New Fast Full Search Algorithms Using DCT Coefficients
- Authors
- Lee, Hyuk; Jin, Soonjong; Jeong, Jechang
- Issue Date
- May-2009
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Fast motion estimation; full search; DCT; video coding
- Citation
- IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.55, no.2, pp.845 - 849
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
- Volume
- 55
- Number
- 2
- Start Page
- 845
- End Page
- 849
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176852
- DOI
- 10.1109/TCE.2009.5174464
- ISSN
- 0098-3063
- Abstract
- This paper presents new fast full search motion estimation (ME) algorithms using discrete cosine transform (DCT) coefficients as a gradient magnitude. The proposed algorithms use intra DCT coefficients to arrange the matching scan order. The proposed algorithm 1 uses some of DCT coefficients based on the relationship, and between gradient magnitude and DCT coefficient the proposed algorithm 2 uses all of DCT alternating current (AC) coefficients in order to predict the fluctuation of a block. The proposed algorithms significantly reduce the computational complexity of the conventional algorithm while maintaining the visual quality of video.
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