Real-time visual attention on a massively parallel SIMD architecture

  • Authors:
  • Nabil Ouerhani;Heinz Hügli

  • Affiliations:
  • Institute of Microtechnology, University of Neuchâtel, Rue A.-L. Breguet 2, CH-2000 Neuchâtel, Switzerland;Institute of Microtechnology, University of Neuchâtel, Rue A.-L. Breguet 2, CH-2000 Neuchâtel, Switzerland

  • Venue:
  • Real-Time Imaging
  • Year:
  • 2003

Quantified Score

Hi-index 0.00

Visualization

Abstract

Visual attention is the ability to rapidly detect the visually salient parts of a given scene on which higher level vision tasks, such as object recognition, can focus. Found in biological vision, this mechanism represents a fundamental tool for computer vision. This paper reports the first real-time implementation of the complete visual attention mechanism on a compact and low-power architecture. Specifically, the saliency-based model of visual attention was implemented on a highly parallel single instruction, multiple data architecture called ProtoEye. Conceived for general purpose low-level image processing, ProtoEye consists of a 2D array of mixed analog-digital processing elements. To reach real-time, the operations required for visual attention computation were optimally distributed on the analog and digital parts. The currently available prototype runs at a frequency of 14 images/s and operates on 64 × 64 gray level images. Extensive testing and run-time analysis of the system stress the strengths of the architecture.