中国光学
中國光學
중국광학
Chinese Journal of Optics
2015年
5期
768-774
,共7页
视觉显著性%自顶向下%目标区域检测%显著图
視覺顯著性%自頂嚮下%目標區域檢測%顯著圖
시각현저성%자정향하%목표구역검측%현저도
visual saliency%top-down%target area detection%saliency map
针对传统视觉显著性模型在自顶向下的任务指导和动态信息处理方面的不足,设计并实现了融入运动特征的视觉显著性模型。利用该模型提取了图像的静态特征和动态特征,静态特征的提取在图像的亮度、颜色和方向通道进行,运动特征的提取采用基于多尺度差分的特征提取方法实现,然后各通道分别通过滤波、差分得到显著图,在生成全局显著图时,提出多通道参数估计方法,计算图像感兴趣区域与眼动感兴趣区域的相似度,从而可在图像上准确定位目标位置。针对20组视频图像序列(每组50帧)进行了实验,结果表明:本文算法提取注意焦点即目标区域的平均相似度为0.87,使用本文算法能够根据不同任务情境,选择各特征通道的权重参数,从而可有效提高目标搜索的效率。
針對傳統視覺顯著性模型在自頂嚮下的任務指導和動態信息處理方麵的不足,設計併實現瞭融入運動特徵的視覺顯著性模型。利用該模型提取瞭圖像的靜態特徵和動態特徵,靜態特徵的提取在圖像的亮度、顏色和方嚮通道進行,運動特徵的提取採用基于多呎度差分的特徵提取方法實現,然後各通道分彆通過濾波、差分得到顯著圖,在生成全跼顯著圖時,提齣多通道參數估計方法,計算圖像感興趣區域與眼動感興趣區域的相似度,從而可在圖像上準確定位目標位置。針對20組視頻圖像序列(每組50幀)進行瞭實驗,結果錶明:本文算法提取註意焦點即目標區域的平均相似度為0.87,使用本文算法能夠根據不同任務情境,選擇各特徵通道的權重參數,從而可有效提高目標搜索的效率。
침대전통시각현저성모형재자정향하적임무지도화동태신식처리방면적불족,설계병실현료융입운동특정적시각현저성모형。이용해모형제취료도상적정태특정화동태특정,정태특정적제취재도상적량도、안색화방향통도진행,운동특정적제취채용기우다척도차분적특정제취방법실현,연후각통도분별통과려파、차분득도현저도,재생성전국현저도시,제출다통도삼수고계방법,계산도상감흥취구역여안동감흥취구역적상사도,종이가재도상상준학정위목표위치。침대20조시빈도상서렬(매조50정)진행료실험,결과표명:본문산법제취주의초점즉목표구역적평균상사도위0.87,사용본문산법능구근거불동임무정경,선택각특정통도적권중삼수,종이가유효제고목표수색적효솔。
For the lack of top-down task guidance and dynamic information processing of traditional visual sali-ency model, a visual saliency model fused with the motion features is designed and implemented.The static features and motion features are extracted based on the proposed model.The static features are extracted from the intensity, color and orientation channel of the current frame image.The motion features are extracted based on the multi-scales difference method.The saliency maps of four channels can be obtained by filtering and difference.Based on the proposed model a method of parameter estimation for multi channel is proposed to calculate the similarity between the region of interesting of current image and the region of interesting of eyes movement, then guide to generate the global saliency map, which can provide a calculation mechanism for ac-curate location on images.20 groups of video image sequences(50 images per group) are selected for the ex-periment.Experimental results show that the average similarity of focus of attention is 0.87.The proposed method can more efficiently and accurately locate the region where the searched target may be present and can improve the efficiency of target searching.