Dynamic Quadruple Optimization Based Transfer Learning for Animal Biometric Identification

With the progress of computer vision and machine learning, the research of object detection and pedestrian recognition has demonstrated significant performance. However, the identification studies in domestic animals, especially in the same species of domestic animals, remains a significant challenge. His study focuses on distinguishing cashmere and dairy goats, which share similar traits. Our contributions are: (1) Proposing a dynamic quadruple optimization algorithm to optimize goat images from local and global dimensions, enhancing network representation with a multi-branch structure; (2) Introducing a novel transfer learning algorithm based on goat granularity to preview dataset knowledge; (3) Validating our approach on our goat dataset and a public bird dataset. We achieved recognition accuracies of 95% for cashmere goats, 94.04% for dairy goats, and 82.48% on the public dataset, demonstrating the effectiveness of our methods for animal biometric identification.