曲阜师范大学学报(自然科学版)
麯阜師範大學學報(自然科學版)
곡부사범대학학보(자연과학판)
JOURNAL OF QUFU NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)
2015年
1期
69-71
,共3页
镜头边界检测%SIFT算法%关键点匹配%突变镜头%渐变镜头
鏡頭邊界檢測%SIFT算法%關鍵點匹配%突變鏡頭%漸變鏡頭
경두변계검측%SIFT산법%관건점필배%돌변경두%점변경두
shot boundary detection%SIFT algorithm%keyword matching%abrupt change shot%gradu-al change shot
镜头边界检测就是找到每个镜头的起始和结束帧,它是视频分析的基础,也是基于内容的视频检索的第一步。因此,其效率和准确度直接关系到整个视频检索的成败。然而,由于摄像头和物体运动的影响,现有的镜头边界检测的准确率较低。为了解决这个问题,论文提出了基于关键点匹配的镜头边界检测方法。该方法通过比较连续两帧关键点匹配的数量,确定镜头边界,并且具有较高的准确率。
鏡頭邊界檢測就是找到每箇鏡頭的起始和結束幀,它是視頻分析的基礎,也是基于內容的視頻檢索的第一步。因此,其效率和準確度直接關繫到整箇視頻檢索的成敗。然而,由于攝像頭和物體運動的影響,現有的鏡頭邊界檢測的準確率較低。為瞭解決這箇問題,論文提齣瞭基于關鍵點匹配的鏡頭邊界檢測方法。該方法通過比較連續兩幀關鍵點匹配的數量,確定鏡頭邊界,併且具有較高的準確率。
경두변계검측취시조도매개경두적기시화결속정,타시시빈분석적기출,야시기우내용적시빈검색적제일보。인차,기효솔화준학도직접관계도정개시빈검색적성패。연이,유우섭상두화물체운동적영향,현유적경두변계검측적준학솔교저。위료해결저개문제,논문제출료기우관건점필배적경두변계검측방법。해방법통과비교련속량정관건점필배적수량,학정경두변계,병차구유교고적준학솔。
Shot boundary detection is to find the beginning and the end of each shot,it is the foundation of any video analysis,and it is the first step for content based video retrieval,so its efficiency and accuracy are directly related to the success of the whole video retrieval.However,as the influence of the camera and obj ect motion,the accuracy of the existing shot boundary detection is still low.To solve the problem,this paper proposed the shot boundary detection method based on keyword matching.The method determines the shot boundary by comparing the number of keywords matching between two consecutive frames, which has higher accuracy.