Efficient height measurement method of surveillance camera image
Related Experiment Video
Updated: Jul 9, 2026

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
Published on: August 12, 2021
Joong Lee1, Eung-Dae Lee, Hyun-Oh Tark
1Section 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
Abstract:
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.
Related Concept Videos
Differential Leveling
Application of Linearization and Approximation
Design Example: Maintaining Level of an Embankment
Electronic Distance Measuring Instruments
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
Methods of Obtaining Topography