The standard Clough-Tocher split-domain scheme constructs a surface element with quadratic precision. In this paper, I will look at methods for improving the degrees of freedom in Clough-Tocher schemes. In particular , I will discuss modiications to the cross-boundary construction that improve the interpolant from quadratic precision to cubic precision. In the general scattered data interpolati...

We describe an effective and novel approach to infer sign and direction of principal curvatures at each input site from noisy 3D data. Unlike most previous approaches, no local surface fitting, partial derivative computation of any kind, nor oriented normal vector recovery is performed in our method. These approaches are noise-sensitive since accurate, local, partial derivative information is o...

The COVRATIO statistic has been used to identify the presence of outlier in data, which is based on deletion approach, where determinant covariance matrix for full dataset excludes i-th row. This study proposes a novel discrimination method multivariate normal (MVN) distribution using idea statistic, denoted as . linear function (LDF) MVN will be compared statistic. Simulation results showed th...