Tracking objects outside the line of sight using 2D intensity images.
Tracking objects outside the line of sight using 2D intensity images.
复制标题
使用 2D 强度图像跟踪视线外的物体。
DOI:
10.1038/srep32491
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发表时间:
2016-08-31
影响因子:
4.6
通讯作者:
Hullin MB
中科院分区:
文献类型:
--
作者:
Klein J;Peters C;Martín J;Laurenzis M;Hullin MB
The observation of objects located in inaccessible regions is a recurring challenge in a wide variety of important applications. Recent work has shown that using rare and expensive optical setups, indirect diffuse light reflections can be used to reconstruct objects and two-dimensional (2D) patterns around a corner. Here we show that occluded objects can be tracked in real time using much simpler means, namely a standard 2D camera and a laser pointer. Our method fundamentally differs from previous solutions by approaching the problem in an analysis-by-synthesis sense. By repeatedly simulating light transport through the scene, we determine the set of object parameters that most closely fits the measured intensity distribution. We experimentally demonstrate that this approach is capable of following the translation of unknown objects, and translation and orientation of a known object, in real time.
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