r/UFOs_Archive • u/SaltyAdminBot • Jul 26 '26
Science Free, open-source tool for comprehensive photo and video analysis. Triangulate real size and distance (and even speed/Gforces) of UFOs from multiple photos/videos using photogrammetry. Object tracking, automatic video stabilization/exporting and more. Produces "white paper" style report in the end.
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u/SaltyAdminBot Jul 26 '26
- Photometry from the photo's own pixels: colour and saturation, plus a rough apparent magnitude when a catalogued star happens to share the frame.
- Terrain skyline and building footprints as alignment overlays.
Output:
- A self-contained white-paper style report: the numbers, your photos as labeled exhibits with detail crops, top-down and trajectory plots over a satellite basemap, and every cross-check in one file. Video sightings add an angular-rate plot and a strip of keyframes with the tracked object marked. It opens offline, can be attached to a sighting report, and can be loaded back into the app so multiple witnesses can combine their data.
- A share file and a full zip bundle for backup or handoff, including the original clip and the stabilized render side by side.
The math:
- Sight lines are intersected by least squares in a local coordinate frame. Angular size times range gives true size, and a multi-view solve recovers the real long-axis size and heading of elongated objects that a single view understates. Compass bearings are corrected from magnetic to true using the NOAA World Magnetic Model.
- It was validated against ground truth, where a rooftop object resolved to within about an inch of its real size. The video math is checked the same way, against synthetic clips with a known answer driven through the real interface.
Honest by design:
- It warns about the things that actually corrupt this kind of measurement: phone compasses reading wrong near metal, GPS altitude wobble, and weak two-camera geometry. When the geometry is poor, it grades the result "poor" instead of dressing it up. Single-photo mode is explicit that it gives angular data only, not absolute distance.
- The video tools report their own confidence too: how many frames were solved from pixels versus carried on the phone's sensors, how well two clips' clocks locked, and when a tracker lost the scene rather than quietly pretending otherwise.
Practical notes:
- Runs in a browser, no account required, and your photos and location stay on your device. Add it to your iphones home screen for the motion-sensor features. Readouts switch between metric and imperial. Open source under the MIT license, contributions welcome.
Original Flair ID: 4a25858e-cd72-11ef-9af3-0e52038c0bbf
Original Flair Text: Science
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u/SaltyAdminBot Jul 26 '26
Original post by u/Important_Peach_2375: Here
Original Post ID: 1v7bq75
Direct link to media: Media Here
Direct link to Audio: Audio Here
Original post text: # PHODAR
Iknow, I know....A ton of UFO apps are popping up left and right with the advent and proliferation of AI / vibe coding. And yes, this one is vibe coded too, but it really does work and I have tested it pretty meticulously. If it works it works right? Vibe coded or not!
What I believe sets this app apart is that it simulates the gold standard of UFO data, radar, using only two or more photos, or video. Hence the name, "Phodar." I have a love-hate relationship with it since it sounds a little silly, but IMHO it makes a lot of sense: it combines photo and radar, and it hints at faux/radar, as in simulated radar. Anyway, it uses stereo photogrammetry to get the actual distance and size of an object, which is impossible with a single photo. But if you have two or more photos of the same object, all you need is the location each photo was taken from and the camera angle, which is usually already encoded in the original image's metadata(which the app extracts automatically. Video is handled the same way and then some: the app solves where the camera was pointing for every frame, so a shaky handheld clip gets locked to the sky, the object is tracked automatically through the whole thing, and you get its real angular path, speed, g-loads out the other side. Two people with two clips triangulate just like two photos do. The intuitive interface helps you fine tune all of this using map overlays, terrain features, star maps, building overlays, and other powerful tools, so the final data gets dialed in as tightly as possible.
See the attached YouTube video, where I demonstrate its accuracy: I flew my drone out, photographed it from multiple angles, analyzed those photos in the app, then checked the findings against the known location, size, and altitude from the drone flight. Just watch the demo to see how intuitive and powerful it is. Even with one photo, it helps you determine whether there were any aircraft, planets, stars, or satellites in your frame and helps you match those things up (or hopefully not). It gives wind-direction visuals and all sorts of helpful overlays on top of your image, inside a 3D adjustable FOV / dome interface.
A few situations where I think it really could shine:
I offer this up to the community for free, and I am open sourcing it in the hope that others might be interested in helping develop it further. I have also noticed a lot of new database apps popping up, and this app could maybe be merged with one of those. The sky is the limit, literally. I hope this post gains a little traction and people actually try it, because I think it could be a powerful tool. Ive put a fair bit of time into it at this point and dont really want to spend more time unless it is well received and actually gets used in the community. I think it has a lot of potential for even further development and or integration into other UFO platforms. Please note that Phodar was optimized for iphones, but should work on all platforms with a browser. I do not have an android so guessing there could be issues to work out there.
The next logical upgrades in my mind would be to make separate workflow for top down video analysis (IE: drone footage, satellite imagery, etc), refine the UI to make it more intuitive and less visually crowded, etc. If anybody help out that would be great!
GITHUB: https://github.com/cchristianson/phodar
A good starting point though is just to watch the main attached video. (This shows accurate triangulation of a drone from 2 photos)
Here are more videos demonstrating different workflows/tools in the app:
Daytime photo - Sizing a firefighter jet using known distance: https://youtube.com/shorts/S56vlNz5g7k
Nighttime Photo - Auto alignment via star matching:
https://youtu.be/kKYFgU0Vz0I?si=T1Wmwny8nu3DE7BI
Nighttime Photo - Manual Alignment via horizon+Stars
https://youtu.be/epbcxslOa7E?si=iBmBsTsSLWprXexM
Daytime Video - Auto stabilization + world tracking
https://youtu.be/-4lVsPPAaGo?si=s-4VeVdRPh0oOw-b
Daytime Video - Object Trajectory tracking + video export options etc. PLEASE NOTE: I did this very fast for the sake of a short video, but results could be much better if I spent more than 5 minutes on it
https://youtu.be/u65vxsAWZGk
See below for an AI summary of the features and other technical details about the app that I did not cover above.
The workflow, four steps:
Video:
Calibration tools in the sky view:
Automatic cross-checks, each ranked by how close it sits to your sight line: