HENRY STARK is Bodine Professor and former chairman of theDepartment of Electrical and Computer Engineering at the IllinoisInstitute of Technology. He has written over 130 papers and bookchapters on topics ranging from image recovery and signalprocessing to neural nets and sampling theory. Professor Stark iscoauthor of Modern Electrical Communications and Probability,Random Processes, and Estimation Theory for Engineers and coeditorof Signal Processing Methods for Audio, Images, andTelecommunications. YONGYI YANG is Assistant Professor at the Illinois Institute ofTechnology. He is a principal contributor to Signal ProcessingMethods for Audio, Images, and Telecommunications, coedited byHenry Stark.