Adaptation of Image Quality Using Various Filter Setups in the Filtered Backprojection Approach for Digital Breast Tomosynthesis

Task-based performance analysis of FBP, SART and ML for digital breast tomosynthesis using signal CNR and Channelised Hotelling Observers

“…Here we optimise the parameters of a simple yet versatile frequency filter, namely the sinc filter. While the literature on FBP for tomosynthesis has examined filters of different parametric forms Orman et al, 2006;Ludwig et al, 2008), we concentrate on this filter because it can be varied continuously between a standard ramp filter and a filter with smooth high-frequency roll-off by tuning a single parameter. The filter is given by Fig.…”

Breast tomosynthesis and digital mammography: a comparison of breast cancer visibility and BIRADS classification in a population of cancers with subtle mammographic findings

“…The detector was operated in full resolution mode, thus yielding a data acquisition time of 20 s per breast. Image reconstruction was performed by filtered backprojection [25,26].…”

Simultaneous reconstruction and segmentation algorithm for positron emission tomography and transmission tomography

“…initialize x, p, and θ 2. holding p, θ fixed, optimize over x (image update) 3. holding x, θ fixed, optimize over p (measure field update) 4.…”

“…In the case of incomplete angular sampling, it also suffers from an underrepresentation of low frequency content (resulting in low contrast for larger masses), an inability to respect object support, and the generation of additional streak artifacts. While several filter designs have been proposed to alleviate these problems [2,3], the use of FBP in emission tomography and limited angle transmission tomography inevitably leads to reconstructions that are streaky and, to varying extents, unfaithful to the original projection data.…”