Paper
25 March 2023 Vehicle entry or exit detection in each parking slot from outdoor surveillance camera images
Author Affiliations +
Proceedings Volume 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023; 125921S (2023) https://doi.org/10.1117/12.2666822
Event: International Workshop on Advanced Imaging Technology (IWAIT) 2023, 2023, Jeju, Korea, Republic of
Abstract
This paper proposes a method of detecting entry and exit of vehicles in each parking slot using a surveillance camera placed outdoors. To specify the respective parking slot areas in a surveillance camera image, polygonal windows are set by projecting rectangular boxes, each of which surrounds the typical body of a vehicle parked in each slot, onto the image based on the perspective projection matrix associated with the surveillance camera. The projection matrix is semi-automatically calculated by providing 3D coordinates to a small number of points picked up from the surveillance camera image. Then, a joint intensity histogram between a pair of images taken by the same camera with a certain time interval is calculated in each window. By analyzing the distribution of the histogram, entry and exit of vehicles in the slot can be robustly detected without being affected by lighting change during the time interval.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Koki Hoshi, Toshiya Wakana, Yasuyo Kita, Ichiro Matsuda, and Susumu Itoh "Vehicle entry or exit detection in each parking slot from outdoor surveillance camera images", Proc. SPIE 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023, 125921S (25 March 2023); https://doi.org/10.1117/12.2666822
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KEYWORDS
Windows

Surveillance

Cameras

Histograms

Light sources and illumination

3D image processing

Principal component analysis

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