In a vain attempt to be useful, I want to share the script I’m currently using to automate my photogrammetry workflow. I’m using COLMAP in conjunction with openMVS on Windows 10 at the moment, and I feel that gives me … Continue reading Automating free photogrammetry: Scripts I use
A somewhat belated blog post about my recent paper with Stephen Gatesy, published in JVP (If you don’t have access, just drop me an email). It’s one of the papers I’m most proud to have worked on, because I think … Continue reading What is a “Well Preserved” footprint?
Here’s the original post, with links to all posts This post was updated 27/5/17 – see end of post; turns out using COLMAP for sparse reconstruction let openMVS create an awesome mesh. Normally I see OpenMVS mentioned in the same breath as OpenMVG, but I’m still having significant troubles with OpenMVG behaving with this dataset, so I’ll run the matching with VisualSFM. Download VisualSFM here: http://ccwu.me/vsfm/ And Download OpenMVS binaries here: http://cdcseacave.github.io/openMVS/ (or build it yourself from source.) It’s a while since I’ve used VisualSFM, preferring COLMAP recently. My word it is fast! 95 seconds to a full reconstruction … Continue reading Photogrammetry Testing 11: VisualSFM & OpenMVS (and COLMAP+openMVS)
Here’s the original post, and links to all posts I have previously outlined my goal of testing multiple photogrammetry solutions on a single dataset, and reporting times and results. I’m using a dataset based on photographs of this Styracosaurus model … Continue reading Photogrammetry Testing 10: MicMac
Here’s the original post, and links to all posts I have previously outlined my goal of testing multiple photogrammetry solutions on a single dataset, and reporting times and results. I’m using a dataset based on photographs of this Styracosaurus model … Continue reading Photogrammetry Testing 9: 3DF Zephyr Free
This should give you the basics to generate a heat map of height for a 3D model (in this case a fossil dinosaur footprint), using CloudCompare (One of my top choices of freely available software*). I’m going to assume you … Continue reading How to generate a height map with CloudCompare
If you’ve been following my vague attempts to try different pieces of photogrammetry software, I imagine you will be very interested indeed to read the following paper: Knapitsch et al 2017 (link to paper at the bottom of that page). The authors generate some lovely ground truth data with laser scanners, then record images with video cameras. Then they throw everything at the data sets and rank the software pipelines based on accuracy. SPOILERS: Looks like COLMAP (which I cover here) performs best out of the freely available options, by a fair margin. As an aside, I’ve been running COLMAP … Continue reading Photogrammetry Testing: Doing it properly (by someone else)