Abstract
A computerized technique combining backward wave propagation and an automatic edge detection scheme has been developed and tested. The class of objects considered is limited to those with edge boundaries since it can be shown that a universal automatic reconstruction scheme cannot be obtained for all possible objects. Using samples of the acoustic diffraction pattern as input data, this technique enables the computer to predict the most likely locations of objects and to produce graphical output of the objects. A simplified edge detection scheme conserving both memory space and computer time was used. Test results are presented for both computer generated diffraction patterns and one set of experimental data.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
M. M. Sondhi, “Reconstruction of objects from their sound diffraction patterns,” Journal of the Acoustical Society of America, 46 (5) : 1158–1164, 1969.
A. L. Boyer et al., “Computer reconstructions of images from ultrasonic holograms,” Acoustical Holography, Vol. 2, A. F. Metherell and L. Larmore, Eds., Chapter 15, pp. 211–223, Springer Science+Business Media New York, 1970.
A. L. Boyer et al., “Reconstruction of ultraimages by backward wave propagation,” Acoustical Holography, Vol. 3, A. F. Metherell, Ed., Chapter 18, pp. 333–348, Springer Science+Business Media New York, 1971.
J. W. Goodman, “Digital image formation from detected holographic data,” Acoustical Holography, Vol. 1, A. F. Metherell, H.M.A. El-Sum and L. Larmore, Eds., Chapter 12, pp. 173–185, Springer Science+Business Media New York, 1969.
J. W. Goodman, Introduction to Fourier Optics, Chapter 3, McGraw-Hill, New York, 1968.
W. T. Cochran, et al., “What is the Fast Fourier Transform?” IEEE Trans. on Audio and Electro-acoustics, AV-15(2):45–55, 1967.
T. R. Shewell and E. Wolf, “Inverse diffraction and a new reciprocity theorem,” Journal of the Optical Society of America, 58 (12):1596–1603, 1968.
D. E. Mueller, A Computerized Acoustic Imaging Technique Incorporating Automatic Object Recognition, Electrical Engineer’s Degree Thesis, Naval Postgraduate School, Monterey, California, 1973.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1974 Springer Science+Business Media New York
About this chapter
Cite this chapter
Powers, J.P., Mueller, D.E. (1974). A Computerized Acoustic Imaging Technique Incorporating Automatic Object Recognition. In: Green, P.S. (eds) Acoustical Holography. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0827-1_30
Download citation
DOI: https://doi.org/10.1007/978-1-4757-0827-1_30
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-0829-5
Online ISBN: 978-1-4757-0827-1
eBook Packages: Springer Book Archive