Adaptive rate control for Motion JPEG2000

doi:10.1049/iet-ipr.2008.0053

	Adaptive rate control for Motion JPEG2000
	Li, L.1,2; Guo, M.1; Wang, Z. S.1
	2009-04-01
发表期刊	IET IMAGE PROCESSING
ISSN	1751-9659
卷号	3 期号:2 页码:75-87
摘要	Rate and quality-constrained rate control is very effective for video applications, since it can maintain constant quality while eliminating local rate spikes. An adaptive rate control method based on image activity measures (ARCIAM) is proposed for Motion JPEG2000. The algorithm can efficiently adjust the compressed bit rates to meet the rate and quality constraints for different types of colour sequences. It predicts the rate-distortion (RD) slope thresholds for frames based on image activity measure (IAM) before entropy coding. Thus, the encoding of unnecessary coding passes can be avoided. Experimental results show that the proposed method can meet the quality and rate constraints, and can achieve quality performance comparable to post-compression rate distortion optimisation at the same bit rate. Under 3 bpp and 40 dB constraints, ARCIAM can reduce the total encoding time and tier-1 encoding time for sequences by more than 20 and 30%, respectively. Moreover, the memory requirement for buffering bit-streams and RD-slope information is reduced by more than 30% on average. Besides, the method can be incorporated into the line-based JPEG2000 encoding system easily, and has been implemented on Kakadu.
DOI	10.1049/iet-ipr.2008.0053
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000265259000004
出版者	INST ENGINEERING TECHNOLOGY-IET
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/11471
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Li, L.
作者单位	1.Chinese Acad Sci, Comp Technol Inst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, L.,Guo, M.,Wang, Z. S.. Adaptive rate control for Motion JPEG2000[J]. IET IMAGE PROCESSING,2009,3(2):75-87.
APA	Li, L.,Guo, M.,&Wang, Z. S..(2009).Adaptive rate control for Motion JPEG2000.IET IMAGE PROCESSING,3(2),75-87.
MLA	Li, L.,et al."Adaptive rate control for Motion JPEG2000".IET IMAGE PROCESSING 3.2(2009):75-87.