Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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True Three-Dimensional Cone-Beam Reconstruction (TTCR) Algorithm - Transform Method from Parallel-beam (TTR) Algorithm -

원추형 주사 방식의 3차원 영상 재구성(TTCR) 알고리즘 - 평행주사 방식(TTR) 알고리즘의 좌표변환 -

  • Lee, S.Z. (Dept. of Electrical Engineering, KAIST) ;
  • Ra, J.B. (Dept. of Electrical Engineering, KAIST) ;
  • Cho, Z.H. (Dept. of Electrical Engineering, KAIST)
  • 이상지 (한국과학기술원 전기 및 전자공학과) ;
  • 나종범 (한국과학기술원 전기 및 전자공학과) ;
  • 조장희 (한국과학기술원 전기 및 전자공학과)
  • Published : 1989.05.26
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Abstract

A true three-dimensional cone-beam reconstruction (TTCR) algorithm for the complete sphere geometry is derived, which is applicable to the direct volume image reconstruction from 2-D cone-beam projections. The algorithm is based on the modified filtered backprojection technique which uses a set of 2-D space-invariant filters and is derived from the previously developed parallel-beam true three-dimensional reconstruction(TTR) algorithm. The proposed algorithm proved to be superior in spatial resolution compared with the parallel-beam TTR algorithm.

Keywords