Image processing in swallowing and speech research |
| |
Authors: | Gail Dengel MS JoAnne Robbins PhD John C Rosenbek PhD |
| |
Institution: | (1) Department of Neurology, University of Wisconsin, Madison;(2) Department of Neurology, Room B-6052, William S. Middleton Memorial Veterans Administration Hospital, 2500 Overlook Terrace, 53705 Madison, Wisconsin, USA |
| |
Abstract: | An image processing system for application to studies of the temporal and spatial parameters of movement during swallowing
and speech is described. Image sequences from videotape are digitized for computerized manipulation and analysis in an attempt
to improve on conventional visual inspection. The system is “interactive” or “event-driven”: after executing a function, the
computer waits for guidance from the user who controls the program through keyboard and mouse input, selecting options from
menus and responding to prompts. The analyst alters image clarity by the application of filters and heightens contrast through
video enhancement. A technique called “remapping” reduces head motion and provides uniform spatial scaling. Animated sequences
of images are used, as opposed to frame-by-frame analysis, to preserve temporal context and increase efficiency of measurement.
Low cost off-the-shelf personal computer hardware is used along with original software tailored to the application. |
| |
Keywords: | Video imaging computerized Image processing Swallowing image processing Speech image processing Deglutition Deglutition disorders |
本文献已被 SpringerLink 等数据库收录! |
|