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Visibility Algorithms in the Plane
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  • 333 b/w illus. 108 exercises
  • Page extent: 332 pages
  • Size: 247 x 174 mm
  • Weight: 0.818 kg

Library of Congress

  • Dewey number: 006.37
  • Dewey version: 22
  • LC Classification: TA1634 .G485 2007
  • LC Subject headings:
    • Computer vision

Library of Congress Record


 (ISBN-13: 9780521875745)

A human observer can effortlessly identify visible portions of geometric objects present in the environment. However, computations of visible portions of objects from a viewpoint involving thousands of objects is a time consuming task even for high speed computers. To solve such visibility problems, efficient algorithms have been designed. This book presents some of these visibility algorithms in two dimensions. Specifically, basic algorithms for point visibility, weak visibility, shortest paths, visibility graphs, link paths and visibility queries are all discussed. Several geometric properties are also established through lemmas and theorems. With over 300 figures and hundreds of exercises, this book is ideal for graduate students and researchers in the field of computational geometry. It will also be useful as a reference for researchers working in algorithms, robotics, computer graphics and geometric graph theory, and some algorithms from the book can be used in a first course in computational geometry.

• First book entirely devoted to visibility algorithms in computational geometry, useful to researchers in algorithms, robotics, computer graphics and geometric graph theory • Algorithms from the book can be used in a first course in computational geometry • Contains over 300 figures and over 100 exercises, making it ideal as a graduate textbook


Preface; 1. Background; 2. Point visibility; 3. Weak visibility and shortest paths; 4. L-R visibility and shortest paths; 5. Visibility graphs; 6. Visibility graph theory; 7. Visibility and link paths; 8. Visibility and path queries; Bibliography; Index.


'… the book gives a good overview of visibility algorithms in the plane, concentrating on basic algorithms but also covering the state of the art.' Mathematical Reviews

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