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The task of reference-free image quality evaluation is crucial in digital image processing (DIP) and computer vision, especially in resource-constrained environments with a large variety of possible distortions. Accurate evaluation methods are essential for improving the quality of visual content in different applications such as medical imaging and video streaming, developing and evaluating the performance of various DIP algorithms, and for machine learning of video analytics algorithms. In this work, the application of stacking and boosting techniques to ensemble nine popular quality measures, including such as BRISQUE, NIQE and NIMA, is considered. The methodology of ensemble construction and optimization of its settings (hyperparameters) is described. The proposed approach was tested on the KonIQ-10k, LIVE Challenge and TID2013 datasets. The results have shown that the ensemble, in particular gradient boosting in the LightGBM implementation, have improved the correlation of image quality predictions with expert evaluations.
Viktor Bordiuzha
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)
Sergey V. Umnyashkin
National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)

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