| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_68477ad254943906e365d456ee89814b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-0008 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06V10-44 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06V10-44 |
| filingDate |
1994-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2001-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b197a62ac8cb7e88ff1daa2b9222517
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76421a379e9d1dc69583d464231c2019 |
| publicationDate |
2001-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6178262-B1 |
| titleOfInvention |
Circle location |
| abstract |
This invention provides an apparatus and method for locating a curvilinear symbol by generating a grey scale model of a segment of a curvilinear symbol and interpolating curvature at the segment's periphery; reflecting this segment around the axes of symmetry to generate a full size model; generating full resolution subfeature models; assigning coordinate axes weighting to each subfeature model x and y axis; defining tolerance thresholds for deviations from an idealized curvilinear symbol; searching a digitized image for shapes corresponding to the subfeature models; assigning weights to scores returned for positions found corresponding to the subfeature models; producing weighted positions combining both coordinate axis weighting and score weighting; computing a best fit for the image found; comparing the positions found to tolerance thresholds and discarding those positions outside the thresholds; substituting and weighting alternate positions found, if any, to compute the location of the curvilinear symbol from remaining positions within the threshold. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8335380-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8867847-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7054481-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007183668-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9679224-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8081820-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112201101-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8363942-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8229222-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1229487-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8254695-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8331673-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8363972-B1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105787912-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1229487-A2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002048397-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015015918-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8437502-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7139429-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002146174-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8265395-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6516092-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10677740-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6424734-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6681039-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9189714-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107341385-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9659236-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8295613-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110428435-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8345979-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8270748-B1 |
| priorityDate |
1994-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |