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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1977-5-20
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pubmed:abstractText |
A study has been carried out to investigate digital techniques which can be used to form fully focussed acoustic images. An algebraic approach was used rather than a Fourier technique. Pulse-echo data was digitized from a 2.4 cm long, 32 element, 3 MHz linear array. Water bath tests have demonstrated azimuthal resolution close to beig diffraction limited throughout the field of view. Good images of tissue samples in-vitro have been obtained. Consideration of image sampling requirements and symmetry properties have led to the development of an efficient processing algorithm.
|
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
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pubmed:month |
Mar
|
pubmed:issn |
0041-624X
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
15
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
83-8
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pubmed:dateRevised |
2009-11-11
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pubmed:meshHeading | |
pubmed:year |
1977
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pubmed:articleTitle |
Digital image focussing in the near field of a sampled acoustic aperture.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|