	US 11,722,652 B2
	Method and system for multi-wavelength depth encoding for three- dimensional range geometry compression
Song Zhang, West Lafayette, IN (US); and Tyler Bell, Lafayette, IN (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Jun. 6, 2021, as Appl. No. 17/340,081.
Application 17/340,081 is a continuation of application No. 16/826,573, filed on Mar. 23, 2020, granted, now 11,050,995.
Application 16/826,573 is a continuation of application No. 15/367,221, filed on Dec. 2, 2016, granted, now 10,602,118.
Claims priority of provisional application 62/261,932, filed on Dec. 2, 2015.
Prior Publication US 2021/0295565 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 13/139 (2018.01); H04N 13/254 (2018.01); G01B 11/25 (2006.01); H04N 13/161 (2018.01); H04N 13/15 (2018.01); H04N 19/625 (2014.01)

CPC H04N 13/161 (2018.05) [G01B 11/2513 (2013.01); H04N 13/139 (2018.05); H04N 13/15 (2018.05); H04N 13/254 (2018.05); H04N 19/625 (2014.11)]

20 Claims

1. A non-transient computer readable medium containing computer executable instructions which are configured to, when executed by a processor:

generate a first fringe encoding and a second fringe encoding for a first predetermined wavelength based on a Digital Fringe Projection (DFP) data of a three-dimensional structure at a first coordinate;

generate a third fringe encoding and a fourth fringe encoding for a second wavelength based on the DFP data at the first coordinate, the second wavelength being longer than the first wavelength;

generate a combined fringe encoding based on the third fringe encoding and the fourth fringe encoding; and

store the first fringe encoding data, the second fringe encoding data, and the combined fringe encoding data in a pixel of two-dimensional image data at a pixel coordinate in the two-dimensional image data corresponding to the first coordinate, the two-dimensional image data being stored in a memory.