Bsoft program

btrack

Usage: btrack [options] input.star [input.star]

Track fiducial markers in a tomographic tilt series of micrographs.

Actions:

-allSelect all markers.
-updatematrixUpdate micrograph matrices from tilt and axis angles.
-lambda 2650Calculate thickness from proportionality coefficient (in angstrom).
-adjusttiltApply tilt adjustments based on intensity variation.
-pick 1,20,1Pick seed markers in reference image (1) or all images (2),
excluding the distance from the edge (in pixels).
and a flag to add to rather than replace existing markers.
-generatemarkersGenerates markers for all micrographs from a seed.
-findaxis 10,1.5,-30,50Finds the tilt axis using seed markers and micrographs
near the given tilt angle and with the axis angle step size,
start and end (default axis parameters: 1,-180,180).
-track 5,1.5Track markers: number of iterations and residual target (default 10% of marker radius).
using zero-tilt reference markers as seed.
-crossmarkerCross-correlate markers during z-search (default real space correlate).
-recenterRecenter z coordinates during tracking (default not).
-refine shiftsRefine marker parameters:
markers: Refine marker micrograph positions.
z: Refine marker z positions.
origins: Refine micrograph origins.
scales: Refine micrograph scales.
views: Refine view transforms.
all: Refine origins, scales and views simultaneously.
8,v,o,z: Refine iteratively in sequence views, origins and z's.
-resetmodelReset the x and y marker coordinates to that of the zero-degree tilt image.
-anglesCalculate micrograph orientation angles.
-checkDetermine if markers all fall within micrograph boundaries.
-fixFix markers falling outside micrograph boundaries.
-errors 1.6Show errors above this threshold (distance in pixels).
-exclude 0,1,134-140Exclude these micrographs (can be "none").
-deselect 5-9,33Deselect markers by id from all micrographs and models.

Parameters:

-verbose 7Verbosity of output.
-datatype uForce writing of a new data type.
-sampling 1.5,1.5,1.5Sampling (A/pixel; a single value can be given).
-resolution 900,300High and low resolution limits for cross-correlation (default 0.1,1000 angstrom).
-origin 110,50,44Origin for tilt axis (default 0,0,0).
-axis 74.7Tilt axis angle relative to x-axis (default 0 or from parameter file).
-tilt -65,1.5Tilt series start and step size (default from parameter file).
-reference 48Reference image for alignment (default closest to zero tilt).
-edge 23,12Smooth the edge to a given width, with gaussian decay of a given width.
-goldradius 12Gold particle radius (default from parameter file).
-shiftlimit 155.5Limit on micrograph shift search in pixels (default 25% of micrograph width).
-thickness 2156.5Estimated tomogram thickness (default and minimum 1000 angstrom).

Output:

-output file.starOutput parameter file (produces numbered files for tracking).
-image file.pifOutput multi-image file with aligned images.
-Postscript out.psPostscript output with marker error plots.

Bsoft version 2.0.7-20200917 (64 bit)


Generated by bdoc.pl on Mon Oct 26 08:20:12 2020


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