SIR analysis for Enhancing Image Quality in Underwater Acoustic Lens System

2014 ◽  
Vol 51 (4) ◽  
pp. 181-190
Author(s):  
Jieun Lee ◽  
Sungbin Im ◽  
Taebo Shim
Keyword(s):  
Image Quality ◽  
Lens System ◽  
Underwater Acoustic ◽  
Acoustic Lens

Finite Difference Time Domain Analysis of Underwater Acoustic Lens System for Ambient Noise Imaging

2006 ◽  
Vol 45 (5B) ◽  
pp. 4834-4841 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Ayano Miyazaki ◽  
Hanako Ogasawara ◽  
Tomoki Yokoyama ◽  
Toshiaki Nakamura
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Ambient Noise ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Lens System ◽  
Underwater Acoustic ◽  
Acoustic Lens ◽  
Difference Time

Real-time three-dimensional optoacoustic imaging using an acoustic lens system

2004 ◽  
Vol 85 (5) ◽  
pp. 846-848 ◽  
Author(s):  
J. J. Niederhauser ◽  
M. Jaeger ◽  
M. Frenz
Keyword(s):  
Real Time ◽  
Three Dimensional ◽  
Lens System ◽  
Optoacoustic Imaging ◽  
Acoustic Lens

Shape and topology optimization of acoustic lens system using phase field method

2017 ◽  
Vol 56 (3) ◽  
pp. 713-729 ◽  
Author(s):  
Quang Dat Tran ◽  
Gang-Won Jang ◽  
Hyu-Sang Kwon ◽  
Wan-Ho Cho
Keyword(s):  
Topology Optimization ◽  
Phase Field ◽  
Field Method ◽  
Phase Field Method ◽  
Lens System ◽  
Shape And Topology Optimization ◽  
Acoustic Lens ◽  
And Topology

scholarly journals Image Quality Assessment Method for Underwater Acoustic Communication Based on Digital Watermarking

2013 ◽  
Vol 765-767 ◽  
pp. 562-566
Author(s):  
Zheng Shan Ye ◽  
Fei Yuan ◽  
En Cheng ◽  
Cong Ren Lin
Keyword(s):  
Image Quality ◽  
Quality Assessment ◽  
Image Quality Assessment ◽  
Reference Image ◽  
Underwater Acoustic Communication ◽  
Watermark Image ◽  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel ◽  
Channel Distortion

This paper proposes a method of reduced-reference image quality assessment based on watermarking algorithm in underwater acoustic channel. By embedding the watermark image into the original one, then delivering the combined image through the channel distortion, the same channel distortion would be exposed to the original and the watermark image. In the receiver, we use the blind extraction methods to recover the watermark image and use the watermark degradation to evaluate the quality of the original one. In this paper, we build two kinds of channels: AWGN channel and Rice fading channel to validate the feasibility of the method which would be used in the underwater acoustic channel.

Imaging Performance Evaluation Method of Wide-View Underwater Acoustic Lens by Geometrical Skew Ray Analysis

2010 ◽  
Vol 49 (7) ◽  
pp. 07HG02 ◽  
Author(s):  
Sayuri Matsumoto ◽  
Norihide Takeyama ◽  
Takenobu Tsuchiya ◽  
Nobuyuki Endoh
Keyword(s):  
Performance Evaluation ◽  
Evaluation Method ◽  
Underwater Acoustic ◽  
Acoustic Lens ◽  
Performance Evaluation Method ◽  
Imaging Performance
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