def test_fos_functions():
# Create a renderer
r=fos.ren()
# Create 2 lines with 2 different colors
lines=[np.random.rand(10,3),np.random.rand(20,3)]
colors=np.random.rand(2,3)
c=fos.line(lines,colors)
fos.add(r,c)
# Create a volume and return a volumetric actor using volumetric rendering
vol=100*np.random.rand(100,100,100)
vol=vol.astype('uint8')
r = fos.ren()
v = fos.volume(vol)
fos.add(r,v)
# Remove all objects
fos.rm_all(r)
# Put some text
l=fos.label(r,text='Yes Men')
fos.add(r,l)
# Show everything
#fos.show(r)
def show():
#brains=[(1,1),(1,2),(2,1),(3,1),(3,2)]
brains=[(1,1),(2,1),(3,1)]
ids=tl.emi_atlas()
#print ids.keys()
for (b,s) in brains:
ids2 = pbc.load_pickle(path+'/Relabelling_8_sc1_'+str(b)+'_'+str(s)+'.pkl')
#'/Relabelling_8_sc1_'+str(b)+'_'+str(s)+'.pkl'
print b,s, ids2.keys()
tracks = pbc.load_approximate_tracks(path,b,s)
for i in ids:
if i >0:
r=fos.ren()
color=np.array(ids[i]['color'])
indices=ids2[i]['indices']
bundle=[tracks[ind] for ind in indices]
fos.add(r,fos.line(bundle,color,opacity=0.9))
print 'Bundle_name',i,ids[i]['bundle_name']
fos.show(r,title=ids[i]['bundle_name'][0])
def show_rep3(C, r=None, color=fos.white):
if r == None: r = fos.ren()
for c in C:
fos.add(r, fos.line(C[c]['rep3'] / C[c]['N'], color))
fos.show(r)
return r
def show_rep3(C,r=None,color=fos.white):
if r==None: r=fos.ren()
for c in C:
fos.add(r,fos.line(C[c]['rep3']/C[c]['N'],color))
fos.show(r)
return r
def skeletonize_both():
from dipy.viz import fos
from dipy.core.track_metrics import downsample
from dipy.core.track_performance import local_skeleton_clustering, most_similar_track_mam
froi='/home/eg309/Data/ICBM_Wmpm/ICBM_WMPM.nii'
wI=get_roi(froi,9,0) #4 is genu
fname='/home/eg309/Data/PROC_MR10032/subj_03/101/1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_warp.dpy'
#fname='/home/eg309/Data/PROC_MR10032/subj_03/101/1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_native.dpy'
#fname='/home/eg309/Data/PROC_MR10032/subj_06/101/13122110752323511930000010092916083910900000227ep2dadvdiffDSI10125x25x25STs004a001_QA_native.dpy'
fname2='/home/eg309/Data/PROC_MR10032/subj_06/101/13122110752323511930000010092916083910900000227ep2dadvdiffDSI10125x25x25STs004a001_QA_warp.dpy'
r=fos.ren()
#'''
dpr=Dpy(fname,'r')
T=dpr.read_indexed(range(2*10**4))
dpr.close()
print len(T)
Td=[downsample(t,3) for t in T if length(t)>40]
C=local_skeleton_clustering(Td,d_thr=20.)
for c in C:
#color=np.random.rand(3)
color=fos.red
if C[c]['N']>0:
Ttmp=[]
for i in C[c]['indices']:
Ttmp.append(T[i])
si,s=most_similar_track_mam(Ttmp,'avg')
print si,C[c]['N']
fos.add(r,fos.line(Ttmp[si],color))
dpr=Dpy(fname2,'r')
T=dpr.read_indexed(range(2*10**4))
dpr.close()
print len(T)
Td=[downsample(t,3) for t in T if length(t)>40]
C=local_skeleton_clustering(Td,d_thr=20.)
#r=fos.ren()
for c in C:
#color=np.random.rand(3)
color=fos.yellow
if C[c]['N']>0:
Ttmp=[]
for i in C[c]['indices']:
Ttmp.append(T[i])
si,s=most_similar_track_mam(Ttmp,'avg')
print si,C[c]['N']
fos.add(r,fos.line(Ttmp[si],color))
#'''
fos.add(r,fos.point(wI,fos.green))
fos.show(r)
def tracks_in_roi():
froi='/home/eg309/Data/ICBM_Wmpm/ICBM_WMPM.nii'
wI=get_roi(froi,35,1) #4 is genu
fname='/home/eg309/Data/PROC_MR10032/subj_03/101/1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_warp.dpy'
dpr=Dpy(fname,'r')
T=dpr.read_indexed(range(2*10**4))
print len(T)
Troi=[]
for t in T:
if track_roi_intersection_check(t,wI,.5):
Troi.append(t)
print(len(Troi))
dpr.close()
from dipy.viz import fos
r=fos.ren()
fos.add(r,fos.line(Troi,fos.red))
fos.add(r,fos.point(wI,fos.green))
fos.show(r)
def skeletonize():
froi='/home/eg309/Data/ICBM_Wmpm/ICBM_WMPM.nii'
wI=get_roi(froi,35,1) #4 is genu
#fname='/home/eg309/Data/PROC_MR10032/subj_03/101/1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_warp.dpy'
#fname='/home/eg309/Data/PROC_MR10032/subj_03/101/1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_native.dpy'
#fname='/home/eg309/Data/PROC_MR10032/subj_06/101/13122110752323511930000010092916083910900000227ep2dadvdiffDSI10125x25x25STs004a001_QA_native.dpy'
fname='/home/eg309/Data/PROC_MR10032/subj_06/101/13122110752323511930000010092916083910900000227ep2dadvdiffDSI10125x25x25STs004a001_QA_warp.dpy'
dpr=Dpy(fname,'r')
T=dpr.read_indexed(range(2*10**4))
dpr.close()
print len(T)
from dipy.core.track_metrics import downsample
from dipy.core.track_performance import local_skeleton_clustering, most_similar_track_mam
Td=[downsample(t,3) for t in T]
C=local_skeleton_clustering(Td,d_thr=20.)
#Tobject=np.array(T,dtype=np.object)
from dipy.viz import fos
r=fos.ren()
#skeleton=[]
for c in C:
color=np.random.rand(3)
if C[c]['N']>0:
Ttmp=[]
for i in C[c]['indices']:
Ttmp.append(T[i])
si,s=most_similar_track_mam(Ttmp,'avg')
print si,C[c]['N']
fos.add(r,fos.line(Ttmp[si],color))
#print len(skeleton)
#fos.add(r,fos.line(skeleton,color))
#fos.add(r,fos.line(T,fos.red))
fos.show(r)
#C=pf.local_skeleton_clustering(tracks,20.)
print 'Done in total of ', time.clock() - tim, 'seconds.'
print 'Saving result...'
pkl.save_pickle(C_fname, C)
streams = [(i, None, None) for i in atracks]
tv.write(appr_fname, streams, hdr)
else:
print 'Loading result...'
C = pkl.load_pickle(C_fname)
skel = []
for c in C:
skel.append(C[c]['repz'])
print 'Showing dataset after clustering...'
r = fos.ren()
fos.clear(r)
colors = np.zeros((len(skel), 3))
for (i, s) in enumerate(skel):
color = np.random.rand(1, 3)
colors[i] = color
fos.add(r, fos.line(skel, colors, opacity=1))
fos.show(r)
print 'Representing tracks using only 3 pts...'
tracks=[tm.downsample(t,3) for t in T]
print 'Deleting unnecessary data...'
del streams,hdr
print 'Hidden Structure Clustering...'
now=time.clock()
C=pf.local_skeleton_clustering(tracks,d_thr=20)
print 'Done in', time.clock()-now,'s.'
print 'Reducing the number of points...'
T=[pf.approximate_ei_trajectory(t) for t in T]
print 'Showing initial dataset.'
r=fos.ren()
fos.add(r,fos.line(T,fos.white,opacity=0.1))
fos.show(r)
print 'Showing dataset after clustering.'
fos.clear(r)
colors=np.zeros((len(T),3))
for c in C:
color=np.random.rand(1,3)
for i in C[c]['indices']:
colors[i]=color
fos.add(r,fos.line(T,colors,opacity=1))
fos.show(r)
print 'Some statistics about the clusters'
lens=[len(C[c]['indices']) for c in C]
def plot_sphere(v, key):
r = fos.ren()
fos.add(r, fos.point(v, fos.green, point_radius=0.01))
fos.show(r, title=key, size=(1000, 1000))
def plot_sphere(v,key):
r = fos.ren()
fos.add(r,fos.point(v,fos.green, point_radius= 0.01))
fos.show(r, title=key, size=(1000,1000))
def warp_tracks():
dn='/home/eg309/Data/TEST_MR10032/subj_03/101/'
ffa=dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_bet_FA.nii.gz'
finvw=dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_warps_in_bet_FA.nii.gz'
fqadpy=dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_QA_native.dpy'
flaff=dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_affine_transf.mat'
fref ='/usr/share/fsl/data/standard/FMRIB58_FA_1mm.nii.gz'
fdis =dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_nonlin_displacements.nii.gz'
fdis2 =dn+'1312211075232351192010092217244332311282470ep2dadvdiffDSI10125x25x25STs004a001_nonlin_displacements_withaff.nii.gz'
#read some tracks
dpr=Dpy(fqadpy,'r')
T=dpr.read_indexed(range(150))
dpr.close()
#from fa index to ref index
res=flirt2aff_files(flaff,ffa,fref)
#load the reference img
imgref=ni.load(fref)
refaff=imgref.get_affine()
#load the invwarp displacements
imginvw=ni.load(finvw)
invwdata=imginvw.get_data()
invwaff = imginvw.get_affine()
#load the forward displacements
imgdis=ni.load(fdis)
disdata=imgdis.get_data()
#load the forward displacements + affine
imgdis2=ni.load(fdis2)
disdata2=imgdis2.get_data()
#from their difference create the affine
disaff=imgdis2.get_data()-disdata
shift=np.array([disaff[...,0].mean(),disaff[...,1].mean(),disaff[...,2].mean()])
shape=ni.load(ffa).get_data().shape
disaff0=affine_transform(disaff[...,0],res[:3,:3],res[:3,3],shape,order=1)
disaff1=affine_transform(disaff[...,1],res[:3,:3],res[:3,3],shape,order=1)
disaff2=affine_transform(disaff[...,2],res[:3,:3],res[:3,3],shape,order=1)
disdata0=affine_transform(disdata[...,0],res[:3,:3],res[:3,3],shape,order=1)
disdata1=affine_transform(disdata[...,1],res[:3,:3],res[:3,3],shape,order=1)
disdata2=affine_transform(disdata[...,2],res[:3,:3],res[:3,3],shape,order=1)
#print disgrad0.shape,disgrad1.shape,disgrad2.shape
#disdiff=np.empty(invwdata.shape)
#disdiff[...,0]=disgrad0
#disdiff[...,1]=disgrad1
#disdiff[...,2]=disgrad2
#ni.save(ni.Nifti1Image(disdiff,invwaff),'/tmp/disdiff.nii.gz')
di=disdata0
dj=disdata1
dk=disdata2
d2i=invwdata[:,:,:,0] + disaff0
d2j=invwdata[:,:,:,1] + disaff1
d2k=invwdata[:,:,:,2] + disaff2
#di=disgrad0
#dj=disgrad1
#dk=disgrad2
imgfa=ni.load(ffa)
fadata=imgfa.get_data()
faaff =imgfa.get_affine()
Tw=[]
Tw2=[]
Tw3=[]
froi='/home/eg309/Data/ICBM_Wmpm/ICBM_WMPM.nii'
roiI=get_roi(froi,3,1) #3 is GCC
roiI2=get_roi(froi,4,1) #4 is BCC
roiI3=get_roi(froi,5,1) #4 is SCC
roiI=np.vstack((roiI,roiI2,roiI3))
for t in T:
if np.min(t[:,2])>=0:#to be removed
mci=mc(di,t.T,order=1) #interpolations for i displacement
mcj=mc(dj,t.T,order=1) #interpolations for j displacement
mck=mc(dk,t.T,order=1) #interpolations for k displacement
D=np.vstack((mci,mcj,mck)).T
WI=np.dot(t,res[:3,:3].T)+res[:3,3]+D#+ shift
W=np.dot(WI,refaff[:3,:3].T)+refaff[:3,3]
mc2i=mc(d2i,t.T,order=1) #interpolations for i displacement
mc2j=mc(d2j,t.T,order=1) #interpolations for j displacement
mc2k=mc(d2k,t.T,order=1) #interpolations for k displacement
D2=np.vstack((mc2i,mc2j,mc2k)).T
WI2=np.dot(t,res[:3,:3].T)+res[:3,3]+D2 #+ shift
W2=np.dot(WI2,refaff[:3,:3].T)+refaff[:3,3]
WI3=np.dot(t,res[:3,:3].T)+res[:3,3]
W3=np.dot(WI3,refaff[:3,:3].T)+refaff[:3,3]
Tw.append(W)
Tw2.append(W2)
Tw3.append(W3)
from dipy.viz import fos
r=fos.ren()
fos.add(r,fos.line(Tw,fos.red))
fos.add(r,fos.line(Tw2,fos.green))
fos.add(r,fos.line(Tw3,fos.yellow))
fos.add(r,fos.sphere((0,0,0),10,color=fos.blue))
fos.add(r,fos.point(roiI,fos.blue))
fos.show(r)
def showline(myline):
from dipy.viz import fos
r = fos.ren()
fos.add(r,fos.line(myline,fos.blue,opacity=0.5))
fos.show(r)