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High-speed imaging of the larynxSvante GranqvistIn this project methods for analysis of high-speed laryngoscopic image sequences are developed.Example of high-speed recordingThese recordings were made at Huddinge University Hospital, department of Logopedics and Phoniatrics. The high-speed
camera has a resolution of 256 by 64 pixels and recordings were made at approximately 1900 images per second. The
images were recorded with a flexible endoscope fed through the nose. The end of the endoscope is positioned centimeters
above the glottis. On this page, the playback speed is reduced to about 3 images per second (the factor may vary
depending on your web browser and hardware).
In my licentiate thesis we propose a metod for analysis of recordings, like the one above. The method is based on Fourier transfomations of the light intensity at different locations in the image. |