VSTRA

VisionX V4
NAME

v3grow - 3D region growing

SYNOPSIS

v3grow [if=] [of=] [s=] [l=] [th=] [-2D] [-v] [nt=] [m=] [M=] [-s]

DESCRIPTION

v3grow performs an adaptive 3D region growing starting from a seed point. A neighboring voxel is added to the grown region if its intensity is below a threshold ([th=]) and at least [nt=] of its neighbors also fall below that threshold. The threshold parameter ([th=]) is automatically incremented or decremented based on the expected volume of the region. If the region grows larger than the maximum allowed volume [M=], we assume that the region has "leaked" into the neigbouring regions and the intensity threshold is automatically decremented.

OPTIONS

if=

input image

of=

output image

l=

region label

th=

threshold value for growing

-2D

2D region growing

-v

verbose output

nt=

neighbor thresh-debug only

m=

minimum allowed volume

M=

maximum allowed volume

-s

grow if voxel-seed < thresh (default: voxel < thresh)

CONSTRAINTS
BUGS SEE ALSO

vslung, vchest, vlan

AUTHOR

Andinet Asmamaw and Benjamin Stein