Title: Segmentation technique based on object movement for Speech Production simulation
Authors: Ohnishi, Youhei
Nozaki, Kazunori
Baba, Ken-ichi
Citation: WSCG ’2010: Poster Proceedings: 18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision in co-operation with EUROGRAPHICS, p. 49-52.
Issue Date: 2010
Publisher: Václav Skala - UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/WSCG2010/Papers_2010/!_2010_Poster-proceedings.pdf
ISBN: 978-80-86943-86-2
Keywords: segmentace;aktivní kontury;4D zobrazování;optický tok;magnetická rezonance
Keywords in different language: segmentation;active contours;4D imaging;optical flow;magnetic resonance
Abstract: In this paper, we propose the segmentation technique by using Snakes for 4dimentional magnetic resonance imaging (MRI) data of the movements of the oral tract shapes when pronunciation is performed. In the segmentation of the time-sequence MRI images, there is the specific problem that depends on a tongue shape quick deformation. We found that the Optical Flow of image sets is useful criteria for the decision of the geometry of control points in Snakes. Compared to the normal Snakes, our original method which modified Snakes by utilizing Optical Flow demonstrated superior accuracy of the segmentation of 4D MRI data.
Rights: © Václav Skala - UNION Agency
Appears in Collections:WSCG '2010: Poster Paper Proceedings

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