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：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.