Pages
- 1
- 2
- document
-
Ligtvoet, B.R. (author), Verbree, E. (author), Gorte, B.G.H. (author)There has been a steady increase in applications that rely on crowdsensing to gather data for analysis purposes. Crowdsensing enables the use of dynamic sensors to collect data on static objects of interest. However, using dynamic sensors in this way causes a problem. The focus of the collected data is on the position of the sensor, not on the...conference paper 2018
- document
-
Evers, J.M. (author), Tavasszy, Lorant (author), van Duin, Ron (author), Schott, D.L. (author), Gorte, Frank (author)Food waste and incomplete orders at online supermarkets mainly occur due to inaccurate demand forecasting which leads to incorrect ordering of products. The objective of this study is to develop an accurate demand forecast model at product-level based on historical customer order data, give recommendations on implementation and describe impact...conference paper 2018
- document
-
Hosseini Aria, S.E. (author), Menenti, M. (author), Gorte, B.G.H. (author)One of the main steps in hyperspectral image classification is the selection of bands that provide the best separability among classes. It is usually understood that the selected bands for classification must contain a large amount of information, and the correlation among selected bands should be small to avoid redundancy. At the same time...conference paper 2017
- document
-
Zhou, K. (author), Gorte, B.G.H. (author)In VHR(very high resolution) aerial images, shadows indicating height information are valuable for validating or detecting changes on an existing 3D city model. In the paper, we propose a novel and full automatic approach for shadow detection from VHR images. Instead of automatic thresholding, the supervised machine learning approach is...conference paper 2017
- document
-
Widyaningrum, E. (author), Gorte, B.G.H. (author)The integration of computer vision and photogrammetry to generate three-dimensional (3D) information from images has contributed to a wider use of point clouds, for mapping purposes. Large-scale topographic map production requires 3D data with high precision and accuracy to represent the real conditions of the...conference paper 2017
- document
-
Gorte, B.G.H. (author), Oude Elberink, S. (author), Sirmacek, B. (author), Wang, J. (author)The European FP7 project IQmulus yearly organizes several processing contests, where submissions are requested for novel algorithms for point cloud and other big geodata processing. This paper describes the set-up and execution of a contest having the purpose to evaluate state-of-the-art algorithms for Mobile Mapping System point clouds, in...conference paper 2015
- document
-
Angel, J.A. (author), Gorte, B.G.H. (author), Vargas Luna, A. (author), Uijttewaal, W.S.J. (author)Experimental work in river morphology has already become a key factor to assess and analyze physical and numerical models that describe bed-level evolution in channels (Paola et al, 2009). Different techniques could be used to measure bed topography in laboratories ranging from traditional to high-technology methods. In this work, the structured...conference paper 2014
- document
-
Verbree, E. (author), De Vries, M.E. (author), Gorte, B.G.H. (author), Oude Elberink, S. (author), Karimiou, G. (author)Water run-off modelling applied within urban areas requires an appropriate detailed surface model represented by a raster height grid. Accurate simulations at this scale level have to take into account small but important water barriers and flow channels given by the large-scale map definitions of buildings, street infrastructure, and other...conference paper 2013
- document
-
Lee, D. (author), Pietrzyk, P. (author), Donkers, S. (author), Liem, V. (author), van Oostveen, J. (author), Montazeri, S. (author), Boeters, R. (author), Colin, J. (author), Kastendeuch, P. (author), Nerry, F. (author), Menenti, M. (author), Gorte, B.G.H. (author), Verbree, E. (author)The impact of 3D geometry complexity on the accuracy of simulating radiative, convective and conductive fluxes in an urban canyon was explored. The research involved the collection of meteorological data in an urban canyon in the city of Strasbourg, France, for input into a 3D model called LASER/F, which simulates the aforementioned fluxes. The...conference paper 2013
- document
-
Sithole, G. (author), Gorte, B.G.H. (author)As lidar point clouds become larger streamed processing becomes more attractive. This paper presents a framework for the streamed segmentation of point clouds with the intention of segmenting unstructured point clouds in real-time. The framework is composed of two main components. The first component segments points within a window shifting over...conference paper 2012
- document
-
Lesparre, J. (author), Gorte, B.G.H. (author)Aerial laser scan data is widely used to produce 2½D digital elevation models automatically. However, creating full 3D city models from this data is a complex task. A simplified 3D model, like a 2½D model with vertical walls will be easier to produce automatically, especially when the model is not produced to look nice, but just to give...conference paper 2012
- document
-
Gorte, B.G.H. (author), Lesparre, J. (author)Point clouds obtained by aerial laser scanning are a convenient input source for high resolution 2.5d elevation models, such as the Dutch AHN-2. More challenging is the fully automatic reconstruction of 3d city models. An actual demand for a combined 2.5d terrain and 3d city model for an urban hydrology application led to the design of an...conference paper 2012
- document
-
Kalpoe, D. (author), Khoshelham, K. (author), Gorte, B. (author)We investigate the application of the photogrammetric approach to measuring the vibration of a model wind turbine in a sequence of stereo image pairs acquired by high speed cameras. The challenge of the photogrammetric measurement of a highly dynamic phenomenon is the efficiency of the point measurement process in a large number of images. We...conference paper 2011
- document
-
Abd Rahman, M.Z. (author), Gorte, B.G.H. (author), Bucksch, A.K. (author)High density airborne LiDAR, for example FLI-MAP 400 data, has opened an opportunity for individual tree measurement. This paper presents a method for individual tree delineation and undergrowth vegetation removal in forest area. The delineation of individual trees involves two steps namely 1) tree crown delineation based on density of high...conference paper 2009
- document
-
Gorte, B. (author)With the rapid improvement of LIDAR systems regarding point density and accuracy in relation to the (application dependent) requirements, robustness, efficiency and automation of the modeling process are becoming more important than achieving the highest possible accuracy and modeling detail from the available LIDAR data. Therefore we opt for...conference paper 2009
- document
-
Khoshelham, K. (author), Gorte, B.G. (author)This paper presents a method for automated pointcloud-to-map registration using a plane matching technique. The registration is based on estimating a transformation between a set of planes inferred from the map and their corresponding planes extracted from the pointcloud. A plane matching algorithm is developed to search for corresponding planes...conference paper 2009
- document
-
Rahman, M.Z.A. (author), Gorte, B.G.H. (author)Tree detection and tree crown delineation from Airborne LiDAR has been focusing mostly on utilizing the canopy height model (CHM). This paper presents a method for individual tree crown delineation based on densities of high points (DHP) from the high resolution Airborne LiDAR. The DHP method relies on the fact that the density of received laser...conference paper 2009
- document
-
Abd Rahman, M.Z. (author), Gorte, B.G.H. (author)A high resolution Airborne LiDAR data creates better opportunity for an individual tree measurement and provides valuable results for more precise forest inventory. This paper presents tree filtering approach that able to separate dominant tree and undergrowth vegetation. The results can be used for a detailed individual tree measurement. This...conference paper 2008
- document
-
Abd Rahman, M.Z. (author), Gorte, B.G.H. (author)The retrieval of individual tree location from Airborne LiDAR has focused largely on utilizing canopy height. However, high resolution Airborne LiDAR offers another source of information for tree detection. This paper presents a new method for tree detection based on high points’ densities from a high resolution Airborne LiDAR. The advantage of...conference paper 2008
- document
-
Van der Sande, C.J. (author), Zanoni, M. (author), Gorte, B.G.H. (author)Change detection with very high resolution imagery is difficult, because 3D objects as buildings appear differently in 2D imagery due to varying viewing angles and sun positions. This research proposes a method to improve change detection by using simple 3D models of buildings. Buildings have been modelled as flat roof or gable roof buildings....conference paper 2008
Pages
- 1
- 2