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Autonomous Visual Navigation of an Indoor Environment Using a Parsimonious Insect Inspired Familiarity Algorithm

机译:使用简约昆虫启发式熟悉算法的室内环境自主视觉导航

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摘要

The navigation of bees and ants from hive to food and back has captivated people for more than a century. Recently, the Navigation by Scene Familiarity Hypothesis (NSFH) has been proposed as a parsimonious approach that is congruent with the limited neural elements of these insects’ brains. In the NSFH approach, an agent completes an initial training excursion, storing images along the way. To retrace the path, the agent scans the area and compares the current scenes to those previously experienced. By turning and moving to minimize the pixel-by-pixel differences between encountered and stored scenes, the agent is guided along the path without having memorized the sequence. An important premise of the NSFH is that the visual information of the environment is adequate to guide navigation without aliasing. Here we demonstrate that an image landscape of an indoor setting possesses ample navigational information. We produced a visual landscape of our laboratory and part of the adjoining corridor consisting of 2816 panoramic snapshots arranged in a grid at 12.7-cm centers. We show that pixel-by-pixel comparisons of these images yield robust translational and rotational visual information. We also produced a simple algorithm that tracks previously experienced routes within our lab based on an insect-inspired scene familiarity approach and demonstrate that adequate visual information exists for an agent to retrace complex training routes, including those where the path’s end is not visible from its origin. We used this landscape to systematically test the interplay of sensor morphology, angles of inspection, and similarity threshold with the recapitulation performance of the agent. Finally, we compared the relative information content and chance of aliasing within our visually rich laboratory landscape to scenes acquired from indoor corridors with more repetitive scenery.
机译:蜜蜂和蚂蚁从蜂巢到食物再到背部的航行已经使人们着迷了一个多世纪。最近,有人提出了“场景熟悉假说导航”(NSFH)作为一种简化方法,该方法与这些昆虫大脑中有限的神经元相吻合。在NSFH方法中,代理商完成初始训练行程,并一路存储图像。要回溯路径,代理会扫描区域并将当前场景与以前经历的场景进行比较。通过旋转和移动以最小化遇到的场景和存储的场景之间的逐像素差异,可以在不记忆序列的情况下沿路径引导智能体。 NSFH的重要前提是环境的视觉信息足以引导导航而不会出现混叠。在这里,我们证明室内环境的图像景观具有足够的导航信息。我们绘制了实验室的视觉景观,以及毗邻走廊的一部分,该走廊包括2816张全景快照,这些快照以12.7厘米中心的网格排列。我们显示这些图像的逐像素比较产生了强大的平移和旋转视觉信息。我们还产生了一种简单的算法,该算法基于昆虫启发的场景熟悉性方法来跟踪实验室中以前经历过的路线,并证明代理商具有足够的视觉信息来追溯复杂的训练路线,包括那些从其路径看不到终点的路线起源。我们使用此环境来系统地测试传感器形态,检查角度和相似性阈值与代理的概括性能之间的相互作用。最后,我们将视觉上丰富的实验室景观中相对信息的内容和混叠的可能性与从具有更多重复性景观的室内走廊中获取的场景进行了比较。

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  • 期刊名称 other
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  • 年(卷),期 -1(11),4
  • 年度 -1
  • 页码 e0153706
  • 总页数 25
  • 原文格式 PDF
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