Super-resolution photoacoustic and ultrasound imaging with sparse arrays
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-61083-2
Abstract: It has previously been demonstrated that model-based reconstruction methods relying on a priori knowledge of the imaging point spread function (PSF) coupled to sparsity priors on the object to image can provide super-resolution in photoacoustic… read more here.
Keywords: reconstruction; resolution; super resolution; resolution photoacoustic ... See more keywords
Comparative Analysis of SVM and CNN for Sonar Signal Classification Using Sparse Arrays
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Access"
DOI: 10.1109/access.2024.3393893
Abstract: Coprime and nested sparse arrays are two widely researched sparse arrays. These arrays, requiring fewer sensors compared to full uniform linear arrays (ULAs), still have a high number of degrees of freedom. The reduced sensor… read more here.
Keywords: classification; svm cnn; comparative analysis; sparse arrays ... See more keywords
Pruned Distributed and Parallel Subarray Beamforming for 3-D Underwater Imaging With Fine-Grid Sparse Arrays
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Oceanic Engineering"
DOI: 10.1109/joe.2021.3056705
Abstract: The development of real-time 3-D underwater imaging systems with large planar arrays involves high hardware costs and great computational burden. This study proposes the concept of fine-grid sparse arrays and the pruned distributed and parallel… read more here.
Keywords: pruned distributed; underwater imaging; grid sparse; sparse arrays ... See more keywords
Synthesis of Sparse Arrays With Discrete Phase Constraints via Mixed-Integer Programming
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2023.3342143
Abstract: Synthesizing sparse arrays with discrete phase constraints is a critical problem in many applications. In this letter, we present a novel approach for synthesizing sparse arrays with discrete phase constraints using mixed-integer programming (MIP). The… read more here.
Keywords: mixed integer; discrete phase; arrays discrete; phase constraints ... See more keywords
Spectral Doppler Measurements With 2-D Sparse Arrays
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2019.2944090
Abstract: The 2-D sparse arrays, in which a few hundreds of elements are distributed on the probe surface according to an optimization procedure, represent an alternative to full 2-D arrays, including thousands of elements usually organized… read more here.
Keywords: array; doppler; spectral doppler; doppler measurements ... See more keywords
Design, Implementation, and Medical Applications of 2-D Ultrasound Sparse Arrays
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3162419
Abstract: An ultrasound sparse array consists of a sparse distribution of elements over a 2-D aperture. Such an array is typically characterized by a limited number of elements, which in most cases is compatible with the… read more here.
Keywords: implementation medical; medical applications; ultrasound sparse; sparse arrays ... See more keywords
Costas Sparse 2-D Arrays for High-Resolution Ultrasound Imaging
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2023.3256339
Abstract: Two-dimensional arrays enable volumetric ultrasound imaging but have been limited to small aperture size and hence low resolution due to the high cost and complexity of fabrication, addressing, and processing associated with large fully addressed… read more here.
Keywords: high resolution; resolution; ultrasound imaging; sparse arrays ... See more keywords
A Deep Reinforcement Learning Based Region-Specific Beamformer for Sparse Arrays 3-D Ultrasound Imaging
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2025.3560872
Abstract: Sparse arrays offer several advantages over other element reduction techniques for 3-D ultrasound imaging. However, the large interelement spacing in these arrays results in high sidelobe-related artifacts, which significantly degrade image quality and limit their… read more here.
Keywords: region specific; specific beamformer; rsb net; ultrasound imaging ... See more keywords
Synthesis of Sparse Arrays Based On CIGA (Convex Improved Genetic Algorithm)
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Microwaves, Optoelectronics and Electromagnetic Applications"
DOI: 10.1590/2179-10742020v19i4865
Abstract: In this paper, a novel hybrid algorithm on beam pattern synthesis of sparse arrays is proposed,which aims at minimizing the peak sidelobe level (PSLL). Sparse arrays can provide higher spatial resolution and relatively lower sidelobe… read more here.
Keywords: improved genetic; sparse arrays; genetic algorithm; synthesis sparse ... See more keywords