Searched for:
(1 - 9 of 9)
document
Ao, Y. (author), Wang, J. (author), Zhou, M. (author), Lindenbergh, R.C. (author), Yang, M. Y. (author)
Panoramic images are widely used in many scenes, especially in virtual reality and street view capture. However, they are new for street furniture identification which is usually based on mobile laser scanning point cloud data or conventional 2D images. This study proposes to perform semantic segmentation on panoramic images and transformed...
journal article 2019
document
Shen, Y. (author), Lindenbergh, R.C. (author), Wang, Jinguo (author), Ferreira, Vagner G. (author)
Bricks are the vital component of most masonry structures. Their maintenance is critical to the protection of masonry buildings. Terrestrial Light Detection and Ranging (TLidar) systems provide massive point cloud data in an accurate and fast way. TLidar enables us to sample and store the state of a brick surface in a practical way. This...
journal article 2018
document
Wang, J. (author), Lindenbergh, R.C. (author)
Urban trees are an important component of our environment and ecosystem. Trees are able to combat climate change, clean the air and cool the streets and city. Tree inventory and monitoring are of great interest for biomass estimation and change monitoring. Conventionally, parameters of trees are manually measured and documented in situ, which...
journal article 2018
document
Shen, Y. (author), Wang, Jinguo (author), Lindenbergh, R.C. (author), Hofland, B. (author), Ferreira, Vagner G. (author)
The use of a terrestrial laser scanner is examined to measure the changes of rock slopes subject to a wave attack test. Real scenarios are simulated in a water flume facility using a wave attack experiment representing a storm of 3000 waves. The stability of two rock slopes of different steepness was evaluated under the set conditions. For...
journal article 2018
document
Shen, Y. (author), Lindenbergh, R.C. (author), Wang, J. (author)
A method is introduced for detecting changes from point clouds that avoids registration. For many applications, changes are detected between two scans of the same scene obtained at different times. Traditionally, these scans are aligned to a common coordinate system having the disadvantage that this registration step introduces additional...
journal article 2017
document
Wang, J. (author), Lindenbergh, R.C. (author), Shen, Y. (author), Menenti, M. (author)
Laser scanning samples the surface geometry of objects efficiently and records versatile information as point clouds. However, often more scans are required to fully cover a scene. Therefore, a registration step is required that transforms the different scans into a common coordinate system. The registration of point clouds is usually conducted...
journal article 2016
document
Sirmacek, B. (author), Lindenbergh, R.C. (author), Wang, J. (author)
3D urban models are valuable for urban map generation, environment monitoring, safety planning and educational purposes. For 3D measurement of urban structures, generally airborne laser scanning sensors or multi-view satellite images are used as a data source. However, close-range sensors (such as terrestrial laser scanners) and low cost cameras...
journal article 2016
document
Wang, J. (author), González-Jorge, Higinio (author), Lindenbergh, R.C. (author), Arias-Sánchez, Pedro (author), Menenti, M. (author)
Mountain roads are the lifelines of remote areas but are often situated in complicated settings and prone to landslides, rock fall, avalanches and damages due to surface water runoff. The impact and likelihood of these types of hazards can be partly assessed by a detailed geometric analysis of the road environment. Field measurements in...
journal article 2014
document
Wang, J. (author), González-Jorge, H. (author), Lindenbergh, R. (author), Arias-Sánchez, P. (author), Menenti, M. (author)
Roads play an indispensable role as part of the infrastructure of society. In recent years, society has witnessed the rapid development of laser mobile mapping systems (LMMS) which, at high measurement rates, acquire dense and accurate point cloud data. This paper presents a way to automatically estimate the required excavation volume when...
journal article 2013
Searched for:
(1 - 9 of 9)