@ARTICLE{Yamaguchi2008,
  author = {Yamaguchi, Tomoyuki and Nakamura, Shingo and Saegusa, Ryo and Hashimoto, Shuji},
  title = {Image-based crack detection for real concrete surfaces},
  journal = {IEEJ Transactions on Electrical and Electronic Engineering},
  year = {2008},
  volume = {3},
  pages = {128-135},
  number = {1}
}