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A heretofore unsolved problem of great archaeological importance is the automatic assembly of pots made on a wheel from the hundreds (or thousands) of sherds found at an excavation site. An approach is presented to the automatic estimation of mathematical models of such pots from 3D measurements of sherds. The overall approach is formulated and described… (More)

We present a complete system for the purpose of automatically assembling 3D pots given 3D measurements of their fragments commonly called sherds. A Bayesian approach is formulated which, at present, models the data given a set of sherd geometric parameters. Dense sherd measurement data is obtained by scanning the outside surface of each sherd with a laser… (More)

- Andrew R Willis, Karen Newman, David Mumford, Martha Sharp Joukowsky, David Cooper, Benjamin Kimia
- 2004

friends, co-workers, and especially my fiancé Julianna, has made the completion of this work a reality. The pottery assembly system reflects discussions with a diverse group of people from several disciplines including Applied Math : Some programming and significant creative input was provided by Jasper Speicher with regard to the interface design of the… (More)

- David B. Cooper, Andrew R. Willis, Stuart Andrews, Jill Baker, Yan Cao, Dongjin Han +10 others
- ICPR
- 2002

A heretofore unsolved problem of great archaeological importance is the automatic assembly of pots made on a wheel from the hundreds (or thousands) of sherds found at an excavation site. An approach is presented to the automatic estimation of mathematical models of such pots from 3D measurements of sherds. A Bayesian approach is formulated beginning with a… (More)

This paper introduces a new stochastic surface model for deformable 3D surfaces and demonstrates its utility for the purpose of 3D sculpting. This is the problem of simple-to-use and intuitively interactive 3D free-form model building. A 3D surface is a sample of a Markov Random Field (MRF) defined on the vertices of a 3D mesh where MRF sites coincide with… (More)

Uknown to us, an axially-symmetric surface is broken into disjoint pieces along a set of break-curves, i.e., the curves along which the surface locally breaks into two pieces. A subset of the pieces are available and for each of them we obtain noisy 3D measurements of its surface and break-curves. Using the piece measurements and knowledge of which pieces… (More)

—This article describes a multimedia system consisting of two sensors: (1) a laser range scanner (LIDAR) and (2) a conventional digital camera. Our work specifies a mathematical calibration model that allows for this data to be explicitly integrated. Data integration is accomplished by calibrating the system, i.e., estimating for each variable of the model… (More)

This paper revisits the classical problem of detecting interest points, popularly known as " corners, " in 2D images by proposing a technique based on fitting algebraic shape models to contours in the edge image. Our method for corner detection is targeted for use on structural images, i.e., images that contain man-made structures for which corner detection… (More)