DELAYED VEHICLE IDENTIFICATION FOR PRIVACY ENFORCEMENT

摘要

A method for recognition of an identifier such as a license plate includes storing first visual signatures, each extracted from a first image of a respective object, such as a vehicle, captured at a first location, and first information associated with the first captured image, such as a time stamp. A second visual signature is extracted from a second image of a second object captured at a second location and second information associated with the second captured image is acquired. A measure of similarity is computed between the second visual signature and at least some of the first visual signatures to identify a matching one. A test is performed, which is a function of the first and the second information associated with the matching signatures. Only when it is confirmed that the test has been met, identifier recognition is performed to identify the identifier of the second object.

主权项

1. A method for recognition of an identifier, comprising:
for each of a plurality of objects, storing a first visual signature, which has been extracted from at least a part of a first image of the object captured at a first location, and first information associated with the first captured image; computing a measure of similarity between a second visual signature and at least some of the first visual signatures to identify a matching one of the first visual signatures, based on the computed measure of similarity, the second visual signature having been extracted from at least a part of a second image of a second object captured at a second location, based on at least a part of the second image; retrieving the stored first information associated with the matching one of the first visual signatures and stored second information associated with the second captured image; performing a test which is a function of the retrieved stored first information and the stored second information; and providing for recognizing an identifier of the second object based on a captured image of the second object, when it is confirmed that the test has been met.