نتایج جستجو برای: chamfer finishing lines

تعداد نتایج: 227221  

Journal: :international journal of advanced design and manufacturing technology 0
payam saraeian mostafa gholami amir masoud behagh omid behagh hamid reza javadinejad mohammad sajjad mahdieh university of tehran (ut)

the vibratory finishing is one of the important mass finishing processes. this can be applied for finishing many metallic and non- metallic components using abrasive materials such as steel, ceramic, natural materials and etc. the vibratory finishing process is used for some purposes such as surfaces polishing, deburring, oxide layer removing and rounding the edges. evaluation of surface roughn...

Journal: :Applied sciences 2023

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...

Journal: :IEEE Transactions on Image Processing 1998

2008
Dong Han Bodo Rosenhahn Joachim Weickert Hans-Peter Seidel

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...

Journal: :CoRR 2012
András Hajdu Lajos Hajdu Robert Tijdeman

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...

2004
Donald G. Bailey

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 ...

Journal: :Acta Cybern. 2012
András Hajdu Lajos Hajdu Robert Tijdeman

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...

Journal: :Pattern Recognition 2007
Céline Fouard Robin Strand Gunilla Borgefors

This paper presents the generalization of weighted distances to modules and their computation through the chamfer algorithm on general point-lattices. A first part is devoted to the definitions and properties (distance, metric, norm) of weighted distances on modules, with a presentation of weight optimization in the general case, to get rotation invariant distances. A general formula for the we...

Banifatemeh, Alireza, Hashemi, Ehsan, Jalalian, E, Shariaty, Mohammad, zarbakhsh, arash,

Abstract Background & Aim: Marginal adaptation of full ceramic zirconia restorations are one of the important factors in their long-term success and one of the factors affecting marginal adaptation and their strength is the finish line design.This study was conducted to compare the effect of finishline design on the adaptation of monolithic zirconia crowns. Material and methods: In this in-vitr...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
محمدحسن سالاری mohammad-hossein salari dental school, islamic azad university, tehran-iranدانشکده دندانپزشکی، دانشگاه آزاد اسلامی، واحد تهران عزت ا... جلالیان ezzat'ollah jalalian dental school, islamic azad university, tehran-iran ([email protected])دانشکده دندانپزشکی، دانشگاه آزاد اسلامی، واحد تهران سارا عسگریان sara asgarian

background and aim: metal ceramic restorations are widely used in crowns. the marginal fitness of these artificial crowns is prone to alteration during the firing cycle of porcelain. gold electroformed metal-ceramic restorations have been introduced as alternatives to conventional metal-ceramic restorations. however little is known about the relationship between procelain firing procedures and ...

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