In this paper, we present a new method for detecting curvilinear structures in a gray-scale image. The concept of skeleton extraction is introduced to detect more general structures such as tapering structures. A skeleton is extracted from the Euclidean distance map that is constructed based on the edge map of an input image. Then, skeletal points are classified into three types (RIDGE, RAVINE ...

This project aims at developing a rich environment that integrates music in order to reinforce learning. Fostering learning through music is based on the visualization of concept maps. This novelty approach relates the rhythm and melody of a song with the dynamic appearance of the concept map; this is carry out by changing some design properties of the elements that composed the concept map. We...

Mind maps have been used for many (including educational) purposes. Several tools are available for visualizing and creating those maps. However, evaluation and feedback is rarely available in such tools and thus, an important aspect of interactive exercises is missing. This paper presents the interactive concept map tool, ICMAP, that is integrated with the web-based learning environment ACTIVE...

There has not been a free and easy-to-use utility to handle both authoring and presentation of large graphs online, especially with mathematical content. On one hand, concept map editors are ideal for authoring graphs, but publishing capabilities may be limited. On the other hand, numerous browsing and layout tools exist for publishing content generated elsewhere. We present a transformation to...

Recently, many authors have considered the problem of simultaneous localisation and mapping (SLAM). The paper addresses a somewhat di erent problem, that of cooperative localisation and mapping (CLAM). Basically, the CLAM approach involves two or more robots cooperating to build a map of the environment. This cooperation is not aimed at simply increasing the speed with which the map is construc...

Four physiology courses participating in a science education program used concept maps for the first time. At the conclusion of the term, students responded to an end-of-term survey about the activity. Following varied results, we sought to identify factors that students indicated are important for the acceptance of the technique. To encourage high student value of concept map exercises, instru...

In this paper, we present an approach to the automatic extraction of conceptual structures from unorganized collections of documents using large scale lexical regularities in text. The technique maps a term to a constellation of other terms that captures the essential meaning of the term in question. The methodology is language independent, it involves an exploration of a document collection in...

This study examined the influence of various conflict management mechanisms embedded into computer-supported collaborative concept mapping systems on the behaviour and learning of elementary students. Four conflict management mechanisms were compared: an assign design, in which the mapping control was designated to a particular group member; a rotate design, in which the mapping control was rot...

Map is not only the result of geospatial environment cognition, but also a tool for cognition. The new concept advocated by Constructivist cognitive theory highly consistent with map service in era Internet plus space-time big data. This paper analyzes geographic information transmission process from perspective constructivism, and constructs model. Based on traditional model, model based const...

The problem of attitude optimal control a spacecraft as solid body with the energy spent on maneuvering taken quadratic functional, and fixed transition time, is investigated. dynamic configuration boundary conditions an angular velocity are arbitrary; function not limited. According to Poinsot concept from theoretical mechanics interpretation motion around point help Pontryagin maximum princip...