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TexturePCA.pas
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TexturePCA.pas
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// ###################################################################
// #### This file is part of the mrimageutils project, depends on
// #### the mathematics library project and is
// #### offered under the licence agreement described on
// #### http://www.mrsoft.org/
// ####
// #### Copyright:(c) 2014, Michael R. . All rights reserved.
// ####
// #### Unless required by applicable law or agreed to in writing, software
// #### distributed under the License is distributed on an "AS IS" BASIS,
// #### WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// #### See the License for the specific language governing permissions and
// #### limitations under the License.
// ###################################################################
unit TexturePCA;
// ################################################################
// #### Texture component analysis
// ################################################################
interface
uses SysUtils, PCA, AAMAppearanceBuilder, Matrix, IncrementalPCA;
// ###############################################################
// #### Implementation using a standard pca
type
TPCAAAMTextureParams = class(TCustomAAMAppearanceBuilderParams)
private
fPCA : TIncrementalPCA;
public
procedure PCAOnTexture(Textures : TDoubleMatrix; var PCA : TMatrixPCA); override;
procedure InitIncrementalPCA(var PCA : TMatrixPCA); override;
procedure ApplyIncrementalPCAStep(const Texture : TDoubleMatrix; const Shape : TDoubleMatrix); override;
end;
implementation
{ TPCAAAMShapeParams }
procedure TPCAAAMTextureParams.ApplyIncrementalPCAStep(const Texture,
Shape: TDoubleMatrix);
begin
fPCA.UpdateEigenspace(Texture);
end;
procedure TPCAAAMTextureParams.InitIncrementalPCA(var PCA: TMatrixPCA);
begin
fPCA := TIncrementalPCA.Create([pcaEigVals]);
fPCA.OnProgress := PCAProgress;
PCA := fPCA;
end;
procedure TPCAAAMTextureParams.PCAOnTexture(Textures : TDoubleMatrix;
var PCA: TMatrixPCA);
begin
PCA := TMatrixPCA.Create([pcaEigVals]);
PCA.OnProgress := PCAProgress;
PCA.PCA(Textures, ModelEnergy, True);
end;
end.