Ioannis K. Brilakis Lucio Soibelman Yoshihisa Shinagawa Construction site image retrieval based on material cluster recognition. 443-452 2006 20 Advanced Engineering Informatics 4 http://dx.doi.org/10.1016/j.aei.2006.03.001 db/journals/aei/aei20.html#BrilakisSS06