US 12,482,250 B2
Apparatus and method for motion recognition based on pulse radar
Hui Sup Cho, Daegu (KR); and Young Jin Park, Daegu (KR)
Assigned to DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, Daegu (KR)
Appl. No. 18/030,347
Filed by DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, Daegu (KR)
PCT Filed Sep. 7, 2021, PCT No. PCT/KR2021/012155
§ 371(c)(1), (2) Date Apr. 5, 2023,
PCT Pub. No. WO2022/097894, PCT Pub. Date May 12, 2022.
Claims priority of application No. 10-2020-0145405 (KR), filed on Nov. 3, 2020.
Prior Publication US 2023/0377167 A1, Nov. 23, 2023
Int. Cl. G06V 10/82 (2022.01); G01S 7/06 (2006.01); G01S 7/41 (2006.01); G01S 13/89 (2006.01); G06T 5/50 (2006.01); G06T 7/20 (2017.01)
CPC G06V 10/82 (2022.01) [G01S 7/062 (2013.01); G01S 7/415 (2013.01); G01S 13/89 (2013.01); G06T 5/50 (2013.01); G06T 7/20 (2013.01); G01S 7/417 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/20212 (2013.01); G06T 2207/30196 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of operating a motion recognition apparatus, the method comprising:
receiving a plurality of frame signals based on radar pulses reflected from a target at different times;
generating, by a processor, a plurality of micro-range enhanced frame signals obtained by reinforcing a component of a second region having more movement than movement of a first region among the plurality of frame signals, and generating a micro-range enhanced frame set formed by stacking, along a time axis, the plurality of micro-range enhanced frame signals at preset time intervals;
generating, by the processor, a micro-range enhanced radar image which is an image obtained by viewing the micro-range enhanced frame set in a direction perpendicular to the time axis and an index axis of the micro-range enhanced frame set, the index axis being an axis related to a distance to the target; and
determining, by the processor, motion of the target by inputting the micro-range enhanced radar image to a machine learning-based learning model.