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公开(公告)号：US12236185B2
公开(公告)日：2025-02-25
申请号：US17689246
申请日：2022-03-08
Applicant: XEROX CORPORATION
IPC: G06F40/169 , H04N1/32
Abstract: The present disclosure discloses methods and systems for adding one or more annotations from a printed version of a document to a digital version of the document. The methods and systems include receiving the printed document with one or more annotations, which represent review comments of a reviewer. The printed document including one or more annotations is scanned to obtain a scanned document. Thereafter, the scanned document is compared with the original digital version of the document to identify the one or more annotations. The identified one or more annotations are then extracted and added to the digital version of the document to obtain a new digital version, which can be used for changes by the user or any other user.
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公开(公告)号：US20240020997A1
公开(公告)日：2024-01-18
申请号：US17866864
申请日：2022-07-18
Applicant: XEROX CORPORATION
CPC classification number: G06V30/18105 , G06V30/12 , G06T7/11 , G06T2207/10008
Abstract: The present disclosure discloses methods and systems for adjusting text colors in scanned documents. The method includes receiving a document for scanning from a user. Then, the document is scanned to generate scanned data. The scanned data is segmented into an image layer and one or more text layers, wherein the one or more text layers include textual content. Thereafter, the text color of the textual content in each text layer is identified. Then, the identified text color of the textual content in the text layer is compared with one or more pre-defined colors. Based on comparison, the text color of the textual content in each text layer is adjusted to match with the one or more pre-defined colors thereby generates a modified text layer. Finally, the modified text layer and the image layer are combined to create a final scanned document.
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公开(公告)号：US11715314B2
公开(公告)日：2023-08-01
申请号：US16922283
申请日：2020-07-07
Applicant: Xerox Corporation
Inventor： Xing Li , Dhevendra Alagan Palanivel , Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai
IPC: G06V30/413 , G06V10/50 , G06V10/98
CPC classification number: G06V30/413 , G06V10/50 , G06V10/98
Abstract: A computer-implemented method and system for processing a document page is based on text and non-text detections in an image path. An object block is generated for each image content identified within an input page. the blocks are extracted from the input document for downstream processing. Then, the object blocks are classified based on whether the content is text or non-text. The extracted non-text objects—which are specified by their bounding boxes—are processed separately from the rest of the content. The processing is performed on the text content blocks in parallel. However, when error diffusion is employed, the error diffusion is performed sequentially on the non-text content blocks to avoid stitching artifacts between individually error diffused patches in non-text areas.
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公开(公告)号：US20210110586A1
公开(公告)日：2021-04-15
申请号：US16599147
申请日：2019-10-11
Applicant: XEROX CORPORATION
Inventor： Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai
Abstract: Methods and systems for generating a mixed raster content (MRC) format file are disclosed. The method includes receiving an input document. The input document is segmented into an image layer and a text layer with a color mask information. A determination is made whether a text group in the text layer has a color different than the color mask information. Upon an affirmative determination, an ascertainment is made whether the color mask is above a threshold value. An average of the color mask is calculated and based on the calculation, a new color is applied to the text group to modify the text layer. Then, the modified text layer is compressed using a first compression scheme, the image layer is compressed using a second compression scheme, the compressed the modified text layer and the image layer are integrated to generate an image data in an MRC file format.
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公开(公告)号：US09384391B2
公开(公告)日：2016-07-05
申请号：US14505517
申请日：2014-10-03
Applicant: Xerox Corporation
Inventor： Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai , Vignesh Doss , Sudhagar Subbaian , Xing Li
CPC classification number: G06K9/00456 , G06F17/212 , G06K9/00422 , G06K9/2063
Abstract: Methods and systems for classifying a region of interest in an electronic document. A first region from the electronic document is extracted. The first region includes at least the region of interest. A first projection profile of pixels is determined in the region of interest. The first projection profile of pixels is indicative of a presence of a content in the region of interest. The region of interest is classified in at least one category based on a comparison of the first projection profile with a predetermined projection profile associated with the region of interest.
Abstract translation: 在电子文件中分类感兴趣区域的方法和系统。 提取电子文档的第一区域。 第一区域至少包括感兴趣的区域。 在感兴趣的区域中确定像素的第一投影轮廓。 像素的第一投影轮廓指示感兴趣区域中的内容的存在。 基于第一投影轮廓与与感兴趣区域相关联的预定投影轮廓的比较，感兴趣区域被分类为至少一个类别。
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230289515A1
公开(公告)日：2023-09-14
申请号：US17689246
申请日：2022-03-08
Applicant: XEROX CORPORATION
IPC: G06F40/169 , H04N1/32
CPC classification number: G06F40/169 , H04N1/32144
Abstract: The present disclosure discloses methods and systems for adding one or more annotations from a printed version of a document to a digital version of the document. The methods and systems include receiving the printed document with one or more annotations, which represent review comments of a reviewer. The printed document including one or more annotations is scanned to obtain a scanned document. Thereafter, the scanned document is compared with the original digital version of the document to identify the one or more annotations. The identified one or more annotations are then extracted and added to the digital version of the document to obtain a new digital version, which can be used for changes by the user or any other user.
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公开(公告)号：US11652950B1
公开(公告)日：2023-05-16
申请号：US17854054
申请日：2022-06-30
Applicant: XEROX CORPORATION
Inventor： Packiya Lakshmi Balusamy , Vignesh Doss , Rajasekar Kanagasabai , Sainarayanan Gopalakrishnan
CPC classification number: H04N1/6027 , G06K15/188 , G06K15/1882 , H04N1/0035 , H04N1/6019 , H04N1/6077
Abstract: The disclosure discloses methods and systems for handling drifting of colors in printing. The method includes receiving a document including the image for printing, the image includes one or more gray and non-gray portions. An input from a user to selectively adjust the color of the gray portions of the image is received. The gray portions of the image are identified. Then, color values associated with the identified gray portions of the image are determined. Based on the user input, the determined color values associated with the gray portions of the image are selectively adjusted, without affecting non-gray color portions of the image to generate an updated image. The updated image is printed and the printed image includes adjusted color for the gray portions of the image such that gray color in the printed image is consistent with gray color of the image in the document.
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公开(公告)号：US20230030524A1
公开(公告)日：2023-02-02
申请号：US17391253
申请日：2021-08-02
Applicant: XEROX CORPORATION
Abstract: The present disclosure discloses methods and systems for detecting an IR security mark in a document based on known color information and halftone frequency information. The method includes receiving a document from a user, including an IR security mark. Then, location information, color information and halftone frequency information are received from the user. The document is scanned. Based on the color information and the location information, the IR security mark is extracted from the scanned document. After this, halftone frequency information of the extracted IR security mark is verified. Based on the verification, text in the extracted IR security mark is identified and is then compared with one or more pre-stored IR security marks to ascertain whether the IR security mark in the document is an authentic security mark.
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公开(公告)号：US20220012483A1
公开(公告)日：2022-01-13
申请号：US16922283
申请日：2020-07-07
Applicant: Xerox Corporation
Inventor： Xing Li , Dhevendra Alagan Palanivel , Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai
Abstract: A computer-implemented method and system for processing a document page is based on text and non-text detections in an image path. An object block is generated for each image content identified within an input page. the blocks are extracted from the input document for downstream processing. Then, the object blocks are classified based on whether the content is text or non-text. The extracted non-text objects—which are specified by their bounding boxes—are processed separately from the rest of the content. The processing is performed on the text content blocks in parallel. However, when error diffusion is employed, the error diffusion is performed sequentially on the non-text content blocks to avoid stitching artifacts between individually error diffused patches in non-text areas.
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公开(公告)号：US20170208194A1
公开(公告)日：2017-07-20
申请号：US15001295
申请日：2016-01-20
Applicant: XEROX CORPORATION
Inventor： Sainarayanan Gopalakrishnan , Xing Li , Rajasekar Kanagasabai , Clara Cuciurean-Zapan
CPC classification number: H04N1/00461 , G06F3/1206 , G06F3/1208 , G06F3/1242 , G06F3/1245 , G06F3/1247 , G06F3/1256 , G06F3/1282 , G06K9/00456 , G06K9/34 , G06K15/1801 , G06K15/1815 , G06K15/1822 , G06K15/1849 , G06K15/1878 , G06K15/189 , G06T7/11 , G06T7/194 , G06T11/60 , G06T2207/10008 , H04N1/00413 , H04N1/0044 , H04N1/0405 , H04N1/40062 , H04N1/60 , H04N1/648
Abstract: Methods and devices process an electronic image of an item that has a background color and line features of a second color distinct from the background color. An electronic image and a menu option are displayed to allow the user to define at least one area of the electronic image as a distinctive color region. The electronic image is separated into different planes, and line features within the distinctive color region are removed from a second mask plane (second color) and added to a third mask plane (third color). The first plane, second mask plane, and third mask plane, are combined into an electronic file, and automatically stored.
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