Read e-book online Curves and Surfaces: 8th International Conference, Paris, PDF

By Jean-Daniel Boissonnat, Albert Cohen, Olivier Gibaru, Christian Gout, Tom Lyche, Marie-Laurence Mazure, Larry L. Schumaker

ISBN-10: 331922803X

ISBN-13: 9783319228037

ISBN-10: 3319228048

ISBN-13: 9783319228044

This quantity constitutes the completely refereed post-conference court cases of the eighth foreign convention on Curves and Surfaces, held in Paris, France, in June 2014. The convention had the final topic: "Representation and Approximation of Curves and Surfaces and Applications". The 32 revised complete papers offered have been rigorously reviewed and chosen from 39 submissions.

The scope of the convention was once on following subject matters: approximation thought, computer-aided geometric layout, special effects and visualization, computational geometry and topology, geometry processing, photo and sign processing, interpolation and smoothing, mesh new release, finite components and splines, scattered info processing and studying concept, sparse and high-dimensional approximation, subdivision, wavelets and multi-resolution method.

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Read or Download Curves and Surfaces: 8th International Conference, Paris, France, June 12-18, 2014, Revised Selected Papers PDF

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Extra resources for Curves and Surfaces: 8th International Conference, Paris, France, June 12-18, 2014, Revised Selected Papers

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Ii) W (S) is non-negative and it is equal to zero if and only if S is a convex inscribed polyhedron. The first property follows immediately from the definition since M¨ obius transformations preserve circles and their intersection angles. Conformal invariance is an important property of the classical Willmore energy [2,15]. The second property is the discrete analogue of the fact that the classic Willmore functional is non-negative and that it is equal to zero if and only if the surface at hand is a (round) sphere.

Math. Comput. Modelling 46, 2–11 (2007) 3. : On the stability of the pph nonlinear multiresolution. Appl. Comput. Harmon. Anal. 18(2), 198–206 (2005) 4. : Exact error bound for the reconstruction processes using interpolating wavelets. Math. Comput. Simul. 79, 3547–3555 (2009) 5. : Point-value WENO multiresolution applications to stable image compression. J. Sci. Comput. 43(2), 158–182 (2010) Non-linear LPR MR with 1 -Minimization Method 31 6. : Learning-based multiresolution schemes with application to compression of images.

Jk , k = 0, . . e. p = 1, 2, ∞ (15) ||f L − fˆL ||p ≤ Cε, where fˆL is the signal obtained after applying the Algorithm 2 and after truncating the details, and C is a constant. , [7,9,12]). In our case, a non-linear prediction operator is designed using 1 -norm minimization. Therefore, a modification of the encoding procedure is necessary to ensure stability. We use the strategy showed in [1,7,10] based on a change of the algorithm. The algorithmic description of the modified encoding is as follows: Algorithm 3 ⎧ for k = L : 1 ⎪ ⎪ ⎪ k ⎪ fjk−1 = f2j , j = 1 : Jk−1 ⎪ ⎪ ⎪ ⎪ ⎪ end ⎪ ⎪ ⎪ ⎪ Set fˆ0 = f 0 ⎪ ⎪ ⎪ ⎪ ⎨ for k = 1 : L fˆ0k = f0L ⎪ ⎪ for j = 1 : Jk−1 ⎪ ⎪ ⎪ ⎪ k k ⎪ dkj = f2j−1 − (Pk−1 f k−1 )2j−1 , dˆkj = |dkj |ε ⎪ ⎪ ⎪ k k k−1 k ˆ ⎪ f2j−1 = (Pk−1 f )2j−1 + dˆkj , fˆ2j = fˆjk−1 ⎪ ⎪ ⎪ ⎪ end ⎪ ⎪ ⎩ end (16) Non-linear LPR MR with 1 -Minimization Method 23 With this modification it is not difficult to prove the following proposition.

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Curves and Surfaces: 8th International Conference, Paris, France, June 12-18, 2014, Revised Selected Papers by Jean-Daniel Boissonnat, Albert Cohen, Olivier Gibaru, Christian Gout, Tom Lyche, Marie-Laurence Mazure, Larry L. Schumaker


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