Research on 3-D Real-Time Measurement System of Seam with Laser

Author

Huang Min-Shuang ; Huang Jun-Fen ; Tang Jian ; Jiang Li-Pei

Author_Institution

Opto-Mechatron. Equip. Technol. Beijing Area Major Lab., Beijing Inst. Of Petrochem. Technol., Beijing, China

fYear

2013

fDate

16-17 Jan. 2013

Firstpage

870

Lastpage

874

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 work piece 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.

Keywords

CCD image sensors; digital signal processing chips; field programmable gate arrays; image processing; median filters; moire fringes; optical images; optical variables measurement; welding; CCD; DSP; FPGA; LD; Moiré projection; digital signal processor; grating; median filter; noise generation mechanism; seam 3D real-time measurement system; seam laser image; video A/D; weld groove 3D outline image; Automation; Mechatronics; 3-D outline measurement; Moir¨¦ Projection; noise smoothing; real-time image processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2013 Fifth International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4673-5652-7

Type

conf

DOI

10.1109/ICMTMA.2013.218

Filename

6493869