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Characterization of entropy functions is of fundamental importance in information theory. By imposing constraints on their Shannon outer bound, i.e., the polymatroidal region, one obtains the faces of the region and entropy functions on…

Information Theory · Computer Science 2025-12-11 Shaocheng Liu , Qi Chen

Multi-view images are acquired by a lensless compressive imaging architecture, which consists of an aperture assembly and multiple sensors. The aperture assembly consists of a two dimensional array of aperture elements whose transmittance…

Information Theory · Computer Science 2013-09-13 Hong Jiang , Gang Huang , Paul Wilford

Polyhedral surfaces are fundamental objects in architectural geometry and industrial design. Whereas closeness of a given mesh to a smooth reference surface and its suitability for numerical simulations were already studied extensively, the…

Metric Geometry · Mathematics 2017-03-17 Felix Günther , Caigui Jiang , Helmut Pottmann

We study the optic control for birefringence of a polarized light by an atomic ensemble with a tripod configuration, which is mediated by the electromagnetically induced transparency with a spatially inhomogeneous laser. The atom ensemble…

Optics · Physics 2013-05-29 H. R. Zhang , Lan Zhou , C. P. Sun

We show, for several fake projective planes with nontrivial automorphism group, that the bicanonical map is an embedding.

Algebraic Geometry · Mathematics 2018-03-28 Fabrizio Catanese , JongHae Keum

We consider triangle faced convex polyhedra inscribed in the unit sphere $S^2$ in ${\Bbb{R}}^3$. One way of measuring their deviation from regular polyhedra with triangular faces is to consider the quotient of the lengths of the longest and…

Metric Geometry · Mathematics 2019-09-09 E. Makai,

Passive non-line-of-sight imaging methods are often faster and stealthier than their active counterparts, requiring less complex and costly equipment. However, many of these methods exploit motion of an occluder or the hidden scene, or…

Image and Video Processing · Electrical Eng. & Systems 2026-03-12 Sheila W. Seidel , John Murray-Bruce , Yanting Ma , Christopher Yu , William T. Freeman , Vivek K Goyal

A geometric visualization is presented for the Brewster angle for a plane wave reflecting from an interface. The surface is assumed isotropic but it is allowed to display both dielectric and magnetic susceptibility, and hence the Brewster…

Popular Physics · Physics 2009-11-11 Ari Sihvola

We construct an explicit bijection between bipartite pointed maps of an arbitrary surface $\mathbb{S}$, and specific unicellular blossoming maps of the same surface. Our bijection gives access to the degrees of all the faces, and distances…

Combinatorics · Mathematics 2022-08-02 Maciej Dołęga , Mathias Lepoutre

Research on human face processing using eye movements has provided evidence that we recognize face images successfully focusing our visual attention on a few inner facial regions, mainly on the eyes, nose and mouth. To understand how we…

Computer Vision and Pattern Recognition · Computer Science 2017-09-06 Carlos E. Thomaz , Vagner Amaral , Gilson A. Giraldi , Duncan F. Gillies , Daniel Rueckert

Human ability to visualize an image is usually hindered by optical scattering. Recent extensive studies have promoted imaging technique through turbid materials to a reality where color image can be restored behind scattering media in real…

We have completely rewritten the paper, and corrected the proofs. We construct an exponential map at any point in the (n-1)-skeleton minus the (n-2)-skeleton of an n-dimensional Riemannian polyhedron. We have added allover the…

Probability · Mathematics 2007-06-13 M. A. Aprodu , T. Bouziane

We test the hypothesis whether transforming a data matrix into a 3D shaded surface or even a volumetric display can be more appealing to humans than a scatterplot since it makes direct use of the innate 3D scene understanding capabilities…

Human-Computer Interaction · Computer Science 2019-11-19 Bing Wang , Klaus Mueller

The elucidation upon fly's neuronal patterns as a link to computer graphics and memory cards I/O's, is investigated for the phenomenon by propounding a unified theory of Einstein's two known relativities. It is conclusive that flies could…

Computational Engineering, Finance, and Science · Computer Science 2009-12-05 Philip B. Alipour

A new orthogonal decomposition for bivariate probability densities embedded in Bayes Hilbert spaces is derived. It allows one to represent a density into independent and interactive parts, the former being built as the product of revised…

Statistics Theory · Mathematics 2020-12-25 Karel Hron , Jitka Machalová , Alessandra Menafoglio

Visual events in computer vision are studied from the perspective of algebraic geometry. Given a sufficiently general curve or surface in 3-space, we consider the image or contour curve that arises by projecting from a viewpoint.…

Algebraic Geometry · Mathematics 2017-11-15 Kathlén Kohn , Bernd Sturmfels , Matthew Trager

3D-aware image synthesis has attracted increasing interest as it models the 3D nature of our real world. However, performing realistic object-level editing of the generated images in the multi-object scenario still remains a challenge.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Qian Wang , Yiqun Wang , Michael Birsak , Peter Wonka

Valentine's face-space suggests that faces are represented in a psychological multidimensional space according to their perceived properties. However, the proposed framework was initially designed as an account of invariant facial features…

Computer Vision and Pattern Recognition · Computer Science 2016-09-26 Jonathan Vitale , Mary-Anne Williams , Benjamin Johnston

Integrating visual and linguistic information into a single multimodal representation is an unsolved problem with wide-reaching applications to both natural language processing and computer vision. In this paper, we present a simple method…

Machine Learning · Statistics 2017-03-28 Guillem Collell , Teddy Zhang , Marie-Francine Moens

Autonomous driving requires efficient reasoning about the location and appearance of the different agents in the scene, which aids in downstream tasks such as object detection, object tracking, and path planning. The past few years have…

Computer Vision and Pattern Recognition · Computer Science 2022-11-10 Sarthak Sharma , Unnikrishnan R. Nair , Udit Singh Parihar , Midhun Menon S , Srikanth Vidapanakal