A Description for Rock Joint Roughness Based on Terrestrial Laser Scanner and Image Analysis
نویسندگان
چکیده
منابع مشابه
Image-Based Registration Method for Terrestrial Laser Scanner Data
SUMMARY The registration of point clouds forms the first task associated with building 3D models from laser scanner data in cases where multiple scans are required for complete coverage of the scene or object being recorded. This paper presents an image-based registration method for terrestrial laser scanner (TLS) data in which the transformation parameters of one data set with respect to anoth...
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Terrestrial Laser Scanner (TLS) technology, have altered quickly data acquisition for map production in surveying. In many cases, it is impossible to complete surveying of the desired area without TLS displacement in one station to another. Occlusion is innate in data acquisition, with this type of device. To solve this problem, TLS devices should be placed in different locations and scanning o...
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The intensity information from terrestrial laser scanners (TLS) has become an important object of study in recent years, and there are an increasing number of applications that would benefit from the addition of calibrated intensity data to the topographic information. In this paper, we study the range and incidence angle effects on the intensity measurements and search for practical correction...
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Terrestrial laser imaging systems offer a new means for rapid precise mapping of objects up to ranges of up to a few hundred metres from the instrument location. The high sampling frequency (e.g., several kilohertz) available from such instrumentation can provide a spatial data density of directly observed co-ordinates far in excess of that available with photogrammetric techniques. For structu...
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In some applications, long range operations Terrestrial Laser Scanners (TLS) achieve insufficient precision: for instance, a decorated façade will not be modeled correctly with the point cloud obtained by TLS. It may be necessary, in such cases, to combine different acquisition techniques to deal with the large size of the object to model and its fine details. Hence, data denoising in the conte...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep16999