Experimental results for a prototype 3‐D acoustic imaging system using an ultra‐sparse planar array

2002 ◽  
Vol 112 (5) ◽  
pp. 2421-2421
Author(s):  
John M. Impagliazzo ◽  
Alice M. Chiang ◽  
Steven R. Broadstone
Keyword(s):  
Imaging System ◽  
Acoustic Imaging ◽  
Experimental Results ◽  
Planar Array

scholarly journals Experimental Results of a 3-D Millimeter-Wave Compressive Reflector Antenna Imaging System

2019 ◽  
Vol 18 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Weite Zhang ◽  
Ali Molaei ◽  
Juan Heredia-Juesas ◽  
Luis Tirado ◽  
Katherine Graham ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Imaging System ◽  
Reflector Antenna ◽  
Experimental Results

Real Time Acoustic Imaging by Holographic Interferometry

1980 ◽  
Vol 2 (4) ◽  
pp. 313-323 ◽  
Author(s):  
Amin Hanafy ◽  
Mauro Zambuto
Keyword(s):  
Real Time ◽  
Holographic Interferometry ◽  
Vibration Amplitude ◽  
Imaging System ◽  
Mechanical Vibration ◽  
Visual Image ◽  
Acoustic Imaging ◽  
Acoustic Image ◽  
Vibration Pattern ◽  
Amplitude Amplification

A two-step real time acoustic imaging system is presented. The system incorporates a novel acoustic image coupler which transfers an acoustical interference pattern from a water-bounded to an air-bounded surface with vibration amplitude amplification. An original technique termed step-biased real time holographic interferometry is used to convert the amplified mechanical vibration pattern, which carries all information about the insonified object, into a visual image with improved sensitivity.

An Experimental Underwater Acoustic Imaging System Using Multi-Beam Scanning

1980 ◽  
pp. 249-266 ◽  
Author(s):  
Kazuhiko Nitadori ◽  
Kunihiko Mano ◽  
Hiroshi Kamata
Keyword(s):  
Imaging System ◽  
Acoustic Imaging ◽  
Beam Scanning ◽  
Underwater Acoustic

An Underwater Focused Acoustic Imaging System

1982 ◽  
pp. 607-617
Author(s):  
P. Maguer ◽  
J. F. Gelly ◽  
C. Maerfeld ◽  
G. Grall
Keyword(s):  
Imaging System ◽  
Acoustic Imaging

scholarly journals EXPERIMENTAL RESULTS ON A PLANAR ARRAY OF PARASITIC DIPOLES FED BY ONE ACTIVE ELEMENT

2011 ◽  
Vol 113 ◽  
pp. 369-377 ◽  
Author(s):  
Marcos Alvarez Folgueiras ◽  
Juan Antonio Rodríguez-Gonzalez ◽  
Francisco Jose Ares-Pena
Keyword(s):  
Active Element ◽  
Experimental Results ◽  
Planar Array

scholarly journals Leukocyte nucleus segmentation method based on enhancing the saliency of saturation component

2019 ◽  
Vol 13 ◽  
pp. 174830261984578 ◽  
Author(s):  
Yapin Wang ◽  
Yiping Cao
Keyword(s):  
Error Rate ◽  
Blood Smear ◽  
Imaging System ◽  
Experimental Results ◽  
Segmentation Method ◽  
Microscopic Imaging ◽  
Distance Error ◽  
Segmentation Accuracy ◽  
Different Color ◽  
Nucleus Segmentation

The accuracy of the leukocyte nucleus segmentation is an important preprocessing step in the leukocyte automatic analysis. However, different dyeing conditions or different illumination conditions may cause capturing different color leukocyte images in microscopic imaging system, which will result in the over-segmentation or under-segmentation of the leukocyte nucleus. A leukocyte nucleus segmentation method based on enhancing the saliency of the saturation component is proposed. While applying the set of calibration offset values [Formula: see text], [Formula: see text], and [Formula: see text] of the red (R), green (G), and blue (B) chrominance value on the blood smear microscopic images, it can enhance the saliency of the saturation component and the saliency of the leukocyte nucleus region increases the most obviously. The leukocyte nuclei are then segmented using Otsu’s histogram thresholding method. The experimental results show that the proposed algorithm outperforms the related algorithms in segmentation accuracy, over-segmentation rate, error rate, and relative distance error. It improves the accuracy, robustness, and universality further.

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