6 research outputs found
Bionanocatalizadores de platino y plata soportados sobre sistemas proteinas de capa-s/poliuretano: caracterización y actividad catalítica en la reacción de reducción del p-nitrofenol
El campo de la producción, formación y manipulación de nanopartículas de metales nobles se vio recientemente influenciado por la utilización de plantillas biológicas que permiten transferir a estos sistemas aspectos fundamentales de autoensamblaje
Active Testing Search for Point Cloud Matching
Abstract. We present a general approach for solving the point-cloud matching problem for the case of mildly nonlinear transformations. Our method quickly finds a coarse approximation of the solution by exploring a reduced set of partial matches using an approach to which we refer to as Active Testing Search (ATS). We apply the method to registration of graph structures by branching point matching. It is based solely on the geometric position of the points, no additional information is used nor the knowledge of an initial alignment. In the second stage, we use dynamic programming to refine the solution. We tested our algorithm on angiography, retinal fundus, and neuronal data gathered using electron and light microscopy. We show that our method solves cases not solved by most approaches, and is faster than the remaining ones
Bilateral Functions for Global Motion Modeling
This paper proposes modeling motion in a bilateral domain that augments spatial information with the motion itself. We use the bilateral domain to reformulate a piecewise smooth constraint as continuous global modeling constraint. The resultant model can be robustly computed from highly noisy scattered feature points using a global minimization. We demonstrate how the model can reliably obtain large numbers of good quality correspondences over wide baselines, while keeping outliers to a minimum