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Open AccessJournal ArticleDOI

Review of phase measuring deflectometry

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TLDR
The fundamental principle and the basic concepts of PMD technique are introduced and followed by a brief overview of its key developments since it was first proposed to provide some suggestions for potential future investigations.
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This article is published in Optics and Lasers in Engineering.The article was published on 2018-08-01 and is currently open access. It has received 133 citations till now.

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Journal ArticleDOI

Deep learning in optical metrology: a review

TL;DR: Deep learning-enabled optical metrology is a kind of data-driven approach, which has already provided numerous alternative solutions to many challenging problems in this field with better performances as discussed by the authors .
Journal ArticleDOI

Freeform optics for imaging

TL;DR: This article begins with a brief history of freeform optics, focusing on imaging systems, including marketplace emergence, and describes fabrication methods, emphasizing deterministic computer numerical control grinding, polishing, and diamond machining.
Journal ArticleDOI

Deep learning in optical metrology: a review

TL;DR: Deep learning-enabled optical metrology is a kind of data-driven approach, which has already provided numerous alternative solutions to many challenging problems in this field with better performances as discussed by the authors .
Journal ArticleDOI

Calibration of fringe projection profilometry: A comparative review

TL;DR: A review of some of the most used calibration methods for fringe projection profilometry, where both quantitative and qualitative comparative experiments are implemented to show the advantages and constraints of each method.
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Micro deep learning profilometry for high-speed 3D surface imaging

TL;DR: Comparison results show that μDLP has superior performance in terms of the phase accuracy, reconstruction efficiency, and the ease of implementation over widely used Fourier-transform-based fast 3D imaging techniques, verifying that μ DLP is a powerful high-speed 3D surface imaging approach.
References
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Journal ArticleDOI

A flexible new technique for camera calibration

TL;DR: A flexible technique to easily calibrate a camera that only requires the camera to observe a planar pattern shown at a few (at least two) different orientations is proposed and advances 3D computer vision one more step from laboratory environments to real world use.
Journal ArticleDOI

A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses

TL;DR: In this paper, a two-stage technique for 3D camera calibration using TV cameras and lenses is described, aimed at efficient computation of camera external position and orientation relative to object reference coordinate system as well as the effective focal length, radial lens distortion, and image scanning parameters.
Book

A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses

Roger Y. Tsai
TL;DR: A new technique for three-dimensional camera calibration for machine vision metrology using off-the-shelf TV cameras and lenses using two-stage technique has advantage in terms of accuracy, speed, and versatility over existing state of the art.
Proceedings ArticleDOI

The digital Michelangelo project: 3D scanning of large statues

TL;DR: A hardware and software system for digitizing the shape and color of large fragile objects under non-laboratory conditions and the largest single dataset is of the David - 2 billion polygons and 7,000 color images.
Book

Two-Dimensional Phase Unwrapping: Theory, Algorithms, and Software

TL;DR: Methods for Phase Unwrapping, Phase Data, Quality Maps, Masks, and Filters, and Minimum-Norm Methods.
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