Correspondence to: Edson Hilgert Rua Francisco Paes, 31, apto. 22 Centro São José dos Campos CEP 12210-100 São Paulo Brazil Phone: +055 012 39227621 E-mail:[email protected] Abstract This study evaluates the marginal adaptation of ceramic copings front of two finish lines and addition of ceramic. Hence, two master steel dies were milled with all-ceramic crowns preparation, one with a round sho...

Background and Aim: One of the problems of all ceramic restorations is their risk of fracture due to occlusal loads. The aim of the present study was to compare the effect of two marginal designs (shoulder and chamfer) on the fracture resistance of IPS-emax all ceramic restorations. Materials and Methods: One extracted maxillary first premolar received chamfer 50' marginal preparation (0.8 m...

Chamfer matching is an effective and widely used technique for detecting objects or parts thereof by their shape. However, a serious limitation is its susceptibility to background clutter. The primary reason for this is that the presence of individual model points in a query image is measured independently. A match with the object model is then represented by the sum of all the individual model...

The theoretical expressions commonly used in the design of interference fits do not take into account huge stress concentrations located at edges hub. This underestimation real state can induce incorrect performance shaft–hub assembly. Among different methods to address this problem is use chamfer hubs, which are for reducing such concentrations. In paper, an analysis, performed via finite elem...

In this work, we analyze three different registration algorithms: Chamfer distance matching, the well-known iterated closest points (ICP) and an optic flow based registration. Their pairwise combination is investigated in the context of silhouette based pose estimation. It turns out that Chamfer matching and ICP used in combination do not only perform fairly well with small offset, but also dea...

Chamfer distances play an important role in the theory of distance transforms. Though the determination of the exact Euclidean distance transform is also a well investigated area, the classical chamfering method based upon ”small” neighborhoods still outperforms it e.g. in terms of computation time. In this paper we determine the best possible maximum relative error of chamfer distances under v...

Within image analysis the distance transform has many applications. The distance transform measures the distance of each object point from the nearest boundary. For ease of computation, a commonly used approximate algorithm is the chamfer distance transform. This paper presents an efficient linear-time algorithm for calculating the true Euclidean distance-squared of each point from the nearest ...

Chamfer distances play an important role in the theory of distance transforms. Though the determination of the exact Euclidean distance transform is also a well investigated area, the classical chamfering method based upon ”small” neighborhoods still outperforms it e.g. in terms of computation time. In this paper we determine the best possible maximum relative error of chamfer distances under v...