Data compression in digital angiography using the Fourier transform.
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Data compression in digital angiography using the Fourier transform. / Höhne, K H; Obermöller, U; Riemer, Martin; Witte, G; Böhm, M.
In: MED PHYS, Vol. 10, No. 6, 6, 1983, p. 899-905.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Data compression in digital angiography using the Fourier transform.
AU - Höhne, K H
AU - Obermöller, U
AU - Riemer, Martin
AU - Witte, G
AU - Böhm, M
PY - 1983
Y1 - 1983
N2 - While digital techniques in radiology develop rapidly, problems arise with archival storage and communication of image data. This paper reports on experiments concerning data reduction of digital image sequences of the heart and the brain. The time-intensity curves corresponding to every picture element are subjected to the Fourier transform and reconstructed from a number of coefficients smaller than the original number of images. The reconstruction error is assessed by visual inspection and by determining the mean-square deviation of the original and the reconstructed curve. It is shown that compression factors between 5 and 10 may be achieved without loss of diagnostic information. It is furthermore demonstrated that storage of the images in the form of Fourier coefficients leads to advantages in fast retrieval, enhancement of morphology, and possibility of further quantitative analysis.
AB - While digital techniques in radiology develop rapidly, problems arise with archival storage and communication of image data. This paper reports on experiments concerning data reduction of digital image sequences of the heart and the brain. The time-intensity curves corresponding to every picture element are subjected to the Fourier transform and reconstructed from a number of coefficients smaller than the original number of images. The reconstruction error is assessed by visual inspection and by determining the mean-square deviation of the original and the reconstructed curve. It is shown that compression factors between 5 and 10 may be achieved without loss of diagnostic information. It is furthermore demonstrated that storage of the images in the form of Fourier coefficients leads to advantages in fast retrieval, enhancement of morphology, and possibility of further quantitative analysis.
M3 - SCORING: Zeitschriftenaufsatz
VL - 10
SP - 899
EP - 905
JO - MED PHYS
JF - MED PHYS
SN - 0094-2405
IS - 6
M1 - 6
ER -
