Low-complexity block-based motion estimation algorithm using adaptive search range adjustment
- Authors
- Kim, Ilseung; Kim, Joohyeok; Jeon, Gwanggil; Jeong, Jechang
- Issue Date
- Jun-2012
- Publisher
- SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
- Keywords
- motion estimation; bit-wise block matching; search range adjustment
- Citation
- OPTICAL ENGINEERING, v.51, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICAL ENGINEERING
- Volume
- 51
- Number
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165436
- DOI
- 10.1117/1.OE.51.6.067010
- ISSN
- 0091-3286
- Abstract
- We propose an adaptive search range adjustment algorithm that is particularly suitable for low-bit-depth motion estimation approaches. Typical low-bit-depth motion estimation approaches, such as one-bit transform (1BT), two-bit transform (2BT), and truncated gray-coded bit-plane matching (TGCBM), perform a full search with low-bit expression. We propose combining a search-range adjustment, which can be predicted by using motion vector information of the reference frame and the existing bit-wise matching methods, such as 1BT, 2BT, and TGCBM. Combining this proposed algorithm and low-bit expression enhances both motion estimation accuracy and time consumption. Experimental results show that low-bit-depth motion estimation approaches using this proposed algorithm have an outstanding performance compared with those without the proposed algorithm both in motion estimation accuracy and time consumption.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.