Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2008-07-15
2008-07-15
Le, Thien M. (Department: 2887)
Registers
Coded record sensors
Particular sensor structure
C235S462010, C235S462250
Reexamination Certificate
active
07398927
ABSTRACT:
A data reader such as for example an imaging reader with a CCD or CMOS imager or the like, having multiple images of a target item illuminated or acquired from different directions in which the image signals are combined into a complete image of the item or selected portions of the item being read such that specular reflection (over-saturated regions of the sensor array) are minimized or eliminated. In one example data reader configuration, multiple illumination sources such as first and second rows of light emitting diodes (LED's) are aimed at the item being scanned from different directions. The illumination sources are alternately pulsed and return signals are collected at one or more sensor arrays. A selected non-saturated return signal from one of the illumination sources, or selected non-saturated portions of return signal from both of the illumination sources are processed to generate a complete non-saturated image of the target. In one preferred processing scheme, assuming that each of the LED's is capable of illuminating the entire target (e.g. a barcode), a pixel-by-pixel minimum is taken of the two images thereby producing an image with specular reflection minimized or nearly eliminated.
REFERENCES:
patent: 4479194 (1984-10-01), Fogg et al.
patent: 4782219 (1988-11-01), Crater
patent: 4949391 (1990-08-01), Faulkerson et al.
patent: 5004896 (1991-04-01), Serrell et al.
patent: 5019714 (1991-05-01), Knowles
patent: 5155343 (1992-10-01), Chandler et al.
patent: 5354977 (1994-10-01), Roustaei
patent: 5365597 (1994-11-01), Holeva
patent: 5545886 (1996-08-01), Metlitsky et al.
patent: 5585616 (1996-12-01), Roxby et al.
patent: 5981944 (1999-11-01), Ito
patent: 6006990 (1999-12-01), Ye et al.
patent: RE36528 (2000-01-01), Roustaei
patent: 6056198 (2000-05-01), Rudeen et al.
patent: 6061091 (2000-05-01), Van de Poel et al.
patent: 6123261 (2000-09-01), Roustaei
patent: 6775381 (2004-08-01), Nelson et al.
patent: 6817525 (2004-11-01), Piva et al.
patent: 6980692 (2005-12-01), Chamberlain
patent: 7204418 (2007-04-01), Joseph et al.
patent: 7204420 (2007-04-01), Barkan et al.
patent: 7234641 (2007-06-01), Olmstead
patent: 2002/0067850 (2002-06-01), Williams et al.
patent: 2002/0125411 (2002-09-01), Christy
patent: 2003/0053686 (2003-03-01), Luo et al.
patent: 2003/0222147 (2003-12-01), Havens et al.
patent: 2004/0020990 (2004-02-01), Havens et al.
patent: 2004/0164165 (2004-08-01), Havens et al.
patent: 2006/0043191 (2006-03-01), Patel et al.
patent: 2006/0118628 (2006-06-01), He et al.
Bajcsy, “Hydroinformatics Module 3: Data Processing and Analysis,” Lesson 3: Spatial Registration (Oct. 2003).
Burschka et al., “Recent Methods for Image-Based Modeling and Rendering,”IEEE Virtual Reality 2003 Tutorial 1(Mar. 2003).
Foley et al., “Computer Graphics: Principles and Practice,” Addison-Wesley Publishing Company, Inc. (Jul. 1997).
Nielsen, “Bibliography on Image Registration,” http://hendrix.imm.dtu.dk/staff/fnielsen/bib/Nielsen2001BibImage/Nielsen2001BibImage.html (Site visited Apr. 25, 1995).
Se et al., “Vision-Based Mapping With Backward Correction” (Oct. 2002).
Szeliski, “Image Alignment and Stitching” N. Paragios et al., editors,Handbook of Mathematical Models in Computer Vision, pp. 273-292. Springer (2005).
Xiong et al., “Registration, Calibration and Blending in Creating high Quality Panoramas”IEEE Workshop on Applications of Computer Vision, Princeton, New Jersey, pp. 69-74 (1998).
IBM Technical Disclosure Bulletin, vol. 25, No. 12, (May 1983), 3 pages.
Olmstead Bryan L.
Smith Larry James
Datalogic Scanning, Inc.
Le Thien M.
Stoel Rives LLP
Taylor April A
LandOfFree
Data reader and methods for imaging targets subject to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data reader and methods for imaging targets subject to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data reader and methods for imaging targets subject to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2777862