Abstract: A traffic sensor includes an imaging unit that generates a recognition record by image recognition processing a captured image of a vehicle. The recognition record includes personal-identification data useable to identify the vehicle owner, and additional data not useable to identify the vehicle owner. The traffic sensor also includes an obfuscation unit that generates an obfuscated record from the recognition record by converting the personal-identification data into a unique-identifier. The obfuscated record includes the unique-identifier and the additional data. The traffic sensor further includes a transceiver configured to transmit the obfuscated record to a first off-site server without transmitting the recognition record to the first off-site server.

Abstract: A surveillance device includes an imaging unit configured generate full-quality image data from a captured image of a vehicle, an image filtering module that converts the full-quality image data to reduced-quality image data. The surveillance device also includes a subsector module that processes the reduced-quality image data to generate subsector data defining one or more sub sectors of the captured image, and an image processing module that identifies one or more specific vehicle characteristics within the one or more subsectors by applying image recognition processing on the full-quality image data only within the one or more subsectors. The reduced quality image data is insufficient for the image recognition processing to identify specific vehicle characteristics therefrom.