Not only Pixel Density. CCTV design with VideoCAD. Factors of camera effectiveness in CCTV systems

This tutorial video is based on VideoCAD8. The current version of VideoCAD12 has many more features https://www.cctvcad.com/videocad_help/ We consider the Pixel density and other factors limiting camera capabiluities in CCTV systems: the need of full-resolution images, influence of scene complexity, principles of pixel density distribution in space, dependence on the height, influence of lens distortion, the dependence on the angle at which the target gets in the frame, scene illumination, contrast, noise, lens resolution, loss of resolution during analog transmission, compression, distortions due to movement of the target or the camera itself, depth of field, limited visibility.