Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)
- 2019.11a
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- Pages.249-251
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- 2019
A DST-3 BASED TRANSFORM KERNEL DERIVATION METHOD FOR DST-4 and DCT-4 IN VIDEO CODING
DST-4 와 DCT-4 를 위한 DST-3 기반 비디오 압축 변환 커널 유도 방법
- Shrestha, Sandeep (Chosun University) ;
- lee, Bumshik (Chosun University)
- Published : 2019.11.29
Abstract
In the ongoing standardization of Versatile Video Coding (VVC), DCT-2, DST-7 and DCT-8 are designated as the vital primary transform kernels. Due to the effectiveness of DST-4 and DCT-4 in smaller resolution sequences, DST-4 and DCT-4 transform kernel can also be used as the replacement of the DST-7 and DCT-8 transform kernel respectively. While storing all of those transform kernels, ROM memory storage is considered as the major issue. So, to deal with this scenario, a unified DST-3 based transform kernel derivation method is proposed in this paper. The transform kernels used in this paper is DCT-2, DST-4 and DCT-4 transform kernels. The proposed ROM memory required to store the matrix elements is 1368 bytes each of 8-bit precision.
Keywords