OilfieldToolsNet/LBPM
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added target background for uct

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This commit is contained in:
James E McClure
2018-06-06 21:44:37 -04:00
parent e0d1a66982
commit 4aec20b8df
2 changed files with 20 additions and 10 deletions
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16
example/uCT/input.db
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@@ -6,15 +6,17 @@ Domain {
BC = 0 // Boundary condition type BC = 0 // Boundary condition type
} }
uCT { uCT {
InputFile = "MG_dryrecon.volume" InputFile = "MG_dryrecon.volume" // this is the name of the data to segment
rough_cutoff = 0.0 target = -160 // this is the target value of the phase to segment
lamda = 0.5 background = 160 // this is the background value for all other phases
nlm_sigsq = 0.25 rough_cutoff = 0.0 // step 1 -- rough thresholding
lamda = 0.5 // step 2 -- apply some smoothing
nlm_sigsq = 0.25 // step 3 -- apply non-local means
nlm_depth = 3 nlm_depth = 3
center_x = 960 center_x = 600
center_y = 960 center_y = 960
center_z = 600 center_z = 960
radius = 750 cylinder_radius = 700
} }
Analysis { Analysis {
} }

14
tests/lbpm_uCT_pp.cpp
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@@ -70,7 +70,9 @@ int main(int argc, char **argv)
int nprocy = nproc[1]; int nprocy = nproc[1];
int nprocz = nproc[2]; int nprocz = nproc[2];
auto InputFile=uct_db->getScalar<std::string>( "InputFile" ); auto InputFile=uct_db->getScalar<std::string>( "InputFile" );
auto target=uct_db->getScalar<int>("target");
auto background=uct_db->getScalar<int>("background");
auto rough_cutoff=uct_db->getScalar<float>( "rough_cutoff" ); auto rough_cutoff=uct_db->getScalar<float>( "rough_cutoff" );
auto lamda=uct_db->getScalar<float>( "lamda" ); auto lamda=uct_db->getScalar<float>( "lamda" );
auto nlm_sigsq=uct_db->getScalar<float>( "nlm_sigsq" ); auto nlm_sigsq=uct_db->getScalar<float>( "nlm_sigsq" );
@@ -210,7 +212,8 @@ int main(int argc, char **argv)
// Compute the means for the high/low regions // Compute the means for the high/low regions
// (should use automated mixture model to approximate histograms) // (should use automated mixture model to approximate histograms)
float THRESHOLD = 0.05*maxReduce( Dm[0]->Comm, std::max( LOCVOL[0].max(), fabs(LOCVOL[0].min()) ) ); //float THRESHOLD = 0.05*maxReduce( Dm[0]->Comm, std::max( LOCVOL[0].max(), fabs(LOCVOL[0].min()) ) );
float THRESHOLD=0.5*float(target+background);
float mean_plus=0; float mean_plus=0;
float mean_minus=0; float mean_minus=0;
int count_plus=0; int count_plus=0;
@@ -219,7 +222,12 @@ int main(int argc, char **argv)
for (int j=1;j<Ny[0]+1;j++) { for (int j=1;j<Ny[0]+1;j++) {
for (int i=1;i<Nx[0]+1;i++) { for (int i=1;i<Nx[0]+1;i++) {
if (MASK(i,j,k) > 0.f ){ if (MASK(i,j,k) > 0.f ){
auto tmp = LOCVOL[0](i,j,k); auto tmp = LOCVOL[0](i,j,k);
if ((tmp-background)*(tmp-target) > 0){
// direction to background / target is the same
if (tmp-target > tmp-background) tmp=target;
else tmp=background;
}
if ( tmp > THRESHOLD ) { if ( tmp > THRESHOLD ) {
mean_plus += tmp; mean_plus += tmp;
count_plus++; count_plus++;