[Insight-users] Re:MR Object Extraction and Registration with SPECT

valli gummadi valli gummadi" <valli_gummadi at rediffmail.com
25 Mar 2004 08:50:21 -0000 

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<P>=0AHi Luis,<BR>=0A <BR>=0A&nbsp; &nbsp; &nbsp;  Thank you for your reply=
. <BR>=0A <BR>=0AA.&nbsp; Yes, Registration is multi modality.<BR>=0AB. Met=
ric is Mattes Mutual Information Image to Image Metric.<BR>=0AC. I am setti=
ng translate scale value as 1/100.<BR>=0A <BR>=0AMR Object Dims are<BR>=0A2=
56 X 256 X 120 and voxel dims are 0.859382 \ 0.859375 \ 1.600000<BR>=0ASPEC=
T Dims are <BR>=0A128 X 128 X 95 and voxel dims are 1.802125 \ 1.802125 \ 1=
.802125<BR>=0A<BR>=0AAs you suggested i changes transform to Translation Tr=
ansform. I fell Translation values required are 3.4205,-17.8784,-14.9741. T=
hese are calculated by some simple trnaform calculations.But, I got the fol=
lowing values.<BR>=0A&nbsp; &nbsp; &nbsp; &nbsp; Level ---- 1<BR>=0A&nbsp; =
&nbsp; &nbsp;0&nbsp;  &nbsp; &nbsp; &nbsp;-0.559639&nbsp;  &nbsp; &nbsp; &n=
bsp;[0.2104, -0.469883, 0.857288]<BR>=0A&nbsp; &nbsp; &nbsp;1&nbsp;  &nbsp;=
 &nbsp; &nbsp;-0.586413&nbsp;  &nbsp; &nbsp; &nbsp;[0.190142, -1.23725, 1.4=
9817]<BR>=0A&nbsp; &nbsp; &nbsp;2&nbsp;  &nbsp; &nbsp; &nbsp;-0.603673&nbsp=
;  &nbsp; &nbsp; &nbsp;[0.291849, -2.23203, 1.48926]<BR>=0A&nbsp; &nbsp; &n=
bsp;3&nbsp;  &nbsp; &nbsp; &nbsp;-0.616188&nbsp;  &nbsp; &nbsp; &nbsp;[1.20=
014, -2.64989, 1.50934]<BR>=0A&nbsp; &nbsp; &nbsp;4&nbsp;  &nbsp; &nbsp; &n=
bsp;-0.623343&nbsp;  &nbsp; &nbsp; &nbsp;[1.00091, -2.44687, 1.92054]<BR>=
=0A&nbsp; &nbsp; &nbsp;5&nbsp;  &nbsp; &nbsp; &nbsp;-0.624559&nbsp;  &nbsp;=
 &nbsp; &nbsp;[1.24568, -2.76181, 2.22203]<BR>=0A&nbsp; &nbsp; &nbsp;6&nbsp=
;  &nbsp; &nbsp; &nbsp;-0.629772&nbsp;  &nbsp; &nbsp; &nbsp;[1.03616, -3.12=
31, 2.49693]<BR>=0A&nbsp; &nbsp; &nbsp;7&nbsp;  &nbsp; &nbsp; &nbsp;-0.6182=
88&nbsp;  &nbsp; &nbsp; &nbsp;[0.638203, -3.14585, 2.19508]<BR>=0A&nbsp; &n=
bsp; &nbsp; &nbsp; ----------------------<BR>=0A&nbsp; &nbsp; &nbsp;22&nbsp=
;  &nbsp; &nbsp; &nbsp;-0.617701&nbsp;  &nbsp; &nbsp; &nbsp;[0.847993, -3.1=
7815, 2.43433]<BR>=0A&nbsp; &nbsp; &nbsp;23&nbsp;  &nbsp; &nbsp; &nbsp;-0.6=
17702&nbsp;  &nbsp; &nbsp; &nbsp;[0.847429, -3.17632, 2.43472]<BR>=0A&nbsp;=
 &nbsp; &nbsp; &nbsp; Level ---- 2<BR>=0A&nbsp; &nbsp; &nbsp;0&nbsp;  &nbsp=
; &nbsp; &nbsp;-0.467669&nbsp;  &nbsp; &nbsp; &nbsp;[1.45533, -3.9201, 2.15=
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  &nbsp; &nbsp; &nbsp;[1.73542, -3.65922, 1.23294]<BR>=0A&nbsp; &nbsp; &nbs=
p;2&nbsp;  &nbsp; &nbsp; &nbsp;-0.466418&nbsp;  &nbsp; &nbsp; &nbsp;[1.4368=
8, -3.86313, 1.57834]<BR>=0A&nbsp; &nbsp; &nbsp;3&nbsp;  &nbsp; &nbsp; &nbs=
p;-0.476375&nbsp;  &nbsp; &nbsp; &nbsp;[1.07048, -4.14895, 1.76288]<BR>=0A&=
nbsp; &nbsp; &nbsp;4&nbsp;  &nbsp; &nbsp; &nbsp;-0.475099&nbsp;  &nbsp; &nb=
sp; &nbsp;[1.05971, -4.12258, 1.51451]<BR>=0A&nbsp; &nbsp; &nbsp;5&nbsp;  &=
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.2204, -4.42648, 1.40593]<BR>=0A&nbsp; &nbsp; &nbsp;8&nbsp;  &nbsp; &nbsp; =
&nbsp;-0.478255&nbsp;  &nbsp; &nbsp; &nbsp;[1.26619, -4.53779, 1.37219]<BR>=
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; --------------------<BR>=0A&nbsp; &nbsp; &nbsp;18&nbsp;  &nbsp; &nbsp; &n=
bsp;-0.49907&nbsp;  &nbsp; &nbsp; &nbsp;[1.81026, -5.38598, 0.663377]<BR>=
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; &nbsp; &nbsp;[1.86144, -5.43701, 0.561393]<BR>=0A&nbsp; &nbsp; &nbsp;20&n=
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.46957, 0.452214]<BR>=0A&nbsp; &nbsp; &nbsp;21&nbsp;  &nbsp; &nbsp; &nbsp;-=
0.503257&nbsp;  &nbsp; &nbsp; &nbsp;[1.94568, -5.49078, 0.333477]<BR>=0A&nb=
sp; &nbsp; &nbsp;22&nbsp;  &nbsp; &nbsp; &nbsp;-0.50401&nbsp;  &nbsp; &nbsp=
; &nbsp;[1.95318, -5.50813, 0.209913]<BR>=0A&nbsp; &nbsp; &nbsp;23&nbsp;  &=
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49&nbsp;  &nbsp; &nbsp; &nbsp;[1.9233, -5.50736, -0.0380978]<BR>=0A&nbsp; &=
nbsp; &nbsp; &nbsp; ---------------<BR>=0A&nbsp; &nbsp; &nbsp;33&nbsp;  &nb=
sp; &nbsp; &nbsp;-0.507502&nbsp;  &nbsp; &nbsp; &nbsp;[1.92613, -5.53367, -=
0.0462974]<BR>=0A&nbsp; &nbsp; &nbsp;34&nbsp;  &nbsp; &nbsp; &nbsp;-0.50749=
6&nbsp;  &nbsp; &nbsp; &nbsp;[1.92452, -5.53625, -0.0487564]<BR>=0A&nbsp; &=
nbsp; &nbsp;35&nbsp;  &nbsp; &nbsp; &nbsp;-0.50748&nbsp;  &nbsp; &nbsp; &nb=
sp;[1.92571, -5.53541, -0.0474536]<BR>=0A&nbsp; &nbsp; &nbsp;36&nbsp;  &nbs=
p; &nbsp; &nbsp;-0.507489&nbsp;  &nbsp; &nbsp; &nbsp;[1.92612, -5.53386, -0=
.0463393]<BR>=0A&nbsp; &nbsp; &nbsp; &nbsp; Level --- 3<BR>=0A&nbsp; &nbsp;=
 &nbsp;0&nbsp;  &nbsp; &nbsp; &nbsp;-0.333054&nbsp;  &nbsp; &nbsp; &nbsp;[2=
.20439, -6.4076, -0.445264]<BR>=0A&nbsp; &nbsp; &nbsp;1&nbsp;  &nbsp; &nbsp=
; &nbsp;-0.341258&nbsp;  &nbsp; &nbsp; &nbsp;[1.97753, -7.12196, 0.216718]<=
BR>=0A&nbsp; &nbsp; &nbsp;2&nbsp;  &nbsp; &nbsp; &nbsp;-0.344463&nbsp;  &nb=
sp; &nbsp; &nbsp;[2.76665, -7.42488, 0.751058]<BR>=0A&nbsp; &nbsp; &nbsp;3&=
nbsp;  &nbsp; &nbsp; &nbsp;-0.355707&nbsp;  &nbsp; &nbsp; &nbsp;[3.69003, -=
7.62704, 1.07742]<BR>=0A&nbsp; &nbsp; &nbsp;4&nbsp;  &nbsp; &nbsp; &nbsp;-0=
.367459&nbsp;  &nbsp; &nbsp; &nbsp;[4.33939, -8.34532, 1.32722]<BR>=0A&nbsp=
; &nbsp; &nbsp;5&nbsp;  &nbsp; &nbsp; &nbsp;-0.370144&nbsp;  &nbsp; &nbsp; =
&nbsp;[5.06601, -7.76369, 1.69291]<BR>=0A&nbsp; &nbsp; &nbsp;6&nbsp;  &nbsp=
; &nbsp; &nbsp;-0.36647&nbsp;  &nbsp; &nbsp; &nbsp;[4.87115, -8.18353, 1.88=
201]<BR>=0A&nbsp; &nbsp; &nbsp;7&nbsp;  &nbsp; &nbsp; &nbsp;-0.369942&nbsp;=
  &nbsp; &nbsp; &nbsp;[4.68666, -8.64717, 1.9136]<BR>=0A&nbsp; &nbsp; &nbsp=
;8&nbsp;  &nbsp; &nbsp; &nbsp;-0.370361&nbsp;  &nbsp; &nbsp; &nbsp;[4.29793=
, -8.58185, 1.60599]<BR>=0A&nbsp; &nbsp; &nbsp;9&nbsp;  &nbsp; &nbsp; &nbsp=
;-0.370784&nbsp;  &nbsp; &nbsp; &nbsp;[4.318, -8.59995, 1.85452]<BR>=0A&nbs=
p; &nbsp; &nbsp;10&nbsp;  &nbsp; &nbsp; &nbsp;-0.373073&nbsp;  &nbsp; &nbsp=
; &nbsp;[4.08662, -8.55748, 1.93915]<BR>=0A&nbsp; &nbsp; &nbsp;11&nbsp;  &n=
bsp; &nbsp; &nbsp;-0.374362&nbsp;  &nbsp; &nbsp; &nbsp;[3.85932, -8.64068, =
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3.63619, -8.58181, 1.94455]<BR>=0A&nbsp; &nbsp; &nbsp; &nbsp; -----<BR>=0A&=
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sp; &nbsp;[3.62019, -8.53821, 1.86937]<BR>=0A&nbsp; &nbsp; &nbsp;23&nbsp;  =
&nbsp; &nbsp; &nbsp;-0.377321&nbsp;  &nbsp; &nbsp; &nbsp;[3.62122, -8.53666=
, 1.86881]<BR>=0A&nbsp; &nbsp; &nbsp;24&nbsp;  &nbsp; &nbsp; &nbsp;-0.37732=
&nbsp;  &nbsp; &nbsp; &nbsp;[3.62221, -8.53515, 1.86805]<BR>=0AParameters a=
re : Iterations&nbsp; =3D 200,tranlate scale =3D 1/100, maxstep length =3D =
4, min step length =3D 0.005, samples =3D 1000, bins =3D 50, levels =3D 3. =
<BR>=0ACan you please explain the parameters i need to change. <BR>=0A <BR>=
=0ARegards,<BR>=0ASrivalli.=0A</P>=0A<br><br>=0A<A target=3D"_blank" HREF=
=3D"http://clients.rediff.com/signature/track_sig.asp"><IMG SRC=3D"http://a=
ds.rediff.com/RealMedia/ads/adstream_nx.cgi/www.rediffmail.com/inbox.htm at Bo=
ttom" BORDER=3D0 VSPACE=3D0 HSPACE=3D0 HEIGHT=3D74 WIDTH=3D496></a>=0A
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Hi Luis,=0A =0A       Thank you for your reply. =0A =0AA.  Yes, Registratio=
n is multi modality.=0AB. Metric is Mattes Mutual Information Image to Imag=
e Metric.=0AC. I am setting translate scale value as 1/100.=0A =0AMR Object=
 Dims are=0A256 X 256 X 120 and voxel dims are 0.859382 \ 0.859375 \ 1.6000=
00=0ASPECT Dims are =0A128 X 128 X 95 and voxel dims are 1.802125 \ 1.80212=
5 \ 1.802125=0A=0AAs you suggested i changes transform to Translation Trans=
form. I fell Translation values required are 3.4205,-17.8784,-14.9741. Thes=
e are calculated by some simple trnaform calculations.But, I got the follow=
ing values.=0A        Level ---- 1=0A	0   	-0.559639   	[0.2104, -0.469883,=
 0.857288]=0A	1   	-0.586413   	[0.190142, -1.23725, 1.49817]=0A	2   	-0.60=
3673   	[0.291849, -2.23203, 1.48926]=0A	3   	-0.616188   	[1.20014, -2.649=
89, 1.50934]=0A	4   	-0.623343   	[1.00091, -2.44687, 1.92054]=0A	5   	-0.6=
24559   	[1.24568, -2.76181, 2.22203]=0A	6   	-0.629772   	[1.03616, -3.123=
1, 2.49693]=0A	7   	-0.618288   	[0.638203, -3.14585, 2.19508]=0A        --=
--------------------=0A	22   	-0.617701   	[0.847993, -3.17815, 2.43433]=0A=
	23   	-0.617702   	[0.847429, -3.17632, 2.43472]=0A        Level ---- 2=0A=
	0   	-0.467669   	[1.45533, -3.9201, 2.15679]=0A	1   	-0.472192   	[1.7354=
2, -3.65922, 1.23294]=0A	2   	-0.466418   	[1.43688, -3.86313, 1.57834]=0A	=
3   	-0.476375   	[1.07048, -4.14895, 1.76288]=0A	4   	-0.475099   	[1.0597=
1, -4.12258, 1.51451]=0A	5   	-0.476836   	[1.14149, -4.21711, 1.51364]=0A	=
6   	-0.477964   	[1.18507, -4.31425, 1.44814]=0A	7   	-0.479435   	[1.2204=
, -4.42648, 1.40593]=0A	8   	-0.478255   	[1.26619, -4.53779, 1.37219]=0A	9=
   	-0.479318   	[1.32146, -4.63334, 1.31353]=0A        -------------------=
-=0A	18   	-0.49907   	[1.81026, -5.38598, 0.663377]=0A	19   	-0.500696   	=
[1.86144, -5.43701, 0.561393]=0A	20   	-0.502098   	[1.91288, -5.46957, 0.4=
52214]=0A	21   	-0.503257   	[1.94568, -5.49078, 0.333477]=0A	22   	-0.5040=
1   	[1.95318, -5.50813, 0.209913]=0A	23   	-0.504461   	[1.93798, -5.51266=
, 0.0859239]=0A	24   	-0.504649   	[1.9233, -5.50736, -0.0380978]=0A       =
 ---------------=0A	33   	-0.507502   	[1.92613, -5.53367, -0.0462974]=0A	3=
4   	-0.507496   	[1.92452, -5.53625, -0.0487564]=0A	35   	-0.50748   	[1.9=
2571, -5.53541, -0.0474536]=0A	36   	-0.507489   	[1.92612, -5.53386, -0.04=
63393]=0A        Level --- 3=0A	0   	-0.333054   	[2.20439, -6.4076, -0.445=
264]=0A	1   	-0.341258   	[1.97753, -7.12196, 0.216718]=0A	2   	-0.344463  =
 	[2.76665, -7.42488, 0.751058]=0A	3   	-0.355707   	[3.69003, -7.62704, 1.=
07742]=0A	4   	-0.367459   	[4.33939, -8.34532, 1.32722]=0A	5   	-0.370144 =
  	[5.06601, -7.76369, 1.69291]=0A	6   	-0.36647   	[4.87115, -8.18353, 1.8=
8201]=0A	7   	-0.369942   	[4.68666, -8.64717, 1.9136]=0A	8   	-0.370361   =
	[4.29793, -8.58185, 1.60599]=0A	9   	-0.370784   	[4.318, -8.59995, 1.8545=
2]=0A	10   	-0.373073   	[4.08662, -8.55748, 1.93915]=0A	11   	-0.374362   =
	[3.85932, -8.64068, 2.00167]=0A	12   	-0.377535   	[3.68104, -8.46814, 1.9=
7087]=0A	13   	-0.378551   	[3.63619, -8.58181, 1.94455]=0A        -----=0A=
	22   	-0.37732   	[3.62019, -8.53821, 1.86937]=0A	23   	-0.377321   	[3.62=
122, -8.53666, 1.86881]=0A	24   	-0.37732   	[3.62221, -8.53515, 1.86805]=
=0AParameters are : Iterations  =3D 200,tranlate scale =3D 1/100, maxstep l=
ength =3D 4, min step length =3D 0.005, samples =3D 1000, bins =3D 50, leve=
ls =3D 3. =0ACan you please explain the parameters i need to change. =0A =
=0ARegards,=0ASrivalli.
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