AVS-S標準是中國自主制定的面向安防監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。
關鍵詞：AVS-S標準；視頻監控；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