Image-Deblurring and Restoration: Exploring Advanced Techniques for Enhanced Visual Clarity

Abstract

This study introduces an end-to-end scale-recurrent deep network for deblurring multi-modal medical images affected by motion artifacts. The network features a novel residual dense block with spatial-asymmetric attention, enhancing the recovery of salient information during medical image deblurring. Comprehensive evaluations demonstrate the method's superiority over existing techniques, showcasing its ability to remove blur without introducing visual artifacts. Integration into medical image analysis tasks, such as segmentation and detection, highlights accelerated performance. Additionally, a simple L0-regularized prior is proposed for text image deblurring, leveraging intensity and gradient properties. The method outperforms state-of-the-art text image deblurring algorithms, demonstrating effectiveness in deblurring low- illumination images without complex edge selection strategies. Our proposed end-to-end scale-recurrent deep network for medical image deblurring exhibits robust performance, outshining existing methods in both qualitative and quantitative evaluations. The inclusion of a spatial-asymmetric attention mechanism and a residual dense block enhances the network's ability to recover crucial information from blurred medical images. Furthermore, the seamless integration of our deblurring method into various medical image analysis tasks showcases its versatility and effectiveness in accelerating performance. On a different front, our contribution extends to text image deblurring, where a straightforward yet powerful L0-regularized prior based on intensity and gradient proves effective. This method not only surpasses state-of-the-art text image deblurring algorithms but also demonstrates applicability to challenging scenarios such as deblurring low-illumination images. The combined results highlight the potential impact of our approaches in advancing the quality and applicability of deblurring techniques in both medical imaging and text-related applications. Keywords—Multi-Scale, Unet, Deblurring, Fast Fourier Transform, ResBlock, Non-linear Activation Free Block, NFResnet, Charbonnier, Edge, Frequency Reconstruction.