Juraj Bienik, Miroslav Uhrina, Peter Kortis

Impact of Constant Rate Factor on Objective Video Quality Assessment

Číslo: 4/2017
Periodikum: Advances in Electrical and Electronic Engineering
DOI: 10.15598/aeee.v15i4.2387

Klíčová slova: Constant rate factor; H.264; H.265; PSNR; SSIM, Faktor konstantní rychlosti; H.264; H.265; PSNR; SSIM

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Anotace: This paper deals with the impact of constant rate factor value on the objective video quality assessment using PSNR and SSIM metrics. Compression efficiency of H.264 and H.265 codecs defined by different Constant rate factor (CRF) values was tested. The assessment was done for eight types of video sequences depending on content for High Definition (HD), Full HD (FHD) and Ultra HD (UHD) resolution. Finally, performance of both mentioned codecs with emphasis on compression ratio and efficiency of coding was compared.