Towards a quality metric for dense light fields, CVPR 2017

Abstract

Light fields become a popular representation of threedimensional scenes, and there is interest in their processing, resampling, and compression. As those operations often result in loss of quality, there is a need to quantify it. In this work, we collect a new dataset of dense reference and distorted light fields as well as the corresponding quality scores which are scaled in perceptual units. The scores were acquired in a subjective experiment using an interactive light field viewing setup. The dataset contains typical artifacts that occur in light field processing chain due to light field reconstruction, multi-view compression, and limitations of automultiscopic displays. We test a number of existing objective quality metrics to determine how well they can predict the quality of light fields. We find that the existing image quality metrics provide good measures of light field quality, but require dense reference light fields for optimal performance. For more complex tasks of comparing two distorted light fields, their performance drops significantly, which reveals the need for new, light field specific metrics.

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Vamsi Kiran Adhikarla, Marek Vinkler, Denis Sumin, Rafał Mantuik, Karol Myszkowski, Hans-Peter Seidel, Piotr Didyk
Towards a quality metric for dense light fields
Proceedings of the IEEE Conf. on Computer Vision and Pattern Recognition (CVPR)

@inproceedings{Vamsi2017,
 author = {Vamsi Kiran Adhikarla and Marek Vinkler and Denis Sumin and Rafał Mantiuk and Karol Myszkowski and Hans-Peter Seidel and Piotr Didyk},
 booktitle = {Proceedings of the {IEEE} Conf. on Computer Vision and Pattern Recognition ({CVPR})},
 title = {Towards a Quality Metric for Dense Light Fields},
 year = {2017}
}

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