Automatic License Plate Recognition (ALPR/ANPR) Visible Specturm Cameras- InterTest
Automatic License Plate Recognition (ALPR/ANPR) Visible Specturm Cameras- InterTest

Automatic License Plate Recognition (ALPR/ANPR)

Automatic License Plate Recognition is a growing industry that uses both Infrared and Visible spectrum cameras to capture and process license plates with the use of artificial intelligence. Infrared cameras are required so that during nighttime scenes the optical character recognition gets useful images.

Automatic License Plate Recognition (ALPR/ANPR)

Global Shutter cameras have made the capture of license plates effective at higher speeds, allowing for better capture rates. Global Shutter allows the entire sensor to be read out simultaneously which eliminates the problem of rolling shutter artifacts.  

A rolling shutter is a type of image capture in cameras that records the frame line by line on an image sensor instead of capturing the entire frame all at once. This slight lag can create some unintended distortions if you're filming fast-moving subjects or panning your video camera across a scene.  

The use of Zoom Block cameras has allowed for a single camera to do the work of both the infrared and visible camera pair, with the Automatic ICR (infrared cut filter) feature, the camera can be tuned to know when to remove the filter that blocks IR during daytime scenes to produce more human recognizable images.

Intertest has provided both component level and fully assembled cameras for our customers in the ALPR industry for two decades.

 

Automatic License Plate Recognition (ALPR/ANPR)

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Sony FCB-EV9520L 30x LVDS Block Camera - InterTest, Inc.
Sony Sony FCB-EV9520L 30x LVDS Block Camera
KT&C ATC-HZ5540T-LP 40x Zoom Global Shutter Block Camera - InterTest, Inc.
KT&C KT&C ATC-HZ5540T-LP 40x Zoom Global Shutter Block Camera

The Dirt on License Plate Recognition

Learn about how InterTest cameras are being used.

ALPR/ANPR Article