An important concept in digital geometry for computer imagery is that of tunnel. In this paper we obtain a formula for the number of tunnels as a function of the number of the object vertices, pixels, holes, connected components, and 2 × 2 grid squares. It can be used to test for tunnel-freedom a

passwords pose even bigger security and usability problems. We exploit the fact that many users now own or have access to a large quantity of digitized personal or personally meaningful content in designing an object-based password scheme called ObPwd. ObPwd enables users to select a password generating

of naming and meaning on digital networks, and existing common naming mechanisms. It then describes the Digital Object Identifier (DOI) system for identifying content objects in the digital environment. DOI names may be assigned to any entity for use on any digital network using the internet protocol. DOI

Abstract. Digital Object Prototypes (DOPs) provide the DL designer with the ability to model diverse types of digital objects in a uniform manner while offering digital object type conformance; objects conform to the designer’s type definitions automatically. In this paper, we outline how DOPs

We present a novel approach to measuring similarity between shapes and exploit it for object recognition. In our framework, the measurement of similarity is preceded by (1) solv- ing for correspondences between points on the two shapes, (2) using the correspondences to estimate an aligning

productions (e.g. the nature of the object that forms the basis of the digital object, namely the analogue photograph, and the nature of the relationship between the photograph and the digital object curated from the photograph, as well as issues like the development of the museums object record database

.e. in paper) is now digitized. The amount of digital objects that libraries and archives maintain constantly increases. It is therefore urgent to ensure that these digital objects will remain functional, usable and intelligible in the future. But what should we preserve and how? To answer this question we

Our goal is to promote the publication and standardization of digital objects stored on the web to enable model and object reuse. A digital object is an electronic representation of a physical object, including models of the object. There remain many challenges and issues regarding

Cattaneo models for chemosensitive movement Numerical solution and pattern formation

Cell balance equation for chemotactic bacteria with a biphasic tumbling frequency