文章基本信息

标题：An Enhanced Hybrid Content-Based Video Coding Scheme for Low Bit-Rate Applications
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作者：Wendan Xu ; Xinquan Lai ; Donglai Xu 等
期刊名称：International Journal of Signal Processing, Image Processing and Pattern Recognition
印刷版ISSN：2005-4254
出版年度：2014
卷号：7
期号：1
页码：45-52
DOI：10.14257/ijsip.2014.7.1.05
出版社：SERSC
摘要：This paper presents a hybrid content-based video coding scheme that encodes arbitrary shaped objects instead of blocks of images. The scheme achieves efficient compression for low bit-rate applications by separating moving objects from stationary background and transmitting the shape, motion and residuals for each segmented object. Furthermore, a new content-based object segmentation algorithm is proposed in the scheme, which does not assume any prior modeling of the objects being segmented. The algorithm is based on a threshold function that calculates block histograms and takes image noise into account. The experimental results show that the scheme proposed outperforms the classical object-based coding methods in terms of PSNR or the average number of bits required for coding a single frame.
关键词：Video Compression; Object Segmentation; Motion Estimation; Motion ; Compensation