Pattern recognition and computer vision tasks are computationally intensive, repetitive, and often exceed the capabilities of the CPU, leaving little time for higher level tasks. We present a novel computer architecture which uses multiple commodity computer graphics devices to perform pattern recognition and computer vision tasks many times faster than the CPU. This is a parallel computing architecture that is quickly and easily constructed from the readily available hardware. It is based on parallel processing done on multiple graphics processing units (GPUs). An eigenspace image recognition approach is implemented on this parallel graphics architecture. This paper discusses methods of mapping computer vision algorithms to run efficiently on multiple graphics devices to maximally utilize the underlying graphics hardware. The additional memory and memory bandwidth provided by the graphics hardware provided for significant speedup of the eigenspace approach. We show that graphics devices parallelize well and provide significant speedup over a CPU implementation, providing an immediately constructible low cost architecture well suited for pattern recognition and computer vision.
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