The illumination from the computer screen is randomly turned on and off to form a digital watermark in the video capture sequence. This watermark is used to determine that the video was captured at a particular point in time (the time when that sequence of light/dark was displayed form the computer screen).
Each object is recorded five times on each of three cameras. The cameras consist of the in-built Microsoft LifeCam on the Microsoft Surface Pro 2 tablet, a Logitech Pro 5000 webcam, and a Logitech Pro 9000 webcam.
Objects are also recorded in each of six different environments, as outlined in the Download section. This results in 300 soft toy videos, 75 paper face videos, and 75 live face videos for each environment.
Each video consists of the following:
Images are captured using an application that was developed on Ubuntu Linux 13.10 and OpenCV 2.4.9 running on a VMware Player 6.0.4 virtual machine. The VM is hosted by a Microsoft Surface Pro 2 tablet running Windows 8.1 Pro. Individual frames are saved using the DIVX codec, with resolution 640x480@30fps (the actual frame rate varies, as the webcam driver adjusts based upon current lighting conditions, however this will not affect any results).
For example, for the illumination sequence "Dark Light Light Light Dark Dark Light", the binary representation is 0111001, producing a decimal result of 57. Note that the actual values will be a maximum of 231.
@inproceedings{Smith_ISBA_2015, author = {Smith, Daniel F. and Wiliem, Arnold and Lovell, Brian C.}, title = {Binary Watermarks: A Practical Method to Address Face Recognition Replay Attacks on Consumer Mobile Devices}, booktitle = {IEEE International Conference on Identity, Security and Behavior Analysis (ISBA)}, publisher = {IEEE}, year = {2015}, type = {Conference Proceedings} }
Environment | Download Size | Filename | Description |
---|---|---|---|
Dark | 212 Mbytes | FRAUD2-Dark.zip | Darkened room |
Office | 168 Mbytes | FRAUD2-Office.zip | Indoor office with typical fluorescent lighting |
Natural | 203 Mbytes | FRAUD2-Natural.zip | Indoor office with lighting turned off, illuminated only by natural sunlight from windows |
Cloud | 356 Mbytes | FRAUD2-Cloud.zip | Outdoor environment under 100% cloud cover |
Shade | 581 Mbytes | FRAUD2-Shade.zip | Outdoor environment (no clouds), under 100% shade, but open to the sky |
Sunlight | 538 Mbytes | FRAUD2-Sunlight.zip | Outdoor environment fully illuminated by 100% direct sunlight |
Last updated: 06-Feb-2015