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.

Date of Patent:
May. 04, 2021

Filed:

Jun. 27, 2018
Applicant:

Amazon Technologies, Inc., Seattle, WA (US);

Inventors:

Markus Stefan Duelli, Seattle, WA (US);

Cory Keitz, Seattle, WA (US);

Lorenzo Sorgi, Seattle, WA (US);

Christopher Samuel Zakian, Brier, WA (US);

Assignee:

Amazon Technologies, Inc., Seattle, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); G01S 7/486 (2020.01); G01S 17/89 (2020.01); G06T 7/521 (2017.01); G01S 17/894 (2020.01); G01S 7/497 (2006.01); H04N 13/271 (2018.01);
U.S. Cl.
CPC ...
H04N 5/2355 (2013.01); G01S 7/497 (2013.01); G01S 17/894 (2020.01); G06T 7/521 (2017.01); H04N 5/2352 (2013.01); H04N 5/2354 (2013.01); G06T 2207/10152 (2013.01); G06T 2207/20208 (2013.01); H04N 13/271 (2018.05);
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.


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