
circuitry The pixels are drawn using 0 18 micron design rules and are only 2 by 2 microns in size With this pixel size a ~1 square inch circuit will offer over 100 000 000 pixels Figure 9 Mesh connected CMOS photodiode sensors with X and Y super pixel peripheral control for foveal imaging readout not shown It is not necessary for the resolution control to be

a Original Zelda image 512 by 512 8bits pixel

Foveated Retina like CCD Sensor Size 1 x 1 sq mm

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High resolution video of the subjects knee joint is captured from several views by our foveated motion capture system The top two rows show synchronized video frames from two

is needed In the simulation an iterative algorithm was needed to form each super pixel and average the values from the original image The resulting image is seen below in figure 15 Figure 15 Example foveated image resulting from using the FOVIS architecture This style of foveation resulted in data compression by a factor of 2 3 The image shown in figure 15 may

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would be high Therefore one would expect the resolution fall off to be more rapid than in the first case Try viewing figure 3 from a distance of 1 inch press your nose to the screen Figure 5 Foveated test image at 2 5 cm viewing distance This degree of foveation resulted in image compression by a factor of 5 7 If one viewed the original image from a great distance

is equipped with a pair of mobile eyes and is capable of color binocular vision The stereoscopic view at the right is acquired by the animat as it gazes at a red fish in the distance The animat has foveated vision Its retinas have a 64x64 high acuity fovea surrounded by three annular peripheral regions with progressively diminishing resolution hence the increasing

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Foveated Active Vision Demo Videre article introducing a new paradigm for vision research involving the development of active perception systems for realistic artificial animals inhabiting physics based virtual worlds

fMRI activation during reaching to foveated location mIPS or peripheral location mIPS + POJ Prado et al 2005 Neuron Wide field retinotopy defines human cortical visual area V6 Pitzalis et al 2006 Journal of Neuroscience

larger pixels at larger deviations from the foveal center Try viewing the image as before 10 inch distance focus on the center and seeing if you can distinguish the super pixels Figure 7 Foveated test image at 0 25 meter viewing distance super pixel algorithm This style of foveation resulted in a compression by a factor of 1 85 Considerations for Implementation

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pyramid each upblurred to the same resolution as the original image Try viewing figure 4 from about 10 inches If the foveation is sufficient in principle you should not see the bands Figure 4 Foveated test image at 0 25 meter viewing distance nearest level interpolation This foveation resulted in an image compression factor of 2 5 The next image demonstrates the