Low-memory-usage and high-speed image wavelet transform

	Low-memory-usage and high-speed image wavelet transform
	Huang, Ji-Jiang; Cao, Jian-Zhong; Bo, Yi; Chen, Liu
	2014
会议名称	2014 4th IEEE International Conference on Information Science and Technology, ICIST 2014
页码	523-526
会议日期	2014-04-26
会议地点	Shenzhen, China
会议主办者	Chinese Academy of Engineering; IEEE Beijing Section; The Chinese University of Hong Kong
出版者	Institute of Electrical and Electronics Engineers Inc.
产权排序	1
摘要	Discrete wavelet transform (DWT) is being broadly used in processing digital image, but the large requirement of memory and the time delay limit the DWT usage. For instance, when the image is processed in the space, the realtime processing, low power consumption, reduced complexity and low memory consumption are required. Lifting-based DWT is implemented to lessen complexity. And then the coefficients of the lifting filters are turned to be binary and the filters are therefore implemented efficiently without using any multiplier. In this way the frequency of DWT can be improved and the architecture is simplified. When 2-dimensional DWT is carried out, the line-based wavelet transform is able to save memory in a larger sense. The architecture of line-based wavelet can also be executed in a parallel way. Both horizontal transform and vertical transform can be executed at the same time. This paper takes 9/7 wavelet as an example and compares with others its architecture and performance. The advantages of this design include real-time performance improvement, memory reduction and architecture simplification.
作者部门	飞行器光学成像与测量技术研究室
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://ir.opt.ac.cn/handle/181661/22560
专题	飞行器光学成像与测量技术研究室
推荐引用方式 GB/T 7714	Huang, Ji-Jiang,Cao, Jian-Zhong,Bo, Yi,et al. Low-memory-usage and high-speed image wavelet transform[C]:Institute of Electrical and Electronics Engineers Inc.,2014:523-526.

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