3D reconstruction of polyhedral objects from single perspective projections using cubic corner

Fang, Fen; Lee, Yong Tsui

doi:10.1007/3dres.02(2012)1

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…Practical solutions often aim to augment an artist by giving them more control over depth while sketching [Grimm and Joshi 2012] or the ability to create other 3D properties from a 2D viewport [Yotam Gingold and Zorin 2009]. Other avenues of research match templated patterns [Yang 2006] or use photos [Fang and Lee 2012] [Liu and Huang 2000] as a starting point. A large number of papers cover reconstruction of geometric shapes such as those found in technical drawings, requiring shapes with clearly defined planes and polygonal shapes [Suh 2006] [Fang and Lee 2012] [Naya et al 2003].…”

Section: Previous Workmentioning

confidence: 99%

Automatic single-view character model reconstruction

Buchanan

Mukundan

Doggett³

2013

Proceedings of the International Symposium on Sketch-Based Interfaces and Modeling

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Figure 1: This paper presents a method for automatically constructing 3D meshes from a single piece of concept artwork. This figure shows how a typical 2D concept image (a) is separated from the background (b) and how a bent skeleton (c) is generated and used to create polygonal shells (d). The profile view (e) shows clearly how the shells create a 3D representation of the input image. The final model (f -h) is mapped with textures based on the initial concept artwork and contains bone and vertex weighting information appropriate for animation. Details such as the hair and ears are correctly transformed into 3D, and mechanical objects such as the gun and knife have sharp edges. AbstractIn this paper we present a new method for automatically constructing 3D meshes from a single input image. With the increasing content demands of modern digital entertainment and the expectation of involvement from users, automatic artist-free systems are an important step in allowing user generated content and rapid game prototyping. Our system proposes a novel heuristic for the creation of a 3D mesh from a single piece of non-occluding 2D concept art. By extracting a skeleton structure, approximating the 3D orientation and analysing line curvature properties, appropriate centrepoints can be found around which to create the cross-sectional slices used to build a final triangle mesh. Our results show that a single 2D input image can be used to generate a rigged 3D lowpolygon model suitable for use in realtime applications.

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Section: Previous Workmentioning

confidence: 99%

Automatic single-view character model reconstruction

Buchanan

Mukundan

Doggett³

2013

Proceedings of the International Symposium on Sketch-Based Interfaces and Modeling

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“…For instance, in [ 27 ], objects are modeled using simple geometric primitives and the projections are linked with dual space geometry. Other examples of simple geometric primitives used in the literature include polyhedral models [ 28 ] and spheroid models [ 12 ].…”

Section: Related Workmentioning

confidence: 99%

Fast 3D Rotation Estimation of Fruits Using Spheroid Models

Albiol

Merás³

2021

Sensors

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Automated fruit inspection using cameras involves the analysis of a collection of views of the same fruit obtained by rotating a fruit while it is transported. Conventionally, each view is analyzed independently. However, in order to get a global score of the fruit quality, it is necessary to match the defects between adjacent views to prevent counting them more than once and assert that the whole surface has been examined. To accomplish this goal, this paper estimates the 3D rotation undergone by the fruit using a single camera. A 3D model of the fruit geometry is needed to estimate the rotation. This paper proposes to model the fruit shape as a 3D spheroid. The spheroid size and pose in each view is estimated from the silhouettes of all views. Once the geometric model has been fitted, a single 3D rotation for each view transition is estimated. Once all rotations have been estimated, it is possible to use them to propagate defects to neighbor views or to even build a topographic map of the whole fruit surface, thus opening the possibility to analyze a single image (the map) instead of a collection of individual views. A large effort was made to make this method as fast as possible. Execution times are under 0.5 ms to estimate each 3D rotation on a standard I7 CPU using a single core.

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“…Following the stroke patterns displayed in Table 3 [93,94] or vanishing points [95], and geometric assumptions as summarized in [73] are commonly required for recovering the perspective distortion. However, there is no such feature or assumption that can be applied to every image.…”

Section: Truncated Square Pyramidsmentioning

confidence: 99%

Image-inspired haptic interaction

Zhang¹

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3D reconstruction of polyhedral objects from single perspective projections using cubic corner

Cited by 10 publications

References 26 publications

Automatic single-view character model reconstruction

Automatic single-view character model reconstruction

Fast 3D Rotation Estimation of Fruits Using Spheroid Models

Image-inspired haptic interaction

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