Difference Between Infrared People Counter And Visual People Counter (People Counting Camera)

There are significant differences between  Infrared people counter this  Visual people counter (people counting camera) From the aspects of appearance, technology, detection, accuracy, etc.

First of all, from the appearance,  infrared human reflex The structure is relatively simple, with only one transmitter and receiver, and the size is relatively small, making it easy to install and move. Usually installed on both sides of walls or objects where pedestrians pass. A visual people counter (people counting camera) usually consists of one or more cameras, an image processing unit and a display, and is relatively large in size. In order to obtain sufficient vision, the installation location is usually selected to be in a higher position. Therefore, installing an infrared counter is much simpler than installing an infrared counter  Visual people counter (people counting camera).

Secondly, technically speaking, infrared people counters mainly use infrared sensors to detect occlusions of human bodies or objects, and generate electrical signals through photoelectric conversion for counting. Simply put, a count is considered when the infrared signal is blocked and the obstruction is removed, and it is easy to treat non-artificial occlusions as a count. The visual people counter (people counting camera) relies on computer vision technology and image processing algorithms to capture images through cameras and use algorithms for identification and tracking to achieve counting functions. Visual people counters (people counting cameras) can attempt to count objects that resemble human bodies, greatly reducing errors.

In terms of detection, infrared people counters can only detect occlusions when people or objects pass by. For other information such as direction and number of companions, the judgment of the infrared counter is relatively vague. Visual people counters (people counting cameras) can obtain richer information, such as the direction and number of pedestrians, and can even track and count specific targets through technologies such as facial recognition.

Finally, in terms of accuracy, the accuracy of infrared people counting is limited by factors such as the sensing range and sensitivity of the infrared sensor and changes in ambient light. Usually, when we install the device at the door of the store, it will be exposed to sunlight and will be blocked by infrared rays when the door is opened and closed, thus reducing the accuracy of the counter. The accuracy of a visual people counter (people counting camera) mainly depends on the accuracy and calculation speed of the image processing algorithm, and under ideal circumstances a higher accuracy can be achieved.

Overall, both infrared people counters and visual people counters (people counting cameras) have their pros and cons.

Infrared people counting has a simple structure, high stability, and low cost, but has low accuracy. Visual people counters (people counting cameras) have higher accuracy, but have complex structures and higher costs. Therefore, when choosing which counter to use, it needs to be determined based on actual needs and application scenarios.