Method and apparatus for estimating object part location in digital image data using feature value analysis
AssigneeFuji Photo Film Co., Ltd.
InventorSergey Ioffe
Life of this patent
Estimating the term…
Abstract
A method and an apparatus estimate an object part location in a digital image using feature value analysis. The method according to one embodiment accesses digital image data representing a region including an object part of a digital image; accesses reference data including class data of classes relating to predetermined positions of the object part in predetermined regions, and features that discriminate among the classes; calculates feature values for the features in the region using pixel values within the region; and determines a location estimate of the object part using the feature values and the reference data.
Claims20
A method of estimating an object part location in a digital image using feature value analysis, said method comprising:
- accessing digital image data representing a region including an object part of a digital image;
- accessing reference data including
- class data of classes relating to predetermined positions of said object part in predetermined regions, and
- features that discriminate among said classes;
- calculating feature values for said features in said region using pixel values within said region;
- and
- determining a location estimate of said object part using said feature values and said reference data.
An apparatus for estimating an object part location in a digital image using feature value analysis, said apparatus comprising:
- an image data unit for providing digital image data representing a region including an object part of a digital image;
- a reference data unit for storing reference data including
- class data of classes relating to predetermined positions of said object part in predetermined regions, and
- features that discriminate among said classes;
- and
- a feature analysis unit for estimating location of said object part in said region, said feature analysis unit estimating location of said object part by
- calculating feature values for said features in said region using pixel values within said region, and
- determining a location estimate of said object part using said feature values and said reference data from said reference data unit.
Dependencies are inferred from the claim text.