An Unmanned Aerial Vehicle (UAV) or Drone is an aircraft without a human pilot aboard.

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Orthophoto generation algorithm

I want to generate orthophoto from images captured from UAV. As input I have "point cloud" GPS coordinate + RGB color of points, is it enough information for orthophoto generation? I'm looking for ...
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2answers
62 views

Drone aerial imagery to QGIS

I used Phantom DJI Standard 3 drone for some aerial photos of an archaeological site. When I view the properties of the jpeg file, it contains Longitude (like this: 22; 14; 37.701258239) and Latitude (...
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Tool to modify position of orthomap (.kmz)?

I load and visually inspect orthomap from UAV, for this task I use Google Earth, but problem is that orthomap is not perfectly aligned to satelite maps. Is there any interactive tool that can modify ...
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42 views

Calculating Excess Green / Excess Red vegetation indices using Adobe CS6

I am undertaking an agricultural mapping project in which I'm imaging a field using a UAV equipped with a 16.1MP RGB digital camera. I am attempting to process the images to yield vegetation indices ...
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4answers
202 views

Creating photogrametric point cloud of an object from distributed photographs, here: Making accurate 3D model of building using UAV imagery?

Is there a way of creating a photogrametric point cloud from a set of densly distributed photographs of an object? Application: I am trying to investigate if creating a 3D model (point cloud) of the ...
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1answer
28 views

Can targets placed on the facades of a building be used to increase the accuracy of a point cloud of a building generated from Drone/UAV/UAS imagery?

Can targets (used for registering point clouds) mounted on a building be used to increase the accuracy of a point cloud generated from UAV imagery?
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1answer
209 views

ESRI Drone2Map - how to use “texture” image.

ESRI's Drone2Map beta produces various outputs; LAS, dem, hillshade, orthomosiac, etc. One of these is "Texture.jpg" file. This image is not projected but it looks like as if I should be able to ...
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1answer
125 views

Looking for real-world DJI Phantom 3 Professional sample geo-tagged images for testing

I am looking for sample DJI Phantom 3 Professional imagery for testing purposes with the Drone2Map for ArcGIS Beta software. So far I am finding the application very polished and easy to use but I am ...
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2answers
38 views

File size increases significantly after re-projecting

I have processed some aerial imagery using mapsmadeeasy.com, and georeferenced the image using the web tool within MME. However, this is not a very accurate means of georefencing, and delivers a ...
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1answer
125 views

Can't generate true orthophoto from my software

I am a GIS specialist and a surveyor. Lately I'm trying to use as a surveying tool my DJI Phantom 3 pro combining with different software for generating DEM, DSM, 3d model and orthophoto. But I can't ...
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1answer
129 views

How do I assign elevation labels to a custom set of points in QGIS?

Im trying to create topographic surveys using georeferenced images from a drone and a DEM/orthomosaic which has been created using Photoscan. I've managed to create contours and label them with ...
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128 views

Counting number of plants in area using images from UAV?

How do I count the number of pineapple plants in a 1-hectare block? I have heard of these algorithms but I don't know how to do it. I'm still a newbie of QGIS, ArcGIS and ENVI. I have the NIR, RGB, ...
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1answer
109 views

Reset a base elevation in Pix4D?

Does anyone know how to set a baseline elevation in Pix4D, or is that something that has to happen on the drone-capturing side? The reason is that I have an area which is flown with LiDAR, several ...
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1answer
102 views

Loop NDVI calculations for hyperspectral datacubes in R

I am writing a script for the processing of different hyperspectral datacubes. The datacubes contain flight lines that I've recorded with a UAV. In total there are 10 flight lines that need to be ...
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2answers
152 views

Convert jpg with exif header into geotiff

I have bunch of jpgs with exif headers like this: Size is 4000, 3000 Coordinate System is `' Metadata: EXIF_ApertureValue=(3.625) EXIF_ColorSpace=1 EXIF_ComponentsConfiguration=0x1 0x2 0x3 ...
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1answer
231 views

Reaching cm (inch) level elevation precision using drones

A road construction firm needs altitude data of road path before and after the construction and the error should be less than 3 cm (2 inch). Normally, they put a ground station and workers manually ...
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2answers
170 views

Legal Requirements for using Drones/UAS/UAV for GIS

Can anyone give me a better idea of the specific requirements for commercial use of drones for GIS work? What would be required of the pilot? Edit: I'm also looking for more insight into when the ...
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46 views

Referencing a raster by center coordinate

I'm concerned with producing mosaics from UAV thermal IR video frames. I exported several several frames containing the temperature values in a matrix (.csv). From camera specifications and flight ...
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1answer
135 views

UAVs and using ground control

I have been having a conversation at the office about whether to use ground control when using drones/UAVs to capture aerial images. The ground control that I am referring too is any permanent survey ...
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2answers
4k views

Using Phantom 3 Pro to capture aerial imagery for small site plans and derive DEM? [closed]

I am curious if this consumer UAV can be used to capture imagery for further processing to stitch seamless imagery and to use as input into stereo/photogrametry software to create reasonably accurate ...
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1answer
270 views

Create web map tiles from large images

I have 70Gb of raster data from drone photography that I need to serve via Openlayers. The data is currently provided as georeferenced jpegs each is 175Mgb in size. What is the best strategy to cut ...
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0answers
480 views

Software for image orientation (aerial triangulation)

I'm trying find a software which can orient an UAV Imagery using GCPs (Ground control points in UTM Coordinates system) and Camera calibration (only camera focal length, p1,p2, k0, k1, k2, k3 and ...
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2answers
147 views

Stereoscopy Software

I'm learning the Manual Photogrammetry process, Stereoscopy, to Process UAV Imagery. I'd like to know about others software, especially open source or low cost. ERDAS Imagine, Erdas Extensions for ...
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3answers
561 views

UAV Image collection Procedure

Do we need to collect ground control points before flying drones or do the drones collect control points during their flight ?
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3answers
2k views

Determining bare earth from unclassified LAS file?

I have data in LAS format with RGB values created from Aerial photogrammetry using a UAV. I am trying to find a solution to extract the bare earth to create my DTM from the DSM. I have tried SAGA, ...
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3answers
528 views

How to create a TIN from UAV images or Google Earth images

I'm starting using ArcGis and I would like to create a TIN from UAV images. What are the steps that I have to follow? I think: Mosaic the images, merge o join. (I have 40 aereal pictures in .JPG) ...
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2answers
935 views

georeference and orthorectification of aerial photos

I am trying to process photos taken with a tetracam ADC micro camera placed on a UAV. I have GPS coordinates and mavlink logs providing roll, pitch and yaw of the UAV. I am having a real hard time ...
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157 views

creating GIS data directly on camera images

If I'm taking few photos with superimposition and enabling a stereo system for images pairs, Is there a software for 3D or 2D calibrating that will enable then creating GIS vector data directly on ...
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1answer
4k views

What lens and camera settings are recomended for UAV (drone) aerial imagery capture? [closed]

I have been toying with the idea of purchasing/bowrrowing a UAV and attempting to capture my own aerial imagery. I have pretty good DSLR Canon gear and several lenses but I am wondering what lens, ...
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1answer
1k views

Is there an alternative for ERDAS IMAGINE AutoSync (eventuelly for QuantumGis)?

I had the possibility to work with a Demo-Version of the ERDAS IMAGINE module AutoSync. I have different geo-rasters (i.e. geoTIFFs) produced by UAV photography and which have to be matched the best ...
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4answers
4k views

Are there any open source tools for the processing of UAV images?

I have aerial photographs taken by a Unmanned Aerial Vehicle (UAV). I want to do ortho mosaicing and DEM creation to do volumetric analysis. Are there any open source tools that process the UAV images?...
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3answers
283 views

Is there a software package that allows users to create map tiles?

We would like to create map tiles to be used via mobile device in the field in an offline environment. The imagery will come from our personal collection of aerial images taken via UAV.
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1answer
294 views

Counting animals using near infrared imagery from a drone

I am playing around with an idea of using a near infrared camera to fly transects to count animals on the ground. I have been involved in such work earlier, but on bigger mammals and observer based ...
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4answers
3k views

What software to use for making digital elevation models from UAV aerial imagery?

I have a an unmanned aerial vehicle (UAV, also called a drone) and would like to use it to create a digital elevation model and orthomosaic over a smaller area (10 km2). My platform will be able to ...
10
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3answers
1k views

What Open Source (command line/API) method is there to orthorectify and georeference an aerial image given telemetry data?

How can I take an image and orthorectify it automatically with open source software? The information associated with each image is: camera specs latitude, longitude, elevation of the camera ...