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dek924 / PerX2CT

Perspective Projection-Based 3D CT Reconstruction from Biplanar X-rays (ICASSP 2023, Best Student Paper Awards)
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Left / right flip of PA image #10

Closed dev000000001 closed 7 months ago

dev000000001 commented 7 months ago

Hi,

in ./x2ct_nerf/data/base.py why do you left/right flip the PA image? It was already flipped in ./data_preprocessing/2_xraypro.py before being stored.

Thanks.

dek924 commented 7 months ago

The ./data_preprocessing/2_xraypro.py script follows the data preprocessing protocol established by the official X2CT code. It applies a flip to the X-rays, reversing the left and right sides. This step is designed to replicate the conventional X-ray view, simulating how a doctor would see the patient from their perspective, with the left and right sides switched. However, our code includes an additional flip to ensure accurate feature mapping in the 3D space. This is essential for aligning the left and right sides of the image with the actual anatomy of the patient.