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Illumination Invariant Face Recognition and Retrieval Using Local Vertical Index Patterns and Integrated Probabilistic Approach Cover

Illumination Invariant Face Recognition and Retrieval Using Local Vertical Index Patterns and Integrated Probabilistic Approach

Open Access
|Dec 2025

Abstract

Automatic face recognition is a major ramification in the field of Artificial Intelligence. Local binary patterns are designed, such as LBP, GLBP, VLBP, and more extended variants were introduced, but many challenges, like face recognition in various illumination conditions, pixel intensity variation, noisy threshold function, and lower recognition rate etc., have not been addressed. In this paper, we propose a novel feature extraction approach for illumination-insensitive facial recognition and object recognition, as well as under the various illumination conditions named LVIP (Local Vertical Index-based Patterns). This pattern helps to extract features under the varying lighting conditions. Eventually, we also proposed a new similarity measure method based on the feature integration of rudimentary measures to retrieve similar images. The proposed method was investigated on datasets such as Multi–PIE, VGG Face2, IJB, ExDark, and proved to perform better results in terms of precision, accuracy, and recognition rate.

DOI: https://doi.org/10.2478/cait-2025-0037 | Journal eISSN: 1314-4081 | Journal ISSN: 1311-9702
Language: English
Page range: 129 - 144
Submitted on: Jun 30, 2025
Accepted on: Oct 10, 2025
Published on: Dec 11, 2025
Published by: Bulgarian Academy of Sciences, Institute of Information and Communication Technologies
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 V. Uma Maheswari, Rajanikanth Aluvalu, G. R. Anil, published by Bulgarian Academy of Sciences, Institute of Information and Communication Technologies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.