AVS-S標準是中國自主制定的面向安防監(jiān)控應用的新一代音視頻編解碼標準。空域可伸縮是滿足AVS-S標準多分辨率可調(diào)需求的有效方法，為了進一步提高編碼效率，分析并改進SVC層間預測算法，面向AVS-S標準提出基本層上采樣精細重預測和層間空時運動向量預測2種算法，實驗結果表明，該算法具有較好性能并易于實現(xiàn)。
關鍵詞：AVS-S標準；視頻監(jiān)控；層間預測

Inter-layer Prediction Algorithm for Spatial Scalability Based on AVS-S

【Abstract】AVS-S standard is a new audio and video standard for video surveillance application. Spatial scalability meets the requirement of changeable resolution bit streams. To improve the coding efficiency, this paper designs tow arithmetics inter-layer prediction for AVS-S based on SVC spatial scalability approach: base layer up-sample re-prediction and inter-layer and inter layer spatio-temporal MV prediction. Simulation result shows that the proposed algorithm is convenient in implementation and excellent in performance.
【Key words】AVS-S standard; video surveillance; inter-layer prediction