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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11620438 B1

PDFFull Text
Date of Patent:
Apr. 04, 2023

Filed:

May. 07, 2021

Live document detection in a captured video stream

Applicant:

Dropbox, Inc., San Francisco, CA (US);

Inventors:

Nils Peter Welinder, San Francisco, CA (US);

Peter N. Belhumeur, San Francisco, CA (US);

Ying Xiong, Sunnyvale, CA (US);

Jongmin Baek, San Jose, CA (US);

Simon Kozlov, San Francisco, CA (US);

Thomas Berg, San Francisco, CA (US);

David J. Kriegman, San Diego, CA (US);

Assignee:

DROPBOX, INC., San Francisco, CA (US);

Attorney:

Keller Preece

Primary Examiner:

Delomia L Gilliard

Int. Cl.
CPC ...
G06F 40/166 (2020.01); G06T 7/194 (2017.01); G06T 11/00 (2006.01); G06F 16/93 (2019.01); G06T 5/00 (2006.01); G06F 40/106 (2020.01); G06F 40/123 (2020.01); G06F 40/197 (2020.01); G06V 10/10 (2022.01); G06V 10/44 (2022.01); G06V 20/40 (2022.01); G06V 30/40 (2022.01); G06V 30/413 (2022.01); G06V 30/414 (2022.01); G06F 3/04842 (2022.01); G06T 11/60 (2006.01); G06F 3/12 (2006.01); G06F 40/103 (2020.01); G06F 40/169 (2020.01); G06V 10/30 (2022.01); G06V 10/24 (2022.01); G06V 30/418 (2022.01);
U.S. Cl.
CPC ...
G06F 40/166 (2020.01); G06F 16/93 (2019.01); G06F 40/106 (2020.01); G06F 40/123 (2020.01); G06F 40/197 (2020.01); G06T 5/007 (2013.01); G06T 7/194 (2017.01); G06T 11/001 (2013.01); G06V 10/10 (2022.01); G06V 10/44 (2022.01); G06V 20/46 (2022.01); G06V 30/40 (2022.01); G06V 30/413 (2022.01); G06V 30/414 (2022.01); G06F 3/04842 (2013.01); G06F 3/126 (2013.01); G06F 40/103 (2020.01); G06F 40/169 (2020.01); G06T 5/002 (2013.01); G06T 11/60 (2013.01); G06T 2207/20056 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30176 (2013.01); G06T 2210/22 (2013.01); G06V 10/242 (2022.01); G06V 10/30 (2022.01); G06V 30/418 (2022.01);
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.

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