文章基本信息

标题：Video Compression by Memetic Algorithm
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作者：Pooja Nagpal ; Seema Baghla
期刊名称：International Journal of Advanced Computer Science and Applications(IJACSA)
印刷版ISSN：2158-107X
电子版ISSN：2156-5570
出版年度：2011
卷号：2
期号：6
DOI：10.14569/IJACSA.2011.020621
出版社：Science and Information Society (SAI)
摘要：Memetic Algorithm by hybridization of Standard Particle Swarm Optimization and Global Local Best Particle Swarm Optimization is proposed in this paper. This technique is used to reduce number of computations of video compression by maintaining same or better quality of video. In the proposed technique, the position equation of Standard Particle Swarm Optimization is modified and used as step size equation to find best matching block in current frame. To achieve adaptive step size, time varying inertia weight is used instead of constant inertia weight for getting true motion vector dynamically. The time varying inertia weight is based up on previous motion vectors. The step size equation is used to predict best matching macro block in the reference frame with respect to macro block in the current frame for which motion vector is found. The result of proposed technique is compared with existing block matching algorithms. The performance of Memetic Algorithm is good as compared to existing algorithms in terms number of computations and accuracy.
关键词：thesai; IJACSA; thesai.org; journal; IJACSA papers; Memetic Algorithm (MA); Standard Particle Swarm Optimization (PSO); Global Local Best Particle Swarm Optimization (GLBest PSO); Video Compression; Motion Vectors; Number of Computations; Peak Signal to Noise ratio (PSNR).