Content-type: text/html Manpage of CT-LINE

CT-LINE

Section: User Commands (1)
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NAME

ct-line - CT reconstruction of one sinogram picked from the series of images.  

SYNOPSIS


ct-line [OPTIONS...] <result>  

DESCRIPTION

This program is the prototype of the reconstruct-as-acquired approach. In this approach you don't need to wait until all projections are acquired, then form sinogram and reconstruct it. The program picks up the projections (input filenames from the stdin) as they arrive, picks the specified slice and adds to the reconstructed image. The end of input data is triggered with the empty line.

 

ARGUMENTS:

<result>
Output reconstructed image.
Defaults to "reconstructed.tiff".
 

OPTIONS:

-C, --contrast=STRING
Input component.
Type of the contrast presented in the sinogram. Must be one of the following strings (case insensitive):
A, ABS, ABSORPTION - for the absorption contrast
R, REF, REFRACTION - for the refraction contrast
P, PHS, PHASE - for the phase contrast
F, FLT, FILTERED - for the pre-filtered contrast
-s, --slice=INT
Slice to be reconstructed.
-c, --center=FLOAT
Rotation center.
Deviation of the rotation axis from the center of the sinogram.
Allows you to erase some minor artifacts in the reconstructed image which come from the inaccurate rotation position. In most real CT or TS experiments the rotation center of the sample is not exactly in the center of the recoded projection. Moreover, the rotation axis may be inclined from the vertical orientation. If the inclination of the rotation axis is noticeable for your desired spatial resolution then you should rotate the images before the actual reconstruction. You can do it in the batch using "mogrify" command from the ImageMagick package with the -rotate option.
-f, --filter=STRING[:FLOAT]
Filtering window used in the CT.
Defaults to "RAMP".
Must be a string consisting of two parts (the second one is optional): the filter name and float parameter of the filter. The filter name can be one of the following (case insensitive):

    RAMP

    BARLETT

    WELCH

    PARZEN

    HANN

    HAMMING

    BLACKMAN

    LANCKZOS

    KAISER

    GAUSS
Optional float value is required only if the filter is KAISER or GAUSS and represents the lpha parameter of the KAISER filter or igma parameter of the GAUSS filter. Description of the filtering functions and their graphs can be found in the html documentation.
-i, --int
Output image(s) as integer.
If this option is not set, the output format defaults to the 32-bit float-point TIFF (regardless of the extension). If it is set, the image format is derived from the output file extension (TIFF if the extension does not correspond to any format).
 

Standard options.

-v, --verbose
Verbose output.
-?, --usage
Outputs brief usage message.
-h, --help
Outputs help message.
When combined with the "-v|--verbose" option may output more detailed message.

 

SEE ALSO:


ctas(1), ctas-bg(1), ctas-ct(1), ctas-ct-abs(1), ctas-ct-dei(1), ctas-ct-edei(1), ctas-ct-ipc(1), ctas-dei(1), ctas-edei(1), ctas-ipc(1), ctas-f2i(1), ctas-ff(1), ctas-sino(1), ctas-sino-abs(1), ctas-sino-dei(1), ctas-sino-ipc(1), ctas-ts(1), ctas-ct-line(1)


 

Index

NAME
SYNOPSIS
DESCRIPTION
ARGUMENTS:
OPTIONS:
Standard options.
SEE ALSO:

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Time: 06:49:21 GMT, July 29, 2010