The height accuracy of the collected LiDAR data can be verified by comparing with independently surveyed ground control points on hard, flat, open surfaces. It is essentially just calculating the height differences for all the control points and then determining the height root mean squared error (RMSE) or differences. Most LiDAR processing software have the reporting function built-in. However, plain Microsoft Excel can also do the job (except for extracting the elevation from the LiDAR data).
Tag Archives: geography
Data acquisition: How do I know if this river is been well acquired?
I’ve already entered my river but my imagery was in 2D so… was it well acquired?… First of all, I import my shape (shp) file into Global Mapper (what a great sofware!) and export my vector file as a KML. Import my river.kml file into my brand new Google Earth 5.2 or just double-click itContinue reading “Data acquisition: How do I know if this river is been well acquired?”
GIS+Architectural scenaries. Awesome!
Even from scratch or from dgn/dxf vectorial format’s contour lines you create your own scenario. Then import your model previously created using Sketch-up (this time i used google’s 3d warehouse, thank you Dilbert). Stamp your house using sketch-up sandbox tools. Then fur your scenario as if it was grass… A little of photoshop like clouds andContinue reading “GIS+Architectural scenaries. Awesome!”
Interesting: sketchup, more than a quick visualization tool.
I’ve extracted this information from the very interesting ‘Sketchup blog’ from Google… They talk about something I have always thought it could happen… Sketchup is not only a rapid visualization tool but a CAD like software with visuallization capabilities which in addition is integrated within a world wide used 3D scenary, perfect for Geovisualization andContinue reading “Interesting: sketchup, more than a quick visualization tool.”
ComputaMaps completes 3D Digital Models of stadiums hosting the 2010 FIFA World Cup in South Africa
Hi there, let me please show you guys my latest 3D job. I assume mine is the worst among these incredible 3D models created by my argentinian colleague Lisandro Baibiene (and very good friend by the way) …but I am proud they counted on me and allow me to join this winning team… hurray SouthContinue reading “ComputaMaps completes 3D Digital Models of stadiums hosting the 2010 FIFA World Cup in South Africa”
More of my 3D video edited scenarios.
Please, dont forget to turn on your speakers. Even if i first used a different score and Youtube’s elfs told me not to use it (because of copyright authoring) I have chosen this music from their stuff and this is what I finally got… Hope you like it. Alberto BA Geography MSc GIS and RemoteContinue reading “More of my 3D video edited scenarios.”
Some of my 3D scenarios
Barcelona (Spain), Winnipeg (Canada), Las Vegas (USA), Moscow (Russia), Durban (South Africa), Vancouver (Canada) and Tokyo (Japan)… these were some of my Terrain view’s 3D scenarios published by Computamaps, a South African company I worked in not so long ago. By the way it was one of my best professional experiences ever… I enjoyed joiningContinue reading “Some of my 3D scenarios”
One more 3D building in Avenida de la Vega. Restaurante Asiático SHENG. Madrid, Spain.
I used to have lunch every thrusday there, at the ‘Restaurante Asiático SHENG’. I strongly recommend you ‘entremeses’ (In China you will find them as ‘dim-sum’) and Cantonese duck or Hong Kong duck (this was slightly spicy thou). Very good food, very fast service and pretty cheap menu: 10,7 €… ideal for an IT worker!. TheseContinue reading “One more 3D building in Avenida de la Vega. Restaurante Asiático SHENG. Madrid, Spain.”
Creating and personalizing KML code (placemarks).
First of all, what is KML?. KML is a file format used to display geographic data in an Earth browser, such as Google Earth, Google Maps, and Google Maps for mobile. You can create KML files to pinpoint locations, add image overlays, and expose rich data in new ways. KML is an international standard maintained byContinue reading “Creating and personalizing KML code (placemarks).”
News: Capaware, an opensource 3D geographical Multilayer Framework… First steps…
I discovered this project a few months ago and I’ve been following them very close. It’s always very interesting for freelancers and self taught professionals having an opensource 3D framework to start building your own scenaries not needing to pay a big amount of money for a license… I will do my best to upload here myContinue reading “News: Capaware, an opensource 3D geographical Multilayer Framework… First steps…”
Geovisualization.net 