  Small target detection is known to be a challenging problem. Inspired by the
structural characteristics and physiological mechanism of eagle-eye, a
miniature vision system is designed for small target detection in this paper.
First, a hardware platform is established, which consists of a pan-tilt, a
short-focus camera and a long-focus camera. Then, based on the visual attention
mechanism of eagle-eye, the cameras with different focal lengths are controlled
cooperatively to achieve small target detection. Experimental results show that
the designed biological eagle-eye vision system can accurately detect small
targets, which has a strong adaptive ability.
