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.
Patent No.:
Date of Patent:
Dec. 28, 2021
Filed:
Oct. 15, 2018
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventors:
Charles Mathy, Arlington, MA (US);
Nicolas Le Dortz, Cambridge, MA (US);
Richard Haltmaier, Andover, MA (US);
Assignee:
ANALOG DEVICES, INC., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); G01S 7/4865 (2020.01); H04N 13/254 (2018.01); G01S 17/894 (2020.01); G06T 7/13 (2017.01); H04N 13/128 (2018.01); H04N 13/271 (2018.01); G01S 17/10 (2020.01); H04N 5/232 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4866 (2013.01); G01S 17/10 (2013.01); G01S 17/894 (2020.01); G06T 7/13 (2017.01); H04N 5/23241 (2013.01); H04N 13/128 (2018.05); H04N 13/254 (2018.05); H04N 13/271 (2018.05); G06T 2207/10028 (2013.01); H04N 5/2256 (2013.01);
Abstract
Time of Flight (ToF) depth image processing methods. Depth edge preserving filters are disclosed with superior performance to standard edge preserving filters applied to depth maps. In particular, depth variance is estimated and used to filter while preserving depth edges. In doing so, filter strength is calculated which can be used as an edge detector. A confidence map is generated with low confidence at pixels straddling a depth edge, and which reflects the reliability of the depth measurement at each pixel.