Mathematics, Vol. 11, Pages 4446: Advanced Deep Learning Techniques for High-Quality Synthetic Thermal Image Generation

Mathematics, Vol. 11, Pages 4446: Advanced Deep Learning Techniques for High-Quality Synthetic Thermal Image Generation

Mathematics doi: 10.3390/math11214446

Authors: Vicente Pavez Gabriel Hermosilla Manuel Silva Gonzalo Farias

In this paper, we introduce a cutting-edge system that leverages state-of-the-art deep learning methodologies to generate high-quality synthetic thermal face images. Our unique approach integrates a thermally fine-tuned Stable Diffusion Model with a Vision Transformer (ViT) classifier, augmented by a Prompt Designer and Prompt Database for precise image generation control. Through rigorous testing across various scenarios, the system demonstrates its capability in producing accurate and superior-quality thermal images. A key contribution of our work is the development of a synthetic thermal face image database, offering practical utility for training thermal detection models. The efficacy of our synthetic images was validated using a facial detection model, achieving results comparable to real thermal face images. Specifically, a detector fine-tuned with real thermal images achieved a 97% accuracy rate when tested with our synthetic images, while a detector trained exclusively on our synthetic data achieved an accuracy of 98%. This research marks a significant advancement in thermal image synthesis, paving the way for its broader application in diverse real-world scenarios.