图学学报
圖學學報
도학학보
Journal of Graphics
2015年
3期
425-431
,共7页
陈志华%朱楠楠%肖小龙%张静%袁玉波
陳誌華%硃楠楠%肖小龍%張靜%袁玉波
진지화%주남남%초소룡%장정%원옥파
图像显著性%显著目标移动%自动抠图
圖像顯著性%顯著目標移動%自動摳圖
도상현저성%현저목표이동%자동구도
image saliency%moving saliency regions%automatic matting
抠图技术是一种常用的提取图像中精确目标区域的方法,在图像编辑中有着重要的应用,现有的大多数抠图技术依赖于人工交互,本文提出一种基于显著目标移动的自动抠图方法。首先对输入图像进行区域分割;然后计算各个区域的显著性值,并建立区域之间的显著性引力模型;在此基础上进行基于显著目标移动的迭代,从而获取图像的显著区域;之后对显著图进行分割并且进行目标区域形态学运算,生成三分图;最后利用基于学习的抠图算法,提取图像目标。实验结果表明,本文方法不需要人工交互和其他的辅助信息,目标抠取效果良好。
摳圖技術是一種常用的提取圖像中精確目標區域的方法,在圖像編輯中有著重要的應用,現有的大多數摳圖技術依賴于人工交互,本文提齣一種基于顯著目標移動的自動摳圖方法。首先對輸入圖像進行區域分割;然後計算各箇區域的顯著性值,併建立區域之間的顯著性引力模型;在此基礎上進行基于顯著目標移動的迭代,從而穫取圖像的顯著區域;之後對顯著圖進行分割併且進行目標區域形態學運算,生成三分圖;最後利用基于學習的摳圖算法,提取圖像目標。實驗結果錶明,本文方法不需要人工交互和其他的輔助信息,目標摳取效果良好。
구도기술시일충상용적제취도상중정학목표구역적방법,재도상편집중유착중요적응용,현유적대다수구도기술의뢰우인공교호,본문제출일충기우현저목표이동적자동구도방법。수선대수입도상진행구역분할;연후계산각개구역적현저성치,병건립구역지간적현저성인력모형;재차기출상진행기우현저목표이동적질대,종이획취도상적현저구역;지후대현저도진행분할병차진행목표구역형태학운산,생성삼분도;최후이용기우학습적구도산법,제취도상목표。실험결과표명,본문방법불수요인공교호화기타적보조신식,목표구취효과량호。
Matting technique is a popular method to extract objects from an image precisely. It takes important advantages in image editing. Most of the existing matting techniques rely on human interaction. In this paper, a novel automatic matting method is proposed and it is based on moving saliency objects. Firstly, the input image is segmented into several regions, its saliency values are calculated, a saliency gravitation model between regions is established, and the moving rules of saliency regions are constructed to obtain an accurate saliency map. Secondly, the saliency map is obtained and morphological operators are employed to correct the object regions. The corresponding trimap is generated automatically. Finally, the object regions are extracted by using learning-based matting algorithm. The experimental results show that the proposed method is more accurate and effective without human interaction or other auxiliary information.