Fast high resolution 3D laser scanning by real-time object tracking and segmentation

Thielemann, Jens T.; Berge, A.; Skotheim, Øystein; Kirkhus, Trine

doi:10.1109/iros.2012.6385501

Cited by 1 publication

(5 citation statements)

References 13 publications

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“…4. Innovative concepts such as foveation allow for the adaptive increase of lateral resolution in parts of the field of view [6].…”

Section: A State Of the Artmentioning

confidence: 99%

“…Solving this equation for A MEMS;1 , we get (4), collection lens (5), and one-dimensional array of synchronously switched detectors in the other scanning axis (6).…”

Section: Aperture Dependent Fabrication Costmentioning

confidence: 99%

“…Considering the fact that the movement of a vehicle is always directional, directional sensors are necessary as well. A combination with the concept of foveation [6] even enables a dynamic change of the directivity of the system. Typical long-range ToF sensors, which are designed for measurement distances of 300 m and more, only provide for a field of view of ≈3° [ 28].…”

Section: Effect On Broader Scientific Issuesmentioning

confidence: 99%

“…Side view illustration of approach 1, consisting of collimated laser source (1), scanning micromirror (2), scattering object (3), and 2D array consisting of synchronously scanned micromirrors (4), followed by collection lens (5) and detector(6).…”

mentioning

confidence: 99%

“…Zemax rendering of optical beam path, showing laser diode (1) emitting a collimated laser beam, micromirror (2) in package (micromirror not visible), scattering object (3) at 10 m distance, galvanometer mirror (4), Fresnel lenses(5), and glass lid in front of detector array and detectorarray(6).…”

mentioning

confidence: 99%

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Large aperture at low cost three-dimensional time-of-flight range sensor using scanning micromirrors and synchronous detector switching

Bogatscher

Streck²,

Fox³

et al. 2014

Appl. Opt.

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In this article the problem of achieving fast scanning of a time-of-flight range sensor with a large optical receiver aperture at low system cost is targeted. The presented approach to solve this problem consists of a micromirror-based transmitter unit and a receiver unit consisting of a large aperture lens system with a small field of view and a detector array. A concept, which is called synchronous detector switching, is applied to the detector array. Thereby electronic steering of the small receiver field of view is possible. The overall approach is compared to alternative approaches, and the underlying concept of synchronous detector switching is demonstrated experimentally in an implementation of a three-dimensional time-of-flight range sensor. It is theoretically shown that the presented concept is potentially cheaper than the alternative approaches for applications with a field of view of less than 60×60°. After a discussion of the strengths and limitations of the approach, its effect on broader scientific issues is outlined.

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“…4. Innovative concepts such as foveation allow for the adaptive increase of lateral resolution in parts of the field of view [6].…”

Section: A State Of the Artmentioning

confidence: 99%

“…Solving this equation for A MEMS;1 , we get (4), collection lens (5), and one-dimensional array of synchronously switched detectors in the other scanning axis (6).…”

Section: Aperture Dependent Fabrication Costmentioning

confidence: 99%