Combined use of iteration, quadratic interpolation and an extra kernel forhigh-resolution 2D particle tracking: A first evaluation

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

A novel 2D particle tracking method, that uses 1) iteration, 2) fastquadratic sub-pixel estimation (with only 28 multiplications per movement), and3) a previous kernel, has been evaluated and compared with a full-searchblock-matching method. The comparison with high-frequency ultrasound data (40MHz) was conducted in silico and on phantoms, which comprised lateral, diagonal,and ellipsoidal movement patterns with speeds of 0-15 mm/s. The mean trackingerror was reduced by 68% in silico and 71% for the phantom measurements. Whenonly sub-pixel estimation was used, the decrease in the tracking error was 61%in silico and 57% for the phantom measurements. As well as decreasing thetracking error, the new method only used 70% of the computational time needed bythe full-search block-matching method. With a fast method having good trackingability for high-frequency ultrasound data, we now have a tool to betterinvestigate tissue movements and its dynamic functionality.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Halmstad University
  • Electrical Measurements
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)

Nyckelord

Originalspråkengelska
Titel på värdpublikation2010 IEEE International Ultrasonics Symposium, IUS 2010
Sidor2000-2003
StatusPublished - 2010 dec 1
PublikationskategoriForskning
Peer review utfördJa
Evenemang2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, USA
Varaktighet: 2010 okt 112010 okt 14

Konferens

Konferens2010 IEEE International Ultrasonics Symposium, IUS 2010
LandUSA
OrtSan Diego, CA
Period2010/10/112010/10/14