DIGITAL COMPUTER SIMULATION STUDY OF A REAL-TIME COLLECTION, POST-PROCESSING SYNTHETIC FOCUSING ULTRASOUND CARDIAC CAMERA.

Steven A. Johnson, James F Greenleaf, Francis D. Duck, A. Chu, William R. Samayoa, Barry Kent Gilbert

Research output: Chapter in Book/Report/Conference proceedingChapter

11 Scopus citations

Abstract

High resolution images (90% of Rayleigh limit at all depths) were obtained by computer analysis of digitized signals detected with a 32 element lead zirconium titanate 3. 0 MHz array. The acquisition and storage of all received signals allows subsequent approximate calculation of spatial distributions of such parameters as reflection, index of refraction, attenuation, etc. The extension of these techniques through the use of a fast analog and digital computer interface to obtain real-time and stop-action imaging is treated. Examples of images produced by these algorithms, the time requirements of various algorithms as determined by the computation speeds of present and anticipated digital and analog processing hardware is presented.

Original languageEnglish (US)
Title of host publicationAcoust Hologr
Pages193-211
Number of pages19
Volume6
StatePublished - 1975
EventInt Symp on Acoust Hologr and Imaging, 6th, Proc - San Diego, CA, USA
Duration: Feb 4 1975Feb 7 1975

Other

OtherInt Symp on Acoust Hologr and Imaging, 6th, Proc
CitySan Diego, CA, USA
Period2/4/752/7/75

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ASJC Scopus subject areas

  • Engineering(all)

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