Fast extraction and coding algorithm for video region of interest
Kebin Jia · Journal of Circuits and Systems · 2013
How to get the Rate-Distortion Optimization under limited computation complexity and time-delay condition to reduce the time domain,space domain and statistical redundancy is the focus question of video encoding.As the newest video encoding standard,when H.264 achieves the higher coding efficiency,its computational complexity is increased acutely,and it is limited in the real-time application.Based on the conventional video encoding frame,combine the human visual system visual perception characteristics,a fast extraction algorithm for video region of interest based on the encoding information and optimized encoding scheme are proposed in this paper.The simulation results show that with almost the same quality and bit-rate compared with the H.264/AVC,the proposed method can achieve reduction of 52.55% encoding time on average,and can be unified with other H.264 fast coding technology to enhance the encoding speed further,in order to be seasoned with heterogeneous network and multiple terminal environment,and satisfy the demand of multimedia and communication service.