Recently, a laser scanner has been receiving more attention as a useful tool for real-time 3D data acquisition, and various applications such as city modeling, DTM generation and 3D modeling of cultural heritage were proposed. However, 3D Representation of historical structures from point cloud 3D data collected by laser scanner is still issues. In order to reduce the time, labor and skill for ...

Multiple laser scanner hardware configurations can be applied to Mobile Mapping Systems. As best practice, laser scanners are rotated horizontally or inclined vertically to increase the probability of contact between the laser scan plane and any surfaces that are perpendicular to the direction of travel. Vertical inclinations also maximise the number of scan profiles striking narrow vertical fe...

Three-dimensional laser scanned surface segmentation is an important step for computer-aided broken objection patching. Current methods still have high time consuming problem in practical applications. In order to solve this problem, we propose the rapid three-dimensional (3-D) surface segmentation based on region dilation. The procedure includes three steps of point cloud meshing, candidate re...

Mobile laser scanning (MLS) is the latest approach towards fast and cost-efficient acquisition of 3dimensional spatial data. Accurately evaluating the boresight alignment in MLS systems is an obvious necessity. However, actual systems available on the market may lack of suitable and efficient practical workflows on how to perform this calibration. This paper discusses an innovative method for a...

The recent survey technologies, play a leading role in the process of knowledge of the cultural heritage. In fact they are finalized to the acquisition of geometric data necessary to describe usefully geometric features and peculiarities of historical monuments necessary for their conservation and safeguard. Besides digitalisation of the acquired data, allows the same data availability by diffe...

A scanner is developed that can capture range as well as color data from four sides of an object and combine the data into a complete model. In this scanner four synchronous cameras scan an object from four sides in a coordinate system that is attached to the scanner. Data produced by the four cameras, therefore, automatically come together without the need for image registration. The uniquenes...

Innovations in laser technology have led to the development of three-dimensional surface laser digitisation techniques capable of registering surface topology accurately. The clinical application of this technology in cleft palate documentation requires validation of the technique. This study determined the reliability of the surface laser scanning technique and assessed the reliability of inte...

As image guided surgical procedures become increasingly diverse, there will be more scenarios where point-based fiducials cannot be accurately localized for registration and rigid body assumptions no longer hold. As a result, procedures will rely more frequently on anatomical surfaces for the basis of image alignment and will require intraoperative geometric data to measure and compensate for t...

High-rise buildings subjected to lateral loads such as wind and earthquake loads must be checked not to exceed the limits on the maximum lateral displacement or the maximum inter-story drift ratios. In this paper, a sensing model for deformed shapes of a building structure in motion is presented. The deformed shape sensing model based on a 2D scanner consists of five modules: (1) module for acq...