Title :
Analysis on Spectral Properties of Projection Signals in 3D Tomography
Author :
Li, Y. ; Kummert, A. ; Boschen, F. ; Herzog, H.
Author_Institution :
Fac. of Electr., Information & Media Eng., Wuppertal Univ.
Abstract :
In this paper a new approach is presented to analyze the spectral behavior of the 3D projection signal generated via plane integrals. More accurate determination of the effective support region of the projection spectrum without approximation is realized compared to previous approaches. On the basis of acquired results, a more accurate and optimal interlaced sampling pattern is correspondingly established. Compared to the traditional progressive sampling method, a reduction of sampling points by the factor 4 is achieved
Keywords :
medical image processing; positron emission tomography; sampling methods; spectral analysis; 3D tomography; interlaced sampling pattern; progressive sampling method; projection signals; sampling points; spectral properties; Biomedical engineering; Computer aided software engineering; Engineering in medicine and biology; Frequency domain analysis; Information analysis; Sampling methods; Signal analysis; Signal representations; Spectral analysis; Tomography; 3D tomography; image processing; sampling grid; time-frequency analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616196
