BUILDING A 3D REFERENCE MODEL FOR CANAL TUNNEL SURVEYING USING SONAR AND LASER SCANNING
نویسندگان
چکیده
منابع مشابه
Adjustment of Sonar and Laser Acquisition Data for Building the 3D Reference Model of a Canal Tunnel †
In this paper, we focus on the construction of a full 3D model of a canal tunnel by combining terrestrial laser (for its above-water part) and sonar (for its underwater part) scans collected from static acquisitions. The modeling of such a structure is challenging because the sonar device is used in a narrow environment that induces many artifacts. Moreover, the location and the orientation of ...
متن کاملTerrestrial Laser Scanning – New Perspectives in 3d Surveying
Laser scanners are used more and more as surveying instruments for various applications. With the advance of high precision systems, capable of working in most real world environments under a variety of conditions, numerous applications have opened up. In the field of surveying laser scanners open up a new dimension with data capturing. Different industrial sectors require precise data of the e...
متن کاملIdentifying Building Types and Building Clusters Using 3d-laser Scanning and Gis-data
Power authorities are highly interested in figures that indicate the energy requirements and especially the heat requirements on a local, regional and country-wide level. Such numbers are needed for their planning of new sites of power plants or for planning alternative energy modes. Existing methods for estimating those requirements heavily rely on local sampling methods as well as on the use ...
متن کاملModel-Free 3D Reconstruction of Weld Joint Using Laser Scanning
This article presents a novel utilization of the concept of entropy in information theory to a model-free reconstruction of 3D space in presence of noise. We show that its formulation attains its global minimum at the upper edge of this space to facilitate the extraction of its volume. Furthermore, we present a Monte Carlo approach that is based on the stratification of the sensor information t...
متن کاملNew High-resolution Field Surveying Methods for Validation of Crown Attributes from 3d Scanning Laser Data
High density airborne LiDAR data has been used to provide detailed information on tree canopy structure. Recent research has reported that it is difficult to determine where the LiDAR data errors appear on the tree crown, as the returns generally underestimate tree height. This study introduces a novel way to assess vertical and horizontal patterns of airborne LiDAR data error using an error ma...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
سال: 2015
ISSN: 2194-9034
DOI: 10.5194/isprsarchives-xl-5-w5-153-2015