Video Coding Algorithm Based on High Efficiency Video Coding (HEVC) and Hybrid Transforms

• Chengyou Wang,
• Rongyang Shan,
• ,
• Xiao Zhou,

Vol. 12, No. 9, September 29, 2018
10.3837/tiis.2018.09.018, Download Paper (Free):

• Video coding
• High Efficiency Video Coding (HEVC)
• discrete cosine transform (DCT)
• discrete sine transform (DST)
• all phase biorthogonal transform (APBT)

Abstract

In recent years, due to its high efficiency and better performance, the high efficiency video coding (HEVC) has become the most common compression standard in the field of video coding. In this paper, the framework of HEVC is deeply analyzed, and an improved HEVC video coding algorithm based on all phase biorthogonal transform (APBT) is proposed, where APBT is utilized to replace the discrete cosine transform (DCT) and discrete sine transform (DST) in original HEVC standard. Based on the relationship between APBT and DCT, the integer APBT is deduced. To further improve the coding performance, an optimal HEVC video coding algorithm based on hybrid APBT is proposed. The coding performance of the proposed HEVC coding algorithm is improved without increasing the complexity. Experimental results show that compared with HEVC standard algorithm, the improved HEVC video coding algorithm based on hybrid APBT can improve the coding performance of chrominance components by about 0.3%.

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