3D Reconstruction of Real World Scenes Using a Low-Cost 3D Range Scanner

Dias, Paulo; Matos, Miguel Godinho de; Santos, Vítor

doi:10.1111/j.1467-8667.2006.00453.x

Cited by 33 publications

(25 citation statements)

References 10 publications

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“…Consequently, contact shots are equivalent to reflected laser beams that reach the receptor unit of the instrument and non-contact shots are equivalent to nonreceived shots. Systems provide a range from simple single-direction laser pointers to 2D or even complete 3D laser scanners, whereas tripod-based approaches exist as well as portable ones (Welles and Cohen 1996;Blais 2004;Fleck et al 2004;Dias 2006;Hosoi and Omasa 2007). Not all of these instruments have been successfully applied to tall forest canopies.…”

Section: Lidar and Optical Point Quadrat Methodsmentioning

confidence: 99%

Review of ground-based methods to measure the distribution of biomass in forest canopies

Seidel

Fleck

Leuschner

et al. 2011

Annals of Forest Science

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& Context Ecological research and an effective forest management need accurate information on the structure of the forest canopy to understand the biochemical, physiological and biogeochemical processes within a forest. & Research question This paper reviews the currently available instruments for measuring the distribution of biomass within forest canopies. We compare the most well-established approaches and present the different measurable parameters. A special focus lies on the resolution of the obtained data. & Results It was found that only 3D laser scanners offer data with the resolution required by ecologists, private landholders, the forest industry and the public to detect trends in tree growth patterns and canopy interactions in all three spatial dimensions. But data validation, data analysis and parameter extraction are still under development, and the price of the instrument is quite high. & Conclusion Research should focus on the parameter extraction from terrestrial laser scanner data as this could allow the calculation of functional attributes for different sections of a canopy on a high spatial resolution. It could also help ecologists characterize the structure of forest stands in a quick and precise way.

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Section: Lidar and Optical Point Quadrat Methodsmentioning

confidence: 99%

Review of ground-based methods to measure the distribution of biomass in forest canopies

Seidel

Fleck

Leuschner

et al. 2011

Annals of Forest Science

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“…This method was initially used in studies conducted to confirm data in relation to geography and topography (Priestnall, 2000; Zhou, 2004; Kimes, 2006). In recent years, it has been used essentially to remodel various spatial phenomena (Dias, 2006; Arayici, 2007; Pu & Vosselman, 2009; Armesto et al, 2010).…”

Section: Terrestrial Laser Scanningmentioning

confidence: 99%

Gage-Free Stress Estimation of a Beam-like Structure Based on Terrestrial Laser Scanning

Lee

Park

2011

Computer-Aided Civil and Infrastructure Engineering

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Terrestrial laser scanning (TLS) is a technique that remotely obtains the three-dimensional (3D) coordinates of an object using laser pulses. It is advantageous when used to obtain the 3D coordinates of the overall shape as well as any particular area or point of a target object. In addition, using TLS for the stress monitoring of structures will not require the installation of a sensor on the target structure whose structural response will be assessed. Thus, TLS can resolve the limitations of conventional sensors based on strain monitoring. This article presents a computational model for the automatic estimation of the stresses of beam structures using TLS in association with a finite element method. The method is experimentally applied to the stress estimation of a simply supported steel beam subjected to a concentrated load. In this experimentation, the maximum and minimum errors between the estimated stresses using TLS and directly measured stresses from electrical strain gages are found to be 7.2% and 2.2%, respectively.

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“…The modified car includes several sensors as illustrated on Fig. 1.The 3D laser scanner is based on a modified 2D laser scanner originally proposed in Dias, Matos and Santos [6] and further modified to its actual configuration [7]. Besides the 3D laser, two 2D SICK LMS 151 lasers are mounted on the front bumper of the car.…”

Section: Introductionmentioning

confidence: 99%

3D-2D Laser Range Finder Calibration Using a Conic Based Geometry Shape

Almeida

Dias

Oliveira

et al. 2012

Lecture Notes in Computer Science

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Abstract. The AtlasCar is a prototype that is being developed at the University of Aveiro to research advanced driver assistance systems. The car is equipped with several sensors: 3D and 2D laser scanners, a stereo camera, inertial sensors and GPS. The combination of all these sensor data in useful representations is essential. Therefore, calibration is one of the first problems to tackle. This paper focuses on 3D/2D laser calibration. The proposed method uses a 3D Laser Range Finder (LRF) to produce a reference 3D point cloud containing a known calibration object. Manual input from the user and knowledge of the object geometry are used to register the 3D point cloud with the 2D Lasers. Experimental results with simulated and real data demonstrate the effectiveness of the proposed calibration method.

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3D Reconstruction of Real World Scenes Using a Low-Cost 3D Range Scanner

Cited by 33 publications

References 10 publications

Review of ground-based methods to measure the distribution of biomass in forest canopies

Review of ground-based methods to measure the distribution of biomass in forest canopies

Gage-Free Stress Estimation of a Beam-like Structure Based on Terrestrial Laser Scanning

3D-2D Laser Range Finder Calibration Using a Conic Based Geometry Shape

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