公开(公告)号：US10915783B1

公开(公告)日：2021-02-09

申请号：US16220461

申请日：2018-12-14

Applicant: Amazon Technologies, Inc.

Inventor： Samuel Nathan Hallman ,  Petko Tsonev ,  Michael Francis O'Malley ,  Jayakrishnan Eledath ,  Jue Wang ,  Tian Lan

IPC: G06K9/62 ,  G06K9/00 ,  G06N3/08 ,  G06T5/50

Abstract: An imaging device may capture images of a scene, where the scene includes retroreflective materials. Where visual images and depth images are captured from a scene, and the depth images have ratios of supersaturated pixels that are less than a predetermined threshold, a location map of the scene is generated or updated based on the depth images. Where the ratios are greater than the predetermined threshold, the location map of the scene is generated or updated based on the visual images. Additionally, where each of a plurality of imaging devices detect concentrations of supersaturated pixels beyond a predetermined threshold or limit within their respective fields of view, an actor present on the scene may be determined to be wearing retroreflective material, or otherwise designated as a source of the supersaturation, and tracked with the scene based on coverage areas that are determined to have excessive ratios of supersaturated pixels.

公开(公告)号：US11386306B1

公开(公告)日：2022-07-12

申请号：US16219870

申请日：2018-12-13

Applicant: Amazon Technologies, Inc.

Inventor： Behjat Siddiquie ,  Tian Lan ,  Jayakrishnan Eledath ,  Hoi Cheung Pang

IPC: G06K9/62 ,  G06N20/00 ,  G06K9/00 ,  G06V40/10

Abstract: As agents move about a materials handling facility, tracklets representative of the position of each agent are maintained along with a confidence score indicating a confidence that the position of the agent is known. If the confidence score falls below a threshold level, image data of the agent associated with the low confidence score is obtained and processed to generate one or more embedding vectors representative of the agent at a current position. Those embedding vectors are then compared with embedding vectors of other candidate agents to determine a set of embedding vectors having a highest similarity. The candidate agent represented by the set of embedding vectors having the highest similarity score is determined to be the agent and the position of that candidate agent is updated to the current position, thereby re-identifying the agent.

公开(公告)号：US11657595B1

公开(公告)日：2023-05-23

申请号：US17170722

申请日：2021-02-08

Applicant: Amazon Technologies, Inc.

Inventor： Samuel Nathan Hallman ,  Petko Tsonev ,  Michael Francis O'Malley ,  Jayakrishnan Eledath ,  Jue Wang ,  Tian Lan

IPC: G06V10/75 ,  G06T5/50 ,  G06N3/08 ,  G06V20/64 ,  G06V40/10

CPC classification number: G06V10/751 ,  G06N3/08 ,  G06T5/50 ,  G06V20/647 ,  G06V40/10 ,  G06T2207/10028

Abstract: An imaging device may capture images of a scene, where the scene includes retroreflective materials. Where visual images and depth images are captured from a scene, and the depth images have ratios of supersaturated pixels that are less than a predetermined threshold, a location map of the scene is generated or updated based on the depth images. Where the ratios are greater than the predetermined threshold, the location map of the scene is generated or updated based on the visual images. Additionally, where each of a plurality of imaging devices detect concentrations of supersaturated pixels beyond a predetermined threshold or limit within their respective fields of view, an actor present on the scene may be determined to be wearing retroreflective material, or otherwise designated as a source of the supersaturation, and tracked with the scene based on coverage areas that are determined to have excessive ratios of supersaturated pixels.

公开(公告)号：US11907339B1

公开(公告)日：2024-02-20

申请号：US17811450

申请日：2022-07-08

Applicant: Amazon Technologies, Inc.

Inventor： Behjat Siddiquie ,  Tian Lan ,  Jayakrishnan Eledath ,  Hoi Cheung Pang

IPC: G06F18/2411 ,  G06V40/10 ,  G06N20/00 ,  G06F18/214 ,  G06F18/2413

CPC classification number: G06F18/2411 ,  G06F18/214 ,  G06F18/24147 ,  G06N20/00 ,  G06V40/103

Abstract: As agents move about a materials handling facility, tracklets representative of the position of each agent are maintained along with a confidence score indicating a confidence that the position of the agent is known. If the confidence score falls below a threshold level, image data of the agent associated with the low confidence score is obtained and processed to generate one or more embedding vectors representative of the agent at a current position. Those embedding vectors are then compared with embedding vectors of other candidate agents to determine a set of embedding vectors having a highest similarity. The candidate agent represented by the set of embedding vectors having the highest similarity score is determined to be the agent and the position of that candidate agent is updated to the current position, thereby re-identifying the agent.