Title:
METHOD AND DEVICE FOR RECOGNIZING POINTING LOCATION BY USING RADAR
Document Type and Number:
WIPO Patent Application WO/2018/151504
Kind Code:
A1
Abstract:
Provided is a method and device for recognizing a pointing location by using a radar. A device for recognizing a user's pointing location by using a plurality of radars arranged around a screen according to an embodiment of the present invention comprises: a weight value space generation unit for generating a weight value space comprising a plurality of unit spaces in a space in front of the screen, and setting weight values in proportion to intensity of clutter-removed reception signals of the plurality of radars to the unit spaces corresponding to distances of signals detected from the reception signals, respectively; a hand region detection unit for adding up the set weight values for each of the unit spaces of the weight value space, and detecting, as a hand region, unit spaces each having a total weight value exceeding a predetermined threshold value and having a shortest distance to the screen; an effective radar selection unit for selecting, as an effective radar, a radar having a shortest distance to the detected hand region among the plurality of radars; and a finger location determination unit for detecting a first location (first path) exceeding a predetermined threshold value, from a reception signal of each of the selected effective radars, and determining, as a location of the user's finger, an intersection point using a distance to each of the detected first locations (first paths).
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Inventors:
CHO SUNG HO (KR)
YIM DAE HYEON (KR)
YIM DAE HYEON (KR)
Application Number:
PCT/KR2018/001887
Publication Date:
August 23, 2018
Filing Date:
February 13, 2018
Export Citation:
Assignee:
WRT LAB CO LTD (KR)
International Classes:
G06F3/01; G01S13/02
Foreign References:
| KR20170012422A | 2017-02-02 | |||
| KR20160128318A | 2016-11-07 | |||
| KR20080102516A | 2008-11-26 | |||
| US20110181509A1 | 2011-07-28 | |||
| US20120280900A1 | 2012-11-08 |
Attorney, Agent or Firm:
MIN, Young Joon (KR)
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