detector

Set up the 7 degrees-of-freedom parameters for the C-arm

Tip

The Detector is usually initialized in the DRR module and shouldn’t need to be called directly.

Detector

 Detector (sdd:float, height:int, width:int, delx:float, dely:float,
           x0:float, y0:float, reorient:<built-
           inmethodtensoroftypeobjectat0x7fab23d7bc40>,
           n_subsample:int|None=None, reverse_x_axis:bool=False)

Construct a 6 DoF X-ray detector system. This model is based on a C-Arm.

	Type	Default	Details
sdd	float		Source-to-detector distance (i.e., focal length)
height	int		Height of the X-ray detector
width	int		Width of the X-ray detector
delx	float		Pixel spacing in the X-direction
dely	float		Pixel spacing in the Y-direction
x0	float		Principal point X-offset
y0	float		Principal point Y-offset
reorient	torch.tensor		Frame-of-reference change matrix
n_subsample	int \| None	None	Number of target points to randomly sample
reverse_x_axis	bool	False	If pose includes reflection (in E(3) not SE(3)), reverse x-axis

source

Detector.forward

 Detector.forward (extrinsic:diffdrr.pose.RigidTransform,
                   calibration:diffdrr.pose.RigidTransform)

Create source and target points for X-rays to trace through the volume.