[FEAT] Add MEI/omnidir camera model support to dataloader

[corenel]

Motivation

Initial implementation of support for MEI camera model parameters, enabling undistortion using camera parameters calibrated with this model.

Modification

• Implement MEI and omnidir camera model support in dataloader.py.
  • Update from_calib to handle MEI calibration parameters.
  • Support dictionary and array formats for MEI calibration input.
  • Use cv2.omnidir for undistortion of MEI camera model.
  • Retain pinhole camera model as default.
• Update intrinsics.yaml with MEI calibration example.
• Add .vscode/ folder to gitignore.

Usage

Create a new file named config/intrinsics_omnidir.yaml:

width: 1920
height: 1080

# With distortion in MEI camera model (fx, fy, cx, cy, xi, k1, k2, p1, p2)
calibration:
  - 1441.9160896991989
  - 1390.1791212926507
  - 953.1380538193248
  - 555.50824029929242
  - 1.3112230988388285
  - -0.24550852157878525
  - 0.017740962776894544
  - -0.00045286349158624514
  - -0.00029970814738975934

Running on a video:

python main.py --dataset <path/to/fisheye/video>.mp4 --config config/base.yaml --calib config/intrinsics_omnidir.yaml