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gaocong13 / Projective-Spatial-Transformers

Generalizing Spatial Transformers to Projective Geometry with Applications to 2D/3D Registration
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3D point cloud Projection #9

Closed Hello-hubKing closed 3 years ago

Hello-hubKing commented 3 years ago

Hi, I noticed that you mentioned voxel grid projection of 3d point cloud. Can you realize direct projection of 3d point cloud.

gaocong13 commented 3 years ago

Hello, a short answer is yes. As long as it follows the projective geometry, the point cloud data can be projected onto 2D plane. However, the main novelty of this work is enabling differentiable projection for volumetric 3D data. especially with transmission imaging modalities. If it is point cloud data, then there is no need to perform ray casting and line integration.