Multi-regions in the Scalable Video Coding Method
首发时间:2012-01-09
Abstract:Human visual system function is non-uniform to visual perception. Normally, People tend to focus on one or more specific moving objects while watching video. In addition, video transmission is flawed due to heterogeneous networks and limited bandwidth. Therefore, how to transmit the content of interests more efficiently becomes a growing concerning topic. This paper puts forward to getting multi-regions using particle tracking filters, with each region implementing motion estimation and allocating bit-rate in accordance with 3D-wavelet scalable video coding model. Experiment and comparison results are encouraging and show that the performance of our approach is effective, in particularly the situations of lower bit rate. The approach is particularly suitable for mobile video communication, and video surveillance on intelligent vehicle.
keywords: Multi-regions, Partical Filter, Local Motion Estimation, Scalable Video Coding
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多区域可伸缩视频编码方法
摘要:人类视觉系统对视觉的感知具有非均匀性,特别是在运动视频中人们关注的往往仅是个别的运动目标,而非全部场景。同时,视频传输中存在着网络异构和传输带宽有限等问题,如何在有限的带宽中尽可能多地传输人们感兴趣的视频内容,是近年来视频编解码领域中的一个热点问题。本文给出了一种利用粒子滤波器跟踪算法生成多运动目标区域,再对这些区域进行运动估计和小波分解重构,并根据带宽按需分配各感兴趣区域传输码率的三维小波可伸缩视频编解码模型。该方法在实现移动视频传输、监控视频以及交通视频的可伸缩编解码,特别是低码率情况下具有较好的理论借鉴意义与实际应用价值。
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