Research on Image Resolution in Ultrasonic Imaging Inspection of Welding Defect

Author

Guangzhi, Dai ; Tiequn, Chen ; Jiaxiang, Xue

Author_Institution

South China Univ. of Technol., Guangzhou

fYear

2007

Abstract

The resolution problem of welding seam ultrasonic imaging system is studied in this paper, a triple-stage stepwise solutions is proposed, the measured ultrasonic signal is processed by super-resolution algorithm based on wavelet transform, signal processing result shows: the method is feasible to improve image quality of ultrasound imaging equipment and enhances its ability to identify subtle defects in welding seam. Moreover, the algorithms is under further improving and enhancing in ultrasonic image.

Keywords

image resolution; production engineering computing; ultrasonic imaging; wavelet transforms; welding; image resolution; super-resolution algorithm; triple-stage stepwise solutions; ultrasonic imaging inspection; wavelet transform; welding defect; welding seam ultrasonic imaging system; Image quality; Image resolution; Inspection; Signal processing; Signal processing algorithms; Signal resolution; Ultrasonic imaging; Ultrasonic variables measurement; Wavelet transforms; Welding; Wavelet Transformation; super-resolution; ultrasonic imaging; welding inspection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-1136-8

Electronic_ISBN

978-1-4244-1136-8

Type

conf

DOI

10.1109/ICEMI.2007.4350843

Filename

4350843