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1. 发明授权

US11312049B2 Additive manufacturing system for halftone colored 3D objects 有权
公开(公告)号：US11312049B2
公开(公告)日：2022-04-26
申请号：US16374185
申请日：2019-04-03
申请人： Xerox Corporation
发明人： Marc D. Daniels , Wayne A. Buchar , Roger L. Triplett , Martin S. Maltz
IPC分类号： B29C45/16 , B33Y10/00 , B33Y70/00 , B33Y30/00
摘要： A 3D printing system applies colored powders (e.g., primary colors, white, black, cyan, magenta, yellow, fluorescent colors, metallic) in printed polymer layers for forming a colored 3D object. The system may stabilize a powder layer or color sub-layers thereof, for example with one or more of heat, pressure, and/or high-intensity light. On each layer, powders of various colors may be sequentially deposited in a halftone pattern and stabilized, so as to create a part with a specified arrangement of colors throughout its structure. Benefits include more stable color than strategies involving jetting colored fluids. The arrangement of color on the interior of the part could provide functional or traceability benefits for specific applications. The examples allow for depositing a greater quantity of powder on each fiber base or substrate, decreasing the ratio of fiber to powder and increasing production speed.

2. 发明申请

US20170161581A1 EXPLOITING COLOR FOR LICENSE PLATE RECOGNITION 有权
公开(公告)号：US20170161581A1
公开(公告)日：2017-06-08
申请号：US14960627
申请日：2015-12-07
申请人： Xerox Corporation
发明人： Vladimir Kozitsky , Martin S. Maltz
IPC分类号： G06K9/32 , G06T7/40 , G06T7/00
CPC分类号： G06K9/3258 , G06K2209/01 , G06K2209/15 , G06T7/11 , G06T7/90 , G06T2207/10024 , G06T2207/30252
摘要： Methods and systems for exploiting color for object recognition. A color gradient for each pixel in a gradient image of an object can be calculated. The gradient image can be binarized to produce an image having white walls around characters and other structures. A connected component analysis operation can be performed with respect to black regions in the image to determine bounding boxes for characters and other pictorial elements in the image and thereafter identify character candidates from the image utilizing character metrics. Non-character colors can then be eliminated from the image utilizing an outlier rejection.

3. 发明授权

US09430457B2 Ambiguity reduction for image alignment applications 有权
标题翻译：图像校准应用的模糊度降低
公开(公告)号：US09430457B2
公开(公告)日：2016-08-30
申请号：US14582321
申请日：2014-12-24
申请人： Xerox Corporation
发明人： Martin S. Maltz
IPC分类号： G06F17/24 , H04N1/387
CPC分类号： G06F17/243 , G06F17/248 , H04N1/3873 , H04N2201/0081
摘要： According to exemplary systems and methods, a template is partitioned into blocks using an image processor. An image is scanned using an optical scanner. The image is aligned to the template. Image features are matched with template features in the blocks of the template. Displacement vectors are identified for differences of the image features from the template features. Normalized cross correlation (NCC) is determined between blocks of the image and each block of the template using the image processor. Peaks in the NCC are identified. A displacement vector is selected for a peak with highest NCC for each the block of the template. Ambiguous template features are identified in the image based on the displacement vector. Blocks are iteratively combined and NCC determined to remove the ambiguous template features.
摘要翻译：根据示例性系统和方法，使用图像处理器将模板分割成块。使用光学扫描仪扫描图像。图像与模板对齐。图像特征与模板块中的模板特征相匹配。识别图像特征与模板特征的差异的位移向量。使用图像处理器在图像的块和模板的每个块之间确定归一化互相关（NCC）。确定NCC中的峰。为模板的每个块选择具有最高NCC的峰的位移矢量。基于位移矢量在图像中识别不明确的模板特征。块被迭代组合，并且确定NCC以消除模糊模板特征。

4. 发明授权

US10255484B2 Method and system for assessing facial skin health from a mobile selfie image 有权
公开(公告)号：US10255484B2
公开(公告)日：2019-04-09
申请号：US15414095
申请日：2017-01-24
申请人： Xerox Corporation
发明人： Martin S. Maltz , Matthew Adam Shreve , Luisa Fernanda Polania Cabrera , Stephen C. Morgana , Raja Bala , Paul Jonathan Matts , Ankur Purwar
IPC分类号： G06K9/00 , G09B19/00 , A61B5/00 , G06Q30/06 , G06T7/40 , G06T7/90 , H04N1/00 , G06K9/46
摘要： A method, non-transitory computer readable medium and apparatus for transmitting an assessment of facial skin health of a customer are disclosed. For example, the method includes receiving an image of a customer from a mobile endpoint device of the customer, analyzing one or more parameters of a facial skin of the customer in the image of the customer, determining the assessment of facial skin health of the customer based on the one or more parameters of the facial skin that are analyzed and transmitting the assessment of facial skin health to the mobile endpoint device of the customer to cause the mobile endpoint device to automatically display the assessment of facial skin health.

5. 发明授权

US09824289B2 Exploiting color for license plate recognition 有权
公开(公告)号：US09824289B2
公开(公告)日：2017-11-21
申请号：US14960627
申请日：2015-12-07
申请人： Xerox Corporation
发明人： Vladimir Kozitsky , Martin S. Maltz
IPC分类号： G06K9/00 , G06K9/32 , G06T7/00 , G06T7/40
CPC分类号： G06K9/3258 , G06K2209/01 , G06K2209/15 , G06T7/11 , G06T7/90 , G06T2207/10024 , G06T2207/30252
摘要： Methods and systems for exploiting color for object recognition. A color gradient for each pixel in a gradient image of an object can be calculated. The gradient image can be binarized to produce an image having white walls around characters and other structures. A connected component analysis operation can be performed with respect to black regions in the image to determine bounding boxes for characters and other pictorial elements in the image and thereafter identify character candidates from the image utilizing character metrics. Non-character colors can then be eliminated from the image utilizing an outlier rejection.

6. 发明申请

US20170270691A1 METHOD AND SYSTEM FOR GENERATING ACCURATE GRAPHICAL CHROMOPHORE MAPS 审中-公开
公开(公告)号：US20170270691A1
公开(公告)日：2017-09-21
申请号：US15414305
申请日：2017-01-24
申请人： Xerox Corporation
发明人： Martin S. Maltz , Luisa Fernanda Polania Cabrera , Paul Jonathan Matts , Ankur Purwar
IPC分类号： G06T11/00 , G06T7/90 , G06T7/00
CPC分类号： G06T11/001 , G06T7/0014 , G06T7/90 , G06T2207/10024 , G06T2207/30088
摘要： A method, non-transitory computer readable medium and apparatus for generating one or more graphical chromophore maps are disclosed. For example, the method includes receiving a plurality of images from a plurality of different customers, estimating a plurality of different illuminates that were used to capture each one of the plurality of images, calculating a correlation of a spectral reflectance of a lip region of a customer with an absorption curve of hemoglobin for the each one of the plurality of images for each one of the plurality of different illuminates that is estimated, selecting an illuminance of the plurality of different illuminates that provides a highest correlation and generating one or more graphical chromophore maps for subsequently received images of customers using the illuminance that is selected.

7. 发明申请

US20160188559A1 AMBIGUITY REDUCTION FOR IMAGE ALIGNMENT APPLICATIONS 有权
标题翻译：图像对准应用的缩减
公开(公告)号：US20160188559A1
公开(公告)日：2016-06-30
申请号：US14582321
申请日：2014-12-24
申请人： Xerox Corporation
发明人： Martin S. Maltz
IPC分类号： G06F17/24 , H04N1/387
CPC分类号： G06F17/243 , G06F17/248 , H04N1/3873 , H04N2201/0081
摘要： According to exemplary systems and methods, a template is partitioned into blocks using an image processor. An image is scanned using an optical scanner. The image is aligned to the template. Image features are matched with template features in the blocks of the template. Displacement vectors are identified for differences of the image features from the template features. Normalized cross correlation (NCC) is determined between blocks of the image and each block of the template using the image processor. Peaks in the NCC are identified. A displacement vector is selected for a peak with highest NCC for each the block of the template. Ambiguous template features are identified in the image based on the displacement vector. Blocks are iteratively combined and NCC determined to remove the ambiguous template features.
摘要翻译：根据示例性系统和方法，使用图像处理器将模板分割成块。使用光学扫描仪扫描图像。图像与模板对齐。图像特征与模板块中的模板特征相匹配。识别图像特征与模板特征的差异的位移向量。使用图像处理器在图像的块和模板的每个块之间确定归一化互相关（NCC）。确定NCC中的峰。为模板的每个块选择具有最高NCC的峰的位移矢量。基于位移矢量在图像中识别不明确的模板特征。块被迭代组合，并且确定NCC以消除模糊模板特征。

8. 发明授权

US09275448B2 Flash/no-flash imaging for binarization 有权
标题翻译：用于二值化的闪光/无闪光成像
公开(公告)号：US09275448B2
公开(公告)日：2016-03-01
申请号：US14011028
申请日：2013-08-27
申请人： Xerox Corporation
发明人： Martin S. Maltz , Raja Bala , Phillip J. Emmett
IPC分类号： G06K9/36 , G06T5/50 , G06T5/00
CPC分类号： H04N1/00997 , G06T5/007 , G06T5/50 , G06T2207/20221 , G06T2207/30176 , H04N1/028
摘要： Provided are methods and systems for generating a binarized representation of a document using a mobile device configured to provide a Flashed and No-flashed image of the document. According to an exemplary method, the Flash and No-flash images are aligned and blended, where the resulting image includes the No-flash image where any hot spots are included in the Flash image. After blending, the blended image is binarized.
摘要翻译：提供了用于使用被配置为提供文档的闪烁和无闪光图像的移动设备来生成文档的二进制表示的方法和系统。根据示例性方法，闪光和无闪光图像被对准和混合，其中所得到的图像包括闪光图像，其中任何热点都包括在闪光图像中。混合后，将混合图像二值化。

9. 发明申请

US20150146262A1 EMBEDDING INFORMATION IN PAPER FORMS 有权
标题翻译：纸张嵌入信息
公开(公告)号：US20150146262A1
公开(公告)日：2015-05-28
申请号：US14091904
申请日：2013-11-27
申请人： Xerox Corporation
发明人： Zhigang Fan , Reiner Eschbach , Saurabh Prabhat , Raja Bala , Judith E. Stinehour , Martin S. Maltz
IPC分类号： H04N1/32 , G06T1/00
CPC分类号： H04N1/32352 , G06T1/0028 , G06T1/005 , G06T2201/0051 , G06T2201/0062 , H04N1/32133 , H04N1/3224 , H04N1/32261 , H04N1/32309 , H04N1/3232 , H04N2201/3233 , H04N2201/3269 , H04N2201/3271
摘要： This disclosure provides methods and systems of embedding and extracting information in a printed document. According to one exemplary embodiment, a method is provided wherein information is encoded by one or more partial or complete gaps in a line associated with a form, and the line gaps are patterned to provide N-bit codes.
摘要翻译：本公开提供了在打印文档中嵌入和提取信息的方法和系统。根据一个示例性实施例，提供了一种方法，其中信息由与形式相关联的线中的一个或多个部分或完全间隙编码，并且线间隙被图案化以提供N位代码。

10. 发明授权

US10176658B2 Magnetic watermarking of a printed substrate by metameric rendering 有权
公开(公告)号：US10176658B2
公开(公告)日：2019-01-08
申请号：US15873213
申请日：2018-01-17
申请人： Xerox Corporation
发明人： Reiner Eschbach , Martin S. Maltz , Raja Bala , Yonghui Zhao
IPC分类号： B32B3/10 , G07D7/04 , G07D7/005
摘要： A document may include a non-magnetic substrate, a first colorant mixture printed as a first image upon the substrate, the first colorant mixture including a magnetic ink, and a second colorant mixture printed as a second image upon the substrate in substantially close spatial proximity to the printed first colorant mixture. The second colorant mixture may consist essentially of one or more non-magnetic inks and exhibit properties of both low visual contrast and high magnetic contrast against the first colorant mixture, such that the resultant printed substrate does not reveal the first image to the human eye, but will reveal the first image to a magnetic image reader.

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