Data-driven simulation, dimensional accuracy and realism in a landscape visualization tool

Bergen, Scott D.; McGaughey, Robert J.; Fridley, James L.

doi:10.1016/s0169-2046(97)00091-1

Cited by 19 publications

(8 citation statements)

References 14 publications

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“…Using computer-based geographic information system (GIS) models and remote sensing data, we can simulate how particular landscape elements might change over time and space, and investigate different types of future scenarios (Bergen et al, 1998;Maeda et al, 2010;Yuan, 2010). In this study, a Land Use and Land Cover (LULC) model, GEOMOD, which simulates change between two land cover categories, was used.…”

Section: Introductionmentioning

confidence: 99%

Assessing landscape changes and dynamics using patch analysis and GIS modeling

Paudel

Yuan

2012

International Journal of Applied Earth Observation and Geoinfor

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Section: Introductionmentioning

confidence: 99%

Assessing landscape changes and dynamics using patch analysis and GIS modeling

Paudel

Yuan

2012

International Journal of Applied Earth Observation and Geoinfor

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“…Bergen et al 1998;Uusitalo and Orland 2001). Even if extremely photorealistic forest scenes may be obtained by combining botanical models of tree architecture with line graphics or real tree textures presented in virtual reality environments (e.g., Aono and Kunii 1984;Honjo and Lim 2001;Fujisaki et al 2008), the tree and branch-level measurements required by these techniques are time-consuming and expensive.…”

Section: Handling Editor: Jean-michel Lebanmentioning

confidence: 99%

Reconstructing forest canopy from the 3D triangulations of airborne laser scanning point data for the visualization and planning of forested landscapes

Ruotsalainen

2017

Annals of Forest Science

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& Key messageWe present a data-driven technique to visualize forest landscapes and simulate their future development according to alternative management scenarios. Gentle harvesting intensities were preferred for maintaining scenic values in a test of eliciting public's preferences based on the simulated landscapes. & Context Visualizations of future forest landscapes according to alternative management scenarios are useful for eliciting stakeholders' preferences on the alternatives. However, conventional computer visualizations require laborious tree-wise measurements or simulators to generate these observations. & Aims We describe and evaluate an alternative approach, in which the visualization is based on reconstructing forest canopy from sparse density, leaf-off airborne laser scanning data. & Methods Computational geometry was employed to generate filtrations, i.e., ordered sets of simplices belonging to the three-dimensional triangulations of the point data. An appropriate degree of filtering was determined by analyzing the topological persistence of the filtrations. The topology was further utilized to simulate changes to canopy biomass, resembling harvests with varying retention levels. Relative priorities of recreational and scenic values of the harvests were estimated based on pairwise comparisons and analytic hierarchy process (AHP). & Results The canopy elements were co-located with the tree stems measured in the field, and the visualizations derived from the entire landscape showed reasonably realistic, despite a low numerical correspondence with plot-level forest attributes. The potential and limitations to improve the proposed parameterization are discussed. & Conclusion Although the criteria to evaluate the landscape visualization and simulation models were not conclusive, the results suggest that forest scenes may be feasibly reconstructed based on data already covering broad areas and readily available for practical applications.

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“…Landscape visualization has been used for accurately analyzing landscape resources and assessing the visual impact of proposed plans ( [1], [2], [3], [4], [5]). …”

Section: Introductionmentioning

confidence: 99%

Visualization with Google Earth and gaming engine

Wang

Hsieh

et al. 2012

2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications

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Two methods, Google Earth and gaming engine "Unity" were used for landscape visualization. By using both Google Earth and Unity, walk-through simulation is made possible and utilization of both methods is a powerful tool for public understanding and for selection of alternative planning scenarios. The visualization systems with both methods are developed. SketchUp was used to create objects including building and roads. Plants are shown with billboard method or a simple 3D object. This result can be shown on the web. With the case study, the feasibility of both methods was proven. Especially, Unity has shown better performance for the real time landscape rendering or walk-through simulation. In the case of Unity, quite clear images on the ground and near sight were obtained. With the availability of 3D simulation on the Internet in both methods, we can intuitively realize the landscape.

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Data-driven simulation, dimensional accuracy and realism in a landscape visualization tool

Cited by 19 publications

References 14 publications

Assessing landscape changes and dynamics using patch analysis and GIS modeling

Assessing landscape changes and dynamics using patch analysis and GIS modeling

Reconstructing forest canopy from the 3D triangulations of airborne laser scanning point data for the visualization and planning of forested landscapes

Visualization with Google Earth and gaming engine

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