Perceptual Image and Video Processing  Projects

Perceptual Video Assessment

For this project, we are conducting a number of psychophysical experiments.  The experiments are designed to help find the most significant factors in video quality assessment.  How important is the detection threshold?  Masking effects?  Video content?  The experimental data is also being used to develop objective measures of video quality.

Color Enhancement and Re-Rendition

We are developing a technique for color contrast enhancement, which works in the xy chromaticity space associated with the CIE XYZ color space.  This work is also useful for simulating changes in the color of a light source.  

Color Image Filtering

Two color filtering methods are considered under this project.  The first method uses a color quaternion representation to find the edges in a color image.  The second method proposed an efficient structure for filtering color images using the Center of Gravity Law of Color Mixture.