A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. International Journal of Computer Vision, 23(2):185-198, 1997. 33 Home/Search Document Details and Download
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Surface Reconstruction from Multiple Views using Rational.. - Siddiqui, Sclaroff (2002) (1 citation) (Correct)
....or tiny planes with associated texture in [5, 8, 15] While general, in practice many facets are needed for these methods to successfully approximate a surface. In many cases objects intrinsically do not have such high complexity and more appropriate classes of models are sought. In [3] and [10], methods have been proposed that can be used when objects are wellapproximated by quadric surfaces. In [3] the quadric surface is estimated by relating its silhouette to the projected image. In a different approach, 10] examines the induced flow field of quadric objects. In this work we ....
....complexity and more appropriate classes of models are sought. In [3] and [10] methods have been proposed that can be used when objects are wellapproximated by quadric surfaces. In [3] the quadric surface is estimated by relating its silhouette to the projected image. In a different approach, [10] examines the induced flow field of quadric objects. In this work we further develop the treatment of model and surfaces priors in structure from motion. This general idea has been considered in [20] where bundle adjustment was augmented with a parameterized model. In our work we consider models ....
A. Shashua and S.Toelg. The quadric reference surface: Theory and applications. IJCV, 23(2):185--198, 1997.
Surface Reconstruction from Multiple Views using Rational.. - Siddiqui, al. (2002) (1 citation) (Correct)
....or tiny planes with associated texture in [5, 8, 15] While general, in practice many facets are needed for these methods to successfully approximate a surface. In many cases objects intrinsically do not have such high complexity and more appropriate classes of models are sought. In [3] and [10], methods have been proposed that can be used when objects are wellapproximated by quadric surfaces. In [3] the quadric surface is estimated by relating its silhouette to the projected image. In a different approach, 10] examines the induced flow field of quadric objects. In this work we ....
....complexity and more appropriate classes of models are sought. In [3] and [10] methods have been proposed that can be used when objects are wellapproximated by quadric surfaces. In [3] the quadric surface is estimated by relating its silhouette to the projected image. In a different approach, [10] examines the induced flow field of quadric objects. In this work we further develop the treatment of model and surfaces priors in structure from motion. This general idea has been considered in [20] where bundle adjustment was augmented with a parameterized model. In our work we consider models ....
A. Shashua and S.Toelg. The quadric reference surface: Theory and applications. IJCV, 23(2):185--198, 1997.
Surface Reconstruction from Multiple Views using Rational.. - Siddiqui, Sclaroff (2001) (1 citation) (Correct)
....typically contains structures with strong geometric regularities that can be used to constrain the estimation problem. Consequently, algorithms have been proposed for the special cases of planes [1, 11, 22, 26, 27, 31] piecewise planar models [3, 19] polygonal meshes [14] and quadric surfaces [8, 18]. In this paper we propose a method for reconstructing 3D rational B spline surfaces from multiple views. As will be shown, we can exploit the the projective invariance properties of rational B splines to gain a solution to the 3D surface estimation problem. The approach is demonstrated in a ....
....the estimated surface with projections into estimated cameras. Surfaces have also been modeled as oriented particles or tiny planes with associated texture in [13, 15, 25] While very general, mesh and particle representations tend to over parameterize smoothly curved surfaces. In [8] and [18], methods have been proposed that can be used when objects are well approximated by quadratic surfaces. In [8] the quadratic surface is estimated by relating the silhouette of the quadratic surfaces to the projected image. In a different approach, 18] examines the induced flow field of quadratic ....
[Article contains additional citation context not shown here]
A. Shashua and S.Toelg. The quadric reference surface: Theory and applications. IJCV, 23(2):185--198, 1997.
A Qualitative Approach to Classifying Gaze Direction - Pappu, Beardsley (1998) (4 citations) (Correct)
....contains experimental results. 1 We use the term qualitative for this approach to indicate that there is no computation of absolute angles of the head pose; however, we will make accurate and repeatable measurements related to the head pose. 2 Overview The head is modelled with an ellipsoid [1, 5]. An ellipsoid is a crude model but is sufficient in the context of the overall system since our aim is not to make accurate quantitative measurements, but to identify frequently adopted head poses, and to classify these poses based on a qualitative description of their relative orientations. ....
A. Shashua and S. Toelg. The quadric reference surface: theory and applications. International Journal of Computer Vision, 23(2):185--198, 1997.
Q-warping: Direct Computation of Quadratic Reference Surfaces - Wexler, Shashua Self-citation (Shashua) (Correct)
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A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. International Journal of Computer Vision, 23(2):185--198, 1997.
Towards an Example-Based Image Compression Architecture for.. - Toelg, Poggio (1994) (8 citations) Self-citation (Toelg) (Correct)
....time scale we can assume that we have prior knowledge about the object class. This suggests the use of a generic object model such as an average or prototypical face. Some appropriate model assumptions at this level are: a rough model of the 3 D shape of a face head (e.g. a quadric surface, see [53, 54] for details) human heads exhibit approximately bilateral symmetry; the set of constituents of a face (two eyes, nose, mouth, two ears, etc. stable features of constituents (the pupil is round and darker than the white eye bulbus, teeth are white, the holes in the nose are dark, the relative ....
....by a plane) about faces heads in order to increase the range of transformations resulting in natural looking images. Recently, an algorithm has been presented that applies the model of a general quadric surface to map two images of faces taken under perspective projection onto each other [53, 54]. Using a projective framework, a constructive proof is given that in general nine corresponding reference points and the epipoles in two views of an approximately quadric surface determine the correspondences for all other image points of that surface. Encouraging results have been achieved for ....
[Article contains additional citation context not shown here]
A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. Technical Report AI Memo 1448 and CBCL Paper 85, Artificial Intelligence Laboratory, MIT and Center for Biological and Computational Learning, Whitaker College, June 1994. Also submitted for publication to International Journal of Computer Vision.
A Feature-Based, Robust, Hierarchical Algorithm for.. - Can, Stewart.. (2001) (1 citation) (Correct)
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A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. International Journal of Computer Vision, 23(2):185-198, 1997. 33
Quadric Transfer for Immersive Curved Display - Rasker, van Baar, Willwacher (2004) (Correct)
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SHASHUA A., TOELG S.: The quadric reference surface: Theory and applications. International Journal of Computer Vision (IJCV) 23, 2 (1997), 185--198. 1, 2, 3, 4
iLamps: Geometrically Aware and Self-Configuring.. - Raskar, van Baar.. (2003) (4 citations) (Correct)
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SHASHUA, A., AND TOELG, S. 1997. The Quadric Reference Surface: Theory and Applications. In IJCV, vol. 23(2), 185--189.
Low-Cost Multi-Projector Curved Screen Displays - Raskar, van Baar (2005) (Correct)
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Shashua A., Toelg S.: The quadric reference surface: Theory and applications. International Journal of Computer Vision (IJCV) 23, 2 (1997), 185.198.
Surface Reconstruction from Multiple Views using Rational.. - Siddiqui, Sclaroff (2001) (1 citation) (Correct)
No context found.
A. Shashua and S.Toelg. The quadric reference surface: Theory and applications. IJCV, 23(2):185--198, 1997.
Computer Vision Applied to Super-resolution - Capel, Zisserman (2003) (6 citations) (Correct)
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A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. IJCV, 23(2):185--198, 1997.
A Feature-Based, Robust, Hierarchical Algorithm for.. - Can, Stewart.. (2001) (1 citation) (Correct)
No context found.
A. Shashua and S. Toelg. The quadric reference surface: Theory and applications. International Journal of Computer Vision, 23(2):185-198, 1997. 33
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