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Questions tagged [orthophoto]

An aerial photograph geometrically corrected and adjusted for topographic relief, lens distortion, and camera tilt - such that the scale is uniform.

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3 votes
0 answers
563 views

Seeking Geospatial Tools for SketchUp? [closed]

I was wondering if anyone knows of geospatial tools that work in SketchUp? I know if GeoSketch, which allows a user to import ortho imagery, DEMs, shapefiles and GPS enabled photographs into ...
1 vote
1 answer
1k views

Applying DEM elevation adjustment parameters in QGIS?

I have a nice DEM, created from UAV data, which I want to process further in QGIS, my platform of first choice. In order to represent the evelation of each pixel correctly, I have to adjust the '...
Arnoud Cuppens's user avatar
1 vote
1 answer
662 views

ArcScene 10.1 Orthophoto Visualization Issue

I am attempting to visualize an orthophoto in ArcScene 10.1 at the same resolution it is at in ArcDesktop 10.1. I have set the "Quality enhancement for raster images" to it's highest extent. But, the ...
jwx's user avatar
  • 713
1 vote
1 answer
1k views

Why is the imported TIFF file distorted with noise in Quantum-GIS?

I've a TIFF-file. Loading the raster image into QGIS does not display correctly. (Using the Add raster layer button.) It seems to be distorted with noise. See image below: The source of the TIFF file ...
q9f's user avatar
  • 2,156
5 votes
4 answers
7k views

Looking for an efficient way of digitizing building footprints using orthophotos and ArcGIS 10

In the past I've used PCI Geomatica to do something similar using the softwares classification functionality. Are there some tools/tricks in ArcGIS that will partially automate the process. I remember ...
dchaboya's user avatar
  • 974
3 votes
3 answers
3k views

Batch script converting and resampling orthophotos

I would like to convert more than 300 orthophotos produced at scale 1:8.000 with a pixel size of 0.8m X 0.8m from Ecw format to Tiff format and after resampling pixel values. My aim is to batch ...
Gabriel Giroux's user avatar
9 votes
3 answers
5k views

Remove Collar from ECW File (Orthophoto Mosaic)

Maybe i'm missing a basic concept when it comes to manipulating/removing values from an RGB orthophoto mosaic. Is it possible to completely eliminate the collar (black background) from an orthophoto ...
dchaboya's user avatar
  • 974
3 votes
5 answers
3k views

Free high-resolution Orthophotography for Quebec

Is anyone aware of free high-resolution orthophotography for Quebec? Something 1m resolution or greater would be ideal. I'm looking for imagery to use in a standard GIS as files (so not as WMS or ...
Darren Cope's user avatar
  • 6,556

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