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Topics - raphaelfp

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General / Specifications to reduce processing time
« on: September 27, 2019, 07:59:35 PM »
Hi, I’m part of a team who uses Drone Deploy for flight planning in a cartographic boundary project, and it covers a considerable amount of area in South America. Capturing the images hasn’t been a problem at all so far, however we’re going through a hard time when it comes to processing them on Agisoft Photoscan Professional Edition (version 1.2.0 build 2152, 64 bit), because it’s running on a workstation which is too good for a home computer, and too unfit for such a tough task.

Our first attempt covered an area of 4,25 km², mapping each square kilometer (containing 1329 photos) at a time because of the drone battery limit. So we would merge all these separate captures in a whole picture of the island in the end. We are aiming for minimum precision of 5 cm. When we imported the files on Agisoft to process it, the estimated time was around 150 days! And we could not do it in a single shot - each flight had to be processed separately, so we could join the images together at the end. Obviously that means we are prone to imprecision even having control points set in every flight (obtained with dual frequency GPS, L1 and L2), but it was the only way we could find to work with the available equipment.

The next step is doing the same work with a much bigger and detailed area (17,42 km²), which is set to last 400 DAYS to process once we take all the pictures we need. More than a year of work, and we are pretty sure we can reduce that estimative with proper infrastructure. Maybe even achieving to do all the processing one time only. That means we are trying to find out specifically what kind of workstation we should buy aiming a better performance, considering our resources are around US$19,000.

Here is our current setup. It’s not a brand new but it’s all we’ve got. Any advice on what to buy is welcome.

    Intel Xeon CPU E3-1225 v5 @ 3.30GHz 3.31GHz
    RAM: 16 GB
    Windows 10 Pro 64 bit
    NVIDIA GeForce GTX 1050 Ti

Thanks in advance!

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