| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fe126c8b21d7970eddf8d2331f570a96 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-186
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N1-644
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-154
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T11-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-124 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-36 |
| filingDate |
2008-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a5e3f5bc51b38b395d9e81674cb190b |
| publicationDate |
2009-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2009097760-A1 |
| titleOfInvention |
Representation and quantization of digital images and evaluation of color differences |
| abstract |
Digital image data are coded in a color coordinate system bef where b=0.3·ln B and B, e, and f are Bef coordinates. This coding has high perceptual uniformity with respect to coding errors. A color difference formula is provided, with the color difference defined as 100 √{square root over (Δb 2 +Δe 2 +Δf 2 )}. The high perceptual uniformity of this color difference formula is shown using a non-uniformity coefficient developed by the inventor(s). Other features are also provided. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022272344-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104835144-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9613553-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11770535-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9111387-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110933416-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8493381-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013176325-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013016400-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015317929-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013016400-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103155007-A |
| priorityDate |
2007-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |