It is with great pleasure that I present this fourth vol ume in the series "Advanced Applications in Pattern Recognition." It would be difficult to find two authors better versed in the design and application of parallel image processing systems, due to both their own many years of pioneering in the field and their encyclopedic knowledge of what is going on in uni versity and industrial laboratories around the world. The monograph is unique in its parallel presentation of orthogonal and hexagonal dissections, and the wealth of graphic illustration of algorithmic procedures for processing and...

The need for a book on medica1 imaging techniques became evi dent to the editors of this vo1ume at the 1976 Engineering Founda tion Conference on Non-Invasive Medica1 Diagnosis. This conference treated imaging of the thorax, abdomen, brain, and extremities using ultrasound, radiology, computed tomography, and nuc1ear medi cine. During 1976 and 1977 the editors solicited participants in the conference for contributions to this vo1ume. Other sources were also sought in special areas of interest in medical imaging beyond those individua1s who had been conference participants. Most of the writing...