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Face Processing in Social Networking Services NTIA Privacy Multistakeholder Process: Commercial Facial Recognition Technology March 25, 2014 Olga Raskin Manager, Identity Research Copyright © 2014 IBG, A Novetta Solutions Company
Copyright © 2014 IBG, A Novetta Solutions Company – 2 IBG has conducted independent biometric testing since 1996 Hundreds of thousands of man-hours in biometric research, design, and integration (e.g. fingerprint, face, iris recognition) Expertise in emerging modalities, sensors, and software Cutting-edge expertise in virtual, online, and electronic identity technologies, concepts, and platforms Extensive commercial and government customer base IBG at a Glance
Copyright © 2014 IBG, A Novetta Solutions Company – 3 IBG evaluates online face processing technologies, capabilities, and performance While online face processing is the largest commercial use of biometrics, its performance and capabilities are not well-understood Background
Copyright © 2014 IBG, A Novetta Solutions Company – 4 Face Processing Functions Detection –Automated location of one or more faces in an image Cropping –Extraction and presentation of an image’s facial region Recognition –Search of a face image against enrolled face images to identify potential matches Grouping –Automated organization of face images into sets based on appearance similarity Tagging –Automated or facilitated process of assigning names to faces in online photos
Copyright © 2014 IBG, A Novetta Solutions Company – 5 Face Processing Myth: Image Quality Myth Face recognition requires high-quality images Reality SNS face processing systems can detect and match low-quality faces Profiles, faces with low inter-ocular distance, bad lighting Faces acquired through different classes of camera Future Matching and detection technologies should continue to improve (though other factors are involved)
Copyright © 2014 IBG, A Novetta Solutions Company – 6 Face Processing Myth: Online Face Searches Myth You can conduct a “global” face search against the whole Internet Reality No, you cannot Most online face images are not searchable (private, not shared) Searches are within one’s contacts / friends Sites that offer 1:N searches against public images lack identity data Future Facebook, Google have shown no interest in enabling open searches Other entities are surely saving every public and/or accessible face image for future use
Copyright © 2014 IBG, A Novetta Solutions Company – 7 Relevant Face Processing Technologies Facebook –By far the largest “consumer” usage of biometrics –Rich social graph available to deliver improved tag suggestions Google+ –Google's SNS, for which face processing was activated in December 2011 –Potential for expansion of face processing to services such as search, Android, location, and YouTube PittPatt –Founded in 2004 by members of the Carnegie Mellon University Robotics Institute –Acquired by Google in 2011; no longer in development –Used by government agencies to process low-quality images
Copyright © 2014 IBG, A Novetta Solutions Company – 8 Milestones in Online Face Processing
Copyright © 2014 IBG, A Novetta Solutions Company – 9 Dataset Processing IBG created software that automates photo submission and results parsing for and Facebook / Google+ –Otherwise the process is manual, burdensome, and error-prone SOCIAL-ID: photos collected by IBG as well as from public sources SOCIAL-GT: customized testing software that interacts with online face processing sites and services; used by analysts for adjudication
Copyright © 2014 IBG, A Novetta Solutions Company – 10 Face Grouping Performance Correct grouping rates are similar for the three services PittPatt has a slightly lower error rate than Facebook or Google+ For datasets with a pronounced primary identity, approximately 19 out of 20 groupings will be correct
Copyright © 2014 IBG, A Novetta Solutions Company – 11 Face Grouping Performance Google+ correctly groups more Primary Subject faces than PittPatt and Facebook, respectively, while incorrectly grouping only more faces
Copyright © 2014 IBG, A Novetta Solutions Company – 12 Conclusions Searches are predominantly in-network Online face processing services can achieve correct grouping rates above 90% on challenging images –Not reliant on frontal poses, neutral expressions, even illumination, etc. Online face processing is improving –Algorithms may be tuned based on user input (e.g. tagging/grouping confirmations) –Possible enhancements to core face processing technologies
Copyright © 2014 IBG, A Novetta Solutions Company – 13 Contact Information Olga Raskin IBG, A Novetta Solutions Company
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