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Direct Fourier reconstruction in computer tomography
Abstract
Direct Fourier transform (FT) reconstruction of images in computerized tomography (CT) is not widely used because of the difficulty of precisely interpolating from polar to Cartesian samples. In this paper, an exact interpolation scheme is proposed which, in practice, can be approached with arbitrary accuracy using well-conditioned algorithms. Several features of the direct FT method are discussed. A method that allows angular band limiting of the data before processing -to avoid angular aliasing artifacts in the reconstructed image-is discussed and experimentally verified. The experimental results demonstrate the feasibility of direct FT reconstruction of CT data.
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Cited by
Pan, S., & Kak, A. (1983) · IEEE Transactions on Acoustics, Speech, and Signal Processing · doi:10.1109/tassp.1983.1164196 · Cited by 317
Withayachumnankul, W., Png, G. M., Yin, X., Atakaramians, S., Jones, I., Lin, H., Ung, B. S. Y., Balakrishnan, J., Ng, B. W.-H., Ferguson, B., et al. (2007) · Proceedings of the IEEE · doi:10.1109/jproc.2007.900325 · Cited by 179
Metadata
- Authors
- Stark, H., Woods, J., Paul, I., & Hingorani, R.
- Venue
- IEEE Transactions on Acoustics, Speech, and Signal Processing
- Published
- 1981-04
- Volume
- 29
- Issue
- 2
- Pages
- 237-245
- ISSN
- 0096-3518 (ISSN-L)
- OpenAlex
- W1972312752
- Cited by
- 190
- References
- 0
- FWCI
- 5.23
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Direct Fourier reconstruction in computer tomography. https://app.cochat.ai/papers/10.1109/tassp.1981.1163528
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- Stark, H., Woods, J., Paul, I., & Hingorani, R. (1981). Direct Fourier reconstruction in computer tomography. IEEE Transactions on Acoustics, Speech, and Signal Processing. https://doi.org/10.1109/tassp.1981.1163528
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