How to configure a SAFIRE 2nd GENERATION counting chamber
It must be taken into account that all the values that we will modify will depend on the installation itself. In particular we talk about light exposure, height and angle, which are data that should not be ignored, as they are important points for the system to work properly and do well the people counting
First we enter the configuration of the camera from the web environment of the camera.
Then we will enter the light exposure part. This value will vary depending on the situation of the camera, that is, if there are windows where sunlight enters, we must take into account that we will not have the same light at 9:00 in the morning than at 17:30 in the afternoon.
In the configuration example we will see an approximate average that will have to change depending on the scene where the camera is mounted and the light received.
If the device is located in a room without windows and with artificial light, you can keep 1/250 as an average value.
Next we will enter in the VCA section and we will enable the people counting and then we will be able to configure the counting area.
Once the people counting is enabled, go to the people counting section and activate the people counting filter and set the height calibration to manual.
In the calibration section we will put by hand the REAL height of the camera measuring from the ground to the camera lens; at that very moment a red measurement box will appear which will be immovable, and that section will be where the people will pass through to count them.
IMPORTANT: If we need to have a bigger area to cover (because the door is bigger or the passage is bigger than the area to count), we can't falsify heights in the calibration to have more red square opening, because the camera will stop counting correctly. The only solution for these cases would be to install more height to the camera and calibrate it again with the real height from the ground to the target; if there were no means to perform this step, we would have to put two counting cameras or as many as we need to cover the whole area.
We must take into account in these cases that we will have to help the cameras by putting means so that the passage is controlled and people do not cross from one camera to the other, since we would not have a real counter and we could have false counts in the cameras.
Once we have calibrated the camera according to the height, we will draw the counting areas.
First we delimit the blue area inside the red one. Keep in mind that the two areas can NOT touch, because the web component will give us a parameter error when saving the changes.
Once the counting area is drawn, we will adjust the areas A and B according to the direction of the people in motion, so that one of them (for example area A) is the entrance area while the other one is the exit area. In other words, people crossing from A to B are considered to be entering while those moving from B to A are considered to be exiting.
As shown in the example image below, it is ideal to try to leave spaces between the areas and not to join the lines, as the team has to analyse the passage of people between areas.
Once everything is finished, we would have the camera ready to count people, additionally we could go into advanced configuration and apply height filters, being able to filter counts by size of people or children if necessary. Keep in mind that according to the example shown in the image, people measuring less than 120 cm will not be counted (value certified by the manufacturer).
Finally, if we need to reset the counters to zero for testing purposes, we can go to the overlay and capture section and press the manual reset button in theOSD reset menu, and the inputs and outputs will be reset to zero.
We can also program a schedule that would be linked to the schedule of the establishment to reset the counters to zero once there is no one in the establishment.