Akademik Veri Yönetim Sistemi
2023 Innovations in Intelligent Systems and Applications Conference (ASYU), Sivas, Türkiye, 11 - 13 Ekim 2023, ss.1-4
In contemporary video coding methods, an
important step is to find difference between the current data
element with a previously coded-decoded data element. This is
achieved by referencing previously encoded similar blocks to
minimize the data required to represent the new block. The
development of the High Efficiency Video Coding (HEVC)
standard drew upon research conducted on Advanced Video
Coding (AVC), a modern video coding approach. While HEVC
and AVC share similarities, HEVC surpasses AVC in terms of
digital video encoding capabilities. In this study, improvements
were made to the inter-frame structures by utilizing the strategy
of HEVC's multiple reference frames. The proposed approach
utilized Sum of Absolute Differences (SAD) to select up to three
reference blocks. These references are then combined using
weighted average to generate an artificial reference for the block
to be encoded. The method of least squares was employed to
calculate the weights of the selected reference blocks.
Experimental results demonstrated that increasing the number
of reference blocks up to three resulted in an improvement in
the signal-to-noise ratio (PSNR). Consequently, achieving the
same PSNR required less data due to this enhancement.