计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
9期
186-189
,共4页
镜头分割%镜头边界检测%直方图帧差%自适应阈值
鏡頭分割%鏡頭邊界檢測%直方圖幀差%自適應閾值
경두분할%경두변계검측%직방도정차%자괄응역치
shot segmentation%shot boundary detection%histogram frame difference%adaptive threshold
提出一种改进的基于亮度直方图帧差的自适应镜头分割算法,该方法包括突变镜头的检测过程和渐变镜头的渐变过程,这两个处理过程由相邻两帧的亮度直方图帧差与自适应阈值的比较来自动进行选择,在突变镜头的检测过程中加入隔帧帧差法检测闪光灯,渐变镜头的检测采用基于帧间差方差的方法.实验结果表明,改进算法具有很好的检测效果,且计算复杂度低,易于实现.
提齣一種改進的基于亮度直方圖幀差的自適應鏡頭分割算法,該方法包括突變鏡頭的檢測過程和漸變鏡頭的漸變過程,這兩箇處理過程由相鄰兩幀的亮度直方圖幀差與自適應閾值的比較來自動進行選擇,在突變鏡頭的檢測過程中加入隔幀幀差法檢測閃光燈,漸變鏡頭的檢測採用基于幀間差方差的方法.實驗結果錶明,改進算法具有很好的檢測效果,且計算複雜度低,易于實現.
제출일충개진적기우량도직방도정차적자괄응경두분할산법,해방법포괄돌변경두적검측과정화점변경두적점변과정,저량개처리과정유상린량정적량도직방도정차여자괄응역치적비교래자동진행선택,재돌변경두적검측과정중가입격정정차법검측섬광등,점변경두적검측채용기우정간차방차적방법.실험결과표명,개진산법구유흔호적검측효과,차계산복잡도저,역우실현.
An improved adaptive shot segmentation method based on intensity histogram frame difference is proposed.The approach contains two processing modes.One is dedicated to detection of abrupt shot,and the other for detection of gradual shotThese two modes are selected automatically according to comparing intensity histogram frame difference with adaptive threshoId.The discontinuous frame difference is used to detect flashlight in the process of the detection of abrupt shot.The gradual transition is detected based on the variance of frame difference.Experimental results show that the proposed algorithm performs better results.
