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 conferenceObject |
URI: | http://wscg.zcu.cz/WSCG2010/Papers_2010/!_2010_Poster-proceedings.pdf http://hdl.handle.net/11025/1113 |
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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File | Description | Size | Format | |
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Ohnishi.pdf | 170,83 kB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1113
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