Abstract
Physical and clinical constraints of the imaging process often degrade the quality of medical images. A typical case is low-dose X-ray image acquisition, where the signal-to-noise ratio is limited due to X-ray quantum noise (photon-limited imaging). This paper discusses and quantitatively evaluates spectral transform-based methods for denoising and enhancement of such images. We examine algorithms based on the DFT, the Modulated Lapped Transform (MLT) and a new lapped transform termed the Lapped Directional Transform (LDT).
Original language | English |
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Pages | 1085-1088 |
Number of pages | 4 |
Publication status | Published - 31.03.2000 |
Event | 2000 10th European Signal Processing Conference - Tampere, Finland Duration: 04.09.2000 → 08.09.2000 Conference number: 112800 |
Conference
Conference | 2000 10th European Signal Processing Conference |
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Abbreviated title | EUSIPCO 2000 |
Country/Territory | Finland |
City | Tampere |
Period | 04.09.00 → 08.09.00 |