Three-Dimensional Measurement Method of Light Field Imaging Based on Deep Learning

Junlong Wu; Zhenghua Guo; Xianfeng Chen; Shuai Ma; Xu Yan; Licheng Zhu; Shuai Wang; Ping Yang

doi:10.3788/CJL202047.1204005

Journals >Chinese Journal of Lasers >Volume 47 >Issue 12 >Page 1204005 > Article

Chinese Journal of Lasers
Vol. 47, Issue 12, 1204005 (2020)

Three-Dimensional Measurement Method of Light Field Imaging Based on Deep Learning

Junlong Wu^1、2、3, Zhenghua Guo^1、2、3, Xianfeng Chen^1、2、3, Shuai Ma^1、2、3, Xu Yan^1、2、3, Licheng Zhu^1、2、3, Shuai Wang^1、3, and Ping Yang^1、3、*

Author Affiliations

¹Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

²Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

³University of Chinese Academy of Sciences, Beijing 100049, China

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Abstract

To estimate the accurate disparity in weak texture region and fine structure region when the light field camera is used for three-dimensional measurement, a model of the light field depth estimation based on deep learning technology is proposed. Moreover, the relationship between the disparity and corresponding depth is also established. The proposed method is applied to a variety of complex scenes, and the experimental results show that the proposed method can accurately estimate the disparity information in the weak texture region and fine structure region, and leading to a good reconstruction of three-dimensional structure. The processing time of the proposed method is compressed to the order of 1s, which is 1 to 2 orders of magnitude lower than the traditional methods based on cost optimization.

Keywords

deep learning depth estimation light field imaging measurement three-dimensional measurement

1 引言

传统的视觉三维测量方案主要指立体视觉技术,这类技术首先通过多相机捕获场景的多视角信息,然后基于立体匹配算法估计出场景的视差^[1-4]。在标定相机参数之后,立体视觉技术能方便地实现视差与深度值之间的转换。与之相比,光场三维测量采用光场相机对场景进行成像。

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Wu Junlong, Guo Zhenghua, Chen Xianfeng, Ma Shuai, Yan Xu, Zhu Licheng, Wang Shuai, Yang Ping. Three-Dimensional Measurement Method of Light Field Imaging Based on Deep Learning[J]. Chinese Journal of Lasers, 2020, 47(12): 1204005

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Paper Information

Category: Measurement and metrology

Received: Jun. 9, 2020

Accepted: --

Published Online: Nov. 18, 2020

The Author Email: Ping Yang (pingyang2516@163.com)