@article{fdi:010057141,
  title = {{B}ags-of-{F}eatures for fish school cluster characterization in pelagic ecosystems : application to the discrimination of juvenile and adult anchovy ({E}ngraulis ringens) clusters off {P}eru},
  author = {{F}ablet, {R}onan and {G}ay, {P}. and {P}eraltilla, {S}. and {P}ena, {C}. and {C}astillo, {R}. and {B}ertrand, {A}rnaud},
  editor = {},
  language = {{ENG}},
  abstract = {{W}hereas fisheries acoustics data processing mainly focused on the detection, characterization, and recognition of individual fish schools, here we addressed the characterization and discrimination of fish school clusters. {T}he proposed scheme relied on the application of the {B}ags-of-{F}eatures ({B}o{F}) approach to acoustic echograms. {T}his approach is widely exploited for pattern recognition issues and naturally applies here, considering fish schools as the relevant elementary objects. {I}t relies on the extraction and categorization of fish schools in fisheries acoustic data. {E}chogram descriptors were computed per unit echogram length as the numbers of schools in different school categories. {W}e applied this approach to the discrimination of juvenile and adult anchovy ({E}ngraulis ringens) off {P}eru. {W}hereas the discrimination of individual schools is low (below 70%), the proposed {B}o{F} scheme achieved between 89% and 92% of correct classification of juvenile and adult echograms for different survey data sets and significantly outperformed classical school-based echogram characteristics (about 10% of improvement of the correct classification rate). {W}e further illustrate the potential of the proposed scheme for the estimation of the spatial distribution of juvenile and adult anchovy populations.},
  keywords = {},
  booktitle = {},
  journal = {{C}anadian {J}ournal of {F}isheries and {A}quatic {S}ciences},
  volume = {69},
  numero = {8},
  pages = {1329--1339},
  ISSN = {0706-652{X}},
  year = {2012},
  DOI = {10.1139/f2012-064},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057141},
}