Systems and methods for selecting interest point descriptors...

Details Systems and methods for selecting interest point descriptors... Systems and methods for selecting interest point descriptors...

2009-03-16

2011-12-27

Lie, Angela (Department: 2163)

Data processing: database and file management or data structures

Database and file access

Record, file, and data search and comparisons

Reexamination Certificate

active

08086616

ABSTRACT:
Systems and methods for selecting interest point descriptors for object recognition. In an embodiment, the present invention estimates performance of local descriptors by (1) receiving a local descriptor relating to an object in a first image; (2) identifying one or more nearest neighbor descriptors relating to one or more images different from the first image, the nearest neighbor descriptors comprising nearest neighbors of the local descriptor; (3) calculating a quality score for the local descriptor based on the number of nearest neighbor descriptors that relate to images showing the object; and (4) determining, on the basis of the quality score, if the local descriptor is effective in identifying the object.

REFERENCES:
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patent: 2008/0159622 (2008-07-01), Agnihotri et al.
patent: 2010/0104158 (2010-04-01), Shechtman et al.
patent: 2011/0026853 (2011-02-01), Gokturk et al.

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