Available Technology

Digital Camera Fingerprinting

Building a Digital Camera Fingerprint from Cropped or Corrupted Images

Given a collection of digital images, this technology performs digital camera fingerprinting without needing access to the source camera. Every camera sensor is unique and leaves a noise pattern in images that can be extracted and analyzed. By calculating the noise residual of a digital image, this technology generates a fingerprint for the camera, and then determines whether an image is associated to that fingerprint or not. This method can perform fingerprinting from cropped or corrupted images—a unique feature compared to similar fingerprinting methods. Using a smarter sequence of computations, it also provides better identification than existing methods and reduces the number of calculations needed to complete the task.

 

Abstract: 

Click to view PDFs of these patents on the US Patent and Trademark Office website: Patent #9,525,866

 

applications: 
  • Digital forensics
  • Image analysis
  • Identity verification
  • Law enforcement
Patent Number: 
9,525,866
Patent Issue Date: 
December 20, 2016
Email: 
tech_transfer@nsa.gov
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