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Proceedings Paper

Perceptual Studies Of Contrast, Texture And Detail In Ultrasound B-Scans
Author(s): H. Lowe; J. C. Bamber; S. Webb; G. Cook-Martin
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Paper Abstract

Equipment has been set up for the assessment of observer performance in visual perception studies for testing the efficacy of ultrasound image enhancement techniques developed at the Royal Marsden Hospital. A variant of the Blackwell spatial forced choice experiment was conducted which produced contrast-detail curves of the detectability of uniform discs in a uniform background using a computer controlled experiment and a 512x512 by 8 bit digital video display. A method is described for synthesizing texture with the same statistical properties as B-scan speckle and for incorporating low contrast targets into such images. This model was used in a pilot study to determine approximate thresholds for the detection of speckle modulated discs in a speckle background. The results serve to define the basic limitations of the image display system being used, which is similar to those found in many commercial ultrasound scanners.

Paper Details

Date Published: 27 June 1988
PDF: 8 pages
Proc. SPIE 0914, Medical Imaging II, (27 June 1988); doi: 10.1117/12.968613
Show Author Affiliations
H. Lowe, Royal Marsden Hospital (England)
J. C. Bamber, Royal Marsden Hospital (England)
S. Webb, Royal Marsden Hospital (England)
G. Cook-Martin, Royal Marsden Hospital (England)


Published in SPIE Proceedings Vol. 0914:
Medical Imaging II
Samuel J. Dwyer; Roger H. Schneider; Roger H. Schneider; Samuel J. Dwyer; Samuel J. Dwyer; Roger H. Schneider, Editor(s)

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