公开(公告)号：US11017158B2

公开(公告)日：2021-05-25

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: 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

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：US10417321B2

公开(公告)日：2019-09-17

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: G06T7/00 ,  G06F17/24 ,  G06F17/21 ,  G06T7/194 ,  G06T11/00 ,  G06F17/22 ,  G06K9/00 ,  G06K9/46 ,  G06K9/78 ,  G06T5/00 ,  G06F16/93 ,  G06F3/0484

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：US20180005040A1

公开(公告)日：2018-01-04

申请号：US15690104

申请日：2017-08-29

Applicant: DROPBOX, INC.

Inventor： Boris Babenko ,  Nils Peter Welinder

IPC: G06K9/00

CPC classification number: G06K9/00744

Abstract: Embodiments of the present invention analyze and score each image associated with a group to determine representative image or images for the group. Such analysis can include detecting objects shown in the images, determining the quality of the images, and/or contextually analyzing the images as a group. In some embodiments, each image in a group (e.g., an event) of images can be analyzed by one or more image analysis modules that calculate a score for the image based on a different image characteristic. A composite image score can then be calculated based on the various image characteristic scores to identify the image or images to be used as to represent the group.

公开(公告)号：US20170255761A1

公开(公告)日：2017-09-07

申请号：US15602552

申请日：2017-05-23

Applicant: Dropbox, Inc.

Inventor： Ilya Fushman ,  Nils Peter Welinder

IPC: G06F21/10 ,  H04L29/08

CPC classification number: G06F21/10 ,  G06F16/9558 ,  G06F17/2235 ,  G06F2221/0704 ,  G06F2221/2101 ,  H04L67/02 ,  H04L67/22 ,  H04W4/21

Abstract: Monitored shareable links to content items in an online content management service. In one aspect, based on determining that a first view metric associated with a shareable link to a content item is above a first activity threshold associated with the shareable link, a first action is taken on the shareable link. The first action can be allowing or denying requested access to the content item via the shareable link or sending a notification to a user that requested creation of the shareable link regarding user activity on the shareable link. Further, based on determining that a second view metric associated with the shareable link is above a second activity threshold associated with the shareable link, a second action is taken on the shareable link. The second action can be like the first action.

公开(公告)号：US20240330568A1

公开(公告)日：2024-10-03

申请号：US18744349

申请日：2024-06-14

Applicant: Dropbox, Inc.

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

IPC: G06F40/123 ,  G06F3/04842 ,  G06F3/12 ,  G06F16/93 ,  G06F40/103 ,  G06F40/106 ,  G06F40/166 ,  G06F40/169 ,  G06F40/197 ,  G06T5/70 ,  G06T5/90 ,  G06T7/194 ,  G06T11/00 ,  G06T11/60 ,  G06V10/10 ,  G06V10/24 ,  G06V10/30 ,  G06V10/44 ,  G06V20/40 ,  G06V30/40 ,  G06V30/413 ,  G06V30/414 ,  G06V30/418

CPC classification number: 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

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：US12014132B2

公开(公告)日：2024-06-18

申请号：US18295043

申请日：2023-04-03

Applicant: Dropbox, Inc.

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

IPC: G06T7/194 ,  G06F3/04842 ,  G06F3/12 ,  G06F16/93 ,  G06F40/103 ,  G06F40/106 ,  G06F40/123 ,  G06F40/166 ,  G06F40/169 ,  G06F40/197 ,  G06T5/90 ,  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 classification number: 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

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：USRE48194E1

公开(公告)日：2020-09-01

申请号：US16408830

申请日：2019-05-10

Applicant: Dropbox, Inc.

Inventor： Ilya Fushman ,  Nils Peter Welinder

IPC: H04L29/08 ,  G06F15/173 ,  G06Q30/02 ,  G06F17/30 ,  G06F16/954

Abstract: Shareable links can be created to share content items and information pertaining to activity on those shareable links can be monitored and stored in an online content management service. Based on this activity information, predetermined actions can be executed. These actions can include sending notifications regarding link activity, disabling shareable links, and/or updating sharing limitations related to the shareable links. Using the activity information, popular shared content items can be identified and recommendations for sharing unshared content items can be provided to the user. Additionally, advertisements can be tailored to the relative popularity of the shared content items.

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：US10200421B2

公开(公告)日：2019-02-05

申请号：US15207244

申请日：2016-07-11

Applicant: DROPBOX, INC.

Inventor： Nils Peter Welinder ,  Thomas Kleinpeter ,  Thomas Wright ,  Ramesh Balakrishnan ,  Tina Wen ,  Rajeev Nayak

IPC: G06F15/16 ,  H04L29/06 ,  H04L12/58 ,  G06F3/0481 ,  H04L29/08 ,  G06F9/54 ,  G06F11/20 ,  G06F3/0482 ,  G06F3/0484

Abstract: Systems and methods are provided for creating shared virtual spaces using a client device. For example, the disclosed systems receive a request from a user to share one or more digital content items with other users via a shared virtual space. The disclosed systems queue a request to send data to a content management system to create the shared virtual space. In some instances, the disclosed systems can determine that a connection between a user's client device and the content management system is below a threshold connectivity, and then simulate an online experience for the user despite the poor connection.