Sunil Agrawal

Professor and Coordinator, Department of Electronics & Communication Engineering (ECE)

Sunil Agrawal is professor and coordinator in the Department of Electronics & Communication Engineering (ECE) in the University Institute of Engineering & Technology (UIET) at Panjab University (Chandigarh, India).

FIGURE 1. This image shows a poorly lit scene (a) and a zoomed-in region showing the effect of Gaussian noise (b).

Filtering techniques eliminate Gaussian image noise

May 19, 2020
Block-matching, 3D filters, nonlinear means filtering, and Shearlet transform techniques show success in denoising images.
FIGURE 1. A flow chart shows the basic process of image fusion in the spatial domain for a visible and infrared image of the same scene.

Image Fusion: Spatial-domain filtering techniques dictate low-light visible and IR image-fusion performance

April 1, 2019
The performance of image-fusion algorithms depends heavily on how spatial information is extracted and processed through a variety of spatial-filtering techniques.