Palmprint recognition is a new biometrics system based on physiological characteristics of the palmprint, which includes rich, stable, and unique features such as lines, points, and texture. Texture is one of the most important features extracted from low resolution images. In this paper, a new local descriptor, Local Composition Derivative Pattern (LCDP) is proposed to extract smartly stronger...

In this paper, we present a theory of elastic images deformation and matching. Our theory is based on the physical theory of elastic deformation of a continuum, and is very general: it applies to matching n-dimensional images with n-dimensional templates. We derive the variational formulation of the optimal deformation problem, and the Euler-Lagrange equations to solve it. Also, we address the ...

Pattern matching is an important operation used in many applications such as functional programming, rewriting and rule-based expert systems. By preprocessing the patterns into a DFA-like automaton, we can rapidly select the matching pattern(s) in a single scan of the relevant portions of the input term. This automaton is typically based on left-to-right traversal (of the patterns) or its varia...

The fields of succinct data structures and compressed text indexing have seen quite a bit of progress over the last 15 years. An important achievement, primarily using techniques based on the Burrows-Wheeler Transform (BWT), was obtaining the full functionality of suffix tree in the optimal number of bits. A crucial property that allows the use of BWT for designing compressed indexes is order-p...

Defining functions by pattern matching over the arguments is advantageous for understanding and reasoning, but it tends to expose the implementation of a datatype. Significant effort has been invested in tackling this loss of modularity; however, decoupling patterns from concrete representations while maintaining soundness of reasoning has been a challenge. Inspired by the development of invert...

The goal of this paper is to investigate how such a pattern matching could be performed on models, including the definition of the input language as well as the elaboration of efficient matching algorithms. Design patterns can be considered reusable micro-architectures that contribute to an overall system architecture. Frameworks are also closely related to design patterns. Components offer the...

Since the beginning of software development re-usability has been an important aspect. Applying reusable elements the software does not have to be developed from scratch, proved solutions can shorten the software development life cycle and make applications safer. There are several forms of re-usability like function libraries, class libraries, design patterns, component technologies and enterp...

Since the beginning of software development reusability is an important aspect. Applying reusable elements the software does not have to be developed from scratch, proven solutions can shorten the software development life cycle and make applications safer. There are several forms of reusability like function libraries, class libraries, design patterns, component technologies and enterprise tem...

Graphs are high expressive models and especially suitable for modelling highly complex structures, the number of applications that use them for modelling both their data and the processes that manipulate has grown dramatically in recent years. The use of new conceptual structures in real-world applications requires the development of new systems to store and query such structures in order to al...

Implementation of a rule-based transformation engine consists of several tasks with various abstraction levels. We present a new tool called mtom for the efficient implementation of rule-based transformations. This engine should help to bridge the gap between rewriting implementations and practical applications. It aims at implementing well-identified parts of complex applications where the use...