Chinese white dolphin dorsal fin identification method based on convolutional neural network

Abstract

The invention discloses a Chinese white dolphin dorsal fin identification method based on a convolutional neural network, and the method comprises the steps: constructing a Chinese white dolphin dorsal fin image library with a position box and an identification tag, and dividing the Chinese white dolphin dorsal fin image library into a training sample and a test sample; training a convolutional neural network for positioning a dorsal fin region; respectively training three convolutional neural networks for identifying the left and right sides of the dorsal fin, the image quality of the dorsalfin and an individual to which the dorsal fin belongs; positioning a dorsal fin region of the image in the test sample through a convolutional neural network for positioning; and identifying the dorsal fin area through the three convolutional neural networks for identification, and outputting identification results of the left and right sides of the dorsal fin, the dorsal fin image quality and theindividual to which the dorsal fin belongs. According to the method, the feature learning capability of the convolutional neural network is fully utilized, automatic identification of the dorsal finof the Chinese white dolphin can be efficiently and accurately realized, and marine biologists are helped to analyze the individual habits and population characteristics of the Chinese white dolphin.

Description

technical field [0001] The present invention relates to the technical field of image processing, and more specifically, relates to a method for identifying the dorsal fin of the Chinese white dolphin based on a convolutional neural network. Background technique [0002] The Chinese White Dolphin is a coastal species that inhabits eastern Southeast Asia. In recent years, due to factors such as coastal development and increased traffic, as well as overfishing and seawater pollution, the number of Chinese white dolphins has declined sharply. At present, the Chinese white dolphin has become an endangered species and needs human protection. Usually in the protection process, in order to track and observe the growth process of Chinese white dolphins, it is often necessary to identify and statistically analyze Chinese white dolphins that appear in coastal areas. [0003] The traditional method of identifying Chinese white dolphins is to implant tags on their bodies, but this meth...

AI Technical Summary

Problems solved by technology

Using these methods to identify the dorsal fin of the Chinese white dolphin has the following disadvantages: the individual characteristic information contained in the spots of the dorsal fin is ignored, and the accuracy rate is low when identifying a population with a large number of individuals

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