Adaptive pulsed laser line extraction for terrain reconstruction using a dynamic vision sensor.
Adaptive pulsed laser line extraction for terrain reconstruction using a dynamic vision sensor.
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DOI:
10.3389/fnins.2013.00275
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发表时间:
2013
影响因子:
4.3
通讯作者:
Delbruck T
中科院分区:
文献类型:
--
作者:
Brandli C;Mantel TA;Hutter M;Höpflinger MA;Berner R;Siegwart R;Delbruck T
Mobile robots need to know the terrain in which they are moving for path planning and obstacle avoidance. This paper proposes the combination of a bio-inspired, redundancy-suppressing dynamic vision sensor (DVS) with a pulsed line laser to allow fast terrain reconstruction. A stable laser stripe extraction is achieved by exploiting the sensor's ability to capture the temporal dynamics in a scene. An adaptive temporal filter for the sensor output allows a reliable reconstruction of 3D terrain surfaces. Laser stripe extractions up to pulsing frequencies of 500 Hz were achieved using a line laser of 3 mW at a distance of 45 cm using an event-based algorithm that exploits the sparseness of the sensor output. As a proof of concept, unstructured rapid prototype terrain samples have been successfully reconstructed with an accuracy of 2 mm.
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DOI:
10.3390/s120201437
发表时间:
2012
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1109/34.121791
发表时间:
1992-02-01
影响因子:
23.6
作者:
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通讯作者:
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影响因子:
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通讯作者:
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影响因子:
3.3
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影响因子:
3.3
作者:
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