View source: R/jlfPropagation.R
jlfProp | R Documentation |
The JLF initialization is reused throughout a time series with an additional lag argument.
jlfProp(
targetI,
targetIMask,
atlasList,
rad = 2,
labelList = NULL,
rSearch = 3,
lagValue = 3,
verbose = FALSE,
...
)
targetI |
antsImage list to be approximated |
targetIMask |
mask with value 1 |
atlasList |
list containing antsImages with intensity images |
rad |
neighborhood radius, default to 2 |
labelList |
optional list containing antsImages with segmentation labels |
rSearch |
radius of search, default is 3 |
lagValue |
number of prior images to use to fwd propagate JLF solution |
verbose |
boolean |
... |
arguments to pass to |
segmentation of time series
Brian B. Avants
## Not run:
set.seed(123)
ref <- ri(1) %>%
resampleImage(4) %>%
iMath("Normalize")
mi1 <- ri(2)
mi2 <- ri(3)
mi3 <- ri(4)
mi4 <- ri(5)
mi5 <- ri(6)
refmask <- getMask(ref)
refmask <- iMath(refmask, "MD", 10) # just to speed things up
ilist <- list(mi1, mi2, mi3, mi4, mi5)
seglist <- list()
for (i in 1:length(ilist))
{
ilist[[i]] <- iMath(ilist[[i]], "Normalize")
mytx <- antsRegistration(
fixed = ref, moving = ilist[[i]],
typeofTransform = c("Affine"), verbose = TRUE
)
mywarpedimage <- antsApplyTransforms(
fixed = ref,
moving = ilist[[i]],
transformlist = mytx$fwdtransforms
)
ilist[[i]] <- mywarpedimage
seg <- thresholdImage(ilist[[i]], "Otsu", 3)
seglist[[i]] <- seg + 1
}
tarlist <- list(
iMath(ref, "GD", 3),
iMath(ref, "GD", 2),
iMath(ref, "GD", 1),
iMath(ref, "GD", 0),
iMath(ref, "GE", 1),
iMath(ref, "GE", 2),
iMath(ref, "GE", 3)
)
pp <- jlfProp(tarlist, refmask, ilist,
rSearch = 2,
labelList = seglist, rad = rep(2, length(dim(ref)))
)
## End(Not run)
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