计算机应用
計算機應用
계산궤응용
COMPUTER APPLICATION
2010年
3期
625-627
,共3页
帧间模式选择%相关性%复杂度可伸缩%预测模式%伸缩因子
幀間模式選擇%相關性%複雜度可伸縮%預測模式%伸縮因子
정간모식선택%상관성%복잡도가신축%예측모식%신축인자
inter mode decision%correlation%complexity scalability%prediction mode%scalability factor
针对H.264/AVC中复杂度无法满足终端设备异构性的问题,提出一种新的帧间模式选择算法.利用相邻宏块的空间相关性和时间相关性,进行模式预测,并通过复杂度伸缩因子,控制参与预测的模式的数目,使复杂度在20%到100%之间灵活变化.实验结果表明,该算法能在视频质量和复杂度之间形成良好的折中,适应从高端设备到低端设备的计算能力差异.
針對H.264/AVC中複雜度無法滿足終耑設備異構性的問題,提齣一種新的幀間模式選擇算法.利用相鄰宏塊的空間相關性和時間相關性,進行模式預測,併通過複雜度伸縮因子,控製參與預測的模式的數目,使複雜度在20%到100%之間靈活變化.實驗結果錶明,該算法能在視頻質量和複雜度之間形成良好的摺中,適應從高耑設備到低耑設備的計算能力差異.
침대H.264/AVC중복잡도무법만족종단설비이구성적문제,제출일충신적정간모식선택산법.이용상린굉괴적공간상관성화시간상관성,진행모식예측,병통과복잡도신축인자,공제삼여예측적모식적수목,사복잡도재20%도100%지간령활변화.실험결과표명,해산법능재시빈질량화복잡도지간형성량호적절중,괄응종고단설비도저단설비적계산능력차이.
In order to resolve the problem that computation complexity of H.264/AVC can not satisfy the diversity of computing resources of terminal equipment, the authors proposed a novel algorithm of inter mode decision. The algorithm utilized the spatial correlation and time correlation of adjacent macroblocks to predict the modes of current macroblocks, and controlled the number of modes involved in the prediction by scalability factor; hence the complexity can change flexibly from 20% to 100%. The experimental results show that the proposed method can achieve the tradeoff between the accuracy of motion estimation and its computational complexity, fit for the different computing power of different equipments.
