نتایج جستجو برای: proximity
تعداد نتایج: 37302 فیلتر نتایج به سال:
Many real-world networks have a rich collection of objects. The semantics of these objects allows us to capture different classes of proximities, thus enabling an important task of semantic proximity search. As the core of semantic proximity search, we have to measure the proximity on a heterogeneous graph, whose nodes are various types of objects. Most of the existing methods rely on engineeri...
Geometric matching in general is a difficult unsolved problem in computer vision. Fortunately, in many practical applications, some a priori knowledge exists which considerably simplifies the problem. In visual navigation, for example, the motion between successive positions is usually either small or approximately known, but a more precise registration is required for environment modeling. The...
Constructing a (signed) distance field and contouring its zero level set are two important steps in many surface reconstruction methods. While most high-quality distance transforms compute the distance to the surface as well as the closest point on it, the contouring step typically uses only the distance and omits the closest point information. Our novel closest point contouring algorithm (CPC)...
In this project, we study proximity problems in high dimensional space. We give efficient algorithms in the data stream model that compute an approximation of the Minimum Enclosing Ball and diameter of a point set. We also give a simple insertion only data sructure that answers approximate farthest point queries.
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