Content

Pose and Illumination Images

To systematically capture images with varying poses and illuminations we used a system of 15 cameras and 18 flashes connected to a set of Linux PCs. Thirteen cameras were located at head height, spaced at 15° intervals, and two additional cameras were located above the subject, simulating a typical surveillance view. The following figure illustrates the location of the cameras.

The following figure shows all 15 camera views with frontal flash illumination.

High Resolution Images

We recorded frontal images using a Canon EOS 10D (6.3-megapixel CMOS camera) with a Macro Ring Lite MR-14X ring flash. Subjects were seated in front of a blue background in close proximity of the camera. The resulting images are 3072 x 2048 in size with the inter-pupil distance of the subjects typically exceeding 400 pixels.

Session 1

Neutral

Session 1

Smile

Session 2

Session 3

Session 4

During a recording session 20 images were captured for each camera: one image without any flash illumination, 18 images with each flash firing individually, and then another image without any flash. Taken across all cameras a total of 300 images was captured within 0.7 seconds. Below we show all 20 illumination images in frontal view.

Facial Expressions

In each of the four recording sessions subjects were instructed to display different facial expressions. The figure below shows images of the expressions captured in each session.

Neutral

Surprise

Squint

Smile

Disgust

Scream

Neutral

Smile