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1. 发明申请

US20210240757A1 Automatic Detection and Transfer of Relevant Image Data to Content Collections 有权
公开(公告)号：US20210240757A1
公开(公告)日：2021-08-05
申请号：US17170697
申请日：2021-02-08
申请人： EVERNOTE CORPORATION
发明人： Dylan Marriott , Daniel Nicolae , Ruben Bakker , Alexander Pashintsev , Zdzislaw Pawel Losvik , Eugene Livshitz , Vitaly Glazkov , Boris Gorbatov , Ilya Buryak
IPC分类号： G06F16/51 , G06F16/583 , G06F16/58 , G06F16/55
摘要： This application is directed to a method for automatically identifying and transferring relevant image data. The method includes obtaining a plurality of content items from a personal content collection and determining attributes based on the plurality of content items. The method includes generating a plurality of relevance rules. The method further includes obtaining unclassified content items and determining for a first unclassified content item a plurality of aggregate relevance scores using the plurality of relevance rules. The method include determining whether a first aggregate relevance score and/or a second aggregate relevance score satisfy threshold score. The method includes, in accordance with a determination that the first aggregate relevance score and the second aggregate relevance score do not satisfy the threshold score, forgoing determining the attributes corresponding to the first unclassified content item, and storing the first unclassified content item in a candidate list of the personal content collection.

2. 发明申请

US20190089865A1 Adaptive Enhancement of Scanned Document Pages 审中-公开
公开(公告)号：US20190089865A1
公开(公告)日：2019-03-21
申请号：US16046888
申请日：2018-07-26
申请人： EVERNOTE CORPORATION
发明人： Alexander Pashintsev , Boris Gorbatov , Leonid Kitainik
IPC分类号： H04N1/387 , H04N1/04 , H04N1/00
摘要： Enhancing image quality of an initial full image of a document page includes obtaining the initial full image of a document page, determining that at least a subset of text in the initial full image does not meet a predefined readability criterion, identifying at least one of a plurality of page fragments in the initial full image of the document page for enhancement, and sending an instruction to a mobile device to provide a photograph of the at least one of the page fragments. The photograph provides a separate fragment image for the at least one of the page fragments. The separate fragment image is then obtained from the mobile device and merged into the initial full image to provide an enhanced full image.

3. 发明授权

US10136011B2 Automatic scanning of document stack with a camera 有权
公开(公告)号：US10136011B2
公开(公告)日：2018-11-20
申请号：US15438625
申请日：2017-02-21
申请人： EVERNOTE CORPORATION
发明人： Alexander Pashintsev , Boris Gorbatov , Eugene Livshitz
IPC分类号： H04N1/04 , H04N1/00
摘要： Automatically scanning multiple document sheets with a camera includes receiving a video stream while the camera is pointed at the multiple document sheets, detecting presence of a first top page of the multiple document sheets based on the video stream, taking a still photograph of the first top page in response to detecting presence of the first top page, detecting presence of a second top page based on the video stream by confirming that the second top page is different from the first top page and by waiting a predetermined amount of time for an image of the second top page to stabilize, and taking a still photograph of the second top page in response to detecting presence of the second top page. Detecting the pages may include determining that the camera is pointing at the stack of documents and a detected page is not obstructed.

4. 发明授权

US09578195B1 Automatic scanning of document stack with a camera 有权
标题翻译：用相机自动扫描文件堆叠
公开(公告)号：US09578195B1
公开(公告)日：2017-02-21
申请号：US15002444
申请日：2016-01-21
申请人： Evernote Corporation
发明人： Alexander Pashintsev , Boris Gorbatov , Eugene Livshitz
IPC分类号： H04N1/04 , H04N1/00
CPC分类号： H04N1/00782 , H04N1/00251 , H04N1/00689 , H04N2201/0084 , H04N2201/0096
摘要： Automatically scanning multiple document sheets with a camera includes receiving a video stream while the camera is pointed at the multiple document sheets, detecting presence of a first top page of the multiple document sheets based on the video stream, taking a still photograph of the first top page in response to detecting presence of the first top page, detecting presence of a second top page based on the video stream by confirming that the second top page is different from the first top page and by waiting a predetermined amount of time for an image of the second top page to stabilize, and taking a still photograph of the second top page in response to detecting presence of the second top page. Detecting the pages may include determining that the camera is pointing at the stack of documents and a detected page is not obstructed.
摘要翻译：使用相机自动扫描多张文档纸张包括：当相机指向多张原稿时接收视频流，基于视频流检测多张原稿的第一首页的存在，拍摄第一张顶部的静态照片响应于检测到第一首页的存在，通过确认第二首页不同于第一首页，基于视频流来检测第二首页的存在，并且通过等待预定的时间量响应于检测到第二首页的存在，稳定第二首页并且拍摄第二首页的静态照片。检测页面可以包括确定相机正在指向文档堆栈，并且检测到的页面不被阻挡。

5. 发明申请

US20220270386A1 FAST IDENTIFICATION OF TEXT INTENSIVE PAGES FROM PHOTOGRAPHS 有权
公开(公告)号：US20220270386A1
公开(公告)日：2022-08-25
申请号：US17542856
申请日：2021-12-06
申请人： EVERNOTE CORPORATION
发明人： Alexander Pashintsev , Boris Gorbatov , Eugene Livshitz , Vitaly Glazkov
IPC分类号： G06V30/413 , G06T7/60 , G06T3/40 , G06V10/42 , G06V30/414
摘要： Methods and systems for training a neural network to distinguish between text documents and image documents are described. A corpus of text and image documents is obtained. A page of a text document is scanned by shifting a text window to a plurality of locations. In accordance with a determination that the text in the window at a respective location meets text line criteria, the text in the window is stored as a respective text snippet. A plurality of image windows are superimposed over at least one page of an image document. In accordance with a determination that the content of a respective image window meets image criteria, content of the image window is stored as a respective image snippet. The respective text snippet and the respective image snippet are provided to a classifier.

6. 发明申请

US20220269396A1 DYNAMIC TARGETING OF PREFERRED OBJECTS IN VIDEO STREAM OF SMARTPHONE CAMERA 有权
公开(公告)号：US20220269396A1
公开(公告)日：2022-08-25
申请号：US17741303
申请日：2022-05-10
申请人： Evernote Corporation
发明人： Alexander Pashintsev , Boris Gorbatov , Eugene Livshitz , Vitaly Glazkov
IPC分类号： G06F3/04842 , G06F3/01 , G06F3/04883 , H04N1/195
摘要： Selecting objects in a video stream of a smart phone includes detecting quiescence of frame content in the video stream, detecting objects in a scene corresponding to the frame content, presenting at least one of the objects to a user of the smart phone, and selecting at least one of the objects in a group of objects in response to input by the user. Detecting quiescence of frame content in the video stream may include using motion sensors in the smart phone to determine an amount of movement of the smart phone. Detecting quiescence of frame content in the video stream may include detecting changes in view angles and distances of the smart phone with respect to the scene. Detecting objects in a scene may use heuristics, custom user preferences, and/or specifics of scene layout. At least one of the objects may be a person or a document.

7. 发明授权

US10587773B2 Adaptive enhancement of scanned document pages 有权
公开(公告)号：US10587773B2
公开(公告)日：2020-03-10
申请号：US16046888
申请日：2018-07-26
申请人： EVERNOTE CORPORATION
发明人： Alexander Pashintsev , Boris Gorbatov , Leonid Kitainik
IPC分类号： H04N1/00 , H04N1/387 , H04N1/04
摘要： Enhancing image quality of an initial full image of a document page includes obtaining the initial full image of a document page, determining that at least a subset of text in the initial full image does not meet a predefined readability criterion, identifying at least one of a plurality of page fragments in the initial full image of the document page for enhancement, and sending an instruction to a mobile device to provide a photograph of the at least one of the page fragments. The photograph provides a separate fragment image for the at least one of the page fragments. The separate fragment image is then obtained from the mobile device and merged into the initial full image to provide an enhanced full image.

8. 发明申请

US20190261024A1 COORDINATED PIECEWISE BEZIER VECTORIZATION 审中-公开
公开(公告)号：US20190261024A1
公开(公告)日：2019-08-22
申请号：US16279856
申请日：2019-02-19
申请人： Evernote Corporation
发明人： Eugene Livshitz , Ilia Buriak , Natalia Galaktionova , Alexander Pashintsev , Boris Gorbatov
IPC分类号： H04N19/94 , G06T3/40 , G06T7/60 , G06T5/00 , G06T5/20
摘要： This application is directed to vectoring a raster image in which an electronic device detects a contour of a component in the raster image, builds tangent vectors for each point of the contour and identifies a plurality of segmentation points on the contour. One or more points of sharp angle are identified on the contour in accordance with a determination that each point of sharp angle corresponds to two distinct tangent vectors and that an angle between the two distinct tangent vectors falls below a predefined threshold. A respective one of the segmentation points is positioned at each identified point of shape angle. The electronic device approximates a piecewise smooth fitting curve (e.g., a piecewise Bezier curve) having two or more fitting segments to connect the plurality of segmentation points on the contour. The piecewise smooth fitting curve is thereby provided to vectorize the raster image.

9. 发明授权

US10115031B1 Detecting rectangular page and content boundaries from smartphone video stream 有权
公开(公告)号：US10115031B1
公开(公告)日：2018-10-30
申请号：US15051936
申请日：2016-02-24
申请人： Evernote Corporation
发明人： Alexander Pashintsev , Boris Gorbatov , Eugene Livshitz
IPC分类号： G06K9/00 , G06K9/32 , G06K9/46 , G06K9/22
摘要： Identifying a page with content in a video frame that is part of a video stream of successive video frames includes receiving the video stream, detecting edge segments in the video frame, where each of the edge segments is a candidate for being at least a part of an edge of the page, filtering the edge segments to discard a first subset of the edge segments based on curvature and based on angles between the edge segments and standard axes of the video frame, and identifying the page with content within a portion of a second subset of the edge segments that remain after filtering in response to the portion having geometric closeness to a rectangle. Edge segments having angles that significantly deviate from coordinate angles of the video frame and edge segments with a relatively high curvature may be discarded. A Canny edge detection algorithm may be used.

10. 发明申请

US20180025003A1 Automatic Detection and Transfer of Relevant Image Data to Content Collections 审中-公开
公开(公告)号：US20180025003A1
公开(公告)日：2018-01-25
申请号：US15658361
申请日：2017-07-24
申请人： EVERNOTE CORPORATION
发明人： Dylan Marriott , Daniel Nicolae , Ruben Bakker , Alexander Pashintsev , Zdzislaw Pawel Losvik , Eugene Livshitz , Vitaly Glazkov , Boris Gorbatov , Ilya Buryak
IPC分类号： G06F17/30
CPC分类号： G06F16/51 , G06F16/5846 , G06F16/5866
摘要： This application is directed to a method for automatically identifying and transferring relevant image data implemented at a server with a processor and memory including one or programs executable by the processor. The server obtains content items from a personal content collection of a user, analyzes the content items to identify attributes associated with the images, generates rule sets based on the identified attributes, applies the generated rule sets to a plurality of unclassified images, identifies a first set of one or more of the unclassified images, associates each image of the first set with the content items and stores the first set in the personal content collection. A second set of unclassified images is placed in a candidate list to be periodically, without user intervention, monitored and updated for storing in the personal content collection. The generated rule sets are updated after images are stored in the content collection.

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