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arXiv 1801.07249cs.RO
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低层主动视觉导航:使用势场增强基于视觉定位的鲁棒性

Low-level Active Visual Navigation: Increasing robustness of vision-based localization using potential fields

Instituto Superior Técnico(里斯本高等理工学院);Universidade de Lisboa(里斯本大学)

Romulo T. Rodrigues, Meysam Basiri, A. Pedro Aguiar, Pedro Miraldo

摘要:

针对移动机器人视觉定位问题,提出了一种低层视觉导航算法。该算法基于人工势场,将当前图像帧中的每个特征与有吸引力或中性势能相关联,其目的是生成将车辆朝向目标驱动的控制动作,同时仍然有利于局部范围内的特征丰富区域,从而提高定位性能。所提出的方法的一个关键特性是,它不依赖于映射,因此它是一个轻量级的解决方案,可以部署在小型化的空中机器人,其中内存和计算能力是主要的限制。仿真和实际的实验结果表明,该方法可以有效地驱动车辆到指定的目标,通过路径,防止定位失败。

英文摘要:

This paper proposes a low-level visual navigation algorithm to improve visual localization of a mobile robot. The algorithm, based on artificial potential fields, associates each feature in the current image frame with an attractive or neutral potential energy, with the objective of generating a control action that drives the vehicle towards the goal, while still favoring feature rich areas within a local scope, thus improving the localization performance. One key property of the proposed method is that it does not rely on mapping, and therefore it is a lightweight solution that can be deployed on miniaturized aerial robots, in which memory and computational power are major constraints. Simulations and real experimental results using a mini quadrotor equipped with a downward looking camera demonstrate that the proposed method can effectively drive the vehicle to a designated goal through a path that prevents localization failure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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