Feature point extraction method and device, terminal equipment and storage medium
By acquiring the binary image of the fingerprint and determining the feature points based on a preset pixel value matrix, the problem of low fingerprint feature point extraction efficiency in the prior art is solved, and fast and accurate feature point extraction is achieved.
CN117058720BActive Publication Date: 2026-06-16SHENZHEN CHIPSAILING TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN CHIPSAILING TECH CO LTD
- Filing Date
- 2023-07-26
- Publication Date
- 2026-06-16
Smart Images
Figure CN117058720B_ABST
Abstract
The application is suitable for the field of fingerprint identification technology, and provides a feature point extraction method and device, terminal equipment and storage medium, wherein the feature point extraction method comprises: acquiring a fingerprint binary image; determining a first feature point based on each pixel point in the fingerprint binary image and a first preset pixel value matrix, the first preset pixel value matrix representing a first pixel value distribution of pixel points in a preset range in the fingerprint binary image; determining a second feature point based on each pixel point in the fingerprint binary image and a second preset pixel value matrix, the second preset pixel value matrix representing a second pixel value distribution of pixel points in a preset range in the fingerprint binary image. The application can quickly extract feature points on the fingerprint binary image, and improves the efficiency of fingerprint feature point extraction.
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