Video coding is a well-known procedure used for transporting and saving videos. The key role in video coding is performed by video codecs, which compress videos in a number of ways.
This diploma thesis is focused on the comparison between two different coding standards, H.264/MPEG4-AVC and HEVC. H.264/MPEG4-AVC is the most widespread video coding standard currently adopted by the industry. Recently, a new standard was released, HEVC, which is believed to improve the coding efficiency by 50 % compared to H.264/MPEG4-AVC.
The goal is to analyse the new HEVC coding standard and compare it to the currently used H.264/MPEG4-AVC standard. Two objective video quality metrics were used in the process, PSNR and SSIM. PSNR focuses on the comparison between single pixels, with no regard to the neighbouring pixels, whereas SSIM enlarges the area of comparison by taking into account a bigger area of pixels and gives results that are well correlated to the human visual system and its perception of quality.
The results show that the new HEVC standard meets the expectations for Full HD videos, where compared to H.264/MPEG4-AVC half of the bandwidth is used for the same video quality.