How a CCTV People Counting System Works
15 April 2016
Tests show video people counting achieves over 98% accuracy. This is how it's done.
- Overhead closed-circuit television (CCTV) camera tracks people's movements.
- The camera connects to a people counter which accurately detects and records how many people pass through the counting zone.
- The people counters stream video and data to a central PC over Wi-Fi, Internet, IP, Ethernet, RS485 or RS232.
- Counts can be combined with live sales data in a POS database, giving real-time sales conversion figures.
- Wide entrances and areas are handled by linking several cameras across the ceiling.
- People are counted as they cross through a zone of the picture and exit up, down, left or right depending on your settings.
- The embedded video server lets you view live video footage alongside the people counts, so you can accurately verify, and configure, the system over the internet from anywhere in the world.
- Once set up, counts alone can be sent over the network to save bandwidth.
- Replay counting videos for off-site commissioning
- Choose the time period over which counts are measured: every hour or every 5 minutes for example.
- Change settings in software to optimise the count accuracy, for each door if necessary, for example
- Deal with shadows and poor light
- Set for crowd counting
- Increase the sensitivity of the people detection
- Adjust for indoors and outdoors
Set-up screen for a Camera Counting System
The video above shows the set-up screen for an outdoor counting position.
The green lines show the counting zone: people are not counted until they cross both of these lines.
The Up and Down counts are shown beneath the video.
The coloured blobs on the yellow background show how the system is seeing the people. Should the system not be counting accurately during the set-up process, you can fine-tune the settings: making adjustments for the typical size of the people in the picture for example.
Video analytics means the computerised analysis of video streams, particularly from CCTV cameras. A Video Turnstile counting unit connects to a CCTV camera and performs real-time analysis of the video for immediate detection and counting of people. During setup, video and analysis can be streamed to a central PC where the settings and counts can be seen—as in the video above.
Our image processing algorithms are over 98% effective at identifying people entering and leaving counting zones.
The Video Turnstile people counters are independent of the video cameras.
There are two types of Video Turnstile unit: one that counts people which is called a VT, and one that saves the counts, which is called a Logger. Each counting system needs at least one Logger. The Logger can save counts from up to 16 VTs. Each camera connects to a VT. The system is thus infinitely scaleable. If you need more counting areas just add more cameras and VTs. At regular intervals the Loggers transmit their counts to the central computer.
Lifetime Technical Support
We want your system to be reliable and accurate. We are happy to help with setup and configuration, and provide lifetime technical support.