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Creating Drone Maps

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I have been interested in making maps from aerial drones for a long time. recently my friend Neil Birch purchased a Mavic air to take aerial photos. in order to create flight plan which would take photos at regular intervals I purchased a tool called dronelink. this was a $130 one off purchase which allows you to eastleigh plan the route of a drone to take the images and execute the missions. The tool is very handy in taking aerial photos for mapping as it allows pausing and resuming of flights to change batteries. I did did some research around alternatives to dronelink but all struggled to compare or were extremely expensive. Once I had the images I had to process them into one flat map to be usable.

I have used open drone mapper to create maps. this tool is quite amazing in taking still shots taken from aerial drones and converting them into a solid author mosaic flat.map. The way that I tested opened rowmapper recently was by taking 1090 photos that a friend had taken of sandalwood. the flight had taking photos at 87 mm over an area approximately 700 by 700 m. this was the largest mat I have ever used with open drone.map. after 8 amps while using a server of 16 gigabytes and failing repeatedly comma, I opted with a 64GB beast of a server on gcp. I closely reviewed memory usage during the processing of this map and all of the 64GB were required. you could see that through the map processing process while the memory usage was usually between 10 and 20 GB of RAM there were constantly peaks of between 40 and 55 GB. I also used 200gb of persistent memory but only probably needed 100gb for the 1000ish photos and processing. the open drone map of documentation there is a guide to the size of server for the number of images you are trying to process I would recommend following this guide. the testing on a server on gcp was very handy as I was able to dynamically change the amount of persistent memory and also ram what without having to reinstall the open drone mapper software or reload images. this tool also has great tools for agriculture as the default processing has a plant health map. the tool also allows including a specific plugin for analysing agricultural test plots which allows counting and other tools.