西北工业大学学报
西北工業大學學報
서북공업대학학보
JOURNAL OF NORTHWESTERN POLYTECHNICAL UNIVERSITY
2014年
2期
297-302
,共6页
张子龙%薛静%乔鸿海%智永锋
張子龍%薛靜%喬鴻海%智永鋒
장자룡%설정%교홍해%지영봉
车辆视频检索%改进SURF算法%改进FAST特征点%特征点匹配%相似度
車輛視頻檢索%改進SURF算法%改進FAST特徵點%特徵點匹配%相似度
차량시빈검색%개진SURF산법%개진FAST특정점%특정점필배%상사도
针对传统车辆检索方法中存在准确性和区分度较低的问题,提出了一个基于改进SURF ( speeded up robust features)算法的视频车辆检索方法。在车辆视频关键帧提取的基础上,根据改进SURF算法完成车辆图像的特征提取及匹配,其中包含改进FAST ( features from accelerated segment test)特征点检测、SURF特征向量提取以及最近邻查询方法来进行特征点的匹配;通过计算比较待检索车辆图像与数据库车辆图像的相似度,算法完成图像筛选并反馈检索结果。实验结果表明:针对交通监控视频中待检索车辆,该方法能够较为准确地进行检索并反馈结果。
針對傳統車輛檢索方法中存在準確性和區分度較低的問題,提齣瞭一箇基于改進SURF ( speeded up robust features)算法的視頻車輛檢索方法。在車輛視頻關鍵幀提取的基礎上,根據改進SURF算法完成車輛圖像的特徵提取及匹配,其中包含改進FAST ( features from accelerated segment test)特徵點檢測、SURF特徵嚮量提取以及最近鄰查詢方法來進行特徵點的匹配;通過計算比較待檢索車輛圖像與數據庫車輛圖像的相似度,算法完成圖像篩選併反饋檢索結果。實驗結果錶明:針對交通鑑控視頻中待檢索車輛,該方法能夠較為準確地進行檢索併反饋結果。
침대전통차량검색방법중존재준학성화구분도교저적문제,제출료일개기우개진SURF ( speeded up robust features)산법적시빈차량검색방법。재차량시빈관건정제취적기출상,근거개진SURF산법완성차량도상적특정제취급필배,기중포함개진FAST ( features from accelerated segment test)특정점검측、SURF특정향량제취이급최근린사순방법래진행특정점적필배;통과계산비교대검색차량도상여수거고차량도상적상사도,산법완성도상사선병반궤검색결과。실험결과표명:침대교통감공시빈중대검색차량,해방법능구교위준학지진행검색병반궤결과。
To overcome the problem low accuracy and discrimination of traditional vehicle retrieval methods, a new vehicle video retrieval method based on improved SURF algorithm is proposed. On the basis of vehicle video key frame extraction, the improved SURF algorithm is used for extracting and matching of vehicle image features, inclu-ding improved FAST angular point algorithm to extract the image feature points, including SURF algorithm to extract the image feature vector and including nearest neighbor query algorithm to get matching points;through cal-culating and comparing vehicle images to be retrieved and the database of vehicle images in similarity, image filte-ring is completed and the retrieval results are output. The experimental results and their analysis show preliminarily that this method not only can detect the video vehicle, but also can feedback retrieval results fairly accurately.