Phased Array Imaging Algorithm for Endoscopic Ultrasound Based on Synthetic Aperture Imaging Technique

2014 ◽  
Vol 34 (12) ◽  
pp. 1211004
Author(s):  
张闯 Zhang Chuang ◽  
陈晓冬 Chen Xiaodong ◽  
汪毅 Wang Yi ◽  
李莹 Li Ying ◽  
焦志海 Jiao Zhihai ◽  
...  
Keyword(s):  
Endoscopic Ultrasound ◽  
Phased Array ◽  
Imaging Technique ◽  
Synthetic Aperture ◽  
Synthetic Aperture Imaging ◽  
Imaging Algorithm ◽  
Array Imaging

Phased Array Imaging Algorithm for Endoscopic Ultrasound Based on Coded Excitation

2018 ◽  
Vol 55 (1) ◽  
pp. 011103 ◽  
Author(s):  
卞光宇 Bian Guangyu ◽  
汪毅 Wang Yi ◽  
白宝平 Bai Baoping ◽  
李嘉科 Li Jiake ◽  
陈晓冬 Chen Xiaodong
Keyword(s):  
Endoscopic Ultrasound ◽  
Phased Array ◽  
Coded Excitation ◽  
Imaging Algorithm ◽  
Array Imaging

Parallel Implementation of Synthetic Aperture Imaging Algorithm for Endoscopic Ultrasound

2017 ◽  
Vol 54 (10) ◽  
pp. 102001
Author(s):  
李 溦 Li Wei ◽  
陈晓冬 Chen Xiaodong ◽  
李嘉科 Li Jiake ◽  
汪 毅 Wang Yi ◽  
郁道银 Yu Daoyin
Keyword(s):  
Endoscopic Ultrasound ◽  
Parallel Implementation ◽  
Synthetic Aperture ◽  
Synthetic Aperture Imaging ◽  
Imaging Algorithm

scholarly journals REGULARIZATION IMAGING ALGORITHM WITH ACCURATE G MATRIX FOR NEAR-FIELD MMW SYNTHETIC APERTURE IMAGING RADIOMETER

2014 ◽  
Vol 58 ◽  
pp. 193-203 ◽  
Author(s):  
Jianfei Chen ◽  
Yuehua Li ◽  
Jianqiao Wang ◽  
Yuanjiang Li ◽  
Yilong Zhang
Keyword(s):  
Near Field ◽  
Synthetic Aperture ◽  
Synthetic Aperture Imaging ◽  
Imaging Algorithm

New synthetic aperture imaging technique with dynamic apodization window

2012 ◽  
Author(s):  
Dongwon Kim ◽  
Jongho Park ◽  
Jeong Cho ◽  
Tai-Kyong Song ◽  
Yangmo Yoo
Keyword(s):  
Imaging Technique ◽  
Synthetic Aperture ◽  
Synthetic Aperture Imaging

Lateral RF image synthesis using a synthetic aperture imaging technique

2008 ◽  
Vol 55 (9) ◽  
pp. 2097-2103 ◽  
Author(s):  
H. Liebgott ◽  
A. Basarab ◽  
P. Gueth ◽  
C. Cachard ◽  
P. Delachartre
Keyword(s):  
Imaging Technique ◽  
Image Synthesis ◽  
Synthetic Aperture ◽  
Synthetic Aperture Imaging

Ultrafast phased-array imaging with pump excitation for closed-crack imaging

2021 ◽  
Vol 14 (12) ◽  
pp. 126505
Author(s):  
Yoshikazu Ohara ◽  
Sylvain Haupert ◽  
Sinan Li
Keyword(s):  
Nondestructive Evaluation ◽  
Ultrasonic Testing ◽  
High Speed ◽  
Phased Array ◽  
Imaging Technique ◽  
Crack Opening ◽  
Closed Crack ◽  
Wave Imaging ◽  
Crack Dynamics ◽  
Array Imaging

Abstract Nondestructive evaluation of closed cracks is one of the most challenging problems in ultrasonic testing. Here, we propose a novel closed-crack imaging technique combining ultrafast phased-array with pump excitation. The pump excitation with kHz frequency can effectively induce the crack opening/closing behaviors since it can generate a large displacement of 1000 nm order. At the same time, ultrafast phased-array imaging, i.e. plane wave imaging, with MHz frequency stroboscopically captures the high-speed crack dynamics induced by pump excitation. We successfully proved the concept in a closed fatigue crack specimen.

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