Three-dimensional (3D) ear morphology is critical for the design of in-the-ear hearing aids, earphones, transcutaneous auricular vagus nerve stimulation (taVNS) electrodes, and auricular reconstruction, yet most existing ear shape models still rely on manually placed landmarks....
✦ The floor
Discussion
Signed responses from readers of the wire.
No actionable clinical change for practicing audiologists now; this is an engineering methods paper, but the pipeline could eventually improve custom in-the-ear hearing aid fitting accuracy.
Automated 3D ear shape modelling could accelerate and improve the customisation of in-the-ear hearing aids and other ear-worn devices, reducing fitting errors and remakes.
- 01Annotation-free pipeline removes the need for manual landmark placement on ear scans.
- 02A statistical shape model captures natural variation in auricular bowl geometry across individuals.
- 03Primary application is improving the design and fit of in-the-ear (ITE) hearing aids.
- 04Methodology uses surface scans, making it compatible with existing ear-impression and scanning workflows.
- 05Potential to reduce hearing aid remake rates by better matching device to ear anatomy.
An annotation-free pipeline can successfully construct a 3D auricular bowl atlas and statistical shape model from surface scans.
studysupportedThe resulting shape model has direct applications for improving in-the-ear hearing aid design and fitting.
studypartially supported- PMID
- 42281011
- DOI
- 10.3390/s26113493.
- Journal
- Sensors
- Publication type
- research_article
- Evidence level
- na
- Population
- Surface scans of human outer ears (auricular bowl geometry)
- Intervention
- Annotation-free 3D auricular bowl atlas construction and statistical shape modelling pipeline
Primary outcomes
Accuracy and validity of the 3D auricular bowl atlas; Quality of the statistical shape model derived from surface scans