sentence1: for instance , yue et al overlay a design model of a facility with the as-built point cloud to guide the process of identifying which data points belong to specific objects and to detect differences between the as-built and as-designed conditions .
sentence2: for instance , yue et al overlay a design model of a facility with the as-built point cloud to guide the process of identifying which points clouds data belong to specific objects and to detect differences between the as-built and as-designed conditions .