Complete digital recording of Cultural Heritage is a multidimensional process. It depends highly on the nature of the subject of recording as well as the purpose of its recording. The whole process involves the three-dimensional digitization, digital data processing and storage, archival and management, representation and reproduction. In this paper we briefly review methods for three-dimensional digitization that are applicable to cultural heritage recording.

No abstract

785coefficients -ym (location of the borders between the regions). Thus, the behavior of an n-dimensional system having a piecewise-linear continuous vector field with o-regions and parallel boundaries (4) is uniquely determined by the n eigenvalues of A, n eigenvalues of A + deT, n . a eigenvalues of A + bmey for m = 1, . . . , a, and a locations of the borders between the regions which makes a total of 2 . n + n . a + a parameters. IV. CONCLUSIONWe have shown that vector fields in Lur'e form having identical eigenvalue patterns and belonging to the same family ( ( n , f) are linearly conjugate. Hence, their attractor dimensions, Lyapunov exponents and entropies are identical. Furthermore, we have suggested the construction of a canonical system (10) that retains all features of its family of vector fields in Lur'e form and has reduced number of parameters by n2 -n compared to other members of the same family that have the same eigenvalue pattern. ACKNOWLEDGMENTThe authors wish to thank the anonymous reviewers for their valuable comments and helpful suggestions on earlier version of this paper that have improved the quality and clarity of the presentation.Abstract-In this brief, a new method is proposed for the design of digital integrators. The new method is based upon the formulation of an appropriate linear programming problem which assures a satisfactory minimax approximation error for the magnitude response in a predefined frequency range. In comparison with existing methods the new design approach constructs a novel class of digital integrators by optimal determining more than one independent coefficients. Their capability to approximate in the minimax sense the ideal integrator with a good accuracy is shown. Well-known integrators can be obtained as special cases of the proposed methodology. Appropriate constraints can be introduced to accommodate signals with low frequencies.

No abstract

No abstract