Gold Sponsors
Array Telepresence Logo   Human Productivity Lab Logo   Ashton Bentley Logo
Silver Sponsors
Bronze Sponsors
Telepresence Options Magazine

Latest Telepresence and Visual Collaboration News:
Full Article:

Camouflage from Computer Vision

January 6, 2012 | Hogan Keyser
CV_Dazzle_logo.jpg

by Adam Harvey via CVDazzle.com --

OpenCV Face Detection: Visualized from Adam Harvey on Vimeo.


Introduction
CV Dazzle(TM) is camouflage from computer vision (CV). It is a form of expressive interference that combines makeup and hair styling (or other modifications) with face-detection thwarting designs. The name is derived from a type of camouflage used during WWI, called Dazzle, which was used to break apart the gestalt-image of warships, making it hard to discern their directionality, size, and orientation. Likewise, the goal of CV Dazzle is to break apart the gestalt of a face, or object, and make it undetectable to computer vision algorithms, in particular face detection.

irina_3x3.jpg

Because face detection is the first step in automated facial recognition, CV Dazzle can be used in any environment where automated face recognition systems are in use, such as Google's Picasa, Flickr, or Facebook (see CV Dazzle vs PhotoTagger by Face.com).

Project Overview
This project began as a thesis proposal at the Interactive Telecommunications Program at New York University in the spring of 2010 with the primary objective of thwarting face detection under the guise of high-fashion aesthetics. While there are several obvious approaches to hiding from face detection, some of these can be dismissed. Sunglasses, for example, are a known occlusion which some algorithms account for. And, though functionally effective, wearing masks in public can be illegal. Hoods are popular and effective but make the wearer's intent to hide too obvious. As an alternative, this project explores ways of hiding in plain sight using ambiguously deceptive fashion.

comparison_sm.jpg
Objective

CV Dazzle opposes the mainstream push towards the widespread adoption of face recognition in order to protect privacy. As the usefulness and popularity of facial recognition grows in commerce and security (currently it's the fastest growing sector of biometrics ), so will the value of privacy. The objective of CV Dazzle is to adapt to our new environment and explore ways of communicating with machines to control our privacy in public.

fashion_camo.jpg

Design
There is a strong emphasis towards radical-neutrality. The designs used in the first several looks are inspired by both tribal paint and high-fashion aesthetics from the club scene in London. In fact, photos from both were incorporated into the testing algorithms. Surprisingly, many of the more eccentric looks did not fool the face detection algorithms.

facial_detection.jpg

To design the looks at left, software was developed that combines interactive drawing and genetic algorithms to detect vulnerabilities in the face detection process. By understanding how face-detection algorithms work, an anti-face can be constructed and used as a guide for creating makeup and hair-styling that foils the face detection process. As a result, your face becomes undetectable to machines yet retains some level of legibility to humans.

Future Work
CV Dazzle is a work in progress. As computer vision matures so will this project.










Add New Comment

Telepresence Options welcomes your comments! You may comment using your name and email (which will not be displayed), or you may connect with your Twitter, Facebook, Google+, or DISQUS account.