An average of surfaces as functions in the two-parameter Wiener space for a probabilistic 3D shape model
Bull. Korean Math. Soc.
Published online July 23, 2019
Jeong-Gyoo KIM
Hongik University
Abstract : We define the average of a set of continuous functions of two variables (surfaces) using the structure of the two-parameter Wiener space that constitutes a probability space. The average of a sample set in the two-parameter Wiener space is defined employing the two-parameter Wiener process, which provides the concept of distribution over the two-parameter Wiener space. The average defined in our work, called an average function, also turns out to be a continuous function which is very desirable. It is proved that the average function also lies within the range of the sample set.
The average function can be applied to model 3D shapes which are regarded as their boundaries (surfaces), and serve as the average shape of them.
Keywords : Average of the set of two-variable functions, Two-parameter Wiener space, Two-parameter Wiener process, Average of surfaces
MSC numbers : 28C20, 46G12, 60G15
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