Changes between Version 18 and Version 19 of barSoftwareErrorCorrection
- Timestamp:
- 10/26/11 08:16:37 (13 years ago)
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barSoftwareErrorCorrection
v18 v19 14 14 15 15 16 [[Image(006__final_comparison.png)]] 16 [[Image(006__final_comparison.png)]] FIGURE 1 17 17 18 18 ---- … … 49 49 50 50 A problem we encountered during tracing was the lack of labels 51 attributed to some areas. 3dBAR vector parser automatically detects 52 such unlabeled regions by comparing the sum of traced paths with the 53 total area of the ''Brain'' structure. The parser locates all 51 attributed to some areas. This can happen when "obvious" names are 52 omitted in commercial atlases; when user does not recognize the area in histological slice (see example in figure 5), but also when additional area is erroneously defined by accidental line crossing (see figure 2 below). 53 54 3dBAR vector parser automatically detects such unlabeled regions by comparing the sum of traced paths with the total area of the ''Brain'' structure. The parser locates all 54 55 contiguous unlabelled regions consisting of more than a given number 55 56 of pixels and traces them. The resulting structures are called 56 57 ''Unlabelled'' and may be indexed and reconstructed similarly to 57 58 the regular structures. 58 59 59 60 60 Left: Red blocks mark regions where irregular neighboring lines touch each other creating small closed areas. … … 65 65 66 66 67 [[Image(001__unlabelled_annotated.gif)]] 67 [[Image(001__unlabelled_annotated.gif)]]FIGURE 2 68 68 69 === Displaced labels === 69 === Incorrect label placement === 70 71 Error correction procedure also looks for labels displaced outside the brain outline or labels anchored directly above contours. 72 73 The latter may happen when a structure is defined as a thin 74 strip between other structures. Since tracing contours themselves is not allowed, such incidents are recorded and a thumbnail image is generated allowing user to examine 75 and correct the error. 76 77 Tracing of a region corresponding to the incorrectly placed label is skipped but in general tracing is not interrupted as the whole procedure works non-interactively. 70 78 71 79 Left: … … 73 81 Right: 74 82 75 [[Image(003__invalid_labels_annotated.gif)]] 83 [[Image(003__invalid_labels_annotated.gif)]]FIGURE 3 76 84 77 85 … … 89 97 about ambiguous delineation and should review the slide in question 90 98 and correct it. 91 92 === Labels placed over contours ===93 94 Error correction procedure also looks for labels anchored directly95 above contours which may happen when a structure is defined as a thin96 strip between other structures or placed outside the brain outline. Since97 tracing contours themselves is not allowed, such incidents are98 recorded and a thumbnail image is generated allowing user to examine99 and correct the error. Tracing of a region corresponding to the100 particular label is skipped but in general tracing is not interrupted101 as the whole procedure works non-interactively.102 103 99 104 100 ---- … … 128 124 Right: 129 125 130 [[Image(002__gapfill_annotated.gif)]] 126 [[Image(002__gapfill_annotated.gif)]]FIGURE 4 131 127 132 128 ---- … … 146 142 Right: Updated CAF slide. 147 143 148 [[Image(0041_new_edges_animated.gif)]] 144 [[Image(0041_new_edges_animated.gif)]]FIGURE 5 149 145 150 146 ---- … … 157 153 Right: 158 154 159 [[Image(007__final_electrode.png)]] 155 [[Image(007__final_electrode.png)]]FIGURE 6 160 156 161 157 == List of used abbreviations ==
