Image concealing via efficient feature selection

摘要

A novel technique for unsupervised feature selection is disclosed. The disclosed methods include automatically selecting a subset of a feature of an image. Additionally, the selection of the subset of features may be incorporated with a congealing algorithm, such as a least-square-based congealing algorithm. By selecting a subset of the feature representation of an image, redundant and/or irrelevant features may be reduced or removed, and the efficiency and accuracy of least-square-based congealing may be improved.

主权项

1. A method comprising:
automatically dividing an initial feature representation of an image into two or more subsets; selecting at least one representative feature from each of the two or more subsets; estimating a warping parameter for the image using the at least one representative feature from each of the two or more subsets.