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Granted Patent: Defect Detection System For Quality Assurance Using Automated Visual Inspection
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TitleDefect Detection System For Quality Assurance Using Automated Visual Inspection
 
Granted PatentUS 6753965
 
Granted Date2004-06-22
 
Priority Date2001-10-25 US 09/144588
2001-01-09 US 09/260520P
 
InventorsKumar, A
Pang, Kwok-hung Grantham
 
Issue Date2004
 
CitationUS Patent 6753965. Washington, DC: US Patent and Trademark Office (USPTO), 2004 [How to Cite?]
 
AbstractA Defect Detection Method And System For The Automated Visual Inspection Of Web Materials Is Provided. The Invention Utilize Real Gabor Function (Rgf) Filters With A Non-Linear Function For Estimating The Local Energy. An Example Method For Quality Assurance Using Automated Visual Inspection In Accordance With The Invention Includes The Steps Of: Automated Design Of A Bank Of Rgf Filters; Using These Rgf Filters To Sample The Features Of Image Under Inspection; Using A Non-Linear Function To Compute Local Energy Estimate In The Filtered Images; Combining All The Filtered Images Using Image Fusion; And Finally Thresholding The Resultant Image To Segment The Defects In The Inspection Image. Possible Embodiments Of The Described Invention Include Detection Of Only A Class Of Defects Using A Single Tuned Real Gabor Filter Or A Bank Of Real Gabor Functions.
 
ReferencesUS 5301129 (A) 1994-04-05

US 5774177 (A) 1998-06-30

US 4630304 (A) 1986-12-16

US 5737072 (A) 1998-04-07

US 5740048 (A) 1998-04-14

US 5825501 (A) 1998-10-20

EP 0974831 (A2) 2000-01-26

EP 0974831 (A3) 2000-03-22

EP 0974831 (B1) 2005-01-12
 
DC FieldValue
dc.contributor.inventorKumar, A
 
dc.contributor.inventorPang, Kwok-hung Grantham
 
dc.date.accessioned2011-10-19T06:30:05Z
 
patents.date.application2001-10-25
 
dc.date.available2011-10-19T06:30:05Z
 
patents.date.granted2004-06-22
 
dc.date.issued2004
 
patents.date.priority2001-10-25 US 09/144588
 
patents.date.priority2001-01-09 US 09/260520P
 
patents.date.publication2003-05-01
 
dc.description.abstractA Defect Detection Method And System For The Automated Visual Inspection Of Web Materials Is Provided. The Invention Utilize Real Gabor Function (Rgf) Filters With A Non-Linear Function For Estimating The Local Energy. An Example Method For Quality Assurance Using Automated Visual Inspection In Accordance With The Invention Includes The Steps Of: Automated Design Of A Bank Of Rgf Filters; Using These Rgf Filters To Sample The Features Of Image Under Inspection; Using A Non-Linear Function To Compute Local Energy Estimate In The Filtered Images; Combining All The Filtered Images Using Image Fusion; And Finally Thresholding The Resultant Image To Segment The Defects In The Inspection Image. Possible Embodiments Of The Described Invention Include Detection Of Only A Class Of Defects Using A Single Tuned Real Gabor Filter Or A Bank Of Real Gabor Functions.
 
patents.description.assigneeUniv Hong Kong [Us]
 
patents.description.ccUS
 
patents.description.countryUnited States of America
 
patents.description.kindB2
 
dc.description.naturepublished_or_final_version
 
patents.identifier.applicationUS 09/144588
 
dc.identifier.citationUS Patent 6753965. Washington, DC: US Patent and Trademark Office (USPTO), 2004 [How to Cite?]
 
patents.identifier.grantedUS 6753965
 
dc.identifier.hkuros90405
 
patents.identifier.hkutechidEEE-2001-00045
 
patents.identifier.publicationUS 20030081215
 
dc.identifier.urihttp://hdl.handle.net/10722/142133
 
patents.relation.familyUS 2003081215 (A1) 2003-05-01
 
patents.relation.familyUS 6753965 (B2) 2004-06-22
 
dc.relation.referencesUS 5301129 (A) 1994-04-05
 
dc.relation.referencesUS 5774177 (A) 1998-06-30
 
dc.relation.referencesUS 4630304 (A) 1986-12-16
 
dc.relation.referencesUS 5737072 (A) 1998-04-07
 
dc.relation.referencesUS 5740048 (A) 1998-04-14
 
dc.relation.referencesUS 5825501 (A) 1998-10-20
 
dc.relation.referencesEP 0974831 (A2) 2000-01-26
 
dc.relation.referencesEP 0974831 (A3) 2000-03-22
 
dc.relation.referencesEP 0974831 (B1) 2005-01-12
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents
 
dc.titleDefect Detection System For Quality Assurance Using Automated Visual Inspection
 
dc.typePatent
 
patents.typePatent_granted
 
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