MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641123918 A) filed by Vellore Institute Of Technology on October 16, 2026, for A System And Method For Adaptive Region-Wise Enhancement Of Contactless Fingerprint Images.
Inventors include Ezhilmaran Devarasan; and Jenisha Rachel S.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: A system (100) and method for adaptive enhancement of contactless fingerprint images are disclosed. The system (100) comprises an image acquisition interface, at least one processor, and a memory configured to compute a Neutrosophic Quality Index (NQI) from truth, indeterminacy, and falsity membership values determined for image pixels. The system (100) automatically segments the fingerprint image into multiple quality zones according to predetermined NQI threshold values and assigns a corresponding spatial filtering kernel to each quality zone. A region-wise Neutrosophic Similarity Score (NSS)-based enhancement operation is independently performed for the respective quality zones, followed by reconstruction of an enhanced fingerprint image using Gaussian-weighted boundary blending. The system (100) further recomputes the NQI and selectively reprocesses quality zones failing to satisfy a predetermined convergence criterion until convergence or a maximum iteration count is reached. The disclosed architecture provides adaptive region-wise fingerprint image enhancement through coordinated quality assessment, kernel assignment, enhancement, reconstruction, and iterative quality evaluation
Disclaimer: Curated by HT Syndication.
