I am interested in not only the mathematical aspects involved in these techniques, but also in their application to various types of images and practical problems. The mathematical priniciples and instrumentation used in CT imaging are interesting and intriguing, and form the background for various imaging techniques in different applications. I teach and work on x-ray imaging, various forms of tomographic imaging, techniques for acquisition of projection data, algorithms for reconstruction of images from projections, and applications of CT imaging. The auditory system has not been used much for image analysis in spite of the fact that it has several advantages over the visual system.
Texture is one of the main image attributes used for pattern recognition in several areas.
We have developed auditory display and sonification procedures for presentation and analysis of textured images. An auditory display procedure that consists of playing in sequence the projections of the image at several angles is then developed. A linear prediction model is used to generate the sound signal from the projection data. We have developed a sonification procedure to convert images with periodic texture to sound with the emphasis on displaying the essential features of the texture element and periodicity. The sound signal represents texture information with both micro and macro features such as timbre, pitch, and rhythm.