This volume is a collection of the Eurographics Tutorials presented at the Eurographics '90 conference in Switzerland. Image synthesis is a traditional topic of Eurographics. But it has become clear in recent years that there is an unnaturally large distance between the two large fields of image synthesis and image analysis - the latter includes such areas as image processing, computer vision, image coding techniques, and 3D reconstruction. There is now a whole range of theoretical problems where the mixture of these two approaches is not only fruitful but also necessary. The spectacular advances in recent years in medical imaging and its applications, in scientific visualization, and in the need for sophisticated input and interaction techniques have all contributed to this development. The tutorial programme of Eurographics '90 was strongly influenced by this development and gives a unique combined perspective on the fields in one volume. The contributors are well known international experts from Europe, Japan and the USA.