One of the most common questions we hear from our clients is: “How can I improve the accuracy of license plate recognition in my parking facility?”. En At Innova, we have a clear answer: white light is essential for optimizing the license plate recognition process and achieving high accuracy rates. After years of experience implementing intelligent LPR systems, our cameras, combined with white light and color-capture technology, have demonstrated an improvement in accuracy by 1% to 3%.
We understand that false license plate readings in automatic recognition systems (ALPR) create numerous problems, especially in ticketless parking facilities. These issues often lead to increased operational costs, payment management errors, incorrect barrier openings, or vehicle flow delays. Typically, these problems stem from damaged, dirty, or poorly illuminated plates.
Reliability in LPR for Parking Facilities
Our experience shows that integrating white light into LPR systems significantly enhances recognition reliability, even in challenging conditions. For instance, systems with white illumination (>30 lux) can increase the accuracy of damaged plates by 0.5% to 1%. When intensity exceeds 100 lux and is combined with color capture, accuracy can improve up to 3%.
White light, combined with advanced AI and technologies like OCR5, forms the ideal solution for maximizing accuracy, even for deteriorated plates. While white light excels at capturing detailed images, alternatives like infrared (IR) light are also effective in low-light conditions. Combining both technologies through dual systems (color + IR) provides a robust and adaptable solution.
Advantages of White Light in LPR Systems
- Enhanced Accuracy in Adverse Conditions: White light delivers uniform illumination that increases dynamic range, contrast, and clarity for damaged or dirty plates, improving AI and OCR5 algorithm performance.
- Color Detail Capture: Enables recording crucial details, such as non-reflective characters and backgrounds, essential for reducing recognition errors.
- Reliability Across Conditions: Particularly useful in low-light environments, such as underground parking facilities or nighttime operations, outperforming exclusively IR-based solutions.
- Reduction in Incidents: Higher accuracy prevents incorrect rejections, delayed access, and erroneous barrier openings, improving user experience and reducing manual intervention costs.
White Light: Improving LPR Accuracy with Innova
At Innova, we provide advanced technological solutions to ensure high accuracy rates. From using white light to dual-camera systems like our TwinPlate solution, we tailor technology to meet our clients’ specific needs. The combination of IR and white light ensures optimal captures of both the front and rear of vehicles, even compensating for worn-out plates.
Our ALPR systems not only enhance operational efficiency by reducing incidents and costs but also ensure a seamless and satisfying experience for users. Whether day or night, our solutions are designed to deliver reliability under any condition.
Looking to optimize the accuracy of your parking facility? We’re your best technological partner! Contact us, and let’s take your project to the next level.
