%0 Conference Paper %B Computer Vision, 2007. ICCV 2007. IEEE 11th International Conference on %D 2007 %T An Interactive Approach to Pose-Assisted and Appearance-based Segmentation of Humans %A Zhe Lin %A Davis, Larry S. %A David Doermann %A DeMenthon,D. %K algorithm;appearance-based %K algorithm;hidden %K approach;layered %K density %K EM %K Estimation %K estimation; %K estimator;pose-assisted %K feature %K human %K Kernel %K mechanisms;pose %K method;expectation-maximisation %K model;nonparametric %K occlusion %K reasoning %K removal;image %K segmentation;inference %K segmentation;interactive %K segmentation;probabilistic %X An interactive human segmentation approach is described. Given regions of interest provided by users, the approach iteratively estimates segmentation via a generalized EM algorithm. Specifically, it encodes both spatial and color information in a nonparametric kernel density estimator, and incorporates local MRF constraints and global pose inferences to propagate beliefs over image space iteratively to determine a coherent segmentation. This ensures the segmented humans resemble the shapes of human poses. Additionally, a layered occlusion model and a probabilistic occlusion reasoning method are proposed to handle segmentation of multiple humans in occlusion. The approach is tested on a wide variety of images containing single or multiple occluded humans, and the segmentation performance is evaluated quantitatively. %B Computer Vision, 2007. ICCV 2007. IEEE 11th International Conference on %P 1 - 8 %8 2007/10// %G eng %R 10.1109/ICCV.2007.4409123 %0 Conference Paper %B Antennas and Propagation Society International Symposium, 2003. IEEE %D 2003 %T Electromagnetic scattering from a multilayered cylindrical waveguide %A Seydou,F. %A Duraiswami, Ramani %A Seppanen,T. %K circular %K core; %K cylinder; %K cylindrical %K dielectric %K dielectric-loaded %K electromagnetic %K EM %K equations; %K matching; %K Maxwell %K mode %K multilayered %K scattering; %K theory; %K wave %K waveguide %K waveguide; %K waveguides; %X This paper is devoted to electromagnetic scattering from an N multilayered circular cylinder. We consider waveguides in the z direction; that is, we look for the solution of Maxwell equations along the z direction. We assume a dielectric core and derive a mode matching approach for solving the problem. A numerical result is presented that illustrates the algorithm. %B Antennas and Propagation Society International Symposium, 2003. IEEE %V 3 %P 332 - 335 vol.3 - 332 - 335 vol.3 %8 2003/06// %G eng %R 10.1109/APS.2003.1219855 %0 Conference Paper %B Antennas and Propagation Society International Symposium, 2003. IEEE %D 2003 %T Integral equation solution of electromagnetic scattering from a multilayered cylindrical waveguide %A Seydou,F. %A Duraiswami, Ramani %A Seppanen,T. %K approximation %K circular %K core; %K cylinder; %K cylindrical %K dielectric %K dielectric-loaded %K electromagnetic %K EM %K equations; %K integral %K Maxwell %K method; %K multilayered %K numerical %K Nystrom %K scattering; %K theory; %K wave %K waveguide %K waveguides; %X This paper is devoted to the electromagnetic scattering from an N multilayered cylinder. We consider waveguides in the z direction, that is: we look for the solution of Maxwell equations along the z direction. We assume a dielectric core and discuss the problem for the case of general domains. We use an integral equation approach to solve the problem and the Nystrom method for the numerical approximation. %B Antennas and Propagation Society International Symposium, 2003. IEEE %V 3 %P 524 - 527 vol.3 - 524 - 527 vol.3 %8 2003/06// %G eng %R 10.1109/APS.2003.1219901 %0 Journal Article %J Magnetics, IEEE Transactions on %D 1993 %T A new point of view on the mathematical structure of Maxwell's equations %A Mayergoyz, Issak D %A D'Angelo,J. %K analysis;partial %K conditions;boundary %K conducting %K differential %K discretizations;mathematical %K element %K EM %K equations; %K equations;boundary %K equations;boundary-value %K equations;perfect %K example;partial %K Maxwell's %K plate;plane %K problems;electromagnetic %K problems;finite %K scattering;finite %K scattering;Maxwell %K structure;numerical %K thin %K value %K wave %X It is emphasized that the Maxwell equations have a peculiar mathematical structure which leads to boundary value problems with an overspecified number of partial differential equations and an underspecified number of boundary conditions. An attempt is made to reduce these boundary value problems to standard mathematical formulations with equal numbers of partial differential equations and boundary conditions. It is demonstrated that these formulations have some attractive features which appreciably facilitate their finite element discretizations. A numerical example involving scattering of plane electromagnetic waves from a perfect conducting thin plate illustrates the discussion %B Magnetics, IEEE Transactions on %V 29 %P 1315 - 1320 %8 1993/03// %@ 0018-9464 %G eng %N 2 %R 10.1109/20.250640