Peter Litwinowicz and Gavin Miller. Efficient techniques for interactive texture placement. In SIGGRAPH '94 Conference Proceedings, Annual Conference Series, pages 119--122. ACM SIGGRAPH, 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....the object. The mapping from the object to the intermediate object is based on the local features of the object points. This technique assumes some similarities between the object and the intermediate object, otherwise distortions in the texture are noticeable, which can only be corrected manually [8]. When the object is complex and has a bifurcated shape it seems inevitable to first decompose it into several simpler objects to avoid severe distortions [7] However, many objects are more or less convex at the macro level, with some concavities in the more detailed levels. Some internal ....

P. Litwinowicz and G. Miller, Efficient Techniques for Interactive Texture Placement, Computer Graphics (SIGGRAPH '94 Proceedings), 119--122, 1994.

....correspondence algorithm for the shape template tool. 6.2.2 DEPTH IMAGE WARPING ALGORITHM Since LM optimization gives us an approximation of R and S, the set of points Q will not project directly through the set of points P on the model. We therefore apply 2D warping techniques as described by [29]. The process is as follows (Figure 6 5) First, we update the depth channel for the current layer according to the transformed 3D object. This gives us depth according to the LM optimization. Then, we project the set of points P to the reference image to form a second set of points T . We perform ....

Peter Litwinowicz and Gavin Miller. Efficient techniques for interactive texture placement. In Andrew Glassner, editor, Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994.

....the mapping of a texture on a complex cut surface in one go. The method can be extended easily to honor other kind of linear constraints. All these constraints allow the method to take into account user specified information while beeing much more automatic than other interactive mapping methods [Ped95, LM94, MYV93], where the parametrization is partially or completely defined by the user. The first section of the paper summarizes the notions involved in texture mapping on triangulated meshes, and shows how a mapping can be constructed using an iterative optimization algorithm. In Section 2, the criteria to ....

P. Litwinowicz and G. Miller. Efficient Techniques for Interactive Texture Placement. In SIGGRAPH 94 Conference Proceedings, pages 119--122. ACM, July 1994.

....Much of this work deals with texture mapping implicit or complex, unparameterised surfaces. Maillot et al. 19] define a deformation process based on energy minimisation that lessens the distortion of texture maps interactively placed on complicated surfaces. Litwinowicz and Miller [20] provide additional improvements to this work. Agrawala et al. 21] present an interactive technique for painting unparameterised 3D polygonal meshes. Pedersen describes a technique for applying texture maps to implicit surfaces [22] as well as a general framework for texturing other kinds of ....

P. Litwinowicz and G. Miller. Efficient techniques for interactive texture placement. In A. Glassner, editor, SIGGRAPH 94 Conference Proceedings, Annual Conference Series, pages 119--122. ACM SIGGRAPH, Addison Wesley, July 1994.

....cavities to a volume. Our method provides a general mapping scheme for all surfaces with a C 1 continuous normal. 1.1 Background Adding texture on surfaces without distortion received a lot of attention in previous works. Previous methods fall into two categories: Direct painting methods [1,8,10], where a user manually paints the objects, and chart based methods [2,11,16,17] where a user sub divides the surface into sub patches, parametrizes each sub patch and then picks a mapping for each sub patch. In both categories, a user has to manually specify the extent and contents of texture ....

Litwinowicz, P., Miller, G., "Efficient Techniques for Interactive Texture Placement", Proceedings of SIGGRAPH 94, pp. 119-122.

....on Dalmation canines, skin wrinkles surrounding a human body and vein formations inside human cavities (e.g. nose) There are many previous publications on methods to map texture continuously over surfaces with no size distortion. We divide these methods into two main groups: Painting methods [1, 22, 31] where a user is given a virtual brush and paint. The user can paint the surfaces of the object with texture. There are two problems with this approach: 1) It assumes that the user can paint nice pictures. It doesn t allow taking existing images and pasting them on the surface. 2) The amount of ....

....models. This system assumes that the models are physical models and that we sample their surface into a digital format using a three dimensional scanner. They use three dimensional brushes and paint the portion of the target surface intersecting with the brush volume. Litwinowicz and Miller [31] present a method for interactive placement of texture maps on surface models. It starts with a rough projection of the texture on the model, and allow the user to interactively warp features in the texture to match their geometric counterparts in the models. This method assumes that the texture ....

Litwinowicz, P., Miller, G., "Efficient Techniques for Interactive Texture Placement",Proceedings of SIGGRAPH'94 (Orlando, Florida, July 24-29, 1994). In Computer Graphics Proceedings, Annual Conference Series, 1994, ACM SIGGRAPH, pp. 119-122.

....twenty years after texture mapping was first described by Catmull [catm74] the graphics community is still addressing such problems. This is clearly a strong motivation for researching alternative methods for pattern placement. It is not of course that there has not been any progress made. In [litw94], for example, an interactive system for texture placement is proposed. The idea is to define indirectly the mapping via user manipulation of the texture while it is being placed on the surface of the object. Objects and camera are constrained to remain fixed during the whole texturing process, ....

P. Litwinowicz and G. Miller. "Efficient Techniques for Interactive Texture Placement". Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994), Computer Graphics Proceedings, Annual Conference Series, pp. 119--122, July 1994.

....creation and application of hand drawn textures. The first approach attempts to map textures in model space back into texture space to hide the effects of distortion. The second approach uses information about the surface to minimize the effects of distortion and placement from the mapping process [6,7,8]. Our approach falls in the first category. 2.1 3D paint Methods that allow a user to paint onto the model rather than in the texture image space are commonly known as 3D paint programs. In [9] Hanrahan painted onto 3D mesh objects using a mouse. An auxiliary item buffer that stores an object ....

Litwinowicz, Peter and Miller, Gavin, "Efficient Techniques for Interactive Texture Placement", Computer Graphics, (SIGGRAPH'94 Proceedings), Vol. 24, No. 4, July

....eyes, hair, we want them to match the corresponding details on the 3D object (Figure 3) This is a difficult operation when the images and the 3D objects are slightly different. We created an interactive texture fitting software (Sannier et al. 1997) for realizing this kind of precise texturing (Litwinowicz et al. 1994). The idea is to allow the designers to correlate the main features, of the texture, directly with the 3D object. These features are projected on the 2D image where the designer can adjust the position of these features; the texture is then applied to the object using these points as references. ....

Litwinowicz, P., & Miller, G. (1994). Efficient Techniques for Interactive Texture Placement. SIGGRAPH proceedings 94, 119-122.

....Much of this work deals with texture mapping implicit or complex, unparameterized surfaces. Maillot et al. 15] define a deformation process based on energy minimization that lessens the distortion of texture maps interactively placed on complicated surfaces. Litwinowicz and Miller [13] provide additional improvements to this work. Agrawala et al. 1] present an interactive technique for painting unparameterized 3 D polygonal meshes. Pedersen describes a technique for applying texture maps to implicit surfaces [17] as well as a general framework for texturing other kinds of ....

P. Litwinowicz and G. Miller. Efficient techniques for interactive texture placement. In A. Glassner, editor, SIGGRAPH 94 Conference Proceedings, Annual Conference Series, pages 119--122. ACM SIGGRAPH, Addison Wesley, July 1994.

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Peter Litwinowicz and Gavin Miller. Efficient techniques for interactive texture placement. In SIGGRAPH '94 Conference Proceedings, Annual Conference Series, pages 119--122. ACM SIGGRAPH, 1994.

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P. Litwinowicz and G. Miller. Efficient techniques for interactive texture placement. In Andrew Glassner, editor, Computer Graphics (SIGGRAPH 94 Conference Proceedings), pages 119--122. Addison-Wesley, July 1994. ISBN 0-89791-667-0.

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P. Litwinowicz and G. Miller. "Efficient Techniques for Interactive Texture Placement". Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994), Computer Graphics Proceedings, Annual Conference Series, pp. 119--122, July 1994.

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P. Litwinowicz. Efficient techniques for interactive texture placement. In Computer Graphics Proceedings, AnnualConference Series, pp 119--122, New York, NY, July 1994. Conference Proceedings of SIGGRAPH '94.

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. Litwinowicz and G. Miller. Efficient techniques for interactive texture placement. C mputer Graphics ( roc. of Siggraph'94), pp. 119-122, 1994.

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Litwinowicz P., Miller G., Efficient Techniques for Interactive Texture Placement, SIGGRAPH proceedings `94, pp. 119-122, 1994.

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Litwinowicz P., Miller G., Efficient Techniques for Interactive Texture Placement, Proceedings SIGGRAPH`94, pp. 119-122, 1994.

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P Litwinowicz and G Miller. Efficient techniques for interactive texture placement. Proceedings of SIGGRAPH 94 (Orlando, Florida, July 24-29, 1994). In Computer Graphics Proceedings, Annual Conference Series, 1994, ACM SIGGRAGH, pp 119--122.

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