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-https://www.mapsmadeeasy.com/point_estimator you can use this to make a flight plan set variables to what you want make sure to pick inspire/phantom 3 as camera near the bottom, you can export this plan as kml for apm. or if you are more adept you can use the gis software of your choice to create a kml grid flight path for upload to litchi in the following ...


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Something is way off with your dY values. If I understand correctly, your image is just a scan from a paper map, but it is for some reason defined with EPSG: 3857. I would suggest resetting the georeferencer, define the image CRS to be the same as you project (4326 in this case) and the proceed to georeference it again.


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You can use the QuickMap Services plugin to get aerial background maps in QGIS. You have to activate additional sources with Web -> QuickMapServices -> Settings, More services, Get contributed pack. BTW the Openlayers plugin still works for me in QGIS 2.14. You might need to update the plugin to version 1.3.6. Apart from the plugin, many surveying ...


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You can add Google Aerial basemap to you QGIS canvas using Google TMS. Save the following as .xml file and load it as a raster in QGIS <GDAL_WMS> <!-- Data is subject to term of use detailed at http://code.google.com/intl/nl/apis/maps/terms.html and http://www.google.com/intl/en_ALL/help/terms_maps.html --> <Service name="TMS"> ...


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Pix4D did a project called Chillon Project where they did exactly what you are looking to do. Here is a link to their project on YouTube. Additionally they didn’t just rely on just the UAV to capture the imagery, but utilised terrestrial photos captured using hand held devices such as Go Pros and Smart Phones. The results are really cool!


2

I think a way to do this is VisualSFM to do the matching of the photos (the stronger the GPU the better) and creating a dense point cloud and MeshLab to create a textured triangulated model from the point cloud. VisualSFM: http://ccwu.me/vsfm/ http://ptak.felk.cvut.cz/sfmservice/websfm.pl?menu=cmpmvs (cp. especially the 'Technology' site and the paper ...


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I've done this before with success using the Photosynth Toolkit (http://www.visual-experiments.com/demos/photosynthtoolkit/), except instead of a drone I was hanging my head out of a small plane taking pictures of the downtown area of a small town. You could also check out Visual SFM (http://ccwu.me/vsfm/); I haven't used it but it seems to be another tool ...


0

My png image had white space around the edges which caused my GCP offset problem. A full answer to plotting a "density" map and generating tiles can be found at http://stackoverflow.com/questions/35185554/generate-density-plot-of-big-data-set-to-overlay-in-google-maps


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Whenever you handle large amounts of raster-data it is comfortable to use a raster-catalog. The raster-catalog is an option of the file-geodatabase format. You can create the database via right-clicking on your folder in the catalog-window where you want to have the database, just choose "new" -"file-geodatabase". Then choose "new" - "raster-catalog". The ...


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This is still a problem in QGIS ESSEN 2.14.0 I normally use two screens when I georeference and it seem that QGIS remember this somehow. To find my georeference window I have to change my setting to "extend this displays" despite not having a second screen hooked up. Then go fishing for the window to drag it into you working screen.


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I think the closest available tool is the GRASS tool i.points.auto which aims to automatically generate ground control points to geocode rasters. It is available for GRASS 7.0 so it may also be available in QGIS 2.14. Otherwise you may need to use GRASS GIS 7 which already comes bundled with QGIS 2.14.


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You have specified degrees as units, but not added any information what coordinates your corner points have. Apart from that, +units=d is not listed with proj -lu and might be ignored. You may try gdal_translate with -a_ullr, or add GCP points with -gcp.


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The simplest way to mosaic without georeferencing is to use an image processor rather than a GIS. For instance in GIMP do the following (photoshop has similar tools): Open all your images as layers (not individually). Expand the image size to match the total mosaic size Turn on view grid and set the grid size to equal the dimensions of one of your ...


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If, when you say "unsynchronized", you mean that the raster cells don't align properly, then you should look at using the Snap Raster property in the ArcToolbox/Geoprocessing environment settings. That will help ensure that the pixels line up exactly. ...


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Just tossing this in as part of the discussion on tiles, cached tiles, georeferencing, etc. Tiling schemes from what I know don't use an XY georeferencing system per se... For example, when you load the ESRI basemap into QGIS, it will create a tile stache folder structure like this: When viewing the top level images, you have requested the tiles, and ...


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A few days after posting this question I finally found the procedure the ESRI rep had mentioned. Here is the link https://www.arcgis.com/home/item.html?id=133a6dc35a5f45d094b73effa68fefcb It is not the best solution but it is available if need be.


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You can set up a local coordinate system, based on the origin of your local grid, ideally your GPS reference point. Follow my advice here: Using customized Coordinate System for Archaeological site data


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The first thing you should do is to check what acual scale your map has after you scanned it. When you know that your grid has 5x5m you can count the pixels that are within in the 5x5 grid to get your scale. (consider to count in x and y direcetion as your scan might be a bit distorted) You can count the pixels "by hand" or for example within GIMP you got a ...


-1

I also had an error pop up ("Error – Failed to save raster dataset") when I attempted to rectify + save the image from the georeferencing toolbar. For me, the problem was that the "Name" field. The file name I was putting in the "Name" field was too long. ArcGIS is pretty picky about naming, so one of the first things I check when troubleshooting is that ...


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You can do all of this with the "Project Raster" tool (in "Data Management Tools" > "Projections and Transformations" > "Raster"). There are a few things to consider here. If one of the rasters has a larger cell size, and it looks like one has a cell size of 98 (I'm not sure which one yet), you would do well to resample one of the rasters to the extent of ...


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If the shapefile has real-world coordinates and the image doesn't, we georeference the features shown in the image to matching features in the shapefile to pull the image into the same real-world coordinates. On the other hand, if the image has real-world coordinates and the shape-file doesn't, then we can spatially adjust the features in the shapefile to ...



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