phm2pj

Simulates collection of X-rays data (projections) around a phantom object.

Usage

phm2pj projection-filename number-detectors number-views [options...]

Options

- -phantom Select a standard phantom.

herman
shepp-logan
unit-pulse

- -phmfile Reads a user-created phantom file.

- -geometry Sets the scanner geometry. Valid values are:

parallel
equiangular
equilinear

- -nray Number of samples per each detector

- -rotangle The rotation angle as a fraction of a circle. For parallel geometries use a rotation angle of 0.5 and for equilinear and equiangular geometries use a rotation angle of 1. The default is to use to appropriate rotation angle based on the geometry.

- -view-ratio Sets the field of view as a ratio of the diameter of the phantom. For normal scanning, the default value of 1.0 is optimal.

- -scan-ratio Sets the length of scanning as a ratio of the view diameter. For normal scanning, the default value of 1.0 is optimal.

- -focal-length Sets the distance between the radiation source and the center of the object as a ratio of the radius of the object. For parallel geometries, a value of 1.0 is optimal. For other geometries, this should be at least 2.0 to avoid artifacts. The default value is 2.

- -`phantom`	Select a standard phantom. `herman` `shepp-logan` `unit-pulse`
- -`phmfile`	Reads a user-created phantom file.
- -`geometry`	Sets the scanner geometry. Valid values are: `parallel` `equiangular` `equilinear`
- -`nray`	Number of samples per each detector
- -`rotangle`	The rotation angle as a fraction of a circle. For parallel geometries use a rotation angle of `0.5` and for equilinear and equiangular geometries use a rotation angle of `1`. The default is to use to appropriate rotation angle based on the geometry.
- -`view-ratio`	Sets the field of view as a ratio of the diameter of the phantom. For normal scanning, the default value of `1.0` is optimal.
- -`scan-ratio`	Sets the length of scanning as a ratio of the view diameter. For normal scanning, the default value of `1.0` is optimal.
- -`focal-length`	Sets the distance between the radiation source and the center of the object as a ratio of the radius of the object. For parallel geometries, a value of `1.0` is optimal. For other geometries, this should be at least `2.0` to avoid artifacts. The default value is `2`.