公开(公告)号：US20200233999A1

公开(公告)日：2020-07-23

申请号：US16830047

申请日：2020-03-25

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F40/166 ,  G06T7/194 ,  G06T11/00 ,  G06K9/00 ,  G06F16/93 ,  G06T5/00 ,  G06F40/106 ,  G06F40/123 ,  G06F40/197 ,  G06K9/46 ,  G06K9/78

Abstract: 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.

公开(公告)号：US20190325013A1

公开(公告)日：2019-10-24

申请号：US16457423

申请日：2019-06-28

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F17/24 ,  G06F16/93 ,  G06K9/00 ,  G06F17/22 ,  G06F17/21 ,  G06T11/00 ,  G06T7/194 ,  G06K9/78 ,  G06K9/46 ,  G06T5/00

Abstract: 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.

公开(公告)号：US20180024974A1

公开(公告)日：2018-01-25

申请号：US15658289

申请日：2017-07-24

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F17/24 ,  G06K9/00 ,  G06T11/00 ,  G06F17/22 ,  G06F17/21 ,  G06T7/194

Abstract: 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.

公开(公告)号：US20210271807A1

公开(公告)日：2021-09-02

申请号：US17323838

申请日：2021-05-18

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F40/166 ,  G06T7/194 ,  G06T11/00 ,  G06K9/00 ,  G06F16/93 ,  G06T5/00 ,  G06F40/106 ,  G06F40/123 ,  G06F40/197 ,  G06K9/46 ,  G06K9/78

Abstract: 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.

公开(公告)号：US20210264098A1

公开(公告)日：2021-08-26

申请号：US17315027

申请日：2021-05-07

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F40/166 ,  G06T7/194 ,  G06T11/00 ,  G06K9/00 ,  G06F16/93 ,  G06T5/00 ,  G06F40/106 ,  G06F40/123 ,  G06F40/197 ,  G06K9/46 ,  G06K9/78

Abstract: 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.

公开(公告)号：US11003841B2

公开(公告)日：2021-05-11

申请号：US16830077

申请日：2020-03-25

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: 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

Abstract: 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.

公开(公告)号：US20200226319A1

公开(公告)日：2020-07-16

申请号：US16830077

申请日：2020-03-25

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06F40/166 ,  G06T7/194 ,  G06T11/00 ,  G06K9/00 ,  G06F16/93 ,  G06T5/00 ,  G06F40/106 ,  G06F40/123 ,  G06F40/197 ,  G06K9/46 ,  G06K9/78

Abstract: 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.

公开(公告)号：US20180025251A1

公开(公告)日：2018-01-25

申请号：US15658291

申请日：2017-07-24

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Peter N. Belhumeur ,  Ying Xiong ,  Jongmin Baek ,  Simon Kozlov ,  Thomas Berg ,  David J. Kriegman

IPC: G06K9/46 ,  G06K9/78 ,  G06K9/00

CPC classification number: 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

Abstract: 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.