一个计算效率高的神经模型用于碰撞检测与对比极性特异的输入前置抑制
Guangxuan Gao1, Renyuan Liu1, Mengying Wang1
1Machine Life and Intelligence Research Centre, School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China.
Biomimetics (Basel, Switzerland)
|November 26, 2024
概括
这项研究优化了人工视觉系统的碰撞检测,通过将前抑制 (FFI) 分开成ON/OFF通道. 新型号提高了处理速度,并保持了机器人避免碰撞的高精度.
科学领域:
- 神经科学和机器人技术
- 计算机视觉 计算机视觉
- 生物启发工程 生物启发工程
背景情况:
- 动物使用动态视觉来避免碰撞,激发人造系统的灵感.
- 龙珠巨型运动探测器 (LGMD) 是生物灵感碰撞传感器的关键.
- 现有的模型缺乏在前传抑制 (FFI) 中有效分离开启/关闭对比信号.
研究的目的:
- 开发一个优化的计算LGMD模型与极性特定的FFI.
- 为了提高人工视觉系统的能源效率和处理速度.
- 为了提高碰撞检测的选择性和稳定性.
主要方法:
- 提出了一个神经元模型,FFI被分为不同的ON/OFF通道.
- 引入了一个节能激活功能用于神经计算.
- 使用最先进的模型和现实世界机器人实现进行了系统的比较测试.
主要成果:
- 在保持碰撞选择性的同时,在体中实现了显著的时间节省.
- 证明了对ON/OFF对比度迫在眉的刺激的强有力的检测和转移运动的抑制.
- 在微型移动机器人上实施模型,达到97.51%的避免碰撞成功,处理时间缩短了一半.
结论:
- 优化的LGMD模型提供了一个强大而节能的碰撞传感解决方案.
- 将FFI分成ON/OFF通道显著加快视觉处理.
- 这种方法有效地解决了机器人技术中现实世界的碰撞避免挑战.
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