VERIFICATION OF IMAGES CAPTURED USING A TIMESTAMP DECODED FROM ILLUMINATION FROM A MODULATED LIGHT SOURCE

摘要

A device comprising: an input for receiving images captured by a camera, of an environment illuminated by light from a light source; an image processing module; and a verification module. The image processing module is configured to process one or more of the images to decode a timestamp modulated into the light, and to output an indication of the decoded timestamp. The verification module is arranged to receive the indication of the decoded timestamp output by the image processing module, and based thereon to perform an at least partially automated verification of a time at which the one or more images were captured.

主权项

1. A device comprising:
an input for receiving images captured by a camera, of an environment illuminated by light from a visible light source; an image processing module configured to process one or more of the images to decode a timestamp modulated into said light, and to output an indication of the decoded timestamp; and a verification module arranged to receive the indication of the decoded timestamp output by the image processing module, and based thereon to perform an at least partially automated verification of a time at which the one or more images were captured by comparing the timestamp as currently decoded from said image with a previously determined version of the timestamp; wherein the image processing module is further configured to apply a facial recognition and/or other image recognition algorithm to at least one of the captured images, and to thereby identify a person or persons appearing in the at least one image.