Extrinsic camera parameters

dek924 / PerX2CT

Perspective Projection-Based 3D CT Reconstruction from Biplanar X-rays (ICASSP 2023, Best Student Paper Awards)

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Extrinsic camera parameters #11

Closed dev000000001 closed 4 months ago

dev000000001 commented 4 months ago

Hi,

Are you using the extrinsic camera parameters of the DRR image as input for perspective rendering?

Thanks

dek924 commented 4 months ago

In our 2dto3d module, we assign extrinsic camera parameters to their respective views according to the following scheme (x2ct_nerf/data/base.py):

self.mapping_camera_type2pose = {
    "PA": torch.tensor([0, 0]),  # Posteroanterior view
    "Lateral": torch.tensor([math.pi / 2, math.pi / 2]),  # Lateral view
}

This configuration enables us to accurately replicate the camera's position and orientation for various types of DRR images, including posteroanterior (PA) and lateral views.