Virtual License Plate Input for Verification Accuracy
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Solution Overview
Problem
Existing license plate recognition systems face challenges in accurately recognizing license plates under poor conditions, leading to a significant number of misrecognized plates, which requires manual visual identification and cumbersome text input for verification.
Innovation Solution
A device and method that extracts characteristic information from a vehicle image to provide user-friendly input keypads, allowing users to easily input license plate numbers by displaying a virtual license plate with a background image, and includes a sound provision unit for text-to-speech functionality to enhance input accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual text input method using keyboard is used for license plate verification, then input accuracy can be achieved, but input time and operational complexity increase significantly
Solution Approach 1:
The system creates a virtual license plate that copies the visual appearance and structure of the actual license plate from the captured image. This virtual plate is then overlaid on the image, allowing users to verify and input license plate information by interacting with the copied visual representation rather than typing from scratch, thus maintaining accuracy while reducing input time
Solution Approach 2:
The virtual license plate serves as an intermediary between the captured image and the final data input. It mediates the verification process by providing a visual template that guides user input, reducing the cognitive load and time required for accurate data entry compared to direct keyboard input
2Measurement precision
If manual visual identification of captured images is performed to identify misrecognized license plates, then identification accuracy can be achieved, but operational efficiency decreases due to checking large numbers of images one by one
Solution Approach 1:
By generating a virtual license plate that replicates the visual characteristics of the captured plate, the system enables rapid visual verification. Users can quickly confirm whether the recognized plate matches the visual copy, significantly speeding up the identification process compared to examining each captured image in detail while maintaining high identification accuracy
Solution Approach 2:
The system performs preliminary processing by creating the virtual license plate and overlaying it on the captured image before user verification. This preliminary action prepares the data in an optimized format for quick visual comparison, reducing the time users need to spend on verification while maintaining accuracy
3Ease of operation
If traditional keyboard input method is used for license plate number entry, then complete input capability is achieved, but ease of operation deteriorates due to cumbersome typing process
Solution Approach 1:
The virtual license plate copies the exact layout, character positions, and visual structure of the actual license plate. Users can input data by referencing this copied template, which is visually displayed, making the input process more intuitive and convenient while reducing the time required compared to traditional keyboard entry without visual guidance
Data Source
AI summary
A license plate number input device comprises: a characteristic information extraction unit for extracting characteristic information on a license plate from a vehicle image; a keypad provision unit for providing at least one input keypad on the basis of the extracted characteristic information; and an out unit for displaying input information input by a user through the provided input keypad.