Image analysis – Applications – Manufacturing or product inspection
Patent
1998-01-16
2000-05-23
Mehta, Bhavesh
Image analysis
Applications
Manufacturing or product inspection
382146, 382270, G06K 900
Patent
active
060673761
ABSTRACT:
Pixels of an image are classified (e.g., into foreground and background pixels). In a set of possible values for the pixels, each value is able to serve as a threshold for classifying the pixels. From among the set, a value is selected for the threshold that causes the classification of the pixels to emphasize a characteristic of the image.
REFERENCES:
patent: 4747149 (1988-05-01), Umeda et al.
patent: 4888646 (1989-12-01), Umeda et al.
patent: 5003616 (1991-03-01), Orita et al.
patent: 5335293 (1994-08-01), Vannelli et al.
patent: 5465152 (1995-11-01), Bilodeau et al.
patent: 5550763 (1996-08-01), Michael et al.
patent: 5574668 (1996-11-01), Beaty
patent: 5574801 (1996-11-01), Collet-Beillon
patent: 5652658 (1997-07-01), Jackson et al.
patent: 5659624 (1997-08-01), Fazzari et al.
patent: 5699452 (1997-12-01), Vaidyanathan
Deley et al., "Accurate Placement of Ball Grid Array Packages," reprinted from Electronic Packaging & Production, Apr. 1996, Cahners Publishing Company, Newton, MA, USA.
University of Waterloo Computer Graphics Lab, "Affine Transformations," http://www.undergrad.math.uwaterloo.ca/.about.cs488/In.HTML/Affinenode4.ht ml, pp. 1-3.
Thomas, Jr., George B., "Chapter 14 Partial Differentiation," Calculus and Analytic Geometry, 1953, pp. 481-532, Addison-Wesley Publishing Company, Inc., Cambridge, MA, USA.
Cognex Corporation, Chapter 7 Mathematics, Coordinate Transformation by Pseudoinverse, Cognex 3000/4000/5000 System Software, 1996, pp. 204-210, Revision 7.4 590-0134, Natick, MA.
Cognex Corporation, "Chapter 1 Searching, Correlation Searching," Cognex 3000/4000/5000 Vision Tools, 1996, pp. 17-25, Revision 7.4 590-0136, Natick, MA.
Cognex Corporation, "Chapter 11 Ball Grid Array Device Inspection," SMD Placement Guidance Product User's Manual, 1996, pp. 213-246, Release 2.3.00 590-1039, Natick, MA.
Ballard, D.H., "Generalizing the Hough Transform to Detect Arbitrary Shapes*," Pattern Recognition, 1981, pp. 111-122, vol. 13, No. 2, Pergamon Press Ltd., UK.
ICOS Vision Systems, Inc., "ICOS 2-Dimensional BGA Inspection System," specification sheet, pp. 1-6, Waltham, MA, USA.
ICOS Vision Systems, Inc., "ICOS Component Checker for BGA Inspection," specification sheet, Waltham, MA, USA.
R.A. Hoogenboom, "Normalized Correlation Coefficient," http://www.wi.leidenuniv.nl/.about.rhoogenb
ode26.html, pp. 1-2.
CARACAPPA, Ed., "On Improving BGA Reliability and Quality," Surface Mount Technology Magazine, Jun. 1997, pp. 44-46, Libertyville, IL, USA.
Silver et al., "Practical Golden Template Comparison," Cognex Corporation, Jun. 6, 1990, pp. 2-11, Needham, MA, USA.
"RVSI Vanguard Products," http://www.vai.net/products/products.htm, pp. 1-2.
"RVSI Vanguard VAi 5020," http:www.vai.net/products/prod01.htm, pp. 1-4.
"RVSI Vanguard VAi 5200/VAi 5300," http://www.vai.net/products/prod02.htm, pp. 1-4.
"RVSI Vanguard VAi 6300," http://www.vai.net/products/6300.htm, pp. 1-5.
Grimson et al., "On the Sensitivity of the Hough Transform for Object Recognition," IEEE Transactions on Pettern Anaylsis and Machine Intelligence, Mar. 1990, pp. 255-274, vol. 12, No. 3.
Cognex Corporation
Mehta Bhavesh
Miele Anthony L.
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