COLOR DETECTION METHOD AND DEVICE

WIPO Patent Application WO/2017/114250

A1

A color detection method, which relates to the technical field of information detection and is applied to projection devices. The method comprises: obtaining an initial color vector C0 of ambient light in an external environment where a projection device is located (S101); projecting a standard beam having a preset color temperature to a projection background (S102); after reflected light of the standard beam is received, obtaining a current color vector C1 of ambient light in the external environment (S103); and obtaining color information of the projection background according to the initial color vector C0, the current color vector C1 and a preset color obtaining rule (S104). Also provided is a device for executing the color detection method. In the color detection method, an image of a projection background does not need to be collected, and related data can be obtained by using a sensor when color detection is performed on the projection background, and the data amount is smaller than a data amount in image collection, accordingly time spent in data processing is reduced, and the detection speed is improved.

JP5193653	Projection type image display device
JP6459024	Light source device and image display device
JPH0463318	LIQUID CRYSTAL PROJECTOR

JIANG XIN (CN)
ZHAO BAOYING (CN)
HUANG YONGSHUN (CN)

PCT/CN2016/111246

July 06, 2017

December 21, 2016

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QINGDAO HAIER JOINT STOCK CO LTD (CN)
BEIJING ASU TECH CO LTD (CN)

G03B21/00; G01J3/46; H04N9/31

CN104991432A	2015-10-21
CN102314056A	2012-01-11
CN104918372A	2015-09-16
US20110001881A1	2011-01-06
CN1992912A	2007-07-04
CN1350264A	2002-05-22
JP2003304551A	2003-10-24

SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)

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