Improvement of 3D surface reconstruction using fringe projection by Talbot effect and extended Fourier transform
| Autor: | Mario Pérez Cortés, Jennifer López Chacón, Rafael González Campos, Marco Antonio Salgado Verduzco, Mauricio Ortiz Gutiérrez, Arturo Olivares Pérez, Juan Carlos Torres |
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| Rok vydání: | 2017 |
| Předmět: |
business.industry
Computer science Fast Fourier transform ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Short-time Fourier transform Physics::Optics 02 engineering and technology Grating 021001 nanoscience & nanotechnology 01 natural sciences Discrete Fourier transform Structured-light 3D scanner 010309 optics symbols.namesake Fourier transform Computer Science::Computer Vision and Pattern Recognition 0103 physical sciences Talbot effect symbols Computer vision Artificial intelligence 0210 nano-technology business Projection (set theory) ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2253543 |
| Popis: | The 3D surface reconstruction is done by analyzing the deformation of the image of binary grating projected onto the relief of an object, after that, the phase of the deformed pattern is extracted by Fourier transform and unwrapping the phase. There are several techniques for image grating projection and one of them is the so called Talbot Effect that creates self-images of a binary gratings. In this work one of the self-image of a grating is used for projection on the relief of an object. The deformed image is captured by a camera and is analyzed by the proposed Extended Fourier Transform (XFT) algorithm. The XFT algorithm is and enhancement of the common FFT algorithm and allows an improvement in surface reconstruction. A comparison between the reconstructed surfaces using traditional FFT algorithm and the proposed XFT algorithm is presented. |
| Databáze: | OpenAIRE |
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