On the design of a transversal filter bank for parallel processing multiple image lines in real-time acoustic imaging

Parallel processing methods in Geographic Information Systems (GIS) are traditionally used to accelerate the calculation of large data volumes with sophisticated spatial algorithms. Such kinds of acceleration can also be applied to provide real-time GIS applications to improve the responsiveness of user interactions with the data. This paper presents a method to enable this approach for Web GIS applications. It uses the JavaScript 3D graphics API (WebGL) to perform client-side parallel real-time computations of 2D or 2.5D spatial raster algorithms on the graphics card. The potential of this approach is evaluated using an example implementation of a hillshade algorithm. Performance comparisons of parallel and sequential computations reveal acceleration factors between 25 and 100, mainly depending on mobile or desktop environments.

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Implementation Of Real-time Control Schemes On A Parallel Processing Architecture Using Transputers

Singapore International Conference on Intelligent Control and Instrumentation [Proceedings 1992] ◽

10.1109/sicici.1992.637632 ◽

2005 ◽

Cited By ~ 2

Author(s):

G. Yasuda ◽

K. Tachibana

Keyword(s):

Parallel Processing ◽

Real Time ◽

Real Time Control ◽

Time Control ◽

Control Schemes ◽

Processing Architecture

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A real time parallel processing data acquisition system

Proceedings. Real-Time Systems Symposium ◽

10.1109/real.1988.51100 ◽

2003 ◽

Cited By ~ 4

Author(s):

N.A. Wilkinson ◽

M.S. Atkins ◽

J.G. Rogers

Keyword(s):

Parallel Processing ◽

Data Acquisition ◽

Real Time ◽

Data Acquisition System ◽

Acquisition System ◽

Processing Data

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Real Time Acoustic Imaging by Holographic Interferometry

Ultrasonic Imaging ◽

10.1177/016173468000200403 ◽

1980 ◽

Vol 2 (4) ◽

pp. 313-323 ◽

Cited By ~ 1

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.

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