Energy Interpolated Template Coding for Video Compression in Traffic Surveillance Application

摘要

In video coding, exploitation of temporal correlation between frames is an important step for reduction of redundant data in successive video frames. However, dynamic nature of video content introduces difficulty in finding temporal correlation. In this paper we propose a novel template coding approach to compress the video data for traffic surveillance which addresses above said difficulty. In this work, the conventional approach of the template coding, wherein two successive frames are considered, is improved by a 'dynamic model' of the template. The dynamism of template selection is achieved through energy interpolation of successive frame data over some time period, rather than only two successive frame data. Acoherent histogram model is developed to build accurate template to achieve improvement in compression. The proposed efficient template matching approach predicts exact template thereby minimizing the processing overheads and reduction in processing time. The obtained simulation result unveils that, the proposed approach results in accurate template localization, thereby improving the accuracy in coding and the coding speed in comparison to conventional template based compression approaches.