Programmable Triangulation Light Curtains

Programmable Triangulation Light Curtains
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可编程三角测量光幕

DOI:
10.1007/978-3-030-01219-9_2
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发表时间:
2018
期刊:
European Conference on Computer Vision
影响因子:
--
通讯作者:
Narasimhan, Srinivasa G.
Narasimhan, Srinivasa G.
中科院分区:
--
文献类型:
--
作者:
Wang, Jian;Bartels, Joseph;Whittaker, William;Sankaranarayanan, Aswin C.;Narasimhan, Srinivasa G.

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道路上的车辆或现场的机器人不需要全功能的3D深度传感器来检测潜在的碰撞或监控其盲点。相反,它只需要监视是否有任何物体靠近它,这比全深度扫描更容易。我们介绍了一种新的设备,该设备附近的虚拟外壳上的对象的存在进行监视,我们称之为光幕。光幕为避障和导航提供了一种重量轻、资源高效且可编程的接近感知方法。它们在提高雾中能见度以及处理光衰减的灵活性方面还具有额外的好处。我们用于产生光幕的原型通过同步快速旋转线传感器和线激光器来工作。该设备能够产生各种形状的光幕,在阳光下的范围为20- 30米(多云天空下为40米,室内为50米),并动态适应任务的要求。我们分析了光幕的特性以及优化其厚度和功率要求的各种方法。我们使用一系列真实场景展示光幕的潜力。
A vehicle on a road or a robot in the field does not need a full-featured 3D depth sensor to detect potential collisions or monitor its blind spot. Instead, it needs to only monitor if any object comes within its near proximity which is an easier task than full depth scanning. We introduce a novel device that monitors the presence of objects on a virtual shell near the device, which we refer to as a light curtain. Light curtains offer a light-weight, resource-efficient and programmable approach to proximity awareness for obstacle avoidance and navigation. They also have additional benefits in terms of improving visibility in fog as well as flexibility in handling light fall-off. Our prototype for generating light curtains works by rapidly rotating a line sensor and a line laser, in synchrony. The device is capable of generating light curtains of various shapes with a range of 20-30m in sunlight (40m under cloudy skies and 50m indoors) and adapts dynamically to the demands of the task. We analyze properties of light curtains and various approaches to optimize their thickness as well as power requirements. We showcase the potential of light curtains using a range of real-world scenarios.
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