Abstract: Photographs can sometimes be altered or changed in order to create photographs which appear to be of a scene which never took place, or did not take place at the place and time when the photograph is purported to have been taken. One way of circumventing known systems to detect this sort of falsified image is to take a photograph of a printed altered image. The present invention is a method of detecting such “photographs of photographs” by comparing two photographs of the same seen taken at the same time, with different exposures.
September 18, 2018
Date of Patent:
June 23, 2020
Roy Azoulay, Benjamin Huston, Clinton Montague
Abstract: A system for cross verification of data captured by a consumer electronic device is disclosed. Primary data, for example, a photograph, is captured by a mobile capture device, metadata including the time and location of the capture is associated with the primary data. Environmental data, for example, pressure, temperature, visible WiFi networks, visible cell towers, is also measure by the mobile capture device. Other capture devices are identified in the vicinity and those other devices also measure environmental data. The measurements of environmental data can then be compared in order to calculate a confidence level in the position metadata associated with the primary data.