Book Reviews Integration of Visual Modules An Extension of the Marr Paradigm By J o h n (Yiannis) Aloimonos and David S h u l m a n Academic Press, London, 1990 Reviewed by H a i m Levkowitz Institute for Visualization and Perception R e s e a r c h D e p a r t m e n t of C o m p u t e r Science University of Lowell 1 University A v e n u e Lowell, M A 01854 haim@hawk.ulowell.edu Introduction The main goal of the book is to extend Marr's paradigm. In his book, David Mart (Vision, Freeman, 1982) presents the vision problem as a problem of information processing. He presents a general three-level paradigm, in which any machine carrying out an information-processing task must be understood. The three levels are: 1. Computational theory: What is the goal of the computation, why is it appropriate, and what is the logic of the strategy by which it can be carried out? 2. Representation and algorithm: How can this computational theory be implemented? In particular, what is the representation for the input and output, and what is the algorithm for the
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