Alignment and Atlases

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-26-Click DefineMarkers toopen the“markers”panelPress this IN to create or change markersColor of“primary” (selected)markerColor of “secondary” (notselected) markersSize of markers (pixels)Size of gap in markersClear (unset)primary markerSelect whichmarker youare editingSet primary marker tocurrent focus locationCarry out transformationto +acpc coordinatesPerform “quality” check onmarkers (after all 5 are set)
-27-• Stage 2: Scaling to Talairach-Tournoux (+tlrc)coordinates: Once the AC-PC l<strong>and</strong>marks are set <strong>and</strong> we are in ACPC view, we nowstretch/shrink the brain to fit the Talairach-Tournoux Atlas brain size (sampleTT Atlas pages shown below, just for fun)Most anterior to AC70 mmAC to PC23 mmPC to most posterior79 mmLength of cerebrum172mmMost inferior to AC42 mmAC to most superior74 mmHeight of cerebrum116mmAC to left (or right)68 mmWidth of cerebrum136mm
Page 4 and 5: -4-Alignment tools in AFNI (continu
Page 6 and 7: -6-• Most image registration meth
Page 8 and 9: -8-• AFNI program 3dvolreg is for
Page 11 and 12: -11-Motion correction - caveats•
Page 13 and 14: -13-align_epi_anat.py• Goal: Want
Page 15 and 16: -15-Alignment Visualization in AFNI
Page 17 and 18: -17-Rat BrainsAlignmentof12hourMang
Page 19 and 20: -19-ATLASES
Page 21 and 22: -21-ATLAS DEFINITIONSTemplate Space
Page 23 and 24: -23-Registration To Standard Spaces
Page 25: -25-• Hidden in GUI - right click
Page 29 and 30: -29-Automatic Talairach Transformat
Page 31 and 32: -31-Templates included with AFNITT_
Page 33 and 34: -33-Applying a transform to followe
Page 35 and 36: -35-@auto_tlrc Results are Comparab
Page 37 and 38: -37-Atlas/Template Spaces Differ In
Page 39 and 40: -39-From Space To SpaceTLRCMNIMNI-A
Page 41 and 42: -41-Atlases Distributed With AFNITT
Page 43 and 44: -43-Atlases Distributed With AFNI:A
Page 45 and 46: -45-[Where am I?]Shows you where yo
Page 47 and 48: -47-• whereami can report on the
Page 49 and 50: -49-The Future …• New atlases -
Page 51 and 52: -51-Neighborhoods in Space -Transfo
Page 53 and 54: -53-• Histogram cartoons:IIIJJJ
Page 55 and 56: -55-• grayscale underlay = J(x) =
Page 57 and 58: -57-• The future for 3dAllineate:
Page 59 and 60: -59-Appendix AInter-subject, inter-
Page 61 and 62: -61-• Anatomical coverage differs
Page 63 and 64: -63- Solutions to these problems:
Page 65 and 66: -65- Recipe above does not address
Page 67 and 68: -67-
Page 69 and 70: -69-Algorithmic Features• Goal is
Page 72 and 73: -72-Mutual Information• Entropy o
Page 74 and 75: -74-Hellinger Metric• MI can be t
Page 76 and 77:
-76-3dAllineateʼs Symmetrical CR
Page 78 and 79:
-78-Test: Monkey EPI - Anat6 DOFHEL
Page 80 and 81:
-80-Test: Monkey EPI - Anat11 DOFHE
Page 82 and 83:
-82-• Listen up folks, IMPORTANT
Page 84 and 85:
-84- First goal is to mark top midd
Page 86 and 87:
-86-• AC-PC Markers Cheat Sheet T
Page 88 and 89:
-88-Notes on positioning AC/PC mark
Page 90 and 91:
-90-• Scaling to Talairach-Tourno
Page 92 and 93:
-92-Using the same methods as befor
Page 94 and 95:
-94-• Automatic creation of “fo
Page 96 and 97:
-96-“Warp on demand” viewing of
Page 98 and 99:
-98-• Class example - Writing ana
Page 100 and 101:
-100- Examination of time series fr
Page 102 and 103:
-102-Real-Time 3D Image Registratio
Page 104:
-104-• Screen capture fromexample
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