metashape2instant-ngp

日本語

This repository contains the following programs.

• A program to form camera coordinate data in XML format, which can be obtained from the photogrammetry software Metashape, into JSON format for input to Instant NeRF.

• visualize_json.py: Program to visualize camera coordinate data in JSON format to be input to Instant NeRF

• visualize_xml.py: A program to visualize camera coordinate data in XML format obtained from the photogrammetry software Metashape.

Environment

• Python 3.10.6
• opencv-python 4.6.0
• matplotlib 3.5.3

metashape2nerf.py

Folder structure

.
├─ metashape2nerf.py
└─ <scene_dir>
   ├─ camera.xml
   └─ images
      └─ All images for which camera coordinates were obtained.

Arguments

• scene_dir: The path to the directory of the scene you want to reproduce in Instant NeRF. In this directory, put images, which contains all the images for which the camera coordinates were obtained, and camera.xml, which is a file containing the camera coordinates obtained by Metashape.
• recenter: Option to align the center of gravity of the camera coordinates obtained by Metashape with the origin.

Output

Output transforms.json, which is the camera coordinates from XML format to JSON format, to scene_dir.

Example

python metashape2nerf.py --recenter ./fern

visualize_json.py / visualize_xml.py

Arguments

Path to JSON/XML file where camera coordinate data is stored.

Example

python visualize_json.py ship\transforms.json

Acknowledgements

This software was supported by JSPS Grant-in-Aid for Scientific Research (B)22H03710.