Research on Fingerprint Orientation Field Techniques

Graduation Project Topic: Research on Fingerprint Orientation Field Techniques, encompassing three principal fingerprint orientation field methods: point-based orientation field, block-based orientation field, and continuously distributed orientation field. These techniques are respectively employed to analyze directional information within fingerprint images. The research involves implementing algorithms that calculate local ridge directions using gradient-based methods (e.g., Sobel/Prewitt operators) for point orientation, region-based averaging for block orientation, and mathematical modeling for continuous distribution. Through comparative analysis of these orientation field generation methods, we can enhance the understanding and application of fingerprint recognition technology. The program documentation includes detailed implementation guides covering decompression procedures, function calls for orientation field computation (such as direction estimation using sliding windows), and parameter optimization techniques. This information aims to support your research in fingerprint biometric systems.