Annotation Cost Efficient Active Learning for Content Based Image Retrieval ...

• Main Authors: Henkel, Julia, Hoxha, Genc, Sumbul, Gencer, Möllenbrok, Lars, Demir, Begüm
• Format: Report
• Language: unknown
• Published: arXiv 2023
• Subjects: Computer Vision and Pattern Recognition cs.CV; FOS Computer and information sciences; DML
• Online Access: https://dx.doi.org/10.48550/arxiv.2306.11605; https://arxiv.org/abs/2306.11605

Deep metric learning (DML) based methods have been found very effective for content-based image retrieval (CBIR) in remote sensing (RS). For accurately learning the model parameters of deep neural networks, most of the DML methods require a high number of annotated training images, which can be costly to gather. To address this problem, in this paper we present an annotation cost efficient active learning (AL) method (denoted as ANNEAL). The proposed method aims to iteratively enrich the training set by annotating the most informative image pairs as similar or dissimilar, while accurately modelling a deep metric space. This is achieved by two consecutive steps. In the first step the pairwise image similarity is modelled based on the available training set. Then, in the second step the most uncertain and diverse (i.e., informative) image pairs are selected to be annotated. Unlike the existing AL methods for CBIR, at each AL iteration of ANNEAL a human expert is asked to annotate the most informative image ... : Accepted at IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2023. Our code is available at https://git.tu-berlin.de/rsim/ANNEAL ...