"A video based Vehicle Fingerprinting Algorithm for Image to Image Vehicle Correlation"

Many license plate recognition system applications require the correlation of a newly acquired vehicle image with a vehicle image that had been acquired at an earlier time and place. This pertains specifically to confirming vehicle identification at the exit of a closed parking lot.

TDS has worked to develop a vehicle fingerprinting technique to generate a unique set of data that can be used to identify a vehicle.

The TDS vehicleprint matching system provides a quick and efficient method for obtaining a video vehicleprint of a vehicle (similar to a fingerprint representation) from a high resolution image of the front or rear of a vehicle. The VIMS is a standalone application that runs under the either the Linux or Windows operating systems. In a typical operation the TDS server processes an incoming images to generate a vehicleprint. The correlation engine then attempts to correlate the vehicleprint.

The vehicleprint application can also be used in a real time system to provide image recognition (vehicleprint) for entry into a vehicle database. This is useful in situations where the vehicleprints of vehicles entering a parking lot must be immediately available for further processing upon vehicle exit.

Key Features/Benefits Applications The accuracy of the LPR process is directly related to the pixel density of the image and the noise characteristics of the camera. The system works well with the 2 and 5 megapixel camera systems that are provided by TDS as part of its image capture systems.