US 10,893,594 B2
Method of identifying light sources and a corresponding system and product
Marco Cristani, Verona (IT); Alessio Del Bue, Genoa (IT); Michael Eschey, Wehringen (DE); Fabio Galasso, Garching (DE); Irtiza Hasan, Gujranwala (PK); Herbert Kaestle, Traunstein (DE); and Theodore Tsesmelis, Loutra-Mytilene (GR)
Assigned to Osram GmbH, Munich (DE); Fondazione Istituto Italiano di Tecnologia, Genoa (IT); and Université degli Studi di Verona, Verona (IT)
Appl. No. 16/341,465
Filed by OSRAM GmbH, Munich (DE); Fondazione Istituto Italiano di Tecnologia, Genoa (IT); and Università degli Studi di Verona, Verona (IT)
PCT Filed Oct. 10, 2017, PCT No. PCT/IB2017/056246
§ 371(c)(1), (2) Date Apr. 12, 2019,
PCT Pub. No. WO2018/069827, PCT Pub. Date Apr. 19, 2018.
Claims priority of application No. 102016000103146 (IT), filed on Oct. 13, 2016.
Prior Publication US 2019/0373704 A1, Dec. 5, 2019
Int. Cl. H05B 47/105 (2020.01); G06T 7/00 (2017.01); G01J 1/02 (2006.01); G01J 1/42 (2006.01)
CPC H05B 47/105 (2020.01) [G01J 1/0228 (2013.01); G01J 1/4204 (2013.01); G06T 7/97 (2017.01); G01J 2001/4247 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/10152 (2013.01); G06T 2207/30242 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of controlling a lighting system including a set of lighting devices for lighting an environment, the method including:
receiving from at least one image sensor an image signal including a sequence of images of said environment under different conditions of illumination and light reflection,
processing said image signal to provide a light source identification signal representative of light sources affecting said environment, and
controlling said set of lighting devices as a function of said light source identification signal,
wherein processing said image signal includes:
extracting illumination conditions of said environment from said sequence of images to provide shading information, and
identifying a number of said light sources affecting said environment by linear dimensionality reduction.