Transfer Learning of Image Classification Networks in Application to Dolphin Whistle Detection

Xi Lu, Lutz Lampe, Burla Nur Korkmaz, Alberto Testolin, Roee Diamant

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Dolphin whistle detection is an important and multipurpose but time-consuming task. The ability to automate and streamline this process can be invaluable for future research in marine studies and other fields that aim to utilise these signals. When dealing with underwater acoustics, a large obstacle to overcome is the abundance of noise and interfering sounds, natural and anthropogenic alike. In this paper, we apply successful image classification networks to two separate datasets containing dolphin whistles with the goal of determining an effective method to conduct automated detection with minimal interference from a manual operator regardless of environment. We further investigate the impacts of shrinking the dataset size and performing parameter freezing on the networks at hand. Networks are assessed by their detection accuracy and achieve performances comparable to those in existing works, the best being 96.7%, thus proving the effectiveness of these pre-trained image classification models.

Original languageEnglish
Title of host publicationOCEANS 2023 - Limerick, OCEANS Limerick 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350332261
StatePublished - 2023
Event2023 OCEANS Limerick, OCEANS Limerick 2023 - Limerick, Ireland
Duration: 5 Jun 20238 Jun 2023

Publication series

NameOCEANS 2023 - Limerick, OCEANS Limerick 2023


Conference2023 OCEANS Limerick, OCEANS Limerick 2023

Bibliographical note

Publisher Copyright:
© 2023 IEEE.


  • dolphin whistle
  • image classification
  • neural networks
  • signal detection

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Oceanography
  • Automotive Engineering
  • Management, Monitoring, Policy and Law
  • Acoustics and Ultrasonics


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