http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101019579-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N1-00005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G16H30-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01C11-00 |
| filingDate | 2009-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2011-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101019579-B1 |
| titleOfInvention | Resolution Measurement System of Imaging Device Computable with Single Value |
| abstract | The present invention relates to a resolution measuring system of a photographing apparatus capable of calculating the resolution as a single value from an image of an inspection phantom having a circular target of a circular cross section, and more particularly, various types of photographing apparatuses, that is, a general camera, X FcTiLP (flattened cross-sectional Target image Line Profile) for line target images for line scanners and various medical and non-destructive imaging equipment (e.g. ultrasound, CT, MRI, etc.) that provide cross-sectional images of objects. When the difference between the maximum value of the line profile and the value at the intersection of the two profiles is JND (Just Noticeable Difference) when the two profiles are started to be separated while overlapping the same two profiles, the diameter of the target is subtracted from the separated distance of the two profiles. A system for estimating the resolution of a single figure by distance.n n n According to the present invention, when the diameter of the line target is sufficiently smaller than the wavelength of the photographing apparatus, the line profile of the target image becomes a PSF (Point Spread Function), and when the GPSF (Gaussian PSF) approximated by the Gaussian distribution is used, the resolution of the JND and GPSF It may be expressed as a function of the GPSF coordinate value having a maximum value A and a value B smaller than A-JND.n n n The present invention is a remarkable improvement of the existing method of providing only a range of resolutions by using a complex phantom composed of a plurality of targets, and provides an absolute value of the resolution by using a simplified inspection phantom. The present invention can be utilized for quality management of various medical imaging apparatuses requiring image quality management and imaging apparatus for non-destructive testing.n n n n Phantom for inspection, line target with circular cross section, fcTiLP, PSF, GPSF, JND, resolution, ultrasound, X-ray, photographic image, nondestructive image |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10012619-B2 |
| priorityDate | 2009-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.