Dynamic three-dimensional shape measurement based on light field imaging

Fan Yang; Wei Yan; Peng Tian; Fanxing Li; Fuping Peng

doi:10.1117/12.2510920

30 January 2019 Dynamic three-dimensional shape measurement based on light field imaging

Fan Yang, Wei Yan, Peng Tian, Fanxing Li, Fuping Peng

Proceedings Volume 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics; 108410D (2019) https://doi.org/10.1117/12.2510920
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Unlike traditional imaging, the light field imaging can obtain location and direction information by one shot, which makes the dynamic three-dimensional shape measurement possible. Firstly, this paper establishes a pixel light field model, and calibrates the measurement system, which lays the foundation for light field refocus. Then proposes light field 3-D shape measurement method based on digital focus distance measurement and appropriate sharpness evaluation function. Meanwhile, hardware module used in dynamic three-dimensional shape measurement based on light field imaging is designed, which is responsible for real-time collection and processing of the light field images and greatly improves the reconstruction speed of the images. Finally achieve light field 3-D shape measurement. The experimental results are present to demonstrate the feasibility of this technique.

Citation Download Citation

Fan Yang, Wei Yan, Peng Tian, Fanxing Li, and Fuping Peng "Dynamic three-dimensional shape measurement based on light field imaging", Proc. SPIE 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics, 108410D (30 January 2019); https://doi.org/10.1117/12.2510920

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KEYWORDS

3D image processing

3D metrology

Image processing

Imaging systems

Optical testing

Sensors

3D acquisition

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