Efficient Curation of Invertebrate Image Datasets Using Feature Embeddings and Automatic Size Comparison

• URL: http://arxiv.org/abs/2412.15844v1
• Date: Fri, 20 Dec 2024 12:35:41 GMT
• Title: Efficient Curation of Invertebrate Image Datasets Using Feature Embeddings and Automatic Size Comparison
• Authors: Mikko Impiö, Philipp M. Rehsen, Jenni Raitoharju,
• Abstract summary: We present a method for curating large-scale image datasets of invertebrates. Our approach is based on extracting feature embeddings with pretrained deep neural networks. Also, we show that a simple area-based size comparison approach is able to find a lot of common erroneous images.
• Score: 5.480305055542485
• License:
• Abstract: The amount of image datasets collected for environmental monitoring purposes has increased in the past years as computer vision assisted methods have gained interest. Computer vision applications rely on high-quality datasets, making data curation important. However, data curation is often done ad-hoc and the methods used are rarely published. We present a method for curating large-scale image datasets of invertebrates that contain multiple images of the same taxa and/or specimens and have relatively uniform background in the images. Our approach is based on extracting feature embeddings with pretrained deep neural networks, and using these embeddings to find visually most distinct images by comparing their embeddings to the group prototype embedding. Also, we show that a simple area-based size comparison approach is able to find a lot of common erroneous images, such as images containing detached body parts and misclassified samples. In addition to the method, we propose using novel metrics for evaluating human-in-the-loop outlier detection methods. The implementations of the proposed curation methods, as well as a benchmark dataset containing annotated erroneous images, are publicly available in https://github.com/mikkoim/taxonomist-studio.

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