公开(公告)号：US10999524B1

公开(公告)日：2021-05-04

申请号：US16020272

申请日：2018-06-27

Applicant: Amazon Technologies, Inc.

Inventor： Markus Stefan Duelli ,  Cory Keitz ,  Lorenzo Sorgi ,  Christopher Samuel Zakian

IPC: H04N5/235 ,  G01S7/486 ,  G01S17/89 ,  G06T7/521 ,  G01S17/894 ,  G01S7/497 ,  H04N13/271

Abstract: A time-of-flight camera may be used to generate depth images of a scene, where the scene includes retroreflective materials. The time-of-flight camera may capture first sensor data by illuminating the scene at a first energy level, and by exposing a sensor for a first duration. If portions of the sensor are saturated by light reflected from retroreflective materials, corrupted pixels are detected within the first sensor data. A second set of sensor data may be captured by illuminating the scene at a second energy level, or by exposing the sensor for a second duration. The corrupted pixels may be identified and masked from the first sensor data, which may be blended with corresponding portions of the second sensor data to generate a depth image.