By Marc Alexa, Andrew Nealen (auth.), José Braz, Alpesh Ranchordas, Helder Araújo, Joaquim Jorge (eds.)

This ebook contains chosen papers from the 1st foreign meetings on machine imaginative and prescient thought and purposes (VISAPP), and special effects idea and functions (GRAPP), together held in Setubal, Portugal, on February 25–28, 2006. We acquired 314 paper submissions for either meetings, fairly a excessive quantity for a primary venue. We had contributions from forty four various international locations protecting all 5 continents, which confirms the luck and worldwide succeed in of the 2 meetings. After a rigorous double-blind evaluate, a complete of 116 submissions have been authorized as complete papers. From these, this system Committee chosen 27 for booklet during this booklet, which have been then revised by means of the authors. specified thank you are as a result of all participants and referees, with no whom this e-book don't have been attainable. VISAPP/GRAPP 2006 incorporated 4 invited keynote lectures, provided through across the world famous researchers. The displays represented an enormous contribution to expanding the final caliber of the convention. we wish to specific our appreciation to all invited keynote audio system, in alphabetical order, Marc Alexa (TU Berlin/Germany), André Gagalowicz (INRIA/France), Ken Perlin (New York University/USA), Peter Robinson (University of Cambridge/UK), whose displays are in part integrated within the first portion of the booklet. the second one and 3rd sections comprise chosen papers from VISAPP 2006 and GRAPP 2006 respectively.

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Extra info for Advances in Computer Graphics and Computer Vision: International Conferences VISAPP and GRAPP 2006, Setúbal, Portugal, February 25-28, 2006, Revised Selected Papers

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16. Sketching an approximate C AMEL lip by reducing the weights on the positional constraints for silhouette vertices Fig. 17. Editing the bumpy A RMADILLO leg: although the silhouette (yellow) in the ROI (blue) has substantial depth variation and the desired silhouette (green) is smooth, properly weighting the positional constraints retains the surface characteristics after the edit This method works well even for moderately noisy and bumpy surfaces and preserves details nicely (see Fig. 17). Note that for very noisy surfaces, object space silhouette paths and loops may become arbitrarily segmented, in which case our silhouette sketching method is no longer applicable.

On the other hand, the non-local bases in multi-resolution representations limit the choice of the editing region and boundary constraints, but absolute coordinates are computed Mesh Editing Based on Discrete Laplace and Poisson Models 27 much simpler and faster by summing displacements through the hierarchy. Additionally, we would like to mention that we have found the Laplacian approach to be easier to implement and less brittle in practice. In general, modeling geometry should be coupled to modeling other surface properties, such as textures.

Thus, signatures can be easily stored and transfered. The remaining of the paper is structured as follows. Section 2 outlines our approach. Sections 3–4 address the main issues involved in the construction of a signatures. In particular, Section 3 discusses mesh decomposition into meaningful components while 46 A. Tal and E. Zuckerberger Section 4 describes the determination of basic shapes. Section 5 presents our experimental results. Section 6 concludes the paper. , VRML) and one specific object O, the goal is to retrieve from the database objects similar to O.

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