Efficient height measurement method of surveillance camera image.
As surveillance cameras are increasingly installed, their films are often submitted as evidence of crime, but very scant detailed information such as features and clothes is obtained due to the limited camera performance. Height, however, is relatively not significantly influenced by the camera performance. This paper studied the height measurement method using images from a CCTV. The information on the height was obtained via photogrammetry, including the reference points in the photographed area and the calculation of the relationship between a 3D space and a 2D image through linear and nonlinear calibration. Using this correlation, this paper suggested the height measurement method, which projects a 3D virtual ruler onto the image. This method has been proven to offer more stable values within the range of data convergence than those of other existing methods.
Lee
Joong
J
Section of Image Analysis, Department of Forensic Medicine, National Institute of Scientific Investigation, #331-1 Shinwol 7-Dong, Yangcheon-Ku, Seoul 158-707, Republic of Korea. ljfirst@nisi.go.kr
Lee
Eung-Dae
ED
Tark
Hyun-Oh
HO
Hwang
Jin-Woo
JW
Yoon
Do-Young
DY
D001827:Body Height; D002138:Calibration; D005554:Forensic Medicine; D006801:Humans; D008954:Models, Biological; D010780:Photogrammetry; D010781:Photography / Q000295:instrumentation*