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Transducer Misalignment in Ultrasound Tongue Imaging

Csapó, Tamás Gábor and Xu, Kele and Deme, Andrea and Gráczi, Tekla Etelka and Markó, Alexandra (2021) Transducer Misalignment in Ultrasound Tongue Imaging. Proceedings of the 12th International Seminar on Speech Production. pp. 166-169.

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Abstract

A long-standing problem for ultrasound tongue imaging is the transducer misalignment during longer data recording sessions. In this paper, we present an initial idea for analyzing such misalignment. The method employs Mean Square Error (MSE) distance to identify the relative displacement between the chin and the transducer. We visualize these measures as a function of the timestamp of the utterances. Experiments are conducted on various ultrasound tongue datasets (UltraSuite, and recordings of Hungarian children and adults). The results suggest that extreme values of MSE indicate corruptions or issues during the data recordings, which can either be caused by transducer misalignment, lack of gel, or missing contact between the skin and the transducer. The methods are language independent and might be applied in phonetic analysis of ultrasound recordings.

Item Type: Article
Subjects: P Language and Literature / nyelvészet és irodalom > P0 Philology. Linguistics / filológia, nyelvészet
P Language and Literature / nyelvészet és irodalom > PH Finno-Ugrian, Basque languages and literatures / finnugor és baszk nyelvek és irodalom > PH04 Hungarian language and literature / magyar nyelv és irodalom
Depositing User: Dr Andrea Deme
Date Deposited: 28 Sep 2021 13:57
Last Modified: 28 Sep 2021 13:57
URI: http://real.mtak.hu/id/eprint/131169

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