Helper Functions to Import COLMAP Camera's Intrinsics and Extrinsics #83
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…en colmap folder structure
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Per the paper, DA3 can take as input camera intrinsics and extrinsics as opposed to estimating them directly. The PR provides two helper functions in
read_write_model.py:extract_intrinsics_extrinsics_from_colmap: extracts the intrinsics and extrinsics from the COLMAP model, which is provided from the existingread_modelmethodget_image_paths: gets the absolute image file paths given the COLMAP model (which stores the actual images two directories above where cameras, images, and points3D are located (see here)It also provides a notebook
colmap_extraction_demo.ipynbthat demos the methods and the resulting prediction intrinsics and extrinsics with and without the input COLMAP intrinsics and extrinsics.With COLMAP:
Without COLMAP:
