Using Discrete Wavelet Transform to Model Whistle Contours for Dolphin Species Classification

This work proposes the use of features based on the discrete wavelet transform (DWT) for dolphin species classification. These features are compared with other previously used in the literature, and the experiments carried out in a database featuring four different species of cetaceans (three dolphins and a pilot whale) showed that the use of DWT features led to improved classification performance.

[1]  Julie N. Oswald,et al.  Performance of a contour-based classification method for whistles of Mediterranean delphinids , 2010 .

[2]  Marie A. Roch,et al.  Automated classification of dolphin echolocation click types from the Gulf of Mexico , 2017, PLoS Comput. Biol..

[3]  James F. Kaiser,et al.  Some useful properties of Teager's energy operators , 1993, 1993 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[4]  Y. Everingham,et al.  Discriminating between the vocalizations of Indo-Pacific humpback and Australian snubfin dolphins in Queensland, Australia. , 2014, The Journal of the Acoustical Society of America.

[5]  B. Lopez.  Whistle characteristics in free-ranging bottlenose dolphins (Tursiops truncatus) in the Mediterranean Sea: Influence of behaviour , 2011 .

[6]  J. Hildebrand,et al.  Gaussian mixture model classification of odontocetes in the Southern California Bight and the Gulf of California. , 2007, The Journal of the Acoustical Society of America.

[7]  Whitlow W. L. Au,et al.  Hearing by Whales and Dolphins , 2000, Springer Handbook of Auditory Research.

[8]  Pablo Peso Parada,et al.  Using Gaussian mixture models to detect and classify dolphin whistles and pulses. , 2014, The Journal of the Acoustical Society of America.

[9]  Jay Barlow,et al.  ACOUSTIC IDENTIFICATION OF NINE DELPHINID SPECIES IN THE EASTERN TROPICAL PACIFIC OCEAN , 2000 .

[10]  Julie N Oswald,et al.  A tool for real-time acoustic species identification of delphinid whistles. , 2005, The Journal of the Acoustical Society of America.