This course will present an overview of recent work in modern encryption techniques and recent advances in image, video, audio watermarking, and forensic methods for multimedia data. The course will describe block cipher systems (e.g. DES and AES) and public key systems (e.g. RSA) along with authentication techniques. The course will also describe digital watermarking techniques that include both spatial, spectral, and temporal watermarking algorithms. Particular emphasis will be placed on how encryption and watermarking can be used in the context of the protection of imaging, video, and multimedia systems. The unique nature of these new technologies relative to intellectual property rights will be presented.

This course is an overview of texture; its appearance, modeling and applications in diagnostic imaging. It begins with general examples for defining and modeling texture. Approaches for identifying and measuring image textures are described. These approaches include statistical methods, Markov random field and morphological techniques. Applications of these techniques in two specific problems with diagnostic imaging will be discussed. A model to synthetically generate digital mammographs followed by multi-resolution analysis and segmentation of images is discussed. Then modeling and textural analysis of hard tissues (bone) as a screening tool for osteoporosis is examined. Histomorphometric approaches for both thin slice and 3-D imaging will be discussed.