License Plate Cameras
Use any of these analog CCTV cameras to capture the license plate on a vehicle as it enters or exits an area. Keep the following in mind when choosing an LPR (License Plate Recognition) camera:
- - If the area is not well lit, you should choose an IR camera. If the camera does not have built-in IR illuminators, you should select a camera with ICR (true day/night) and use external IR illuminators.
- - If the objective is to capture a front license plate at night, you should enable HLM (head-light masking) mode from the camera's OSD or On-screen display.
- - In daylight conditions, it is ideal to have WDR (wide dynamic range) to get a balanced exposure between bright areas and dark, shady areas.
- - Consider the speed at which the target vehicle is traveling. Set the appropriate frame rate on your DVR to capture a clear image. Ensure the camera is rated for higher speeds if you are looking to capture a street or highway.
- - Consider the distance from the camera as the vehicle enters the camera's view. If the distance is more than 25 feet away, consider a camera with a varifocal lens and a longer focal length, e.g. 5-50mm or 5-100mm.