TARGET DETECTION METHOD AND APPARATUS AND IMAGE ACQUISITION DEVICE

Title:

TARGET DETECTION METHOD AND APPARATUS AND IMAGE ACQUISITION DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/000225

Kind Code:

A1

Abstract:

The present invention provides a target detection method comprising the following steps controlling a modulated light emitting device to emit optical pulse signals with a first light intensity and a second light intensity to a target to be detected and a background, wherein the capacities of reflecting the light pulse signals of the target to be detected and the background are different, controlling an image sensor to acquire images of the target to be detected and the background, wherein the image sensor comprises a plurality of image acquisition regions, and it successively scans the same image acquisition region once in the first light intensity and in the second light intensity respectively to obtain a first light intensity image and a second light intensity image, and stores them into corresponding locations in a first frame image and a second frame image respectively, distinguishing the target to be detected and the background, using the first frame image and the second frame image. The present invention also provides a target detection apparatus and an image acquisition device. This invention can precisely detect targets, even moving targets, in a strong light background.

Inventors:

SHI DANWEI (CN)
ZHOU KUN (CN)

Application Number:

PCT/CN2010/070879

Publication Date:

January 06, 2011

Filing Date:

March 05, 2010

Export Citation:

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Assignee:

SHENZHEN TAISHAN ONLINE TECH (CN)
SHI DANWEI (CN)
ZHOU KUN (CN)

International Classes:

G06T7/20; G06K9/00

Domestic Patent References:

WO2007025578A1

2007-03-08

Foreign References:

KR20080051645A	2008-06-11
US7023481B1	2006-04-04
CN200820052299U	2008-02-15
CN200610021067A	2006-06-01

Other References: