Warped optical-flow inter-frame reconstruction for ultrasound image enhancement

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Problem statement: Optical flow inter-frame enhancement is one of the techniques to improve the quality of ultrasound images by reducing the speckle noise. The performance depends on accuracy of the optical flow inter-frame reconstruction which is a part of the technique. The speckle noise of an ultrasound image forms certain pattern, of which size of the speckle varies depends on the distance from the transducer. Approach: This study proposed that the use of warping technique prior to as well as after the optical flow to improve the accuracy of the optical flow calculation. The warping function was derived to transform the image from circular grid to rectangular grid. Results: The technique was applied to a series of synthetic moving frames generated from actual ultrasound image taken from a patient heart. The technique improved the accuracy of motion vectors generated from the optical flow. The MSE of the reconstructed frame was also smaller using warped technique compared to that of the non-warped technique. Conclusion: The proposed warping operation was shown to be successful in increasing the accuracy of the frame reconstruction for the optical flow inter-frame enhancement technique.

Original languageEnglish
Pages (from-to)1532-1540
Number of pages9
JournalJournal of Computer Science
Volume7
Issue number10
DOIs
Publication statusPublished - 2011

Fingerprint

Image enhancement
Optical flows
Ultrasonics
Speckle
Acoustic noise
Transducers

Keywords

  • Certain pattern
  • Enhancement technique
  • Inter-frame reconstruction
  • Medical imaging
  • Optical flow
  • Speckle noise
  • Ultrasound image
  • Ultrasound images
  • Ultrasound imaging
  • Warping operation

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Artificial Intelligence

Cite this

Warped optical-flow inter-frame reconstruction for ultrasound image enhancement. / Achmad, Balza; Mustafa, Mohd. Marzuki; Hussain, Aini.

In: Journal of Computer Science, Vol. 7, No. 10, 2011, p. 1532-1540.

Research output: Contribution to journalArticle

@article{ebe59c6836284ed78a5764d6cc1ef7ab,
title = "Warped optical-flow inter-frame reconstruction for ultrasound image enhancement",
abstract = "Problem statement: Optical flow inter-frame enhancement is one of the techniques to improve the quality of ultrasound images by reducing the speckle noise. The performance depends on accuracy of the optical flow inter-frame reconstruction which is a part of the technique. The speckle noise of an ultrasound image forms certain pattern, of which size of the speckle varies depends on the distance from the transducer. Approach: This study proposed that the use of warping technique prior to as well as after the optical flow to improve the accuracy of the optical flow calculation. The warping function was derived to transform the image from circular grid to rectangular grid. Results: The technique was applied to a series of synthetic moving frames generated from actual ultrasound image taken from a patient heart. The technique improved the accuracy of motion vectors generated from the optical flow. The MSE of the reconstructed frame was also smaller using warped technique compared to that of the non-warped technique. Conclusion: The proposed warping operation was shown to be successful in increasing the accuracy of the frame reconstruction for the optical flow inter-frame enhancement technique.",
keywords = "Certain pattern, Enhancement technique, Inter-frame reconstruction, Medical imaging, Optical flow, Speckle noise, Ultrasound image, Ultrasound images, Ultrasound imaging, Warping operation",
author = "Balza Achmad and Mustafa, {Mohd. Marzuki} and Aini Hussain",
year = "2011",
doi = "10.3844/jcssp.2011.1532.1540",
language = "English",
volume = "7",
pages = "1532--1540",
journal = "Journal of Computer Science",
issn = "1549-3636",
publisher = "Science Publications",
number = "10",

}

TY - JOUR

T1 - Warped optical-flow inter-frame reconstruction for ultrasound image enhancement

AU - Achmad, Balza

AU - Mustafa, Mohd. Marzuki

AU - Hussain, Aini

PY - 2011

Y1 - 2011

N2 - Problem statement: Optical flow inter-frame enhancement is one of the techniques to improve the quality of ultrasound images by reducing the speckle noise. The performance depends on accuracy of the optical flow inter-frame reconstruction which is a part of the technique. The speckle noise of an ultrasound image forms certain pattern, of which size of the speckle varies depends on the distance from the transducer. Approach: This study proposed that the use of warping technique prior to as well as after the optical flow to improve the accuracy of the optical flow calculation. The warping function was derived to transform the image from circular grid to rectangular grid. Results: The technique was applied to a series of synthetic moving frames generated from actual ultrasound image taken from a patient heart. The technique improved the accuracy of motion vectors generated from the optical flow. The MSE of the reconstructed frame was also smaller using warped technique compared to that of the non-warped technique. Conclusion: The proposed warping operation was shown to be successful in increasing the accuracy of the frame reconstruction for the optical flow inter-frame enhancement technique.

AB - Problem statement: Optical flow inter-frame enhancement is one of the techniques to improve the quality of ultrasound images by reducing the speckle noise. The performance depends on accuracy of the optical flow inter-frame reconstruction which is a part of the technique. The speckle noise of an ultrasound image forms certain pattern, of which size of the speckle varies depends on the distance from the transducer. Approach: This study proposed that the use of warping technique prior to as well as after the optical flow to improve the accuracy of the optical flow calculation. The warping function was derived to transform the image from circular grid to rectangular grid. Results: The technique was applied to a series of synthetic moving frames generated from actual ultrasound image taken from a patient heart. The technique improved the accuracy of motion vectors generated from the optical flow. The MSE of the reconstructed frame was also smaller using warped technique compared to that of the non-warped technique. Conclusion: The proposed warping operation was shown to be successful in increasing the accuracy of the frame reconstruction for the optical flow inter-frame enhancement technique.

KW - Certain pattern

KW - Enhancement technique

KW - Inter-frame reconstruction

KW - Medical imaging

KW - Optical flow

KW - Speckle noise

KW - Ultrasound image

KW - Ultrasound images

KW - Ultrasound imaging

KW - Warping operation

UR - http://www.scopus.com/inward/record.url?scp=80053213563&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053213563&partnerID=8YFLogxK

U2 - 10.3844/jcssp.2011.1532.1540

DO - 10.3844/jcssp.2011.1532.1540

M3 - Article

AN - SCOPUS:80053213563

VL - 7

SP - 1532

EP - 1540

JO - Journal of Computer Science

JF - Journal of Computer Science

SN - 1549-3636

IS - 10

ER -