TY - GEN
T1 - Articulatory space calibration in 3D electro-magnetic articulography
AU - Ji, An
AU - Johnson, Michael T.
AU - Berry, Jeffrey
PY - 2013
Y1 - 2013
N2 - This paper introduces a new method to calibrate data collected using Electro-Magnetic Articulography (EMA) into an appropriate articulatory space. A bite plate record for a target subject is used to define the maxillary occlusal and midsagittal planes, and then a single quaternion rotation is derived to transform the dataset into the new anatomically referenced space. The choice of specific rotation solution is discussed relative to the corresponding anatomical assumptions regarding the original sensor placement and coordinate system. Data were collected using NDI Wave Speech Research System for one pilot subject, and calibration results and consistency throughout the calibration record reviewed. The results show that the rotation solution can accurately and consistently transform all sensors' positions into an articulatory space in which sensor movements and orientations can be easily analyzed. This preliminary study enables the investigation of articulatory kinematics and relationship to acoustics.
AB - This paper introduces a new method to calibrate data collected using Electro-Magnetic Articulography (EMA) into an appropriate articulatory space. A bite plate record for a target subject is used to define the maxillary occlusal and midsagittal planes, and then a single quaternion rotation is derived to transform the dataset into the new anatomically referenced space. The choice of specific rotation solution is discussed relative to the corresponding anatomical assumptions regarding the original sensor placement and coordinate system. Data were collected using NDI Wave Speech Research System for one pilot subject, and calibration results and consistency throughout the calibration record reviewed. The results show that the rotation solution can accurately and consistently transform all sensors' positions into an articulatory space in which sensor movements and orientations can be easily analyzed. This preliminary study enables the investigation of articulatory kinematics and relationship to acoustics.
KW - Electro-Magnetic Articulography
KW - articulatory space
KW - quaternion representation
UR - http://www.scopus.com/inward/record.url?scp=84889580085&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84889580085&partnerID=8YFLogxK
U2 - 10.1109/ChinaSIP.2013.6625318
DO - 10.1109/ChinaSIP.2013.6625318
M3 - Conference contribution
AN - SCOPUS:84889580085
SN - 9781479910434
T3 - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings
SP - 155
EP - 159
BT - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings
T2 - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013
Y2 - 6 July 2013 through 10 July 2013
ER -