US 11,947,035 B2
Feature enhancement and data augmentation method, and motion detection device thereof
Hsuan-Tsung Chang, New Taipei (TW); and Hao-Gong Chou, New Taipei (TW)
Assigned to Wistron Corporation, New Taipei (TW)
Filed by Wistron Corporation, New Taipei (TW)
Filed on Apr. 19, 2021, as Appl. No. 17/233,580.
Claims priority of application No. 110103935 (TW), filed on Feb. 3, 2021.
Prior Publication US 2022/0244353 A1, Aug. 4, 2022
Int. Cl. G01S 7/41 (2006.01); G01S 7/35 (2006.01); G06T 5/20 (2006.01); G06T 5/70 (2024.01)
CPC G01S 7/415 (2013.01) [G06T 5/20 (2013.01); G06T 5/70 (2024.01); G01S 7/356 (2021.05); G06T 2207/10044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A feature enhancement and data augmentation method, for an action detection device, configured for detecting the at least one action of at least one tested subject, the feature enhancement and data augmentation method comprising:
obtaining, by the action detection device, at least one spectrogram; and
performing, by the action detection device, a feature enhancement processing on the at least one spectrogram, to enhance at least one feature corresponding to the at least one action in the at least one spectrogram and generate at least one feature enhanced spectrogram;
wherein the feature enhancement processing comprises a directional filtering.