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cs.CV2026
Single Image Defogging Using a Fourth-Order Telegraph PDE Guided by Physical Haze Modeling
Manish Kumar, Rajendra K. Ray
In real-world scenarios, image defogging is an inverse problem due to unknown scene depth, atmospheric scattering, and the common absence of ground truth . To resolve the issue, we…
cs.CV2026
Comparative Study of Weighted and Coupled Second- and Fourth-Order PDEs for Image Despeckling in Grayscale, Color, SAR, and Ultrasound
Manish Kumar, Rajendra K. Ray
Partial Differential Equation (PDE)-based approaches have gained significant attention in image despeckling due to their strong capability to preserve structural details while supp…
cs.CV2026
New Fourth-Order Grayscale Indicator-Based Telegraph Diffusion Model for Image Despeckling
Rajendra K. Ray, Manish Kumar
Second-order PDE models have been widely used for suppressing multiplicative noise, but they often introduce blocky artifacts in the early stages of denoising. To resolve this, we…