VideoCAD 7 offers simplest tool - visualisation of spatial resolution.
Visualization of the Spatial resolution - a relatively simple and obvious, but less rigorous tool. In contrast to the calculation of person detection, identification, license plate reading areas, it does not separate one area, considering limitations of resolution, range of heights and angle. It does not take into account camera tilt angle when calculating the size of a person in the frame.
This tool only divides the view area into regions based on sequentially changing values of a specified criterion. In many practical cases this is enough. But if you want a more rigorous calculation, you should use the calculation of person detection, identification, license plate reading areas.
View area of cameras can be divided into regions based on the following criteria:
- vertical spatial resolution (pixels/meters, pixels/foot);
- vertical field of view size (meter, foot);
- vertical number of pixels covered by an object of the specified height (meter, foot);
- the part of the frame height covered by an object of the specified height (meter, foot).
![Image](http://cctvcad.com/images/spatialresvert.png)