Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging
The reconstruction of the acoustic properties of a neonate finless porpoise's head was performed using X-ray computed tomography (CT). The head of the deceased neonate porpoise was also segmented across the body axis and cut into slices. The averaged sound velocity and density were measured, an...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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PUBLIC LIBRARY SCIENCE
2015
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/76258 |
| _version_ | 1848763656182956032 |
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| author | Wei, Chong Wang, Zhitao Song, Zhongchang Wang, Kexiong Wang, Ding Au, Whitlow WL Zhang, Yu |
| author_facet | Wei, Chong Wang, Zhitao Song, Zhongchang Wang, Kexiong Wang, Ding Au, Whitlow WL Zhang, Yu |
| author_sort | Wei, Chong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The reconstruction of the acoustic properties of a neonate finless porpoise's head was performed using X-ray computed tomography (CT). The head of the deceased neonate porpoise was also segmented across the body axis and cut into slices. The averaged sound velocity and density were measured, and the Hounsfield units (HU) of the corresponding slices were obtained from computed tomography scanning. A regression analysis was employed to show the linear relationships between the Hounsfield unit and both sound velocity and density of samples. Furthermore, the CT imaging data were used to compare the HU value, sound velocity, density and acoustic characteristic impedance of the main tissues in the porpoise's head. The results showed that the linear relationships between HU and both sound velocity and density were qualitatively consistent with previous studies on Indo-pacific humpback dolphins and Cuvier's beaked whales. However, there was no significant increase of the sound velocity and acoustic impedance from the inner core to the outer layer in this neonate finless porpoise's melon. |
| first_indexed | 2025-11-14T11:06:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-76258 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:06:55Z |
| publishDate | 2015 |
| publisher | PUBLIC LIBRARY SCIENCE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-762582019-09-12T07:05:28Z Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging Wei, Chong Wang, Zhitao Song, Zhongchang Wang, Kexiong Wang, Ding Au, Whitlow WL Zhang, Yu Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics BAIJI LIPOTES-VEXILLIFER BEAM FORMATION SOUND PHOCAENOIDES The reconstruction of the acoustic properties of a neonate finless porpoise's head was performed using X-ray computed tomography (CT). The head of the deceased neonate porpoise was also segmented across the body axis and cut into slices. The averaged sound velocity and density were measured, and the Hounsfield units (HU) of the corresponding slices were obtained from computed tomography scanning. A regression analysis was employed to show the linear relationships between the Hounsfield unit and both sound velocity and density of samples. Furthermore, the CT imaging data were used to compare the HU value, sound velocity, density and acoustic characteristic impedance of the main tissues in the porpoise's head. The results showed that the linear relationships between HU and both sound velocity and density were qualitatively consistent with previous studies on Indo-pacific humpback dolphins and Cuvier's beaked whales. However, there was no significant increase of the sound velocity and acoustic impedance from the inner core to the outer layer in this neonate finless porpoise's melon. 2015 Journal Article http://hdl.handle.net/20.500.11937/76258 10.1371/journal.pone.0121442 English http://creativecommons.org/licenses/by/4.0/ PUBLIC LIBRARY SCIENCE fulltext |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics BAIJI LIPOTES-VEXILLIFER BEAM FORMATION SOUND PHOCAENOIDES Wei, Chong Wang, Zhitao Song, Zhongchang Wang, Kexiong Wang, Ding Au, Whitlow WL Zhang, Yu Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title | Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title_full | Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title_fullStr | Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title_full_unstemmed | Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title_short | Acoustic Property Reconstruction of a Neonate Yangtze Finless Porpoise's (Neophocaena asiaeorientalis) Head Based on CT Imaging |
| title_sort | acoustic property reconstruction of a neonate yangtze finless porpoise's (neophocaena asiaeorientalis) head based on ct imaging |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics BAIJI LIPOTES-VEXILLIFER BEAM FORMATION SOUND PHOCAENOIDES |
| url | http://hdl.handle.net/20.500.11937/76258 |