特征点匹配 Resources

Showing items tagged with "特征点匹配"

Several fingerprint matching techniques exist, with the most widely used being: Correlation-based matching, which computes similarity across different pixel paths and rotations but suffers from high computational complexity. Feature point-based matching, the most popular technique, identifies and maps minutiae points for comparison, yet faces challenges with low-quality fingerprints. Pattern-based (image-based) matching compares fingerprint patterns (arches, whorls, loops) between templates and candidate images but requires precise alignment. Implementation considerations include algorithmic efficiency, preprocessing requirements, and reliability under varying image quality conditions.

MATLAB 265 views Tagged

This program implements feature point matching between two images using a three-stage approach: first detecting corners with Harris corner detection algorithm, then filtering matching points using Sum of Squared Differences (SSD) algorithm, and finally connecting matched points with lines for visualization. The implementation includes parameter tuning capabilities for optimizing matching accuracy.

MATLAB 191 views Tagged

SIFT feature point extraction code with feature matching between two images, suitable for applications like image stitching. Implementation includes keypoint detection, descriptor computation, and matching algorithms.

MATLAB 182 views Tagged

The general process of fingerprint recognition involves fingerprint acquisition, preprocessing, feature extraction, and feature matching. Fingerprints are categorized into three main types: whorl, arch, and loop. Image preprocessing plays a critical role since its quality directly impacts subsequent feature extraction and recognition accuracy. Code implementation typically includes noise reduction algorithms, filtering techniques, and image enhancement operations.

MATLAB 203 views Tagged