Method, Apparatus and Computer Readable Recording Medium for Detecting a Location of a Face Feature Point Using an Adaboost Learning Algorithm

A method comprising:

• classifying a sub-window image into a first feature point candidate recommendation image and a first feature point candidate non-recommendation image by using first selected feature patterns;
• generating first feature point candidate position information of the first feature point candidate recommendation image;
• and
• re-classifying the sub-window image classified as the first feature point candidate non-recommendation image into a second feature point candidate recommendation image and a second feature point candidate non-recommendation image by using second selected feature patterns;
• and
• generating second feature point candidate position information of the second feature point candidate recommendation image.

A computer-readable medium having instruction which when executed by a processor causes the processor to:

• classify a sub-window image into a first feature point candidate recommendation image and a first feature point candidate non-recommendation image by using first selected feature patterns;
• generate first feature point candidate position information of the first feature point candidate recommendation image;
• and
• re-classify the sub-window image classified as the first feature point candidate non-recommendation image into a second feature point candidate recommendation image and a second feature point candidate non-recommendation image by using second selected feature patterns;
• and
• generating second feature point candidate position information of the second feature point candidate recommendation image.