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公开(公告)号：US11620438B2
公开(公告)日：2023-04-04
申请号：US17315027
申请日：2021-05-07
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06V10/10 , G06V10/44 , G06V20/40 , G06V30/40 , G06V30/413 , G06V30/414 , G06F3/04842 , G06T11/60 , G06F3/12 , G06F40/103 , G06F40/169 , G06V10/30 , G06V10/24 , G06V30/418
摘要： The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
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公开(公告)号：US11017159B2
公开(公告)日：2021-05-25
申请号：US16830047
申请日：2020-03-25
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78 , G06F3/0484 , G06K9/40 , G06K9/32 , G06T11/60 , G06F3/12 , G06F40/103 , G06F40/169 , G06F17/00
摘要： The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
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公开(公告)号：US11017158B2
公开(公告)日：2021-05-25
申请号：US16457423
申请日：2019-06-28
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06T7/00 , G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78 , G06F3/0484 , G06K9/40 , G06K9/32 , G06T11/60 , G06F3/12 , G06F40/103 , G06F40/169
摘要： The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
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公开(公告)号：US10417321B2
公开(公告)日：2019-09-17
申请号：US15658291
申请日：2017-07-24
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06T7/00 , G06F17/24 , G06F17/21 , G06T7/194 , G06T11/00 , G06F17/22 , G06K9/00 , G06K9/46 , G06K9/78 , G06T5/00 , G06F16/93 , G06F3/0484
摘要： The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
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公开(公告)号：US20210271807A1
公开(公告)日：2021-09-02
申请号：US17323838
申请日：2021-05-18
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78
摘要： The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
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公开(公告)号：US20210264098A1
公开(公告)日：2021-08-26
申请号：US17315027
申请日：2021-05-07
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78
摘要： The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
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公开(公告)号：US11003841B2
公开(公告)日：2021-05-11
申请号：US16830077
申请日：2020-03-25
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78 , G06F3/0484 , G06K9/40 , G06K9/32 , G06T11/60 , G06F3/12 , G06F40/103 , G06F40/169 , G06F17/00
摘要： The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
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公开(公告)号：US20200226319A1
公开(公告)日：2020-07-16
申请号：US16830077
申请日：2020-03-25
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
IPC分类号： G06F40/166 , G06T7/194 , G06T11/00 , G06K9/00 , G06F16/93 , G06T5/00 , G06F40/106 , G06F40/123 , G06F40/197 , G06K9/46 , G06K9/78
摘要： The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
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公开(公告)号：US20180025251A1
公开(公告)日：2018-01-25
申请号：US15658291
申请日：2017-07-24
申请人： DROPBOX, INC.
发明人： Nils Peter Welinder , Peter N. Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J. Kriegman
CPC分类号： G06F17/24 , G06F3/04842 , G06F16/93 , G06F17/212 , G06F17/2205 , G06F17/2288 , G06K9/00442 , G06K9/00456 , G06K9/00463 , G06K9/00744 , G06K9/3208 , G06K9/40 , G06K9/4604 , G06K9/78 , G06T5/002 , G06T5/007 , G06T7/194 , G06T11/001 , G06T2207/20056 , G06T2207/20081 , G06T2207/20084 , G06T2207/30176 , G06T2210/22
摘要： The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
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公开(公告)号：US12039252B2
公开(公告)日：2024-07-16
申请号：US18295049
申请日：2023-04-03
申请人： Dropbox, Inc.
发明人： Nils Peter Welinder , Peter N Belhumeur , Ying Xiong , Jongmin Baek , Simon Kozlov , Thomas Berg , David J Kriegman
IPC分类号： G06F40/123 , G06F3/04842 , G06F3/12 , G06F16/93 , G06F40/103 , G06F40/106 , G06F40/166 , G06F40/169 , G06F40/197 , G06T5/90 , G06T7/194 , G06T11/00 , G06T11/60 , G06V10/10 , G06V10/30 , G06V10/44 , G06V20/40 , G06V30/40 , G06V30/413 , G06V30/414 , G06T5/70 , G06V10/24 , G06V30/418
CPC分类号： G06F40/123 , G06F16/93 , G06F40/106 , G06F40/166 , G06F40/197 , G06T5/90 , G06T7/194 , G06T11/001 , G06V10/10 , G06V10/44 , G06V20/46 , G06V30/40 , G06V30/413 , G06V30/414 , G06F3/04842 , G06F3/126 , G06F40/103 , G06F40/169 , G06T5/70 , G06T11/60 , G06T2207/20056 , G06T2207/20081 , G06T2207/20084 , G06T2207/30176 , G06T2210/22 , G06V10/242 , G06V10/30 , G06V30/418
摘要： The present disclosure is directed toward systems and methods that efficiently and effectively generate an enhanced document image of a displayed document in an image frame captured from a live image feed. For example, systems and methods described herein apply a document enhancement process to a displayed document in an image frame that result in an enhanced document image that is cropped, rectified, un-shadowed, and with dark text against a mostly white background. Additionally, systems and method described herein determine whether a stored digital content item includes a displayed document. In response to determining that a stored digital content item does include a displayed document, systems and methods described herein generate an enhanced document image of a displayed document included in the stored digital content item.
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