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gaocong13 / Projective-Spatial-Transformers

Generalizing Spatial Transformers to Projective Geometry with Applications to 2D/3D Registration
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Projection plane #8

Closed xsk0802 closed 3 years ago

xsk0802 commented 3 years ago

In the program of this project, the calculation of projection plane is expressed by what.？Is the target projection plane consistent with the original image projection plane？

gaocong13 commented 3 years ago

Sorry for the delayed response. The projection plane is defined by intrinsic parameters of a C-arm canonical projection geometry. The intrinsic parameters of the canonical projection geometry are simulating a Siemens CIOS mobile C-arm. The code is located here. The simulation (target) images were generated using the same projection operator, so they are consistent with the DRR. The real images we tested in the paper use the same projection geometry (taken by the Siemens C-arm), which are also consistent. Please note there is a downsampling in the projected image for memeory concern (the pixel size is not the same as the actual C-arm X-ray acquisition).

You could modify these intrinsic parameters to fit your usage. Thanks