US 12,249,177 B2
Recognition method of 3D vein pattern and recognition device thereof
Wei-Cheng Chao, Hsinchu (TW); Chia-Hsin Chao, Hsinchu County (TW); Li-Chi Su, Yilan County (TW); Chi-Chin Yang, Hsinchu (TW); and Cheng-Jhih Luo, Hsinchu (TW)
Assigned to Industrial Technology Research Institute, Hsinchu (TW)
Filed by Industrial Technology Research Institute, Hsinchu (TW)
Filed on Dec. 21, 2021, as Appl. No. 17/557,061.
Claims priority of application No. 110145078 (TW), filed on Dec. 2, 2021.
Prior Publication US 2023/0177870 A1, Jun. 8, 2023
Int. Cl. G06V 40/145 (2022.01); G06N 3/04 (2023.01); G06V 10/74 (2022.01); G06V 10/82 (2022.01); G06V 40/20 (2022.01)
CPC G06V 40/145 (2022.01) [G06N 3/04 (2013.01); G06V 10/761 (2022.01); G06V 10/82 (2022.01); G06V 40/20 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A recognition method of 3D vein pattern, comprising:
emitting a plurality of first light beams by a recognition device to a wrist of a user;
receiving a plurality of first reflected light beams from the wrist by the recognition device to form a first 3D vein pattern of the wrist;
comparing differences between the first 3D vein pattern and a wrist vein pattern in a database to identify an identity or a gesture of the user;
in response to the first 3D vein pattern not matching all of the wrist vein pattern in the database, adding the first 3D vein pattern to the wrist vein pattern; and
predicting the identity or the gesture of the user with a convolutional neural network algorithm according to the newly added wrist vein pattern.