3D real-time measurement system of seam with laser

Min-shuang Huang; Jun-fen Huang

doi:10.1117/12.2054386

21 February 2014 3D real-time measurement system of seam with laser

Min-shuang Huang, Jun-fen Huang

Proceedings Volume 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013; 91420U (2014) https://doi.org/10.1117/12.2054386
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held July-December 2013, 2013, SuZhou, China

Abstract

3-D Real-time Measurement System of seam outline based on Moiré Projection is proposed and designed. The system is composed of LD, grating, CCD, video A/D, FPGA, DSP and an output interface. The principle and hardware makeup of high-speed and real-time image processing circuit based on a Digital Signal Processor (DSP) and a Field Programmable Gate Array (FPGA) are introduced. Noise generation mechanism in poor welding field conditions is analyzed when Moiré stripes are projected on a welding workpiece surface. Median filter is adopted to smooth the acquired original laser image of seam, and then measurement results of a 3-D outline image of weld groove are provided.

Citation Download Citation

Min-shuang Huang and Jun-fen Huang "3D real-time measurement system of seam with laser", Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 91420U (21 February 2014); https://doi.org/10.1117/12.2054386

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KEYWORDS

Digital signal processing

Image processing

3D image processing

Field programmable gate arrays

3D metrology

Signal processing

3D acquisition

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