Need:

• Improve image quality

• Enhance feature extraction

• Improve classification accuracy

• Facilitate change detection

Domains Involved:

• Signal Processing

• Image Processing

• Remote Sensing

Research Staff:

• Dr. Antony Louis Piriyakumar

• Alisha Joy A

• Kiran Badakambi

Outcome:

1. Lee Filter
A statistical filter designed to reduce speckle noise in images. It operates by modeling the radar return based on the local mean and variance of pixel intensities.

2. Frost Filter
Reduces speckle by applying an exponential weighting function that decreases with distance from the central pixel, preserving edges while smoothing noise.

3. Kuan Filter
Handles speckle as multiplicative noise, transforming it into additive noise for more effective filtering and easier post-processing.