结合昆虫复眼运动神经具有的空间侧抑制机制,设计了一种新的复眼模型,并使用全硬件方法实现了该模型。与自相关的模拟量模型相比,该模型的数字部分采用触发响应模式,使系统具有很宽的速度测量范围;在此基础上,通过结合空间侧抑制网络,使得模型能够有效地减少背景光强不均匀、不稳定造成的错误判断。由于整个系统是完全实时并行的,所以能够处理高速运动情况。通过实验,验证了系统的可行性。
A new compound eye model was described based on the lateral inhibitory mechanism. Compared with the corre lation analog elementary-motion-detector, the system has largert range of velocity because of the trigger-reflection mode of the digital system. Combining the spatial lateral inhibition network, the model reduced the influence of the variation in background illuminations on the boundary detection. The system works in full hardware mode with real-time parallel processing, so it can process the high speed motion. The feasibility of the system is confirmed by experiments.