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1. 发明申请

US20070025622A1 SEGMENTED LAYERED IMAGE SYSTEM 有权
标题翻译： SEGMENTED层状图像系统
公开(公告)号：US20070025622A1
公开(公告)日：2007-02-01
申请号：US11465087
申请日：2006-08-16
申请人： Patrice Simard , Erin Renshaw , James Rinker , Henrique Malvar
发明人： Patrice Simard , Erin Renshaw , James Rinker , Henrique Malvar
IPC分类号： G06K9/36
CPC分类号： H04N1/403 , G06K9/00456
摘要： Systems and methods for encoding and decoding document images are disclosed. Document images are segmented into multiple layers according to a mask. The multiple layers are non-binary. The respective layers can then be processed and compressed separately in order to achieve better compression of the document image overall. A mask is generated from a document image. The mask is generated so as to reduce an estimate of compression for the combined size of the mask and multiple layers of the document image. The mask is then employed to segment the document image into the multiple layers. The mask determines or allocates pixels of the document image into respective layers. The mask and the multiple layers are processed and encoded separately so as to improve compression of the document image overall and to improve the speed of so doing. The multiple layers are non-binary images and can, for example, comprise a foreground image and a background image.
摘要翻译：公开了用于编码和解码文档图像的系统和方法。根据掩码将文档图像分割成多个图层。多层是非二进制的。然后可以分别对各个层进行处理和压缩，以便对整个文件图像实现更好的压缩。从文档图像生成蒙版。生成掩模，以减少对于掩模和文档图像的多个层的组合大小的压缩估计。然后使用掩模将文档图像分割成多个层。掩模将文档图像的像素确定或分配到各个图层中。掩模和多层被单独处理和编码，以便整体上改善文档图像的压缩并提高这样做的速度。多层是非二进制图像，并且可以例如包括前景图像和背景图像。

2. 发明申请

US20050271281A1 Clustering 有权
标题翻译：聚类
公开(公告)号：US20050271281A1
公开(公告)日：2005-12-08
申请号：US11198562
申请日：2005-08-05
申请人： Patrice Simard , Henrique Malvar , Erin Renshaw
发明人： Patrice Simard , Henrique Malvar , Erin Renshaw
IPC分类号： G06T7/00 , G06F19/00 , G06K9/20 , G06K9/36 , G06K9/46 , G06K9/62 , G06K9/64 , G06K9/68 , G06T5/00 , G06T11/00
CPC分类号： G06K9/00442 , G06K9/46 , G06K9/6202 , G06K2209/01
摘要： Systems and methods for performing clustering of a document image are disclosed. A property of an extracted mark from a document is compared to the properties of the existing clusters. If the property of the mark fails to match any of the properties of the existing clusters, the mark is added as a new cluster to the existing cluster. One property that can be utilized is x size and y size, which is the width and height, of the existing clusters. Another property that can be employed is ink size, which refers to the ratio of black pixels to total pixels in a cluster. Yet another property that can be utilized is a reduced mark or image, which is a pixel size reduced version the bitmap of the mark and/or cluster. The above properties can be employed to identify mismatches and reduce the number of bit by bit comparisons performed.
摘要翻译：公开了用于执行文档图像的聚类的系统和方法。将来自文档的提取标记的属性与现有集群的属性进行比较。如果标记的属性无法匹配现有集群的任何属性，则该标记作为新集群添加到现有集群。可以使用的一个属性是x size和y size，这是现有集群的宽度和高度。可以使用的另一个属性是墨水大小，其指的是群集中黑色像素与总像素的比例。可以使用的另一个属性是缩小的标记或图像，其是像素尺寸缩小版本的标记和/或集群的位图。可以采用上述特性来识别不匹配并减少进行的逐比较比较。

3. 发明申请

US20070242888A1 COMPRESSION OF BI-LEVEL IMAGES WITH EXPLICIT REPRESENTATION OF INK CLUSTERS 有权
标题翻译：压缩图像的双层图像与墨盒的突出表现
公开(公告)号：US20070242888A1
公开(公告)日：2007-10-18
申请号：US11734299
申请日：2007-04-12
申请人： Erin Renshaw , Patrice Simard , Henrique Malvar
发明人： Erin Renshaw , Patrice Simard , Henrique Malvar
IPC分类号： G06K9/36
CPC分类号： G06K9/6202 , G06T9/001 , H04N1/4115 , H04N19/97
摘要： A system and method facilitating compression of bi-level images with explicit representation of ink clusters is provided. The present invention includes a cluster shape estimator that analyzes connected component information, extracts clusters and stores the cluster in a global dictionary, a page dictionary or a store of unclustered shapes. A bitmap estimation from clusters component determines dictionary positions for clusters stored in the global dictionary which are then encoded. A cluster position estimator determines page positions of clusters of the global dictionary and/or the page dictionary that are then encoded. Further, the global dictionary, the page dictionary and the store of unclustered shapes are also encoded.
摘要翻译：提供了一种利用墨簇的显式表示促进双层图像压缩的系统和方法。本发明包括分析连接的分量信息的群集形状估计器，提取群集并将群集存储在全局词典，页面字典或非群集形状的存储中。来自簇组件的位图估计确定存储在全局字典中的簇的字典位置，然后对其进行编码。集群位置估计器确定然后被编码的全局字典和/或页字典的集群的页面位置。此外，还编码了全局字典，页字典和未分簇形状的存储。

4. 发明申请

US20060083439A1 "Don't care" pixel interpolation 有权
公开(公告)号：US20060083439A1
公开(公告)日：2006-04-20
申请号：US11286622
申请日：2005-11-23
申请人： Henrique Malvar , Patrice Simard , James Rinker
发明人： Henrique Malvar , Patrice Simard , James Rinker
IPC分类号： G06K9/40 , G06K9/34
CPC分类号： G06T5/005 , G06T5/20 , G06T7/136 , G06T7/194
摘要： A system and method facilitating image smoothing is provided. The invention includes an image processor having an image receptor and an image smoother. The invention provides for the image smoother to alter the value of a don't care pixel based, at least in part, upon a weighted average of care pixels.

5. 发明申请

US20060274381A1 SYSTEM AND METHOD FACILITATING DOCUMENT IMAGE COMPRESSION UTILIZING A MASK 有权
标题翻译：系统和方法利用文字图像压缩文件
公开(公告)号：US20060274381A1
公开(公告)日：2006-12-07
申请号：US11465083
申请日：2006-08-16
申请人： Patrice Simard , Erin Renshaw , James Rinker
发明人： Patrice Simard , Erin Renshaw , James Rinker
IPC分类号： H04N1/00
CPC分类号： G06K9/38 , G06K2209/01
摘要： A system and method facilitating document image compression utilizing a mask separating a foreground of a document image from a background is provided. The invention includes a pixel energy analyzer adapted to partition regions into a foreground and background. The invention further provides for a merge region component adapted to attempt to merge regions if the merged region would not exceed a threshold energy. Merged regions are partitioned into a new foreground and new background. Thereafter, a mask storage component stores the partitioning information in a binary mask.
摘要翻译：提供了利用从背景分离文档图像的前景的掩模来促进文档图像压缩的系统和方法。本发明包括适于将区域分割成前景和背景的像素能量分析器。本发明还提供了一种合并区域组件，其适于在合并区域不超过阈值能量时试图合并区域。合并的区域被划分为新的前景和新的背景。此后，掩模存储部件将分割信息存储在二进制掩码中。

6. 发明申请

US20060078210A1 Tarp filter 有权
标题翻译：篷布过滤器
公开(公告)号：US20060078210A1
公开(公告)日：2006-04-13
申请号：US11287671
申请日：2005-11-28
申请人： Patrice Simard , Henrique Malvar , Dinei Florencio , David Steinkraus
发明人： Patrice Simard , Henrique Malvar , Dinei Florencio , David Steinkraus
IPC分类号： G06K9/36
CPC分类号： G06T9/004 , G06T9/007
摘要： Systems and methods for performing adaptive filtering are disclosed. The present invention generates probabilities that can be used in an encoder, such as an arithmetic encoder and generates those probabilities in a computationally efficient manner. Probabilities of previously encoded coefficients are employed, effectively, in generating probabilities of the coefficients without regard to directional information. Thus, a large amount of information is adaptively and efficiently used in generating the probabilities. For the coefficients, the probability is computed based at least partly on at least one probability of a previously computed probability of a neighboring coefficient. Then, the coefficients are encoded using those computed probabilities.
摘要翻译：公开了用于执行自适应滤波的系统和方法。本发明产生可以在诸如算术编码器的编码器中使用的概率，并以计算有效的方式生成这些概率。先前编码的系数的概率被有效地用于在不考虑方向信息的情况下生成系数的概率。因此，在生成概率时自适应地有效地使用大量的信息。对于系数，概率至少部分地基于先前计算的相邻系数的概率的至少一个概率来计算。然后，使用那些计算的概率对系数进行编码。

7. 发明申请

US20060171604A1 Block retouching 有权
公开(公告)号：US20060171604A1
公开(公告)日：2006-08-03
申请号：US11393297
申请日：2006-03-30
申请人： Patrice Simard , Henrique Malvar
发明人： Patrice Simard , Henrique Malvar
IPC分类号： G06K9/56 , G06K9/44 , G06K9/40
CPC分类号： G06T5/005 , G06T7/194 , H04N19/60 , H04N19/86
摘要： A system and method facilitating image retouching is provided. The invention includes an image retoucher having a boundary detector and an image extender. The invention provides for the image retoucher to extend care pixels of at least one of a foreground and a background near a detected spurious boundary by altering the binary mask used for compression of the foreground and/or the background.

8. 发明申请

US20050259866A1 Low resolution OCR for camera acquired documents 有权
标题翻译：相机采集文件的低分辨率OCR
公开(公告)号：US20050259866A1
公开(公告)日：2005-11-24
申请号：US10850335
申请日：2004-05-20
申请人： Charles Jacobs , James Rinker , Patrice Simard , Paul Viola
发明人： Charles Jacobs , James Rinker , Patrice Simard , Paul Viola
IPC分类号： G06K9/20 , G06K9/34 , G06K9/46 , G06K9/66 , G06K9/72 , G06N3/00 , G06K9/62 , G06K9/18
CPC分类号： G06K9/344 , G06K9/00463 , G06K9/4614 , G06K9/4628 , G06K9/723 , G06K2209/01
摘要： A global optimization framework for optical character recognition (OCR) of low-resolution photographed documents that combines a binarization-type process, segmentation, and recognition into a single process. The framework includes a machine learning approach trained on a large amount of data. A convolutional neural network can be employed to compute a classification function at multiple positions and take grey-level input which eliminates binarization. The framework utilizes preprocessing, layout analysis, character recognition, and word recognition to output high recognition rates. The framework also employs dynamic programming and language models to arrive at the desired output.
摘要翻译：低分辨率拍摄文档的光学字符识别（OCR）的全局优化框架，将二值化类型过程，分割和识别结合到一个过程中。该框架包括对大量数据进行培训的机器学习方法。可以采用卷积神经网络来计算多个位置的分类函数，并采用消除二值化的灰度级输入。该框架利用预处理，布局分析，字符识别和字识别来输出高识别率。该框架还采用动态编程和语言模型来达到所需的输出。

9. 发明申请

US20070133883A1 Logical structure and layout based offline character recognition 有权
标题翻译：基于逻辑结构和布局的离线字符识别
公开(公告)号：US20070133883A1
公开(公告)日：2007-06-14
申请号：US11299873
申请日：2005-12-12
申请人： Kumar Chellapilla , Patrice Simard
发明人： Kumar Chellapilla , Patrice Simard
IPC分类号： G06K9/62
CPC分类号： G06K9/80
摘要： A method and system for implementing character recognition is described herein. An input character is received. The input character is composed of one or more logical structures in a particular layout. The layout of the one or more logical structures is identified. One or more of a plurality of classifiers are selected based on the layout of the one or more logical structures in the input character. The entire character is input into the selected classifiers. The selected classifiers classify the logical structures. The outputs from the selected classifiers are then combined to form an output character vector.
摘要翻译：本文描述了用于实现字符识别的方法和系统。接收到一个输入字符。输入字符由特定布局中的一个或多个逻辑结构组成。识别一个或多个逻辑结构的布局。基于输入字符中的一个或多个逻辑结构的布局来选择多个分类器中的一个或多个。整个字符被输入到所选择的分类器中。所选分类器对逻辑结构进行分类。然后将所选分类器的输出组合以形成输出字符向量。

10. 发明申请

US20050180597A1 Whiteboard imaging system 有权
标题翻译：白板成像系统
公开(公告)号：US20050180597A1
公开(公告)日：2005-08-18
申请号：US11095815
申请日：2005-03-31
申请人： Patrice Simard , Michael Sinclair
发明人： Patrice Simard , Michael Sinclair
IPC分类号： G06K9/00 , G06K9/20 , G06K9/36 , G06K9/40 , G09G5/00
CPC分类号： G06F3/0425 , B43L1/00 , H04N7/142
摘要： An image capturing system is installable in a room separate from a writing surface and a second area. The image capturing system is adapted to take visual images of the writing surface and second area and identify information written thereon.
摘要翻译：图像捕获系统可安装在与书写表面和第二区域分离的房间中。图像拍摄系统适于拍摄书写表面和第二区域的视觉图像，并识别写在其上的信息。

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