Meninges

Adeeb, Nimer; Mortazavi, Martin M.; Tubbs, R. Shane

doi:10.1002/9781118430309.ch81

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2023

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“…An accurate description of the ear canal is scarce in the literature and it is surprising that few have studied the normal ear canal in detail. It is more common to find descriptions of pathological ear types than of normal ones 2 – 4 . A good understanding of the ear canal shape has implications downstream on hearing-aid amplification, as it allows for accurate positioning of the receiver and a snug fit of the ear mold 5 .…”

Section: Introductionmentioning

confidence: 99%

Lexicon for classifying ear-canal shapes

Martinez,

Hwee,

Yap

et al. 2023

Sci Rep

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The ear canal is usually described as an S-shaped funnel. In attempting to classify ear-canal shapes obtained from point clouds digitized from molds of 300 ears, the problem of designing criteria for distinguishing and organizing the canal shapes arose. In this work, we extracted features inspired by the S-shape characteristic (critical point, maximum, minimum, twist, writhe, translation, rotation) and, through them, introduced 14 types of ear-canal shapes. This classification allowed comparison of ears within a type and of ears between different types. It expanded our range of descriptors of canal shapes and unlocked perspectives for applications.

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Section: Introductionmentioning

confidence: 99%