extract camera trajectory from model and import (position and orientation) into blender or unity3d

General Feedback & Requests
,
1

Hello everyone! Is there a possibility to extract the camera trajectory, so position and orientation in time with reality capture in addition to the model mesh? My idea would be to import the 3D model into unity for example and make an object move like the real camera that captured the model

2

I’d like the same feature.

Starting from a video (25-30 fps) I’ve extracted >1000 frames and reconstructed an outdoor scene, even with my 10 years old gpu.

Now, the fbx or usd are correctly imported in blender but with >1000 differents camera.

Could be very useful for vfx and camera solving, the possibility of reconstruct and export it as a single animated camera in fbx or usd.

3

Hi, thank you for your request. We added it to our request database.

I actually needed the same thing for a personal project. I used ChatGPT to make a Python script that can be executed in Blender that will join all the individual solved cameras into a single animated camera.

I also took all the undistorted images, rendered them into a video, and used it as background for the animated camera. Everything was aligned perfectly and worked like a charm. Give it a try.

Best regards,
Jakub

4

A guy made a plugin for blender (in approval state) Review: Merge Selected Cameras — Blender Extensions

5

Now the blender plugin is approved and work very well. Just import the fbx in blender and the plugin merge all the cameras into an animated one:

1 Like