NAF-DPM: A Nonlinear Activation-Free Diffusion Probabilistic Model for Document Enhancement

arXiv:2404.05669v1 Announce Type: new
Abstract: Real-world documents may suffer various forms of degradation, often resulting in lower accuracy in optical character recognition (OCR) systems. Therefore, a crucial preprocessing step is essential to eliminate noise while preserving text and key features of documents. In this paper, we propose NAF-DPM, a novel generative framework based on a diffusion probabilistic model (DPM) designed to restore the original quality of degraded documents. While DPMs are recognized for their high-quality generated images, they are also …

arxiv cs.cv diffusion document free probabilistic model type