Interactive Simulation and Visualization of Large-Scale Flooding Scenarios (Juli 2012)

1 Challenge the future

Interactive Simulation and Visualization of Large-Scale Flooding Scenarios

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Introduction

Brisbane/ Queensland: Getty / Jonathan Wood Indonesia: NASA

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Introduction

areas with elevation above (green) and below (red) sea level

Population density in areas of different elevation levels in the Netherlands

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Introduction

Dykes and artificial structures for protection, channels and rivers for water distribution

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Introduction

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Topic Overview

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Real-time 3D Visualization of massive LiDAR Point Clouds

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Real-time 3D Visualization of massive LiDAR Point Clouds

9 Challenge the future

Real-time 3D Visualization of massive LiDAR Point Clouds

Local Feature Size

Scale-Space [Perona1990]

Gradient Magnitude-based Features [Zhou and Sun]

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Real-time 3D Visualization of massive LiDAR Point Clouds

Feature-Adaptive Triangulated Irregular Networks [Huang2009]

Tessellation

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Real-time 3D Visualization of massive LiDAR Point Clouds

Labelling [Moosmann2009]

too coarse

too fine

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Real-time 3D Visualization of massive LiDAR Point Clouds

Point Cloud Compression

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Interactive, adaptive Simulation of Flooding Scenarios

simple flow models small scales

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Interactive, adaptive Simulation of Flooding Scenarios

better computational models, medium-size computation horizon [Brodtkorb2009]

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Interactive, adaptive Simulation of Flooding Scenarios

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Interactive, adaptive Simulation of Flooding Scenarios

general public

decision makers

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GIS Integration

Img. 1,2 & 5: Pennsylvania State University; Bajwa2002; Wang2010

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Multi-Scenario, Comparative Simulation Visualization

momentary workflow

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Multi-Scenario, Comparative Simulation Visualization

target workflow

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Multi-Scenario, Comparative Simulation Visualization

Uncertainty Visualization [Hengl2004]

Computational Steering

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Multi-Scenario, Comparative Simulation Visualization