Dahua Technology’s AI-based Remote Sensing Image Analysis Technology has obtained first place in the comprehensive precision ranking of the Onera Satellite Change Detection (OSCD) Evaluation released by Geoscience and Remote Sensing Society (GRSS).
This achievement fully demonstrates Dahua Technology’s continuous development and innovation capabilities in the field of remote sensing image change detection.
OSCD (Onera Satellite Change Detection) is jointly issued and maintained by the International Institute of Electronics and Electrical Engineers (IEEE), and the Image Analysis and Data Fusion Technical Committee (IADF TC). It is an international authoritative evaluation platform for remote sensing image change detection algorithm. This evaluation involves complex and variable global surface coverage data, which is extremely challenging and attracts scholars and well-known academic institutions across the globe to participate.
In view of the large size of remote sensing images and the imbalance in the types of changing areas, Dahua Technology has proposed a method of image stretching and normalization preprocessing based on multi-channel fusion in data processing, which significantly solves issues including obvious surface differences. In terms of model structure, the innovative use of the Tversky loss function optimizes the problem of category imbalance.
At the same time, Dahua Technology innovatively builds multi-modality and greatly improves the precision and recall of its algorithm. The Dahua Remote Sensing Image Analysis Technology has set another evaluation record in the remote sensing image change detection data set, achieving first place in the overall ranking.
