Online, offline, realtime: recent developments in industrial photogrammetry

Boesemann, Werner

doi:10.1117/12.473092

Cited by 3 publications

(3 citation statements)

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“…The most important principles for the evaluation of distances on the basis of contact-free, optical ranging techniques are divided into the following two classes (Bösemann, 2003): offline or online , whereby the latter is being subordinated by another class, namely realtime. The same applies to the principles underlying the evaluation of the complete model .…”

Section: Traditional and Modern Reverse Engineering Tools (Data Capture)mentioning

confidence: 99%

Clean construction and demolition waste material cycles through optimised pre-demolition waste audit documentation: A review on building material assessment tools

Rašković¹,

Ragoßnig²,

Kondracki³

et al. 2020

Waste Manag Res

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Waste from the construction sector poses huge challenges for sustainable waste management. This is not only due to the vast amount of waste produced in construction and demolition activities, but also due to pollutants potentially contained in these products. Subject to these conditions, waste management must ensure recovery of as many resources as possible, while making sure to keep material loops clean. This demanding task requires more knowledge about the existing building stock and an adaptation of current demolition processes. Innovative technologies, such as Building Information Modelling, or modern frameworks, such as Geographic Information Systems, offer a high potential to synoptically provide stock material information for future demolition activities for individual objects to be deconstructed as well as for whole cities as a basis for managing the anthropogenic stock and potential urban mining. Suitable methods of data collection allow for acquiring the desired input for the generation of building stock models enriched with demolition-related information. With the latter, selective deconstruction strategies as well as appropriate waste stream routing agendas can be planned and executed, thereby securing safety at work during the demolition process itself and a waste stream routing according to the waste hierarchy. This review article gives an overview of currently deployed building material assessment tools (data capture and visualisation), both a prerequisite for improved information on materials and geometry (and thereby mass/volume). In addition, this article describes workflows employable for the purpose of urban mining in end-of-life buildings, of which one holistic approach will be described in depth.

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Section: Traditional and Modern Reverse Engineering Tools (Data Capture)mentioning

confidence: 99%

Clean construction and demolition waste material cycles through optimised pre-demolition waste audit documentation: A review on building material assessment tools

Rašković¹,

Ragoßnig²,

Kondracki³

et al. 2020

Waste Manag Res

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“…With the development of electronic technology, information processing technology, and measurement theory, the industrial photogrammetry system represented by V-STARS of Geodetic Services Inc. and indoor space positioning measurement system represented by iGPS of the Nikon Inc. are developed for largescale space measurement [6][7][8][9][10]. Based on multidirectional imaging for the coding and noncoding marks by high-precision digital camera and the image processing algorithms, the photogrammetry system achieves the coordinates' measurement of the space characteristics (the light reflecting symbols attached on the surface of the measured object or optical projection marks) [11][12][13][14][15]. This method requires the measured object to be imaged at different positions and directions.…”

Section: Introductionmentioning

confidence: 99%

Automatic Measurement in Large-Scale Space with the Laser Theodolite and Vision Guiding Technology

Wang

2013

Advances in Mechanical Engineering

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The multitheodolite intersection measurement is a traditional approach to the coordinate measurement in large-scale space. However, the procedure of manual labeling and aiming results in the low automation level and the low measuring efficiency, and the measurement accuracy is affected easily by the manual aiming error. Based on the traditional theodolite measuring methods, this paper introduces the mechanism of vision measurement principle and presents a novel automatic measurement method for large-scale space and large workpieces (equipment) combined with the laser theodolite measuring and vision guiding technologies. The measuring mark is established on the surface of the measured workpiece by the collimating laser which is coaxial with the sight-axis of theodolite, so the cooperation targets or manual marks are no longer needed. With the theoretical model data and the multiresolution visual imaging and tracking technology, it can realize the automatic, quick, and accurate measurement of large workpieces in large-scale space. Meanwhile, the impact of artificial error is reduced and the measuring efficiency is improved. Therefore, this method has significant ramification for the measurement of large workpieces, such as the geometry appearance characteristics measuring of ships, large aircraft, and spacecraft, and deformation monitoring for large building, dams.

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“…Video photogrammetry is an accurate measurement technique that has widespread applications, such as metrology and quality control [7], human movement analysis [6], medical applications [8], robot vision [9,10], reconstruction of virtual environments [11] and many other industrial applications [12]. Currently, some free software to calibrate cameras and to reconstruct 3D movement is available on the Web [13,14].…”

Section: Introductionmentioning

confidence: 99%

Application of video photogrammetry to analyse mechanical systems in the undergraduate physics laboratory

Page¹,

Candelas²,

Belmar³

2006

Eur. J. Phys.

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In this paper, we show the usefulness of video photogrammetry techniques in analysing three-dimensional (3D) motions in the undergraduate physics laboratory. Using video data, recorded from a couple of synchronized cameras, and adequate data processing software, the main features of 3D movement such as spatial trajectory, velocity and acceleration may be accurately measured. Moreover, this method allows us to corroborate the law of mechanical energy conservation, as well as to test the differential equation that governs the dynamics of a mechanical system. As an example, the 3D trajectory of a spherical pendulum has been analysed, showing the possibilities of the proposed technique to improve the empirical study of some mechanical systems in an undergraduate context.

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Online, offline, realtime: recent developments in industrial photogrammetry

Cited by 3 publications

References 0 publications

Clean construction and demolition waste material cycles through optimised pre-demolition waste audit documentation: A review on building material assessment tools

Clean construction and demolition waste material cycles through optimised pre-demolition waste audit documentation: A review on building material assessment tools

Automatic Measurement in Large-Scale Space with the Laser Theodolite and Vision Guiding Technology

Application of video photogrammetry to analyse mechanical systems in the undergraduate physics laboratory

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