Object recognition system

Details Object recognition system Object recognition system

2008-07-22

2008-07-22

Bella, Matthew C. (Department: 2624)

Image analysis

Applications

Personnel identification

C382S209000, C382S154000, C382S298000, C382S283000, C358S001900, C358S001180, C358S452000

Reexamination Certificate

active

11068834

ABSTRACT:
An object recognition system utilizes a mask locator for extracting a mask area (M) from within a subject image in order to recognize the mask area (M) with a subject image. The mask locator (40) refers to density gradient directional images respectively converted from an image size template and the subject image, and analyzes these density gradient directional images particularly with respect to the density gradient directional values (θT, θS) assigned to each pixel in each directional images to obtain parameters linking the image size template to the mask area (M) to be registered with the image size template. The mask locator has a vote module (60) which gives candidates for the center of the mask by varying the parameters and votes on the candidates. Based upon the number of votes for the candidates, a detection module (70) designate one of the candidates having a maximum vote number as the center of the mask area (M), thereby determining the mask area (M) around thus designated candidate within the subject image for exact recognition of the object in the subject image.

REFERENCES:
patent: 2001/0002932 (2001-06-01), Matsuo et al.
patent: 09-073544 (1997-03-01), None

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