bibo:abstract
  • In the case of the image reconstruction from unknown projection data such as imaging the object with opaque obstructions, conventional reconstruction algorithms may reconstruct a degraded image. In this paper, a new method for the estimation of the unknown projection data based on known projection data and the bandwidth of projection data is proposed. The proposed method successfully estimates the unknown projection data through iterative transformation between projection space and frequency space using the known projection data and the bandwidth of the projection data. Computer simulation shows that the proposed method significantly improves image quality and convergence behavior over conventional algorithms. In addition, the proposed method is successfully applied to ultrasound attenuation CT using a sponge phantom. (rdf:langString) (en)
nlon:biographicalNote
  • Kil-houm Park, Department of Electronics Kyungpook National Universtiy (xsd:string)
nlon:classificationNumberOfNLK
  • 510.7405 (xsd:string)
nlon:containedIn
dc:creator
  • 박길흠 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • 투영데이타의 대역폭에 기반한 미지의 투영데이타 추정 (xsd:string)
bibframe:extent
  • 28 cm (xsd:string)
  • p. 275-280 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1994 (xsd:string)
nlon:itemNumberOfNLK
  • 대478ㅇ (xsd:string)
rdfs:label
  • Estimation of unknown projection data based on the bandwidth of projection data / Kil-houm Park (xsd:string)
dc:subject
  • Computed tomography (xsd:string)
  • Ultra sound attenuation CT (xsd:string)
  • Unknown projection data (xsd:string)
  • 대역폭 (xsd:string)
  • 투영데이타 (xsd:string)
dcterms:title
  • Estimation of unknown projection data based on the bandwidth of projection data (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 15(1) (xsd:string)