| Citation: | PAN L P,XIE F Y,ZHAO W W,et al. Weak supervision based blind remote sensing image mosaic quality assessment[J]. Journal of Beijing University of Aeronautics and Astronautics,2023,49(9):2518-2526 (in Chinese) doi: 10.13700/j.bh.1001-5965.2021.0694 | 
A remote sensing image mosaic is an important research content of remote sensing image interpretation. However, affected by the imaging time, angle, and object texture, mosaic images often suffer inconsistent colors and structure dislocation. Aiming at the above quality problems, a double-branch network is designed to perform the blind assessment of the remote sensing image mosaic quality. The branch network are used to assess the color difference and structural dislocation respectively. Finally, the output of the branch networks is integrated to realize the comprehensive assessment. A weakly supervised learning technique based on two-stage training is proposed to lower the quantity of images in network training because it requires a lot of labor and material resources to determine the true score of the image quality. Firstly, to gain the previous knowledge associated with quality assessment, the network is initially pre-trained on the simulated mosaic dataset, which uses color change and structural dislocation as the objective quality score. Secondly, fine-tuning is performed on the dataset with subjective scores. Secondly, fine-tuning is performed on the dataset with subjective score. The experiment results on the established simulation dataset and authentic dataset show that the proposed method can effectively assess the quality of remote sensing image mosaic and outperforms the comparison algorithms.
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