High-Speed 3D Imaging with Digital Fringe Projection Techniques: 1st Edition (Hardback) book cover

High-Speed 3D Imaging with Digital Fringe Projection Techniques

1st Edition

By Song Zhang

CRC Press

198 pages | 84 B/W Illus.

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pub: 2016-03-01
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Description

Digital fringe projection (DFP) techniques are used for non-contact shape measurement of 3D images. In the rapidly expanding field of 3D high-speed imaging, the demand for DFP continues to grow due to the technology’s fast speed, flexibility, low cost, and high accuracy.

High-Speed 3D Imaging with Digital Fringe Projection Techniques discusses the generation of digital fringe with digital video projection devices, covering a variety of core technical aspects. The book begins by establishing the theoretical foundations of fringe pattern analysis, reviewing various 3D imaging techniques while highlighting the advantages of DFP. The author then:

  • Describes the differences between digital light processing (DLP), liquid crystal display (LCD), and liquid crystal on silicon (LCoS)
  • Explains how to unwrap phase maps temporally and spatially
  • Shows how to generate fringe patterns with video projectors
  • Demonstrates how to convert phase to coordinates through system calibrations
  • Provides a detailed example of a built-from-scratch 3D imaging system

Incorporating valuable insights gained during the author’s 15+ years of 3D imaging research, High-Speed 3D Imaging with Digital Fringe Projection Techniques illuminates the pathway to advancement in high-speed 3D optical imaging using DFP.

Reviews

"… a timely publication that comprehensively describes digital fringe projection techniques for 3D surface measurement and guides you to the research frontier in a friendly manner. You will be eager to develop such a system or improve your own system by testing the exciting ideas presented in the book. The book also precisely 'measures' the author’s enthusiastic pursuit of research excellence."

—Qian Kemao, Nanyang Technological University, Singapore

"I have long awaited a textbook devoted to structured light illumination (SLI), and Song Zhang has fulfilled that wish with a well-written and thoughtful discussion of the theory, technology, and implementation of SLI. SLI has been the workhorse of precision non-contact industrial measurement, but has been overshadowed by the popularity of stereo vision in entertainment markets. I believe Song Zhang’s work will bring SLI to the forefront of non-contact measurement."

—Laurence G. Hassebrook, University of Kentucky and Huntsbrook Inc., Lexington, USA

"… presents a solid background in the theory and many algorithms used for 3D fringe projection methods with the addition of very practical information on fringe projection hardware, system design, and calibration that are needed to make a reliable system. Many topics covered in the book are often overlooked in publications, but are essential for making a system that produces meaningful 3D data over just pretty pictures. … This book fills an important gap between the vast published material on phase shift analysis done primarily for interferometry and puts the tools in perspective for pattern projection triangulation methods."

—Kevin Harding, Fellow and Past President of SPIE

"Both the theoretical analysis and algorithm development proposed in this book are useful for researchers and engineers, and can serve as specialized topics for students in optical and computer engineering. In the book, the description and discussion are excellent. … The author has produced a comprehensive reference with a concentration on the principles, techniques, and applications. … This is one of the finest books on high-speed 3D imaging with fringe projection."

—Xianyu Su, Sichuan University, Chengdu, China

Table of Contents

Introduction

Time of Flight

Laser Triangulation

Stereo Vision

Structured Light

Digital Fringe Projection

Book Organization

Concluding Remarks

Theoretical Foundation of Fringe Analysis Techniques

Introduction

Fringe Pattern Generation with Coherent Laser Interference

Fringe Analysis Methods

Two- and Multiwavelength Phase-Shifting Algorithms

Summary Remarks

Digital Fringe Generation Technique

Introduction

Basics of DFP System

Digital Video Projection Technologies

Summary Remarks

Temporal Phase Unwrapping for Digital Fringe Projection Systems

Introduction

Multifrequency Phase-Shifting Algorithm

Adding Multiple Binary Coded Structured Patterns

Encoding Fringe Order into Phase-Shifted Fringe Patterns

Adding a Single Stair Pattern

Adding a Single Statistical Pattern

Embedding Statistical Pattern into Phase-Shifted Patterns

Further Discussion

Summary Remarks

Spatial Phase-Unwrapping Algorithm for Real-Time Applications

Introduction

Algorithm

Experiments

Summary Remarks

Projector Nonlinear Gamma Calibration and Correction

Introduction

Principle

Simulations

Experiments

Summary Remarks

Digital Fringe Projection System Calibration

Introduction

Reference-Plane-Based DFP System Calibration

Accurate DFP System Calibration

Example System Calibration

Calibration Evaluation

Summary Remarks

Hands-On Example of System Design and Development

Problem Statement

Mechanical Design and Integration

Calibration Target

System Calibration

3D Reconstruction

Summary Remarks

Practical Considerations for System Development

Angle of Fringe Stripes

Other Considerations

Summary Remarks

Toward High-Speed 3D Imaging with Phase-Shifting Methods

Introduction

Real-Time 3D Imaging with Sinusoidal Fringe Projection

Superfast 3D Imaging with Binary Defocusing

Discussions

Summary Remarks

References

About the Author

Author

Song Zhang earned his BS from the University of Science and Technology of China, and his MS and PhD in mechanical engineering from Stony Brook University. He then spent three years in the Mathematics Department at Harvard University before joining Iowa State University as an assistant professor of mechanical engineering. He recently moved to Purdue University, where he is currently an associate professor of mechanical engineering. A widely published and highly decorated SPIE fellow, Professor Zhang is often credited with developing the first-ever high-resolution, real-time 3D optical imaging system. Besides being extensively utilized in academia, the technologies Professor Zhang has developed have been used by the rock band Radiohead to create a music video for the 2007 song "House of Cards," and by Zaftig Films to produce the 2015 movie Focus.

About the Series

Optical Sciences and Applications of Light

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Subject Categories

BISAC Subject Codes/Headings:
COM037000
COMPUTERS / Machine Theory
TEC019000
TECHNOLOGY & ENGINEERING / Lasers & Photonics