edu.stanford.rsl.tutorial.parallel

Class ParallelProjector2D

java.lang.Object

edu.stanford.rsl.tutorial.parallel.ParallelProjector2D

public class ParallelProjector2D
extends java.lang.Object

Implementation of a simple parallel projector. In order to create a projection, the angular range and the angular sampling and the detector element size and detector element sampling has to be defined. We show both, a ray driven and a pixel driven projector. See L. Zeng. "Medical Image Reconstruction: A Conceptual tutorial". 2009, page 3

Author:

Recopra Seminar Summer 2012

Constructor Summary

Constructors

Constructor and Description
ParallelProjector2D(double maxTheta, double deltaTheta, double maxS, double deltaS) Sampling of projections is defined in the constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Grid2D	projectPixelDriven(Grid2D grid) The pixel driven solution.
Grid2D	projectRayDriven(Grid2D grid) The ray driven solution.
Grid2D	projectRayDrivenCL(Grid2D grid)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParallelProjector2D

public ParallelProjector2D(double maxTheta,
                   double deltaTheta,
                   double maxS,
                   double deltaS)

Sampling of projections is defined in the constructor.

Parameters:

maxTheta - the angular range in radians

deltaTheta - the angular step size in radians

maxS - the detector size in [mm]

deltaS - the detector element size in [mm]

Method Detail

projectRayDriven

public Grid2D projectRayDriven(Grid2D grid)

The ray driven solution.

Parameters:

grid - the image

Returns:

the sinogram

projectRayDrivenCL

public Grid2D projectRayDrivenCL(Grid2D grid)

projectPixelDriven

public Grid2D projectPixelDriven(Grid2D grid)

The pixel driven solution.

Parameters:

grid - the image

Returns:

the sinogram