Dynamic coherence factor based on the standard deviation for coherent plane-wave compounding
Sign Up to like & getrecommendations! Published in 2019 at "Computers in biology and medicine"
DOI: 10.1016/j.compbiomed.2019.03.022
Abstract: The ultrafast imaging technique based on plane wave transmission has been a commonly investigated imaging mode in medical ultrasound imaging. Coherent plane-wave compounding (CPWC) was proposed to improve the quality of plane-wave imaging (PWI), which… read more here.
Keywords: plane wave; quality; coherence factor; plane ... See more keywords
Quantitative comparison of frequency-domain and delay-and-sum optoacoustic image reconstruction including the effect of coherence factor weighting
Sign Up to like & getrecommendations! Published in 2020 at "Photoacoustics"
DOI: 10.1016/j.pacs.2019.100149
Abstract: Image reconstruction in optoacoustic imaging is often based on a delay-and-sum (DAS) or a frequency domain (FD) algorithm. In this study, we performed a comprehensive comparison of these two algorithms together with coherence factor (CF)… read more here.
Keywords: reconstruction; delay sum; coherence factor; factor weighting ... See more keywords
Improved ultrasound image quality with pixel-based beamforming using a Wiener-filter and a SNR-dependent coherence factor.
Sign Up to like & getrecommendations! Published in 2021 at "Ultrasonics"
DOI: 10.1016/j.ultras.2021.106594
Abstract: Pixel-based beamforming generates focused data by assuming that the waveforms received on a linear transducer array are composed of spherical pulses. It does not take into account the spatiotemporal spread in the data from the… read more here.
Keywords: wiener filter; coherence factor; based beamforming; pixel based ... See more keywords
Intravascular Ultrasound Imaging With Virtual Source Synthetic Aperture Focusing and Coherence Factor Weighting
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Medical Imaging"
DOI: 10.1109/tmi.2017.2723479
Abstract: Intravascular ultrasound (IVUS) has been frequently used for coronary artery imaging clinically. More importantly, IVUS is the fundamental image modality for most advanced multimodality intravascular imaging techniques, since it provides a more comprehensive picture of… read more here.
Keywords: virtual source; coherence factor; synthetic aperture;
A Mixed Transmitting–Receiving Beamformer With a Robust Generalized Coherence Factor: Enhanced Resolution and Contrast
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2020.2977942
Abstract: Adaptive beamforming has been widely studied for ultrasound imaging over the past few decades. The minimum variance (MV) and generalized coherence factor (GCF) approaches have been validated as effective methods. However, the MV method had… read more here.
Keywords: resolution contrast; method; contrast; generalized coherence ... See more keywords
Refocus criterion based on maximization of the coherence factor in digital three-wavelength holographic interferometry.
Sign Up to like & getrecommendations! Published in 2017 at "Optics letters"
DOI: 10.1364/ol.42.000275
Abstract: This Letter presents an alternative approach for image refocusing in digital Fresnel holography. In the literature, a large majority of reported focus detection criteria is based on amplitude contrast or phase contrast. We propose a… read more here.
Keywords: interferometry; factor; coherence factor; criterion based ... See more keywords