The Experts below are selected from a list of 723 Experts worldwide ranked by ideXlab platform
Chilwoo Lee - One of the best experts on this subject based on the ideXlab platform.
-
upper body pose recognition based on Circular Cylindrical Coordinate system
Journal of KIISE:Software and Applications, 2012Co-Authors: Jaewan Park, Daehyeon Song, Chilwoo LeeAbstract:In this paper, we propose how to recognize upper-body poses using depth image based cylindric Coordinate system. In order to recognize the pose, we configure the cylindric Coordinate system belong to body features and the distance which is configured from camera to center of body using the pose candidate images. And we extract vectors of the features using depth informations which are presented brightness values. The extracted vectors are mapped to radial feature space and classified pose pattern. And the pose patterns are learned using average of the feature points and recognized the poses by comparing pre-defined pose patterns using euclidean distance. In this paper, in order to classify the features of the upper poses, we proposed method which can be composed of the poses and the upper pose patterns. The poses and the pose patterns are composed by using distance and angle from the center of the Cylindrical Coordinate system. In this paper, we purpose to extract effective pose information using simple operation applying dynamic Cylindrical model to pose candidate images.
Jaewan Park - One of the best experts on this subject based on the ideXlab platform.
-
upper body pose recognition based on Circular Cylindrical Coordinate system
Journal of KIISE:Software and Applications, 2012Co-Authors: Jaewan Park, Daehyeon Song, Chilwoo LeeAbstract:In this paper, we propose how to recognize upper-body poses using depth image based cylindric Coordinate system. In order to recognize the pose, we configure the cylindric Coordinate system belong to body features and the distance which is configured from camera to center of body using the pose candidate images. And we extract vectors of the features using depth informations which are presented brightness values. The extracted vectors are mapped to radial feature space and classified pose pattern. And the pose patterns are learned using average of the feature points and recognized the poses by comparing pre-defined pose patterns using euclidean distance. In this paper, in order to classify the features of the upper poses, we proposed method which can be composed of the poses and the upper pose patterns. The poses and the pose patterns are composed by using distance and angle from the center of the Cylindrical Coordinate system. In this paper, we purpose to extract effective pose information using simple operation applying dynamic Cylindrical model to pose candidate images.
Daehyeon Song - One of the best experts on this subject based on the ideXlab platform.
-
upper body pose recognition based on Circular Cylindrical Coordinate system
Journal of KIISE:Software and Applications, 2012Co-Authors: Jaewan Park, Daehyeon Song, Chilwoo LeeAbstract:In this paper, we propose how to recognize upper-body poses using depth image based cylindric Coordinate system. In order to recognize the pose, we configure the cylindric Coordinate system belong to body features and the distance which is configured from camera to center of body using the pose candidate images. And we extract vectors of the features using depth informations which are presented brightness values. The extracted vectors are mapped to radial feature space and classified pose pattern. And the pose patterns are learned using average of the feature points and recognized the poses by comparing pre-defined pose patterns using euclidean distance. In this paper, in order to classify the features of the upper poses, we proposed method which can be composed of the poses and the upper pose patterns. The poses and the pose patterns are composed by using distance and angle from the center of the Cylindrical Coordinate system. In this paper, we purpose to extract effective pose information using simple operation applying dynamic Cylindrical model to pose candidate images.
Гусак, З. Т. - One of the best experts on this subject based on the ideXlab platform.
-
Physical fields of hydroacoustic antenna consisting of the angle of the horn and the piezoceramic transducer with a circumferential polarization
Киев, 2014Co-Authors: Гусак, З. Т., Лейко, А. Г., Лейко, О. Г., Gusak Z. T., Leiko A. G.Abstract:Розглянута гідроакустична антена, що складається з кругового рупорного відбивача м'якого типу і розташованого в його гирлі циліндричного п'єзокерамічного випромінювача з обводовою поляризацією. При цьому конструктивне виконання випромінювача може мати силовий або компенсований варіанти. Методами зв'язаних полів і часткових областей вирішена задача і отримані аналітичні вирази, що описують фізичні поля рупорної антени – акустичні, механічні і електричні. Ці поля представлені у вигляді розкладень у ряди по хвильовим функціям кругової циліндричної системи координат з невідомими коефіцієнтами розкладів, що визначаються із граничних умов і умов спряження полів на межах розділу областей. Рішення зведено до нескінченної системи лінійних алгебраїчних рівнянь.Considered hydroacoustic antenna consisting of the angle of the horn reflector soft type and placed in his mouth Cylindrical piezoceramic transducer with a circumferential polarization. Thus the design of the transmitter can be power or compensating type. The problem was solved by methods related fields and analytical expressions describing the physical fields of the horn antenna – acoustic, mechanical and electrical. These fields are presented in the form of expansions in series of the wave functions of the Circular Cylindrical Coordinate system with unknown expansion coefficients which are determined from the boundary conditions and the matching conditions at the interfaces between fields areas. Solution is reduced to an infinite system of linear algebraic equations.Рассмотрена гидроакустическая антенна, состоящая из уголкового рупорного отражателя мягкого типа и расположенного в его устье цилиндрического пьезокерамического излучателя с окружной поляризацией. При этом конструктивное исполнение излучателя может иметь силовой или компенсированный варианты. Методами связанных полей и частичных областей решена задача и получены аналитические выражения, описывающие физические поля рупорной антенны – акустические, механические и электрические. Эти поля представлены в виде разложений в ряды по волновым функциям круговой цилиндрической системы координат с неизвестными коэффициентами разложений, определяемыми из граничных условий и условий сопряжения полей на границах раздела областей. Решение сведено к бесконечной системе линейных алгебраических уравнений
Deepak Kumar - One of the best experts on this subject based on the ideXlab platform.
-
A preliminary ground work for the study of the characteristic dispersion equation for a slightly elliptical sheath helix slow wave structure
Journal of Electromagnetic Waves and Applications, 2004Co-Authors: Deepak KumarAbstract:In this paper we lay the ground work for the study of wave propagation through some helical slow wave structures in which the helices are wound on elliptical cylinders of very small eccentricity. The eccentricity is so small that it is assumed that the Circular Cylindrical Coordinate system may be used. Some interesting results showing the effect of anisotropy on the characteristic dispersion equation are obtained. The standard characteristic equation for the modal index n = 0 for the Circular helix as given in text books is retrieved showing that the analysis presented here is reliable. Fast wave helical structures of elliptical shape have been studied earlier by the authors.