This book constitutes the refereed proceedings of the First International Conference on Computer Vision Systems, ICVS '99, held in Las Palmas, Gran Canaria, Spain, in January 1999. The 32 revised full papers presented were selected from a total of 65 submissions. The book is divided in sections on vision for navigation, computer vision systems, visual tracking, knowledge-based methods and systems, architectural aspects, active vision, 3D modelling, and object recognition.