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![Page 1: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/1.jpg)
MIXING, BLENDING, MERGING OR SCRAMBLING TOPOGRAPHIC MAPS AND ORTHOIMAGERY
IN GEOVISUALIZATION ?
Charlotte Hoarau, Sidonie Christophe, Sébastien Mustière International Cartographic Conference (ICC) - Tuesday, August 27th 2013
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CONTEXT AND OBJECTIVE OF MY PHD
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4 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Aims of my PhD
Orthoimagery Topographic map
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5 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Aims of my PhD
How to combine them to build in-between visualizations ?
Orthoimagery Topographic map
![Page 5: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/5.jpg)
6 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 6: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/6.jpg)
7 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 7: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/7.jpg)
8 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 8: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/8.jpg)
9 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 9: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/9.jpg)
10 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 10: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/10.jpg)
11 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Continuum of « In-between » representations build with the French Geoportail
![Page 11: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/11.jpg)
12 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-Between »visualizations
Orthoimagery Topographic map
![Page 12: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/12.jpg)
13 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
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14 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
![Page 14: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/14.jpg)
15 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
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16 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
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17 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
![Page 17: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/17.jpg)
18 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
![Page 18: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/18.jpg)
19 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
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20 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Browsing « In-between » representation
Orthoimagery
Topographic Map
How to provide the more useful information to the user?
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PERSISTENT PROBLEMS IN CURRENT VISUALIZATIONS
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22 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Layer overlaid
Map design issue : Orthoimagery is dark and visually complex
Difficulty to symbolize vector layers in consistency with different backgrounds
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23 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Side-by-side co-visualizations
Swipe Synchronized visualization
Magnifier
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24 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Layer transparency [Hoarau, AutoCarto 2012]
No consensus in designing mixed visualizations by transparency
Using transparency leads to data scrambling
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25 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Toponym representation
© Géoportail, IGN France © Bing maps, Microsoft © Google maps
[Hoarau & Escrihuela 2013]
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DESIGNING IN-BETWEEN REPRESENTATIONS
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27 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Map design issues
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28 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Map design issues
How to portray vector data overlaid to an imagery background ?
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CAMOUFLAGE METHOD
Making maps more realistic
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30 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
Using landscape colors to make maps more realistic
[Christophe, Perret, Hoarau 2013]
[Patterson 2010]
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31 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
Extracting colors from the orthoimagery
Re-injecting them in the map specification
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32 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
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33 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
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34 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
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35 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Camouflage » method
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PATCHWORK METHOD
Keeping the best of each visualization
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37 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Patchwork » method
Keeping the best parts of each initial visualizations
Master Student [J. Gautier, 2012]
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38 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Patchwork » method
Keeping the best parts of each initial visualizations
Master Student [J. Gautier, 2012]
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39 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Patchwork » method
Keeping the best parts of each initial visualizations
Master Student [J. Gautier, 2012]
![Page 39: ICC 2013 : Mixing, blending, merging or scrambling topographic maps and orthoimagery in geovisualization ?](https://reader031.fdocuments.in/reader031/viewer/2022030307/58e8d16b1a28abb3398b56ef/html5/thumbnails/39.jpg)
40 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
« Patchwork » method
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41 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Camouflage by swiping
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ADAPTIVE SYMBOLIZATION
Orthoimagery as a specific background layer
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43 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Adaptive symbolization
Different visual impact of background layers
« Inversion » of conventional colors
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44 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Local adaptive symbolization
Wide variety of colors in an orthoimagery background
Local adaptation of the color of the roads
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45 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Local adaptive symbolization
Wide variety of colors in an orthoimagery background
Smart halo around the roads
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47 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
In-Between Steps
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48 Charlotte Hoarau 26th International Cartographic Conference, Dresde – 27/08/2013
Conclusion & Further Works
Combining topographic maps and orthoimagery
is a great opportunity…
and a big challenge !
And Now ?
Combine methods together in an automated geovisualization platform
Usability tests of resulting co-visualizations
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« In-between » cartographic representations from the abstraction of topographic maps to the realism of orthoimagery
Charlotte Hoarau @CartHoarau
This work is granted by the French National Research Agency,
within the project, with the reference ANR-12-CORD-0025.