Super-imposing maxillary and palatal locations for electroarticulometry: A SIMPLE method.
This study proposes a method of superimposing a physical palatal profile, extracted from a speaker's maxillary impression, onto real-time mid-sagittal articulatory data. A palatal/dental profile is first obtained by three-dimensional-scanning the maxillary impression of the speaker. Then a high resolution mid-sagittal palatal line, extracted from the profile, is sub-divided into articulatory zones and superimposed, by Iterative Closest Point algorithm, onto reconstructed palatal traces in electromagnetic articulometric (EMA) data. Evaluations were carried out by comparing consonant targets elicited by EMA with the proposed method and by static palatography. The proposed method yields accurate results, as supported by palatography.
Graduate Institute of Linguistics, National Tsing Hua University, Number 101, Section 2 Guangfu Road, Hsinchu 30013, Taiwan.
Wei-rong
WR
Chen
Graduate Institute of Linguistics, National Tsing Hua University, Number 101, Section 2 Guangfu Road, Hsinchu 30013, Taiwan.
Yueh-chin
YC
Chang
MARCS Institute and School of Humanities and Communication Arts, University of Western Sydney, Locked Bag 1797, Penrith, New South Wales 2751, Australia.
Catherine T
CT
Best
New Zealand Institute of Language, Brain and Behaviour, University of Canterbury, Private Bag 4800, Christchurch, New Zealand p@weirongchen.com, ycchang@mx.nthu.edu.tw, c.best@uws.edu.au, donald.derrick@canterbury.ac.nz.
Donald
D
Derrick
D000328:Adult; D000464:Alginates; D000465:Algorithms; D000703:Analog-Digital Conversion; D002133:Calcium Sulfate; D003199:Computer Systems; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D005260:Female; D057918:Fiducial Markers; D020723:Glucuronic Acid; D006603:Hexuronic Acids; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional; D008297:Male; D008437:Maxilla / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D003765:Models, Dental; D010159:Palate / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D010700:Phonetics; D011859:Radiography; D013062:Speech Articulation Tests / Q000295:instrumentation / Q000379:methods*
D000464:Alginates; D003760:Dental Impression Materials; D006603:Hexuronic Acids; D020723:Glucuronic Acid; D002133:Calcium Sulfate