Fingerprint identification method based on density chart model
A technology of fingerprint identification and density map, which is applied in character and pattern recognition, instruments, computer parts, etc., and can solve problems such as unsatisfactory improvement effects, application obstacles, and large storage space
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0181] Our invention can be implemented on ordinary PC computers, and there is no requirement for the operating system.
[0182] The fingerprint recognition algorithm based on multi-features is described in detail below. The main steps in the feature extraction stage include: effective area extraction, direction field estimation, image processing and enhancement, minutiae point extraction, and density map feature extraction; the main steps in the feature comparison or recognition stage include: minutiae point comparison, density map comparison, Decision Fusion. Among them, each step of effective area extraction, direction field estimation, image processing and enhancement, minutiae extraction and minutiae comparison can be carried out by traditional methods. Each step is introduced one by one below. Refer to Figure 1 for the overall flow chart, and Figure 2 introduces the results of each part of the entire process through a specific example.
[0183] Feature extraction:
...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com