We describe our research in using environmental visual landmarks as the basis for completing simple robot construction tasks.Inspired by honeybee visual navigation behavior,a visual template mechanism is proposed in w...We describe our research in using environmental visual landmarks as the basis for completing simple robot construction tasks.Inspired by honeybee visual navigation behavior,a visual template mechanism is proposed in which a natural landmark serves as a visual reference or template for distance determination as well as for navigation during collective construction.To validate our proposed mechanism,a wall construction problem is investigated and a minimalist solution is given.Experimental results show that,using the mechanism of a visual template,a collective robotic system can successfully build the desired structure in a decentralized fashion using only local sensing and no direct communication.In addition,a particular variable,which defines tolerance for alignment of the structure,is found to impact the system performance.By decreasing the value of the variable,system performance is improved at the expense of a longer construction time.The visual template mechanism is appealing in that it can use a reference point or salient object in a natural environment that is new or unexplored and it could be adapted to facilitate more complicated building tasks.展开更多
针对移动机器人数字路标的识别提出一种增强的序贯相似性检测算法(SSDA,sequence similar detection arithmetic),算法中的阈值采用单调递减的阈值序列,阈值逐渐逼近最佳阈值,从而使非匹配区域经过尽量少的计算超过阈值而被丢弃,有效改...针对移动机器人数字路标的识别提出一种增强的序贯相似性检测算法(SSDA,sequence similar detection arithmetic),算法中的阈值采用单调递减的阈值序列,阈值逐渐逼近最佳阈值,从而使非匹配区域经过尽量少的计算超过阈值而被丢弃,有效改善识别的实时性。通过实验表明该算法能够快速准确地完成数字路标识别。展开更多
基金Project (No.61075091) supported by the National Natural Science Foundation of China
文摘We describe our research in using environmental visual landmarks as the basis for completing simple robot construction tasks.Inspired by honeybee visual navigation behavior,a visual template mechanism is proposed in which a natural landmark serves as a visual reference or template for distance determination as well as for navigation during collective construction.To validate our proposed mechanism,a wall construction problem is investigated and a minimalist solution is given.Experimental results show that,using the mechanism of a visual template,a collective robotic system can successfully build the desired structure in a decentralized fashion using only local sensing and no direct communication.In addition,a particular variable,which defines tolerance for alignment of the structure,is found to impact the system performance.By decreasing the value of the variable,system performance is improved at the expense of a longer construction time.The visual template mechanism is appealing in that it can use a reference point or salient object in a natural environment that is new or unexplored and it could be adapted to facilitate more complicated building tasks.
文摘针对移动机器人数字路标的识别提出一种增强的序贯相似性检测算法(SSDA,sequence similar detection arithmetic),算法中的阈值采用单调递减的阈值序列,阈值逐渐逼近最佳阈值,从而使非匹配区域经过尽量少的计算超过阈值而被丢弃,有效改善识别的实时性。通过实验表明该算法能够快速准确地完成数字路标识别。
