Browsing NTNU Open by Author "Austeng, Andreas"
Now showing items 1-4 of 4
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The Generalized Contrast-to-Noise Ratio: A Formal Definition for Lesion Detectability
Molares, Alfonso Rodrígues; Rindal, Ole Marius Hoel; D´Hooge, Jan; Måsøy, Svein-Erik; Austeng, Andreas; Bell, Muyinatu A. Lediju; Torp, Hans (Peer reviewed; Journal article, 2020)In the last 30 years, the contrast-to-noise ratio (CNR) has been used to estimate the contrast and lesion detectability in ultrasound images. Recent studies have shown that the CNR cannot be used with modern beamformers, ... -
The dark region artifact in adaptive ultrasound beamforming
Rindal, Ole Marius Hoel; Rodriguez-Molares, Alfonso; Austeng, Andreas (Journal article; Peer reviewed, 2017)An undesired effect, the dark region artifact (DRA), has been under-communicated in our research community. The DRA appear next to acoustically strong targets for some of the many adaptive beamformers introduced in the ... -
The influence of speckle statistics on contrast metrics in ultrasound imaging
Hverven, Stine Myhre; Rindal, Ole Marius Hoel; Rodriguez-Molares, Alfonso; Austeng, Andreas (Journal article; Peer reviewed, 2017)Adaptive beamformers aim for improved resolution and contrast in the ultrasound images, and their performance is typically benchmarked using metrics such as contrast ratio (CR) and contrast-to-noise ratio (CNR). Using ... -
The UltraSound ToolBox
Rodriguez-Molares, Alfonso; Rindal, Ole Marius Hoel; Bernard, Olivier; Nair, Arun; Bell, Muyinatu A. Lediju; Liebgott, Herve; Austeng, Andreas; Løvstakken, Lasse (Journal article; Peer reviewed, 2017)We present the UltraSound ToolBox (USTB), a processing framework for ultrasound signals. USTB aims to facilitate the comparison of imaging techniques and the dissemination of research results. It fills the void of tools ...