/3236 , H04N2201/327
摘要： A method and system generates fine-grained fingerprints for identifying content in a rendered document. It includes applying image-based techniques to identify patterns in a document rendered by an electronic document rendering system, irrespective of a file format in which the rendered document was electronically created. The applying of the image-based technique includes identifying candidate keypoints at locations in a local image neighborhood of the document, and combining the locations of the candidate keypoints to form a fine-grained fingerprint identifying patterns representing content in the document.
摘要翻译：方法和系统生成用于识别呈现文档中的内容的细粒度指纹。它包括应用基于图像的技术来识别由电子文档呈现系统呈现的文档中的图案，而不管其中呈现的文档被电子地创建的文件格式。应用基于图像的技术包括在文档的本地图像邻域中的位置处识别候选关键点，并且组合候选关键点的位置以形成表示文档中的内容的细粒度指纹。

35. 发明授权

US07308136B2 Weak edge repositioning in a MRC segmentor 有权
标题翻译：弱边缘重新定位在MRC分段
公开(公告)号：US07308136B2
公开(公告)日：2007-12-11
申请号：US10612250
申请日：2003-07-01
申请人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
发明人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
IPC分类号： G06K9/00 , G06K9/34 , G06K1/00 , G06K15/00 , G06F15/00
CPC分类号： G06K9/38 , G06K2209/01 , G06T7/12 , G06T2207/10008 , G06T2207/20192 , G06T2207/30176 , H04N1/642 , H04N19/27 , H04N19/29 , H04N19/60 , H04N19/86
摘要： A method for improving mixed raster compression segmentation utilizes a second stage of a process to generate the MRC Selector plane by operating on a multibit selector (GraySel) signal which is produced by a first stage process. The first stage methods used to generated the GraySel can be PDL or scan oriented. The binary Selector signal produced by the second stage minimizes the compression noise evident in the reconstructed image. This second stage processing relies on knowing the size of the JPEG minimum coded unit (MCU) which will be used to compress the segmented Foreground and Background planes. The idea is to move false (soft) edges away from the real (hard) edges by as large a distance as possible up to the point where they fall off the boundary of the MCU block. Thus a soft edge which occurs between two hard edges is either eliminated or repositioned to the midpoint and a soft edge between a hard edge and the MCU boundary is moved to the boundary. Since JPEG MCU blocks are compressed independently, transitions at the boundary cause no ‘ringing’ in the decompressed output.
摘要翻译：一种用于改进混合光栅压缩分段的方法利用一个过程的第二阶段通过对由第一阶段过程产生的多位选择器（GraySel）信号进行操作而产生MRC选择器平面。用于生成GraySel的第一阶段方法可以是PDL或扫描。由第二级产生的二进制选择器信号将重建图像中显而易见的压缩噪声最小化。该第二阶段处理依赖于知道将用于压缩分段的前景和背景平面的JPEG最小编码单元（MCU）的大小。这个想法是将假（软）边缘从真实（硬）边缘移开尽可能大的距离，直到它们从MCU块的边界掉下来。因此，发生在两个硬边缘之间的软边缘被消除或重新定位到中点，并且硬边缘和MCU边界之间的软边缘移动到边界。由于JPEG MCU块被独立压缩，所以在边界处的转换在解压缩输出中不会发生“振铃”。

36. 发明授权

US07302116B2 Method and apparatus for reduced size image 有权
标题翻译：缩小尺寸图像的方法和装置
公开(公告)号：US07302116B2
公开(公告)日：2007-11-27
申请号：US10776620
申请日：2004-02-12
申请人： Donald J. Curry , Asghar Nafarieh , Doron Kletter
发明人： Donald J. Curry , Asghar Nafarieh , Doron Kletter
IPC分类号： G06K9/32
CPC分类号： G06T3/4023
摘要： Reduced size images may be generated by separating dimensions that span the original image into a plurality of groups so that data in each group of one or more dimensions may be processed differently from data of other groups. For example, for two-dimensional images, pixels of selected lines may be completely discarded or skipped while pixels of remaining lines may be processed along the x-dimension to obtain data of the reduced size image. The main advantages include very fast and efficient implementation, minimal storage requirements, and good image quality.
摘要翻译：可以通过将跨越原始图像的维度分离成多个组来生成缩小尺寸的图像，使得可以以与其他组的数据不同的方式处理一个或多个维度的每个组中的数据。例如，对于二维图像，可以完全丢弃或跳过所选行的像素，同时可以沿x维度处理剩余行的像素以获得缩小尺寸图像的数据。主要优点包括非常快速高效的实现，最小的存储要求和良好的图像质量。

37. 发明授权

US07233695B2 Scan color conversion method 有权
标题翻译：扫描颜色转换方法
公开(公告)号：US07233695B2
公开(公告)日：2007-06-19
申请号：US10612261
申请日：2003-07-01
申请人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
发明人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
IPC分类号： G06K9/00 , G09G5/00 , H04N1/46
CPC分类号： H04N1/6019 , H04N1/41 , H04N1/646
摘要： A method and a system for computing the function value of an input node based on function values of known nodes. A database of known nodes and their corresponding function values is formed. The known nodes are located such that a distance between any two adjacent known nodes is an integer power-of-two number. The database is searched for a first node such that the input node is located between the first node and an adjacent second node. The difference δ between the input node and the first node is computed. Then δ is shifted to the right by k positions, k being the logarithm in base 2 of the distance between the first and second nodes. The input node function value is computed by combining the first node function value with the product of the shifted δ and the difference between the function values of the second and first nodes. When used in MRC context, the above method and system is applied to each of the color MRC planes individually, instead of the merged output. The resulting performance is approved since most if not all of the color MRC planes are sub-sampled.
摘要翻译：一种基于已知节点的功能值计算输入节点的功能值的方法和系统。形成已知节点的数据库及其对应的功能值。已知节点被定位成使得任何两个相邻的已知节点之间的距离是二进制数的整数。搜索数据库以获得第一节点，使得输入节点位于第一节点和相邻的第二节点之间。计算输入节点和第一个节点之间的差异增量。然后，δ向右移动k个位置，k是第一和第二个节点之间的距离的基数2中的对数。输入节点功能值是通过将第一个节点功能值与移位的增量的乘积和第二个和第一个节点的功能值的差值相结合来计算的。当在MRC上下文中使用时，将上述方法和系统单独地应用于每个彩色MRC平面，而不是合并的输出。所得到的性能被批准，因为大多数（如果不是全部）彩色MRC平面都被子采样。

38. 发明授权

US06983076B2 Control system for digital de-screening of documents 失效
标题翻译：数字解除档案的控制系统
公开(公告)号：US06983076B2
公开(公告)日：2006-01-03
申请号：US10188026
申请日：2002-07-01
申请人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
发明人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
IPC分类号： G06K9/40 , H04N1/405
CPC分类号： G06T5/004 , G06T5/20 , H04N1/40075
摘要： A method and a system for controlling de-screening of documents. The control system is included in a de-screening system including a bank of filters. The filter bank receives an image signal and produces a set of filter output signals. The control system comprises a contrast module, a halftone estimate module and a pixel control module. The contrast module receives a filter output signal from a filter having a large filter span and produces a contrast signal. The halftone estimate module receives the image signal and a filter output signal from a filter having a small filter span and produces an estimated frequency signal and a halftone weight signal. Based on the contrast signal, the estimated frequency signal and the halftone weight signal, the pixel control module produces a control signal which includes information regarding which of the filter output signals are to be blended and the proportion of blending.
摘要翻译：一种用于控制文件的筛选的方法和系统。控制系统包括在一个包括一组过滤器的去筛选系统中。滤波器组接收图像信号并产生一组滤波器输出信号。控制系统包括对比度模块，半色调估计模块和像素控制模块。对比度模块从具有较大滤波器跨度的滤波器接收滤波器输出信号并产生对比度信号。半色调估计模块从具有小滤波器跨度的滤波器接收图像信号和滤波器输出信号，并产生估计的频率信号和半色调加权信号。基于对比度信号，估计的频率信号和半色调加权信号，像素控制模块产生一个控制信号，该控制信号包括关于要混合哪个滤波器输出信号的信息和混合比例。

39. 发明授权

US06975331B2 Method and system for efficient interpolation using programmable node spacing 失效
标题翻译：使用可编程节点间隔进行高效插值的方法和系统
公开(公告)号：US06975331B2
公开(公告)日：2005-12-13
申请号：US10134236
申请日：2002-04-26
申请人： Doron Kletter
发明人： Doron Kletter
IPC分类号： G06F17/17 , G06T1/00 , H04N1/46 , H04N1/60 , G09G5/02
CPC分类号： G06F17/175
摘要： A method and a system for computing the function value of an input node based on function values of known nodes. A database of known nodes and their corresponding function values is formed. The known nodes are located such that a distance between any two adjacent known nodes is an integer power-of-two number. The database is searched for a first node such that the input node is located between the first node and an adjacent second node. The difference δ between the input node and the first node is computed. Then δ is shifted to the right by k positions, k being the logarithm in base 2 of the distance between the first and second nodes. The input node function value is computed by combining the first node function value with the product of the shifted δ and the difference between the function values of the second and first nodes.
摘要翻译：一种基于已知节点的功能值计算输入节点的功能值的方法和系统。形成已知节点的数据库及其对应的功能值。已知节点被定位成使得任何两个相邻的已知节点之间的距离是二进制数的整数。搜索数据库以获得第一节点，使得输入节点位于第一节点和相邻的第二节点之间。计算输入节点和第一个节点之间的差异增量。然后，δ向右移动k个位置，k是第一和第二个节点之间的距离的基数2中的对数。输入节点功能值是通过将第一个节点功能值与移位的增量的乘积和第二个和第一个节点的功能值的差值相结合来计算的。

40. 发明授权

US06859204B2 Dynamic threshold system for multiple raster content (MRC) representation of documents 失效
标题翻译：用于多个光栅内容（MRC）表示文档的动态阈值系统
公开(公告)号：US06859204B2
公开(公告)日：2005-02-22
申请号：US10188277
申请日：2002-07-01
申请人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
发明人： Donald J. Curry , Doron Kletter , Asghar Nafarieh
IPC分类号： G06K9/20 , G06K9/38 , G06T5/00
CPC分类号： G06K9/38 , G06K9/00456 , G06K2209/01 , G06T7/11 , G06T7/194 , G06T2207/10008 , G06T2207/20012 , G06T2207/30176
摘要： A method and a system for dynamically thresholding an image signal. The system comprises a computing block. The computing block receives the image signal and a minimum and a maximum within each of a set of windows centered on the current pixel in the image signal, and computes, for each of the windows, based on the current pixel and the respective minimum and maximum, a respective indicator representing the distance and direction of the current pixel relative to a respective threshold plane, and outputs a control signal based on the indicators.
摘要翻译：一种用于动态阈值化图像信号的方法和系统。该系统包括计算块。计算块在图像信号中以当前像素为中心的一组窗口的每一个的每一个中接收图像信号，并且接收最小和最大值，并且基于当前像素和相应的最小和最大值来计算每个窗口，表示当前像素相对于相应阈值平面的距离和方向的相应指示符，并且基于指示符输出控制信号。

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