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We present a single-image 3D face synthesis technique that can handle challenging facial expressions while recovering fine geometric details. Our technique employs expression analysis for proxy face geometry generation and combines…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Anpei Chen , Zhang Chen , Guli Zhang , Ziheng Zhang , Kenny Mitchell , Jingyi Yu

We combine the newly discovered technique, which computes explicit formulas for the image of an algebraic curve under rational transformation, with techniques that enable to compute braid monodromies of such curves. We use this combination…

Algebraic Geometry · Mathematics 2007-05-23 S. Kaplan , A. Shapiro , M. Teicher

This paper presents a structured ordinal measure method for video-based face recognition that simultaneously learns ordinal filters and structured ordinal features. The problem is posed as a non-convex integer program problem that includes…

Computer Vision and Pattern Recognition · Computer Science 2015-07-10 Ran He , Tieniu Tan , Larry Davis , Zhenan Sun

We study of the shape of a compact singular minimal surface in terms of the geometry of its boundary, asking what type of {\it a priori} information can be obtained on the surface from the knowledge of its boundary. We derive estimates of…

Differential Geometry · Mathematics 2019-12-18 Rafael López

We study the relationship between singularities of finite-dimensional integrable systems and singularities of the corresponding spectral curves. For the large class of integrable systems on matrix polynomials, which is a general framework…

Exactly Solvable and Integrable Systems · Physics 2016-08-04 Anton Izosimov

Recently holographic prescriptions are proposed to compute quantum complexity of a given state in the boundary theory. A specific proposal known as `holographic subregion complexity' is supposed to calculate the the complexity of a reduced…

High Energy Physics - Theory · Physics 2017-10-25 Elaheh Bakhshaei , Ali Mollabashi , Ahmad Shirzad

First, this paper presents a systematic procedure for constructing criteria for singularities of curves of finite multiplicities in $\boldsymbol{R}^N$. Based on this method, we provide explicit criteria for singularities of multiplicities…

Differential Geometry · Mathematics 2026-05-13 Jun Matsumoto , Shuki Sano , Kiyoto Yanagida

The degree-diameter problem consists of finding the maximum number of vertices $n$ of a graph with diameter $d$ and maximum degree $\Delta$. This problem is well studied, and has been solved for plane graphs of low diameter in which every…

Combinatorics · Mathematics 2024-01-23 Brandon Du Preez

Deep networks trained on millions of facial images are believed to be closely approaching human-level performance in face recognition. However, open world face recognition still remains a challenge. Although, 3D face recognition has an…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Syed Zulqarnain Gilani , Ajmal Mian

Face recognition from a single image per person is a challenging problem because the training sample is extremely small. We consider a variation of this problem. In our problem, we recognize only one person, and there are no labeled data…

Machine Learning · Computer Science 2026-05-01 Branislav Kveton , Michal Valko

In this work we study the mutual benefits of two common computer vision tasks, self-supervised depth estimation and semantic segmentation from images. For example, to help unsupervised monocular depth estimation, constraints from semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Shengjie Zhu , Garrick Brazil , Xiaoming Liu

We study isolated quotient singularities by finite and linearly reductive group schemes (lrq singularities for short) and show that they satisfy many, but not all, of the known properties of finite quotient singularities in characteristic…

Algebraic Geometry · Mathematics 2025-12-17 Christian Liedtke , Gebhard Martin , Yuya Matsumoto

Face recognition has been widely accepted as a means of identification in applications ranging from border control to security in the banking sector. Surprisingly, while widely accepted, we still lack the understanding of uniqueness or…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Michal Balazia , S L Happy , Francois Bremond , Antitza Dantcheva

We propose a two-level structural optimization method for obtaining an approximate optimal shape of piecewise developable surface without specifying internal boundaries between surface patches. The condition for developability of a…

Optimization and Control · Mathematics 2024-11-22 Makoto Ohsaki , Kentaro Hayakawa , Jingyao Zhang

With the increasing demands of applications in virtual reality such as 3D films, virtual Human-Machine Interactions and virtual agents, the analysis of 3D human face analysis is considered to be more and more important as a fundamental step…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Shu Zhang , Hui Yu , Ting Wang , Junyu Dong , Honghai Liu

Face verification is a problem approached in the literature mainly using nonlinear class-specific subspace learning techniques. While it has been shown that kernel-based Class-Specific Discriminant Analysis is able to provide excellent…

Computer Vision and Pattern Recognition · Computer Science 2018-07-06 Guanqun Cao , Alexandros Iosifidis , Moncef Gabbouj

We study the combinatorial complexity of D-dimensional polyhedra defined as the intersection of n halfspaces, with the property that the highest dimension of any bounded face is much smaller than D. We show that, if d is the maximum…

Computational Geometry · Computer Science 2013-07-30 David Eppstein , Maarten Löffler

Deep neural networks have dramatically advanced the state of the art for many areas of machine learning. Recently they have been shown to have a remarkable ability to generate highly complex visual artifacts such as images and text rather…

Computer Vision and Pattern Recognition · Computer Science 2016-07-08 Andrey Zhmoginov , Mark Sandler

Fast and robust three-dimensional reconstruction of facial geometric structure from a single image is a challenging task with numerous applications. Here, we introduce a learning-based approach for reconstructing a three-dimensional face…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Elad Richardson , Matan Sela , Ron Kimmel

In this survey article we introduce the notion of frontals, which provides a class of generalised submanifolds with singularities but with well-defined tangent spaces. We present a review of basic theory and known studies on frontals in…

Differential Geometry · Mathematics 2016-09-05 Goo Ishikawa
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