%0 Conference Paper %B Construction Research Congress 2014 %D 2014 %T Comparison of Methods Used for Detecting Unknown Structural Elements in Three-dimensional Point Clouds %A Yeung, J. %A Nahangi, M. %A Shahtaheri, Y. %A Haas, C. %A Walbridge, S. %A West, J.S. %B Construction Research Congress 2014 %C atlanta %G eng