Active Lighting and Its Application for Computer Vision

Active Lighting and Its Application for Computer Vision
Author: Katsushi Ikeuchi
Publisher: Springer Nature
Total Pages: 309
Release: 2020-09-07
Genre: Computers
ISBN: 3030565777

This book describes active illumination techniques in computer vision. We can classify computer vision techniques into two classes: passive and active techniques. Passive techniques observe the scene statically and analyse it as is. Active techniques give the scene some actions and try to facilitate the analysis. In particular, active illumination techniques project specific light, for which the characteristics are known beforehand, to a target scene to enable stable and accurate analysis of the scene. Traditional passive techniques have a fundamental limitation. The external world surrounding us is three-dimensional; the image projected on a retina or an imaging device is two-dimensional. That is, reduction of one dimension has occurred. Active illumination techniques compensate for the dimensional reduction by actively controlling the illumination. The demand for reliable vision sensors is rapidly increasing in many application areas, such as robotics and medical image analysis. This book explains this new endeavour to explore the augmentation of reduced dimensions in computer vision. This book consists of three parts: basic concepts, techniques, and applications. The first part explains the basic concepts for understanding active illumination techniques. In particular, the basic concepts of optics are explained so that researchers and engineers outside the field can understand the later chapters. The second part explains currently available active illumination techniques, covering many techniques developed by the authors. The final part shows how such active illumination techniques can be applied to various domains, describing the issue to be overcome by active illumination techniques and the advantages of using these techniques. This book is primarily aimed at 4th year undergraduate and 1st year graduate students, and will also help engineers from fields beyond computer vision to use active illumination techniques. Additionally, the book is suitable as course material for technical seminars.

A History of Light and Colour Measurement

A History of Light and Colour Measurement
Author: Sean F. Johnston
Publisher: CRC Press
Total Pages: 285
Release: 2015-05-05
Genre: Science
ISBN: 1420034774

2003 Paul Bunge Prize of the Hans R. Jenemann Foundation for the History of Scientific Instruments Judging the brightness and color of light has long been contentious. Alternately described as impossible and routine, it was beset by problems both technical and social. How trustworthy could such measurements be? Was the best standard of inten

Introduction to Planetary Photometry

Introduction to Planetary Photometry
Author: Michael K. Shepard
Publisher: Cambridge University Press
Total Pages: 263
Release: 2017-04-27
Genre: Nature
ISBN: 110713174X

This accessible handbook demonstrates how reflected light can be measured and used to investigate the properties of Solar System objects.

Introduction to Radiometry and Photometry, Second Edition

Introduction to Radiometry and Photometry, Second Edition
Author: William Ross McCluney
Publisher: Artech House
Total Pages: 485
Release: 2014-11-01
Genre: Technology & Engineering
ISBN: 1608078345

This second edition of an Artech House classic title describes in detail the relationship between radiometry and photometry. It covers information needed to solve problems in radiation transfer and detection, detectors, measuring instruments, and concepts in colorimetry. This revised second edition presents an updated treatment of modern radiometry and photometry, including brand new sections on applications and developments in light sources and scientific instruments for measuring radiation and light. Engineers are also provided with an exciting new chapter on the use of computerized optical ray tracing for “virtual” experiments on optical systems.