Physical factors affecting the performance of two-dimensional vector flow imaging
A two-dimensional correlation technique is capable of measuring target velocities in any direction in the imaging plane. The inaccuracy in the measurements is related to system parameters such as signal-to-noise ratios, correlation coefficients, and spatial frequencies, and it is shown how factors s...
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| container_end_page | 1230 vol.2 |
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| creator | Ramamurthy, B.S. Trahey, G.E. |
| description | A two-dimensional correlation technique is capable of measuring target velocities in any direction in the imaging plane. The inaccuracy in the measurements is related to system parameters such as signal-to-noise ratios, correlation coefficients, and spatial frequencies, and it is shown how factors such as pulse bandwidth, stationary noise, and focal errors can introduce errors in the measurements. The effect of the anisotropic nature of speckle in the axial and lateral dimensions on the magnitude of errors in the two dimensions is discussed.< > |
| doi_str_mv | 10.1109/ULTSYM.1992.275857 |
| format | Conference Proceeding |
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The inaccuracy in the measurements is related to system parameters such as signal-to-noise ratios, correlation coefficients, and spatial frequencies, and it is shown how factors such as pulse bandwidth, stationary noise, and focal errors can introduce errors in the measurements. The effect of the anisotropic nature of speckle in the axial and lateral dimensions on the magnitude of errors in the two dimensions is discussed.< ></description><identifier>ISBN: 0780305620</identifier><identifier>ISBN: 9780780305625</identifier><identifier>DOI: 10.1109/ULTSYM.1992.275857</identifier><language>eng</language><publisher>IEEE</publisher><subject>Biomedical measurements ; Decorrelation ; Frequency measurement ; Jitter ; Kernel ; Noise measurement ; Pulse measurements ; Signal to noise ratio ; Speckle ; Wavelength measurement</subject><ispartof>IEEE 1992 Ultrasonics Symposium Proceedings, 1992, p.1227-1230 vol.2</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/275857$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,776,780,785,786,2051,4035,4036,27904,54898</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/275857$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Ramamurthy, B.S.</creatorcontrib><creatorcontrib>Trahey, G.E.</creatorcontrib><title>Physical factors affecting the performance of two-dimensional vector flow imaging</title><title>IEEE 1992 Ultrasonics Symposium Proceedings</title><addtitle>ULTSYM</addtitle><description>A two-dimensional correlation technique is capable of measuring target velocities in any direction in the imaging plane. The inaccuracy in the measurements is related to system parameters such as signal-to-noise ratios, correlation coefficients, and spatial frequencies, and it is shown how factors such as pulse bandwidth, stationary noise, and focal errors can introduce errors in the measurements. The effect of the anisotropic nature of speckle in the axial and lateral dimensions on the magnitude of errors in the two dimensions is discussed.< ></description><subject>Biomedical measurements</subject><subject>Decorrelation</subject><subject>Frequency measurement</subject><subject>Jitter</subject><subject>Kernel</subject><subject>Noise measurement</subject><subject>Pulse measurements</subject><subject>Signal to noise ratio</subject><subject>Speckle</subject><subject>Wavelength measurement</subject><isbn>0780305620</isbn><isbn>9780780305625</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1992</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotz01OwzAQBWBLCAkovUBXvkCC7cTxeIkq_qQgQIQFq8qxx61REldxRNXbk6rM5q2-9zSErDjLOWf67qtuPr9fc661yIWSINUFuWEKWMFkJdgVWab0w-aTErSAa_LxvjumYE1HvbFTHBM13qOdwrCl0w7pHkcfx94MFmn0dDrEzIUehxTiMKNfPCHqu3igoTfbmd2SS2-6hMv_XJDm8aFZP2f129PL-r7OAugp420hoMTWKWWrUqPlRhatdxVW4EQrpWsVF5V0WpVGodAOQCsOklk_AygWZHWuDYi42Y_z-njcnH8u_gBB1067</recordid><startdate>1992</startdate><enddate>1992</enddate><creator>Ramamurthy, B.S.</creator><creator>Trahey, G.E.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1992</creationdate><title>Physical factors affecting the performance of two-dimensional vector flow imaging</title><author>Ramamurthy, B.S. ; Trahey, G.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i89t-1b3284ebd77c649ec1a53bfd6e68d2b55db71265d974a7e29d88971850cfc6483</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Biomedical measurements</topic><topic>Decorrelation</topic><topic>Frequency measurement</topic><topic>Jitter</topic><topic>Kernel</topic><topic>Noise measurement</topic><topic>Pulse measurements</topic><topic>Signal to noise ratio</topic><topic>Speckle</topic><topic>Wavelength measurement</topic><toplevel>online_resources</toplevel><creatorcontrib>Ramamurthy, B.S.</creatorcontrib><creatorcontrib>Trahey, G.E.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ramamurthy, B.S.</au><au>Trahey, G.E.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Physical factors affecting the performance of two-dimensional vector flow imaging</atitle><btitle>IEEE 1992 Ultrasonics Symposium Proceedings</btitle><stitle>ULTSYM</stitle><date>1992</date><risdate>1992</risdate><spage>1227</spage><epage>1230 vol.2</epage><pages>1227-1230 vol.2</pages><isbn>0780305620</isbn><isbn>9780780305625</isbn><abstract>A two-dimensional correlation technique is capable of measuring target velocities in any direction in the imaging plane. The inaccuracy in the measurements is related to system parameters such as signal-to-noise ratios, correlation coefficients, and spatial frequencies, and it is shown how factors such as pulse bandwidth, stationary noise, and focal errors can introduce errors in the measurements. The effect of the anisotropic nature of speckle in the axial and lateral dimensions on the magnitude of errors in the two dimensions is discussed.< ></abstract><pub>IEEE</pub><doi>10.1109/ULTSYM.1992.275857</doi></addata></record> |
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| identifier | ISBN: 0780305620 |
| ispartof | IEEE 1992 Ultrasonics Symposium Proceedings, 1992, p.1227-1230 vol.2 |
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| language | eng |
| recordid | cdi_ieee_primary_275857 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Biomedical measurements Decorrelation Frequency measurement Jitter Kernel Noise measurement Pulse measurements Signal to noise ratio Speckle Wavelength measurement |
| title | Physical factors affecting the performance of two-dimensional vector flow imaging |
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