A family of n-dimensional Lee spheres L is a tiling of Rn , if ∪L = Rn and for every Lu , Lv ∈ L, the intersection Lu ∩ Lv is contained in the boundary of Lu . If neighboring Lee spheres meet along entire (n−1)-dimensional faces, then L is called a face-to-face tiling. We prove the nonexistence of a face-to-face tiling of R4 with Lee spheres of different radii. c © 2005 Elsevier Ltd. All rights...

The crystal structure of the title compound, C(90)H(100)N(6)O(24)S(2)·C(4)H(8)O(2)·0.25C(6)H(14), solved and refined against synchrotron diffraction data, contains two formula units in the asymmetric unit with the all-trans n-hexane mol-ecule having half-occupancy and one of the ethyl acetate mol-ecules disordered over two positions. The two symmetry-independent disulfide mol-ecules are assembl...

Let A be a separable C−algebra and A its enveloping W −algebra. A result of Akemann, Anderson, and Pedersen states that if {pn} is a sequence of mutually orthogonal, minimal projections in A such that P ∞ k pn is closed, ∀k, then there is a MASA B in A such that each φn|B is pure and has a unique state extension to A, where φn is the pure state of A supported by pn. We generalize this result in...

Face recognition is an important part of today’s emerging biometrics and video surveillance markets. Recent years have witnessed an exploding interest in the development of face recognition algorithms and products. Currently, face recognition systems are usually implemented on general purpose processors. As face recognition algorithms move from research labs to the real world, power consumption...

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p. ix Conference Organizers p. x Program Committee p. xi Face Analysis Eigen Light-Fields and Face Recognition across Pose p. 3 Real-Time, Fully Automatic Upper Facial Feature Tracking p. 10 A Unified Learning Framework for Real Time Face Detection and Classification p. 16 Detection and Recognition Consistency and Coupling in Human Model Likelihoods p. 27 An Investigation into the Use of Partia...

Face detectio n is o ne o f th e h o t research to p ics in C o m p uter Visio n, and greatly p rogressed in past decade. However, as far as we know, face detectio n in low-reso lutio n im ages h as no t been studied (m o st sy stem detects faces bigger th an 2 0×2 0 o r 2 4×2 4 p ixels). A co nventio nal AdaB oo st based face detectio n m eth od (Vio la & Jo nes) can detect m erely 3 2 % o f f...