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Advocate Harbour Color Shaded Relief Map

A new large 8 foot color shaded relief map that I have created has been posted for display at a local tourist kiosk in Advocate Harbour, Nova Scotia. Now both tourists and residents of the area will be able to gain a better appreciation of the topography that borders the Northern Bay of Fundy region

Bouctouche New Brunswick LIDAR

I created and presented the following poster displaying LIDAR CSR surface modeling of Bouctouche, New Brunswick as part of my Applied Geomatics graduate work at COGS in 2004. The inset is a 3D perspective view of the image represented by the large blue arrow.

LIDAR surface modeling of Bouctouche New Brunswick

Color Shaded Relief Models

Traditional images in geomatics are often two dimensional, meaning that all data in the image can be referenced by X and Y coordinates.
Three dimensional color shaded relief (CSR) perspective view of high resolution LIDAR

Three dimensional images (3D) incorporate a third dimension (the Z component) which represents the elevation or depth aspect of the data. To incorporate it into an image requires creating special geomatics value added products that allow users to perceive the presence of the third dimension into a traditional two dimensional setting (because most paper and computer screens are flat or two dimensional).

A color shaded relief (CSR) utilizes chromo stereoscopic techniques to help emphasize the depth of the Z dimension from traditional shaded relief models that already portray the presence of an elevation difference. Using carefully edited RGB (red, green, blue) pseudo colors and then encoding them into the shaded relief image provides the user with an even more enhanced feeling that they can perceive a third dimension from a two-dimensional medium (also helping to quickly decipher between high and low elevated regions). When a feature of the same color in the image is shaded darker than the shade of its background, then the background color will predominate in determining its perceived depth position in the image.

Color shaded reliefs utilize chromo stereoscopic techniques to help emphasize the depth of the Z dimension from traditional DEMs

There are several different software packages that can be used to create CSR models, but I have found that Geomatica software by PCI Geomatics has proven to produce some of the better results in CSR models generated from DEMs. ChromaDepth 3-D glasses can often be used to further enhance the three dimensional feeling as well. These glasses use sophisticated micro-optics technology to transform color images into stereo 3-D. If you do not currently have PCI Geomatica then you can obtain a trial copy of it from their web site; then follow the steps outlined in the following CSR tutorial.

Here are some more Examples of some of the many color shaded relief (CSR) models that I have created

Orthophoto & LIDAR CSR for New Brunswick

Color Shaded Relief related documents:

 

Digital Terrain Modeling – Color Shaded Relief Models

Traditional images in geomatics are often two dimensional, meaning that all data in the image can be referenced by X and Y coordinates.

Three dimensional color shaded relief (CSR) perspective view of high resolution LIDAR

Three dimensional images (3-D) incorporate a third dimension (the Z component) which represents the elevation or depth aspect of the data. To incorporate it into an image requires creating special geomatics value added products that allow users to perceive the presence of the third dimension into a traditional two dimensional setting (because most paper and computer screens are flat or two dimensional).

A color shaded relief (CSR) utilizes chromo stereoscopic techniques to help emphasize the depth of the Z dimension from traditional shaded relief models that already portray the presence of an elevation difference. Using carefully edited RGB (red, green, blue) pseudo colors and then encoding them into the shaded relief image provides
the user with an even more enhanced feeling that they can perceive a third dimension from a two-dimensional medium (also helping to quickly decipher between high and low elevated regions). When a feature of the same color in the image is shaded darker than the shade of its background, then the background color will predominate in determining its perceived depth position in the image.

Many different software packages can be used to create CSR models, but PCI Geomatica has been proven to produce some of the better results in CSR models generated from DEMs. ChromaDepth 3-D glasses can often be used to further enhance the three dimensional feeling as well. These glasses use sophisticated micro-optics technology to transform color images into stereo 3-D.

Color shaded reliefs utilize chromo stereoscopic techniques to help emphasize the depth of the Z dimension from traditional DEMs

Below are link to pages that contain several examples of Color shaded relief models that I have created for various projects and clients. PCI Geomatica has been proven to produce some of the better results in CSR models generated from DEMs. ChromaDepth® 3-D glasses can often be used to further enhance the three dimensional feeling as well. These glasses use sophisticated micro-optics technology to transform color images into stereo 3-D. If you do not currently have PCI Geomatica software then you can obtain a trial copy of it from their web site; then follow thesteps outlined in the following CSR tutorial, you can also use ArcGIS and other GIS software as well.

A perspective view with a color shaded relief model

Color Shaded Relief related:

 

 

Digital Terrain Modeling

Digital Terrain Modeling is the process of simulating or representing the relief and patterns of a surface with numerical and digital methods. It has always been an integral component to geology related fields such as geomorphology, hydrology, tectonics and oceanography but over the past decade has also become a major component to non geophysical applications such as GIS modeling, surveying and land use planning.

Terrain Models are derived from data represented by digital elevation models (DEMs) and can include shaded relief models, slope and aspect models, perspective scene generation, and drainage basin analysis (and other models).

Color Shaded Relief Model – Gatineau, Quebec

Color Shaded Relief Model of the Gatineau foot hills of Quebec

 

The above image is one of several color shaded relief (CSR) models I created of Gatineau foot hills of Quebec. The city of Ottawa is featured in the national capital region near the bottom center of the image across the river just south of Gatineau Park. This was one of the color shaded relief models submitted for use with an online interactive web GIS mapping project for the municipal of Collines-de-l’Outaouais, Quebec. The image below is the actual one that is currently featured in the web GIS project.

The Gatineau Hills are part of a geological formation in Canada which represent the foothills of the Laurentian Mountains which stretch east through Quebec, beginning north of Montreal and joining up with others into Vermont and New Hampshire. The geology of Gatineau Park, which encompass these foothills, is related to the Eardly Escarpment, which is a fault line that lies along the southern edge of the hills. This escarpment makes the part an attractive location for rock climbers and hikers, offering a beautiful view of the relatively flat fields below, which extend to the Ottawa River.

Color Shaded Relief Model of the Gatineau foot hills of Quebec

 

 

Color Shaded Relief Model of Vancouver Island

Color Shaded Relief Model of Vancouver Island, British Columbia

The above image is a Color shaded relief (CSR) model created using a DEM of Vancouver Island, British Columbia using PCI Geomatica software. The change in relief ranges from 0 m (blue) up to over 2200 m (red colors). Vancouver Island is a large island in the province of British Columbia off the Pacific coast of Canada, it is the largest island (32,134 square kilometers) on the western side of both North and South America.

This image has been published in various books, University Course material (such as UVic) and papers such as the Vancouver Sun & the Montreal Gazette

More examples of Color shaded relief (CSR) models …

Color Shaded Relief Models – Pointe Du Chene, New Brunswick

Color Shaded Relief Models of Pointe Du Chene, New BrunswickColor Shaded Relief Models of Pointe Du Chene, New Brunswick with flood
The above two images were created for my LIDAR flood modeling graduate research project. The first image is before the flood scenario; featuring a color shaded relief perspective view pointing south east from the Northumberland Strait landwards across the Pointe Du Chene wharf. The second image is of the same color shaded relief perspective view but features a 2.55 m flood level super imposed on top of it.

The 2.55 m flood level was an actual recorded storm surge water level that effected this area during a winter storm on January 2001. The two images below show the same flood level and area but from an overhead aerial view. The first image is with an orthophoto and the second image is with the color shaded relief.

Pointe Du Chene, New Brunswick with floodPointe Du Chene, New Brunswick with flood

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