In my previous article I highlighted the importance of ground control for aerial drone surveying. You really can’t provide a GIS ready product unless it is coordinated by ground control. Or can you? Now I am not going to start advocating not using ground control but what if you can’t acquire ground control for your given area of interest. Are there other options?? Well yes there are. They are not as accurate as supplying surveyed ground control but they will provide a product which can be used in your system if you just need to view a mosaiced image.
In my position I talk to a lot of different clients about their requirements for drones. I hear of clients wanting high resolution aerial photography, elevation models, performing volumetric analysis, outputting point clouds for updating engineering designs, change monitoring and inspection scenarios. Every client has different thoughts and ideas on how they best make use of their investment. In all of these great ideas I often find that there is a great void between the understanding of what a client is looking for and their understanding of what is achievable.
Whether you purchase a helicopter, smaller quad copter or a fixed wing drone, all are delivered a flight control unit and flight management software. You’ll often though have to supply your own Smart Phone or tablet to run the software. However, it is not until you decide on exactly what you want to use the drone for, does the realisation of what is really required to achieved those results become apparent. If you are going to use it for talking single aerial pictures or video then the manual flight controller might be sufficient, however if you want to be able to use the drone for comprehensive orthomosaics or elevation modeling then there are key considerations that are required.
In previous blogs, I have spoken about how imagery can be utilised within the ArcGIS Platform and how it can be analysed. Through all this it has been about imagery can be viewed downstream. What about the prepossessing or specialised analysis not through web services? Well this is where ArcGIS Pro comes in.
In 2017 Esri has stated that their goal is for ArcGIS Pro to be functionally equivalent or better than the current toolsets in ArcMap. To this end in ArcGIS Pro 1.4 Esri have included a new core tab, Imagery. Core tabs are always on and accessible unlike layer specific tabs which only appear when an entry is selected in the Table of Contents.
Harris Geospatial has released their newest version of ENVI 5.4 and IDL 8.6. With every release Harris Geospatial is improving their platforms to ensure that ENVI and IDL remain at the forefront imagery Analysis. Here is an over view of all the NEW changes to the Harris Geospatial product suite.This post will provide an overview of the following; Licensing changes, new ENVI functionality and new IDL functionality. Continue reading
When the term drone is used it often conjures up images of installations being destroyed by laser guided bombs or unmanned military surveillance aircraft being used to spy on strategic targets. However, the drone of today is more than this. They have come down in price and size. To the extent that we can now purchase a drone or as CASA prefers a Remotely Piloted Aircraft System (RPAS), down at your local electrical store for a reasonable price.
In September CASA is introducing new regulations around the use of RPAS that make it easier for everyone to fly a RPAS. http://bit.ly/1sNxnt4 These consumer type RPAS will become more prevalent not only in the hobbyist field but also in the commercial field.
Esri is strategically placed to take advantage of this growing market. Recently released Drone2Map for ArcGIS (http://www.esri.com/products/drone2map) takes geolocated images from RPAS and creates professional imagery products for visualisation and analysis in ArcGIS.
So you’ve decide to go beyond the image basemap and extend your image service by adding some functions to your image service. You have NDVI’s, band ratios and band remaps available through your rest end point of your image service. Now how do you make these accessible to the end user?
So you’ve loaded your image into ArcMap and the image displays incorrect colour or there is no data values around the outside of the image that is masking crucial features in your map. How can you quick rectify these annoyances? Well this is where the Image Analysis window comes in handy.
Introduced in ArcMap 10.1 the Image Analysis Window is accessed from the Display menu in ArcMap . The Image Analysis window supports the analysis and exploitation of image and raster data in ArcMap, with a collection of commonly used display capabilities, processes, and measurement tools. Essentially all your image needs in one place.