• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

• 图形与图像 • 上一篇    下一篇

基于人机交互式图割的目标快速提取

徐秋平   

  1. (武警工程大学信息工程学院,陕西 西安 710086)
  • 收稿日期:2019-04-03 修回日期:2019-08-29 出版日期:2020-02-25 发布日期:2020-02-25
  • 基金资助:

    陕西省自然科学青年基金(2018JQ6224)

Fast object extraction using human-machine
interactive graph cuts

XU Qiu-ping   

  1. (School of Information Engineering,Engineering University of Armed Police Force,Xi’an 710086,China)
  • Received:2019-04-03 Revised:2019-08-29 Online:2020-02-25 Published:2020-02-25

摘要:

根据RGB颜色值表征像素距离,运用图割理论,提出一种人机交互式的目标快速提取方法。在目标外围人工划出封闭折线作为初始活动轮廓线,向内生成单侧变宽域,消除前后重叠,避免重复切割,构造能量函数,生成s-t网络,通过对s-t网络的最小代价切割实现目标提取。后期对局部错误提供方便快捷、安全导向、手自结合的纠错措施。实验表明,所提算法人机交互方便快捷,纠错方式有效完备,目标提取快速准确。

关键词: 目标提取, 图像分割, 图割, 人机交互

Abstract:

By characterizing pixel distance with RGB pixel value, based on graph cuts theory, an human-machine interactive fast object extraction method is proposed. Closed polygons are artificially drawn around the object as the initial contour line, a single-side variable width cyclic neighborhood is generated to avoid ineffective overlapping and repeated cutting. Meantime, an energy function is constructed and a s-t network is generated to achieve the object extraction through the minimus cost cutting of the s-t network. Repeat the above steps until converge to the best boundary of the object. Later, convenient, fast, safety-oriented, automatic and manual error correction measures are provided for local errors. Experiments show that method has the advantages of convenient human-machine interaction, efficient and complete error correction, and fast and accurate object extraction.
 

Key words: object extraction, image segmentation, graph cuts, human-machine interaction