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PRE-TRAINING WITH FRACTAL IMAGES FACILITATES LEARNED IMAGE QUALITY ESTIMATION

Malte Silbernagel, Thomas Wiegand, Peter Eisert, Sebastian Bosse

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Lecture 10 Oct 2023

Today’s image quality estimation is widely dominated by learning-based approaches. The availability of annotated, i.e. rated, images is often a bottleneck in training data- driven visual quality models and hinders their generalization power. This paper proposed a novel pre-training scheme for learning-based quality estimation that does not rely on human-annotated datasets, but leverages synthetic fractal images. These images can be synthesized inexhaustibly and are inherently labeled during generation. We evaluate the pre-training strategy on a popular neural network-based quality model and show that the training effort can be reduced significantly, resulting in better final accuracy and faster convergence speed.

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