3D waterflood monitoring at Lost Hills with crosshole EM

Geophysical Monitoring of Leachate Recirculation at Orchard Hills Landfill

Crosshole seismic tomography with cross-firing geometry

We have developed a case study of crosshole seismic tomography with a cross-firing geometry in which seismic sources were placed in two vertical boreholes alternatingly and receiver arrays were placed in another vertical borehole. There are two crosshole seismic data sets in a conventional sense. These two data sets are used jointly in seismic tomography. Because the local sediment is dominated...

Soft-LOST: EM on a Mixture of Oriented Lines

Robust clustering of data into overlapping linear subspaces is a common problem. Here we consider one-dimensional subspaces that cross the origin. This problem arises in blind source separation, where the subspaces correspond directly to columns of a mixing matrix. We present an algorithm that identifies these subspaces using an EM procedure, where the E-step calculates posterior probabilities ...

3d Maze: Getting Lost in Virtual Reality

Virtual Environments (VE) influence design processes increasingly. We investigate the outcome of creation, interpretation and communication of architectural design, by using a three-dimensional (3D) maze together with text-based communication in a series of collaborative design experiments. The goal of our study was to identify how designers use and communicate design ideas by using VEs versa c...

Diachronic 3d Reconstruction for Lost Cultural Heritage

Cultural Heritage artifacts can often be underestimated for their hidden presence in the landscape. Such problem is particularly large in countries like Italy, where the massive amount of “famous” artifacts tends to neglect other presences unless properly exposed, or when the remains are dramatically damaged leaving very few interpretation clues to the visitor. In such cases a virtual presentat...