Assessing objective video quality in systems with multi-generation transcoding

Rahul Vanam; Karl O. Lillevold; Yuriy A. Reznik

doi:10.1117/12.2567360

25 August 2020 Assessing objective video quality in systems with multi-generation transcoding

Rahul Vanam, Karl O. Lillevold, Yuriy A. Reznik

Proceedings Volume 11510, Applications of Digital Image Processing XLIII; 1151013 (2020) https://doi.org/10.1117/12.2567360
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

In a multi-generation transcoding system, the source may be an encoded mezzanine video whose objective video quality metrics (e.g., PSNR, SSIM) are unknown. Transcoding process yields objective quality metrics that are relative to the encoded source video, which does not indicate the actual quality of the transcoded video relative to the original uncompressed reference video. In this paper, we present an approach for estimating the objective quality metrics of the encoded mezzanine and demonstrate that it has higher accuracy compared to a well-known scheme. Finally, we derive bounds for the end-to-end objective quality metrics of the transcoded video, and use it for controlling the transcoding process to ensure that the final transcoded video satisfies a quality criterion.

Conference Presentation

Citation Download Citation

Rahul Vanam, Karl O. Lillevold, and Yuriy A. Reznik "Assessing objective video quality in systems with multi-generation transcoding", Proc. SPIE 11510, Applications of Digital Image Processing XLIII, 1151013 (25 August 2020); https://doi.org/10.1117/12.2567360

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