Measurement and application of 3D ear images for earphone design

Wonsup Lee, Hayoung Jung, Ilgeun Bok, Chulwoo Kim, Ochae Kwon, Teukgyu Choi, Heecheon You

Research output: Contribution to journalArticleScientificpeer-review


Detail anthropometric dimensions and a 3D shape of the outer-ear are applicable to design ear-related products such as an earphone. However, 3D scanning of the ear part is quite difficult due to a complex shape of the ear, also detailed ear dimensions which are needed to be measured for earphone design were not identified in previous studies. This study collected 3D scan images of the whole outer-ear from 100 Korean participants (50 females and 50 males) aged 20 to 59, then measured their detailed ear dimensions for earphone design. The pinna part was directly 3D scanned;
and complex shape of the concha and acoustic canal parts were cast by applying an ear casting tool, then the cast was scanned in 3D. 13 ear dimensions were measured by applying an ear measurement system coded using Matlab. Both 3D ear scans and ear measurements were applied to design some earphone parts (earphone-head, ear-band, ear-tip) in
this study.
Original languageEnglish
Pages (from-to)1052-1056
Number of pages5
JournalProceedings of the Human Factors and Ergonomics Society Annual Meeting
Issue number1
Publication statusPublished - 2016
EventThe Human Factors and Ergonomics Society (HFES) 60th Annual Meeting - Washington, United States
Duration: 19 Sep 201623 Sep 2016

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