JISE


  [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16]


Journal of Information Science and Engineering, Vol. 32 No. 4, pp. 931-945


Fast Mode Decision Algorithm for Scalable Video Coding Based on Probabilistic Models

YU-CHE WEY1, MEI-JUAN CHEN1, CHIA-HUNG YEH2 AND CHIA-YEN CHEN3,* 
1Department of Electrical Engineering 
National Dong Hwa University 
Hualien, 974 Taiwan 
2Department of Electrical Engineering 
National Sun Yat-sen University 
Kaohsiung, 804 Taiwan 
3,*Department of Computer Science and Information Engineering 
National University of Kaohsiung 
Kaohsiung, 811 Taiwan 
E-mail: ayen@nuk.edu.tw

    To reduce the computational complexity of the encoding process in Scalable Video Coding, we utilize the information of motion vector predictor (MVP) and the number of non-zero coefficients (NZC) to propose a fast mode decision algorithm. The probability models of MVP and the number of NZC are built to predict the partition mode in the enhancement layer. In addition, the search range of motion estimation is adaptively adjusted to further reduce computational complexity. Experiment results show that the proposed algorithm can reduce coding time by up to 76% in average and provide higher time saving and better performance than previous work

Keywords: scalable video coding, mode decision, motion estimation, motion vector predictor, enhancement layer, base layer

  Retrieve PDF document (JISE_201604_07.pdf)