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7 Results Found

  • Article
  • Open Access
4 Citations
3,975 Views
22 Pages

2 January 2024

For ultrasound multi-angle plane wave (PW) imaging, the coherent PW compounding (CPWC) method provides limited image quality because of its conventional delay-and-sum beamforming. The delay-multiply-and-sum (DMAS) method is a coherence-based algorith...

(This article belongs to the Special Issue Ultrasonic Imaging and Sensors II)
  • Article
  • Open Access
3 Citations
2,834 Views
15 Pages

An Improved Spatio-Temporally Smoothed Coherence Factor Combined with Delay Multiply and Sum Beamformer

  • Ziyang Guo,
  • Xingguang Geng,
  • Fei Yao,
  • Liyuan Liu and ,
  • Chaohong Zhang,
  • Yitao Zhang and
  • Yunfeng Wang
  • + 2 authors+ 0 author

15 September 2023

Delay multiply and sum beamforming (DMAS) is a non-linear method used in ultrasound imaging which offers superior performance to conventional delay and sum beamforming (DAS). While the combination of DMAS and coherence factor (CF) can further improve...

(This article belongs to the Special Issue Advances in Intelligent Data Analysis and Its Applications)
  • Article
  • Open Access
28 Citations
5,039 Views
14 Pages

23 September 2019

Ultrasonic multi-angle plane-wave (PW) coherent compounding relies on delay-and-sum (DAS) beamforming of two-dimensional (2D) echo matrix in both the dimensions PW transmit angle and receiving channel to construct each image pixel. Due to the charact...

(This article belongs to the Special Issue Advanced Ultrasound Technology for Medical Application)
  • Article
  • Open Access
82 Citations
7,383 Views
21 Pages

Evaluation of Image Reconstruction Algorithms for Confocal Microwave Imaging: Application to Patient Data

  • Muhammad Adnan Elahi,
  • Declan O’Loughlin,
  • Benjamin R. Lavoie,
  • Martin Glavin and ,
  • Edward Jones,
  • Elise C. Fear and
  • Martin O’Halloran
  • + 2 authors+ 0 author

23 May 2018

Confocal Microwave Imaging (CMI) for the early detection of breast cancer has been under development for over two decades and is currently going through early-phase clinical evaluation. The image reconstruction algorithm is a key signal processing co...

(This article belongs to the Special Issue Sensors for Microwave Imaging and Detection)
  • Article
  • Open Access
15 Citations
2,530 Views
19 Pages

6 September 2024

Finite impulse response (FIR) filters are explicitly used in decisive applications such as communication and signal processing areas. Advancement in the latest technologies necessitates specific designs with optimal characteristics. This research wor...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
5 Citations
2,657 Views
17 Pages

14 March 2024

Three-dimensional passive acoustic mapping (PAM) with matrix arrays typically suffers from high demands on the receiving electronics and high computational load. In our study, we investigated, both numerically and experimentally, the influence of mat...

(This article belongs to the Collection Ultrasound Transducers)
  • Article
  • Open Access
12 Citations
4,421 Views
20 Pages

27 May 2025

In this study, a novel improved ultra-wideband (UWB) antipodal Vivaldi antenna suitable for breast cancer detection via microwave imaging was designed. The antenna was made more directional by adding three pairs of nestings to the antenna fins by add...

(This article belongs to the Section Electrical, Electronics and Communications Engineering)