Title:
BIOMETRIC EXTRACTION METHOD AND DEVICE FOR SECURE MULTI‑PARTY COMPUTATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/071812
Kind Code:
A1
Abstract:
A biometric extraction method for a secure multi‑party computation system. The method comprises: obtaining biometric pre-processed fragments; and performing feature extraction on the pre-processed fragments by means of a neural network; in the first N convolutional pooling layers, performing data calculation on the pre-processed fragments by means of secure multi-party computation respectively to obtain intermediate data; and in the convolutional pooling layers subsequent to the Nth convolutional pooling layer, collecting the intermediate data into a single-party server platform for subsequent calculation, and inputting same to a fully connected layer for completing feature extraction. Also disclosed are a biometric extraction device for a secure multi‑party computation system, a computer storage medium, and a computer program product.
Inventors:
WANG QI (CN)
ZHOU YONGKAI (CN)
ZHOU YONGKAI (CN)
Application Number:
PCT/CN2022/125042
Publication Date:
May 04, 2023
Filing Date:
October 13, 2022
Export Citation:
Assignee:
CHINA UNIONPAY CO LTD (CN)
International Classes:
G06V10/40
Foreign References:
| CN114511705A | 2022-05-17 | |||
| CN113190858A | 2021-07-30 | |||
| CN112949545A | 2021-06-11 | |||
| CN108446680A | 2018-08-24 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (HK) LTD. (CN)
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