Imagery refers to raster based datasets acquired from sensors on satellites or aircraft.
3
votes
3answers
85 views
Pictometry Accuracy and/or Alternative
I'm looking for some insights into the accuracy (x,y,z) of oblique imagery from Pictometry in terms of providing accurate measurements for property evaluation. Is the high cost of this product ...
2
votes
0answers
128 views
Automated testing for GIS apps
There are several commercial and opensource tools for regression automation. While many of them could be employed to test GIS apps, they fall short, at times, dealing with the unique characteristics ...
2
votes
0answers
72 views
Are there any naming conventions for aerial imagery?
Do GIS projects involving high resolution NAIP quarter quad imagery typically use the USGSID code and qq (e.g. 3910232ne) or the GNIS code and qq (e.g. 39102e1ne) to organize data? I can't seem to ...
2
votes
0answers
593 views
Clipping MrSID files
Does anyone have experience subsetting/clipping a large NAIP imagery file in MrSID format? Some of the NAIP files we have are by county and they have really large file sizes.
The files are from the ...
1
vote
0answers
124 views
Raster satellite images for QGIS
When I try to apply a downloaded GIS satellite (t=rimage to Quantum, it doesn't seem to open properly. There must be a step-by step description on how this would be done effectively. Can anyone tell ...
1
vote
0answers
171 views
Assign Custom Band Combination To Image Catalogs In ArcGIS
I have an image catalog composed of 4 band rasters. I would like to use the same image catalog, and set custom renderers for a true color and false color combination and save each of those catalogs ...
1
vote
0answers
226 views
Recomputing footprints on old satellite imagery
I am trying to create an image service out of some 1976 satellite imagery. But first I need to get all of the no data cells out of my mosaic dataset. I have tried to recompute the footprints on my ...
0
votes
0answers
35 views
How to perform Neural Network Classification?
I'm using ENVI 4.8.There are some problems on parameters for Neural Network in Envi.(Envi-Classification-Supervised-Neural net)
There are 5 bands and 12 classes that i have used for my study .
The ...
0
votes
0answers
55 views
Why does publishing a Map Service from MXD turn Imagery Grey
When creating a map service from an MXD I'm running into an issue where my imagery is turning completely grey.
I start with an MXD which has my mosaicked image and I publish it to a map service (no ...
0
votes
0answers
85 views
Change Detection on bitemporal multispectral images - data simulation
I want to try several "backgrounds" for change detection on bitemporal images (satellite images of the same place but in different moments in time). Images consist of 5 bands. I have python ...
