| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73be6fd106d932471c384ba950700492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8d0f10d81a44adb3a0f44ef3742d65ae |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2211-421
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2211-424
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2207-20192
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2207-10081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2207-20182
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-4441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2207-30004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2211-432 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T5-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T5-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-5282
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-583
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-5205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T11-006 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T5-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B6-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B6-00 |
| filingDate |
2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c721383575719174c785452ba0d8fec0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17b477787d97477afd2393a84f356b3c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc96dad1354c553eb6013b191ad2aea7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_983b274e97513b70889254a6c4ae812e |
| publicationDate |
2019-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2019164317-A1 |
| titleOfInvention |
Method and apparatus for projection domain truncation correction in computed-tomography (ct) |
| abstract |
An apparatus and method are provided for computed tomography (CT) imaging to reduce truncation artifacts due to a part of an imaged object being outside the scanner field of view (FOV) for at least some views of a CT scan. After initial determining extrapolation widths to extend the projection data to fill a truncation region, the extrapolation widths are combined into a padding map and smoothed to improve uniformity and remove jagged edges. Then a hybrid material model fits the measured projection data nearest the truncation region to extrapolate projection data filling the truncation region. Smoothing the padding map is improved by the insight that in general smaller extrapolation widths are more accurate and trustworthy. Further, practical applications often include multiple inhomogeneous materials. Thus, the hybrid material model provides a better approximation than single material models, and more accurate fitting is achieved. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115957451-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11416993-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111563940-A |
| priorityDate |
2017-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |