PatternNet: A Benchmark Dataset for Performance Evaluation of Remote Sensing Image Retrieval

Understand

Remote sensing image retrieval(RSIR), which aims to efficiently retrieve data of interest from large collections of remote sensing data, is a fundamental task in remote sensing.

• Over the past several decades, there has been significant effort to extract powerful feature representations for this task since the retrieval performance depends on the representative strength of the features.
• Benchmark datasets are also critical for developing, evaluating, and comparing RSIR approaches.
• Current benchmark datasets are deficient in that 1) they were originally collected for land use/land cover classification and not image retrieval, 2) they are relatively small in terms of the number of classes as well the number of sample images per class, and 3) the retrieval performance has saturated.