Based on analyses of features of spot noise method and unsteady grid, time varying vector fields, a new technique, the unsteady spot noise, is proposed for visualizing 2 dimensional unsteady grid, time varying vector field.

Vector field visualization is an important direction in the study of Visualization in Scientific Computing, spot noise is a texture synthesis technique for vector field visualization, which is of interest in vector field visualization in early.

Removing the speckle noises in beef image using an improved adaptive fuzzy multilevel median filter algorithm;

Study on the application of speckle noise filtering methods in SAR images;

An algorithm based on the anisotropic diffusion equation is presented to suppress the speckle noise of B-Scan ultrasound image.

The Essence of SAR Image Speckle Suppression;

A Speckle Suppressed and Reduction Technology for SAR Images;

Maximum a posteriori filtering for synthetic aperture radar images based on heavy-tailed Rayleigh distribution of speckle;

Besides,positive shot noise in the image is reduced,which significantly improves the quality of the image.

An Efficient Adaptive Filter for Removal of Blotches from Old Film;