The Acoustic Analysis Method of the External Ear Canal Using DICOM Images

Journal of the Korea Convergence Society (한국융합학회논문지)

• Volume 10 Issue 3
 
• /
 
• Pages.73-79
 
• /
 
• 2019
 
• /
 
• 2233-4890(pISSN)

Korea Convergence Society (한국융합학회)

DOI QR Code

A Study on the Acoustic Analysis Method of the External Ear Canal Using DICOM Images

DICOM 영상을 이용한 외이도 음향해석 방법에 관한 연구

Kim, Hyeong-Gyun 
김형균

• Received : 2018.12.12
 
• Accepted : 2019.03.20
 
• Published : 2019.03.28

• https://doi.org/10.15207/JKCS.2019.10.3.073  Citation PDF

•  5  0

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Abstract

This study simulated external ear canal modeling with different external ear canal lengths, vertical flexion angles, and inner/outer diameter ratios using digital imaging and communications in medicine(DICOM) of the head temporal region and measured the acoustic sensitivity. The experiment was performed by increasing the audible frequency for humans by 200 Hz and expressing the frequency constantly transmitted at 1 Pa as the eardrum acoustic volume and presented the measurements by linear and quadratic curve regression analysis. The results showed that the longer the external ear canal length and the higher the ratio of the outer/inner diameter, the faster the acoustic response at lower frequencies. The acoustic sensitivity correlation of the meta-model using regression analysis showed a 77% influence by the external ear canal length and 5% by the external/internal diameter ratio, while the vertical flexion angle did not show a significant relationship. This showed that auditory acoustic sensitivity of humans is a factor that reacts faster at a low frequency when the external ear canal length is longer and when the difference between the outer and inner diameter is higher.

Keywords

DICOM;external ear canal modeling;auditory acoustic;frequency;regression analysis

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Acknowledgement

Supported by : Far East University

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
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