Automatic region of interest focusing for an imaging-based...

Details Automatic region of interest focusing for an imaging-based... Automatic region of interest focusing for an imaging-based...

2007-10-31

2010-12-21

Lee, Seung H (Department: 2887)

Registers

Coded record sensors

Particular sensor structure

C235S462230, C235S462240

Reexamination Certificate

active

07854385

ABSTRACT:
A variable focus imaging lens assembly for an imaging system of an imaging-based bar code reader for imaging and decoding a target bar code. The lens assembly includes an automatic focusing system for energizing a drive mechanism and imaging system to move a movable lens from the predetermined position along its path of travel and generate a series of image frames; analyzing one or more image frames of the series of image frames to determine a region of interest, the region of interest including an image of a target bar code; analyzing the region of interest in subsequent image frames of the series of image frames to determine an amount of blurring; selecting an image frame from the series of image frames having blurring less than a threshold amount of blurring; and utilizing a decoder to decode the image of the target bar code in the selected image frame.

REFERENCES:
patent: 5302812 (1994-04-01), Li et al.
patent: 6088482 (2000-07-01), He et al.
patent: 6176428 (2001-01-01), Joseph et al.
patent: 6250551 (2001-06-01), He et al.
patent: 6340114 (2002-01-01), Correa et al.
patent: 6340119 (2002-01-01), He et al.
patent: 6405925 (2002-06-01), He et al.
patent: 6634558 (2003-10-01), Patel et al.
patent: 6732929 (2004-05-01), Good et al.
patent: 6860428 (2005-03-01), Dowling et al.
patent: 2006/0118635 (2006-06-01), Joseph et al.

Affiliated with

Also associated with

Rating

Automatic region of interest focusing for an imaging-based... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic region of interest focusing for an imaging-based..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic region of interest focusing for an imaging-based... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4195860