Claudia Marcela Justel

Learn More
This work presents the design and the features of a flexible realtime 3D graphics engine aimed at the development of multimedia applications and collabora-tive virtual environments. The engine, called EnCIMA (Engine for Collaborative and Immersive Multimedia Applications), enables a fast development process of applications by providing a high level(More)
This work presents the features of a flexible realtime 3D graphics engine aimed at the development of multimedia applications and collaborative virtual environments. The engine, called EnCIMA (Engine for Collaborative and Im-mersive Multimedia Applications), enables a quick development process of applications by providing a high level interface , which has(More)
This paper describes loop closures detection, a significant problem in mobile robotics, using analysis of similarity between images in a low-dimensional mapping. We represent a set of images as a graph in high-dimensional space, where each node is represented by a dominant eigenvector of the correspondent image. To this graph, we apply <i>Diffusion Maps</i>(More)
Suppose that G is an undirected graph, and that H is a spanning subgraph of G c whose edges induce a subgraph on p vertices. We consider the expression α(G∪H)− α(G), where α denotes the algebraic connectivity. Specifically, we provide upper and lower bounds on α(G ∪ H) − α(G) in terms of p, and characterise the corresponding equality cases. We also discuss(More)
  • 1