Super-resolution of ultrasound images by displacement, averaging, and interlacing

Sonia H. Ortiz, James Macione, Tsuicheng Chiu, Martin D. Fox

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Ultrasound is a widely used medical imaging methodology because it is safe and relatively inexpensive. However, the quality of the images is affected by the point spread function of the system and coherent wave interference or speckle. The present research studies the averaging of images that have been displaced laterally and displays them using an interlaced grid. The main goals are to reduce speckle and improve contrast and resolution. The point spread function of the ultrasound scanner was estimated using a thin nylon thread within a water bath. Then, a set of eight images of a breast phantom (having lateral displacements smaller than the width of the point spread function) were averaged and interlaced. The results show a total improvement of 4% in signal to noise ratio and 7% in contrast to noise ratio. Keywords: Point spread function, Image registration, Interlaced sampling.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2009
Subtitle of host publicationUltrasonic Imaging and Signal Processing
DOIs
StatePublished - Jun 19 2009
Externally publishedYes
EventMedical Imaging 2009: Ultrasonic Imaging and Signal Processing - Lake Buena Vista, FL, United States
Duration: Feb 8 2009Feb 9 2009

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7265
ISSN (Print)1605-7422

Other

OtherMedical Imaging 2009: Ultrasonic Imaging and Signal Processing
CountryUnited States
CityLake Buena Vista, FL
Period2/8/092/9/09

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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    Ortiz, S. H., Macione, J., Chiu, T., & Fox, M. D. (2009). Super-resolution of ultrasound images by displacement, averaging, and interlacing. In Medical Imaging 2009: Ultrasonic Imaging and Signal Processing [726519] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7265). https://doi.org/10.1117/12.812883