Installation Guide - People Counting Survey the installation environment It is essential to get familiar with the environment where the cameras should be installed. Each element, such as door’s width, ceiling’s height, passageway, should be taken into consideration as variable which may affect the object counting procedure. Important things to be noticed before installation: Door width Ceiling height Distance between object Camera Lens type and View Angle 307.00 175.00 Fig A – Sample installation using single camera Fig B – Sample installation using two cameras 257.00 175.00 Fig C – Sample installation using three cameras to cover larger area with EAS detector Factor that might affect counting procedure: Sunlight Lightning Emergency exit sign Interior decoration Pedestrian Advantages using GeoVision DVR system Cost effectiveness: Integrated people counting application Ease of usage: Unified management interface to use Space saving: Single PC to accomplish multiple tasks Implementation: Customer behavior analysis, Personnel Management, Marketing Strategy, Pedestrian Flow Counting, etc Test the installation environment Based on actual scenario determine the required camera lens type and view angle, perform the necessary cabling and system setup procedure. Afterward conduct a real counting process for later verification and fine tuning process for better accuracy. First verification Due to insufficient sample acquired during setup process, it is recommended to conduct the verification on a usual business activity day in the real world. The counting process is done on both sides, manually by observer in a specific time range whose result is compared later with the information acquired by the DVR. After achieving the error percentage, make a system fine tuning. People Counting at CPS Date Time Camera Observer System Error Note th June 10 Single Day Cam1.2.3 223 246 -10% th June 11 Single Day Cam1.2.3 215 236 -10% June 12th Single Day Cam1.2.3 184 204 -11% People Counting at WBS Date Time Camera Observer System Error Note th June 10 Single Day Cam1.2 479 415 13% th June 11 Single Day Cam1.2 546 508 7% June 12th Single Day Cam1.2 431 379 12% People Counting at BZS Date Time Camera Observer System Error Note th June 8 Single Day Cam1 428 368 14% June 11th Single Day Cam1 326 259 21% Second verification If the error percentage fells behind acceptance, please conduct the necessary fine tuning and perform the same verification process as the first time. People Counting at BZS Date Time Camera Observer System Error Note th June 17 Single Day Cam1 174 182 -5% June 18th Single Day Cam1 38 36 5% People Counting at WBS Date Time Camera Observer System Error Note th June 18 Single Day Cam1,2 356 366 -3% June 19th Single Day Cam1,2 218 215 1% Final verification If the result is acceptable otherwise repeat the fine tuning process People counting have always been difficult to prove its reliability in the past. It varies from day to day, high season to low season; only performing random verification like this can get a real accuracy in the real world.
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