These original contributions, concerning work on machine vision to the latest understanding of human visual processes, are written by ``rising stars'' in both fields and offer an overview of the leading work on modeling of human visual processes, image processing and object recognition. Some prominent examples of how computer analysis of visual processes results in more precise models of the operations of various visual mechanisms are presented in a form that is easily understood by nonmathematicians. This will be essential reading for physiologists and psychologists studying vision and object recognition in humans and primates.