Integrating Three Mechanisms of Visual Attention for Active Visual Search

Understand

Algorithms for robotic visual search can benefit from the use of visual attention methods in order to reduce computational costs.

• Here, we describe how three distinct mechanisms of visual attention can be integrated and productively used to improve search performance.
• The first is viewpoint selection as has been proposed earlier using a greedy search over a probabilistic occupancy grid representation.
• The second is top-down object-based attention using a histogram backprojection method, also previously described.