Detecting multiple objects in digital image data

Details Detecting multiple objects in digital image data Detecting multiple objects in digital image data

2006-06-06

2006-06-06

Couso, Yon J. (Department: 2625)

Image analysis

Pattern recognition

Feature extraction

C382S286000

Reexamination Certificate

active

07058224

ABSTRACT:
Apparatus and methods for detecting multiple images in digital image data are described. In one aspect, an edge map is generated from image data. The edge map is analyzed to determine a set of boundaries of the one or more objects by. This analysis is accomplished by: (a) determining a set of transitions between the set of boundaries and a background color; (b) identifying a set of characteristics from the set of transitions, wherein the set of characteristics are used to indicate whether the image data comprises a single object or whether the image data comprises a plurality of objects; and (c) if the image data corresponds to a plurality of objects, assigning particular ones of the set of boundaries to particular ones of the plurality of objects based on a set of rules. The one or more objects are segmented based on the set of boundaries.

REFERENCES:
patent: 5892854 (1999-04-01), de Queiroz et al.
patent: 6157737 (2000-12-01), Ishikawa et al.
patent: 6298172 (2001-10-01), Arney et al.
patent: 6404936 (2002-06-01), Katayama et al.

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