This paper shows that the BER performance using linear equalizer for channel equalization problem is significantly dependent on delay order. To obtain optimum performance, the equalizer output should be derived from the equalizer with delay order having the best BER performance. An efficient method to evaluate the upper bound BER performance of a linear equalizer to find the optimum delay is pr...

A Golomb ruler with M marks can be defined as a set {ai} of integers so that all differences δij = aj − ai, i 6= j, are distinct. An order 2 Golomb ruler is a Golomb ruler such that all differences δijk` = |δk` − δij |, {i, j} 6 = {k, `}, are distinct as much as possible. Contruction of optimum order 2 Golomb ruler, i.e., of rulers of minimum length, is a highly combinatorial problem which has ...

In this work, we extend the applicability of perspective Shape from Shading to images incorporating non-Lambertian surfaces. To this end, we derive a new model inspired by the perspective model for Lambertian surfaces recently studied by Prados et al. and the Phong reflection model incorporating ambient, diffuse and specular components. Besides the detailed description of the modeling process, ...

An upward drawing of a tree is a drawing such that no parents are below their children. It is order-preserving if the edges to children appear in prescribed order around each vertex. Chan showed that any tree has an upward order-preserving drawing with width O(logn). In this paper, we consider upward order-preserving drawings where edges are allowed to have bends. We present a linear-time algor...

Consider a file that resides in a linear storage device with one read head. Suppose that several queries on the file must be answered simultaneously with no prespecified order. To satisfy the ith query the head must be located at point I., of the file and traverse the file up to point R, without interruptions, where 1~ L, < R, 4 N denote positions in the file. We wish to find the execution orde...

In this paper, we propose a procedure to achieve rational approximation to arbitrary fractional order linear time invariant (FO-LTI) systems with sub-optimum H2-norm. Through illustrations, we show that the rational approximation is simple and effective. It is also demonstrated that this sub-optimum approximation method is effective in designing integer order controllers for FO-LTI systems in g...

We present a new analytic BRDF for porous materials comprised of spherical Lambertian scatterers. The has single parameter: the albedo particles. resulting appearance exhibits strong back scattering and saturation effects that height-field-based models such as Oren-Nayar cannot reproduce.

In order to improve the effect of ceramic art appearance design, this work studies design method combined with VR visualization technology and builds an intelligent model. According needs industrial site requirements lighting system, area type is determined in study, light virtual product irradiated on target detection plane through refraction lens. Based Lambertian luminescence characteristics...

This paper presents an early study about a reconstruction method that extends previous space carving methods to handle all characteristics of human faces: complex non-Lambertian materials, untextured areas, highly detailed geometry, etc. This face study is seen as a preliminary step to a more general framework for nonLambertian reconstruction. We therefore avoid specific techniques like paramet...

In this work, we introduce a novel method to render, in real-time, Lambertian surfaces with rough dieletric coating. We show that the appearance of such configurations is faithfully represented two microfacet lobes accounting for direct and indirect interactions respectively. numerically fit these based on first order directional statistics (energy, mean variance) light transport using 5D table...