backProject (cv.PCA) - MATLAB File Help
cv.PCA/backProject

Reconstructs vectors from their PC projections

X = pca.backProject(Y)

Input

Output

The method is the inverse operation to cv.PCA.project. It takes PC coordinates of projected vectors and reconstruct the original vectors. Unless all the principal components have been retained, the reconstructed vectors are different from the originals. But typically, the difference is small if the number of components is large enough (but still much smaller than the original vector dimensionality). As a result, PCA is used.

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Method Details
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