The application research of image correction in water mist measurement

Author

Li, Sen ; Ma, Xingming ; Zhao, Lanming ; Ni, Jiadi ; Fu, Jiajia ; Qin, Jun

Author_Institution

State Key Lab. of Fire Sci., USTC, Hefei, China

fYear

2011

fDate

24-26 June 2011

Firstpage

4576

Lastpage

4579

Abstract

Among the measurement methods of the water mist field, DPIV is commonly used. But considering the scattering effect of water-drops, the camera must keep a tilt angle with the laser, so the image of the water mist should be corrected. With the ERDAS polynomial geometric correction function, correcting the 1cm×1cm grid to obtain the polynomial, then use the polynomial to correct the water mist image. According to the revised water mist image, rebuild the velocity field, and obtain the actual mean velocity and the actual mean partical size of the water mist.

Keywords

drops; flow visualisation; image processing; laser velocimetry; physics computing; polynomials; water; DPIV; ERDAS polynomial geometric correction function; camera; image correction; laser; mean velocity; partical size; size 1 cm; velocity field; water drops; water mist measurement; Adaptive optics; Cameras; Charge coupled devices; Forestry; Measurement by laser beam; Optical variables measurement; Polynomials; DPIV; ERDAS; image correction; standard grid; water mist;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5965334

Filename

5965334