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Proceedings Paper

Interactive image processing in swallowing research
Author(s): Gail A. Dengel; JoAnne Robbins; John C. Rosenbek
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Paper Abstract

Dynamic radiographic imaging of the mouth, larynx, pharynx, and esophagus during swallowing is used commonly in clinical diagnosis, treatment and research. Images are recorded on videotape and interpreted conventionally by visual perceptual methods, limited to specific measures in the time domain and binary decisions about the presence or absence of events. An image processing system using personal computer hardware and original software has been developed to facilitate measurement of temporal, spatial and temporospatial parameters. Digitized image sequences derived from videotape are manipulated and analyzed interactively. Animation is used to preserve context and increase efficiency of measurement. Filtering and enhancement functions heighten image clarity and contrast, improving visibility of details which are not apparent on videotape. Distortion effects and extraneous head and body motions are removed prior to analysis, and spatial scales are controlled to permit comparison among subjects. Effects of image processing on intra- and interjudge reliability and research applications are discussed.

Paper Details

Date Published: 1 June 1991
PDF: 7 pages
Proc. SPIE 1445, Medical Imaging V: Image Processing, (1 June 1991); doi: 10.1117/12.45205
Show Author Affiliations
Gail A. Dengel, Univ. of Wisconsin/Madison and William S. Middleton Memorial (United States)
JoAnne Robbins, Univ. of Wisconsin/Madison and William S. Middleton Memorial (United States)
John C. Rosenbek, William S. Middleton Memorial Veterans Administration Hospit (United States)

Published in SPIE Proceedings Vol. 1445:
Medical Imaging V: Image Processing
Murray H. Loew, Editor(s)

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