Experimental results with a real-time adaptive ultrasonic imaging system for viewing through distorting media.

Journal Article

An online adaptive phased-array ultrasonic imaging system capable of markedly improving the detectability of targets viewed through inhomogeneous media is described. An online adaptive phase correction technique implemented on a research phased-array scanner is described. The theoretical basis for this technique is presented by describing the relationship between the magnitude of phase aberrations and the regional brightness of speckle and pointlike targets. The system currently generates a corrected image in approximately 0.1 s and utilizes no prior knowledge of the aberrating media or the target. The adaptive imaging algorithm uses regional target brightness as a quality factor. The results of in vitro tests with this system using electronic and physical aberrators for both diffuse and pointlike targets are presented.

Full Text

Duke Authors

Cited Authors

  • Trahey, G; Zhao, D; Miglin, JA; Smith, SW

Published Date

  • 1990

Published In

Volume / Issue

  • 37 / 5

Start / End Page

  • 418 - 427

PubMed ID

  • 18285059

International Standard Serial Number (ISSN)

  • 0885-3010

Digital Object Identifier (DOI)

  • 10.1109/58.105248

Language

  • eng

Conference Location

  • United States