High-speed 3D measurements at 20,000Hz with deep convolutional neural networks

Shijie Feng; Chao Zuo; Qian Chen

doi:10.1117/12.2537914

18 November 2019 High-speed 3D measurements at 20,000Hz with deep convolutional neural networks

Shijie Feng, Chao Zuo, Qian Chen

Proceedings Volume 11189, Optical Metrology and Inspection for Industrial Applications VI; 111890Y (2019) https://doi.org/10.1117/12.2537914
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Nowadays, the speed of ultra-fast photography can exceed one quadrillion. However, it can record only two-dimensional images which lack the depth information, greatly limiting our ability to perceive and to understand the complex real-world objects. Inspired by recent successes of deep learning methods in computer vision, we present a novel high-speed three-dimensional (3D) surface imaging approach named micro deep learning profilometry (μDLP) using the structured light illumination. With a properly trained deep neural network, the phase information is predicted from a single fringe image and then can be converted into the 3D shape. Our experiments demonstrate that μDLP can faithfully retrieve the geometry of dynamic objects at 20,000 frames per second. Moreover, comparative 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 μDLP is a powerful high-speed 3D surface imaging approach.

Citation Download Citation

Shijie Feng, Chao Zuo, and Qian Chen "High-speed 3D measurements at 20,000Hz with deep convolutional neural networks", Proc. SPIE 11189, Optical Metrology and Inspection for Industrial Applications VI, 111890Y (18 November 2019); https://doi.org/10.1117/12.2537914

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

3D image processing

3D metrology

Digital Light Processing

Stereoscopy

Convolutional neural networks

Structured light

Fourier transforms

Show All Keywords

Keywords/Phrases

Search In:

Publication Years