2020
Conference article  Open Access

Nor-Vdpnet: a no-reference high dynamic range quality metric trained on Hdr-Vdp 2

Banterle F., Artusi A., Moreo A., Carrara F.

Deep learning  Image quality assessment  Hdr-Vdp  NoR-VDPNet  No reference 

HDR-VDP 2 has convincingly shown to be a reliable metric for image quality assessment, and it is currently playing a remarkable role in the evaluation of complex image processing algorithms. However, HDR-VDP 2 is known to be computationally expensive (both in terms of time and memory) and is constrained to the availability of a ground-truth image (the so-called reference) against to which the quality of a processed imaged is quantified. These aspects impose severe limitations on the applicability of HDR-VDP 2 to realworld scenarios involving large quantities of data or requiring real-time responses. To address these issues, we propose Deep No-Reference Quality Metric (NoR-VDPNet), a deeplearning approach that learns to predict the global image quality feature (i.e., the mean-opinion-score index Q) that HDRVDP 2 computes. NoR-VDPNet is no-reference (i.e., it operates without a ground truth reference) and its computational cost is substantially lower when compared to HDR-VDP 2 (by more than an order of magnitude). We demonstrate the performance of NoR-VDPNet in a variety of scenarios, including the optimization of parameters of a denoiser and JPEG-XT.

Source: IEEE International Conference on Image Processing (ICIP 2020), pp. 126–130, Abu Dhabi, United Arab Emirates, United Arab Emirates, 25/10/2020-28/10/2020

Publisher: IEEE, New York, USA



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BibTeX entry
@inproceedings{oai:it.cnr:prodotti:438799,
	title = {Nor-Vdpnet: a no-reference high dynamic range quality metric trained on Hdr-Vdp 2},
	author = {Banterle F. and Artusi A. and Moreo A. and Carrara F.},
	publisher = {IEEE, New York, USA},
	doi = {10.1109/icip40778.2020.9191202},
	booktitle = {IEEE International Conference on Image Processing (ICIP 2020), pp. 126–130, Abu Dhabi, United Arab Emirates, United Arab Emirates, 25/10/2020-28/10/2020},
	year = {2020}
}