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Fig. 1 Real-time visual attention implemented on Protoeye
The developed prototype is the first real time implementation of the saliency-based model of visual attention on a compact system consisting of a low power, one board, highly parallel SIMD architecture. Dedicated to low-level image processing, the fully-programmable SIMD machine consists of an array of mixed digital-analog processing elements that offer high-performance functionalities for implementing the various functions appearing in the model of visual attention. The current prototype processes 64 x 64 pixel images at a rate of 14 images/second, which allows the use of visual attention in real time applications related to computer vision. Extensive performance analysis confirms the strengths of the architecture, but also shows its high performance potential. In future design, a 10 times increase in performance seems straightforward and due to the parallel architecture, the extension on larger images is possible at the cost of simple hardware duplication [2] .
[1] Nabil Ouerhani , Heinz Hügli , Pierre-Yves Burgi , Pierre-François Ruedi, "A Real Time Implementation of the Saliency-Based Model of Visual Attention on a SIMD Architecture", Volume 2449, pp 282-289, Lecture Notes in Computer Science, Springer Verlag 2002
[2] Nabil Ouerhani and Heinz Hügli, "Real Time Visual Attention on a Massively Parallel SIMD Architecture", Int. Journal of Real-time imaging, Elsevier Computer Science, Volume 9, Issue 3, Pages 189-196, June 2003
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