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What is FacePix(30)?

FacePix(30) is a face image database created at the Center for Cognitive Ubiquitous Computing (CUbiC) at Arizona State University, and made available free of charge to the worldwide research community. It contains face images of 30 people. There are 3 sets of face images for each of these 30 people (each set consisting of a spectrum of 181 images) where each image corresponds to a rotational interval of 1 degree, across a spectrum of 180 degrees, as follows:

• Figure 1 shows 19 sample images taken from Set 1, which contains 181 color face images that collectively represent a spectrum of pose angles. These images were captured with a moving video camera, using two stationary diffuse light sources that simulate ambient light. The face images in this set contain very little shadowing. Pose angle variations vary across a range from +90 degrees to –90 degrees, where +90 degrees represents a left profile view, 0 degrees represents a frontal view, and –90 degrees represents a right profile view.
• Figure 2 shows 19 sample images taken from Set 2, which contains 181 color frontal face images that collectively represent a spectrum of illumination angles. These images were captured with a stationary video camera that captures a sequence of frontal views, while a spotlight rotates around the front of the person. The spotlight illumination angles vary across a range from +90 degrees to –90 degrees, where +90 degrees represents a spotlight position that illuminates the right profile of the face, 0 degrees represents a spotlight position that illuminates the front of the face, and –90 degrees represents a spotlight position that illuminates the left profile of the face. This spotlight illumination was combined with two stationary diffuse light sources that simulate ambient light. As a result, the face images in this set contain soft shadowing.
• Figure 3 shows 19 sample images taken from Set 2, which is similar to Set 2, except that the spotlight illumination was not supplemented with any ambient light. As a result, the face images in this set contain harsh shadowing.

Figure 1: A sample of Set 1, with images shown for 10 degree increments.

(these images need to be spread out to fill the whole width)

+90°	+80°	+70°	+60°	+50°
+40°	+30°	+20°	+10°	0°
-10°	-20°	-30°	-40°	-50°
-60°	-70°	-80°	-90°

Figure 2: A sample of Set 2, with images shown for 10 degree increments.

+90°	+80°	+70°	+60°	+50°
+40°	+30°	+20°	+10°	0°
-10°	-20°	-30°	-40°	-50°
-60°	-70°	-80°	-90°

Figure 3: A sample of Set 3, with images shown for 10 degree increments.

+90°	+80°	+70°	+60°	+50°
+40°	+30°	+20°	+10°	0°
-10°	-20°	-30°	-40°	-50°
-60°	-70°	-80°	-90°

Thus, the entire FacePix(30) database consists of 16290 images (30 people x 3 sets x 181 images per set). Each face image is 128 pixels wide and 128 pixels high. The images have been normalized such that the eyes are centered on the 57th row of pixels from the top, and the mouth is centered on the 87th row of pixels.