This paper presents a GPU-based multiresolution shooting and bouncing ray (MSBR) method with the kd-tree acceleration structure for the fast radar cross section (RCS) prediction of electrically large and complex targets. The multiresolution grid algorithm can greatly reduce the total number of ray tubes, as it adaptively adjusts the density of ray tubes for regions with different complexities o...

In recent textured image segmentation, Bayesian approaches capitalizing on computational efficiency of multiresolution representations have received much attention. Most of previous researches have been based on multiresolution stochastic models which use the Gaussian pyramid image decomposition. In this paper, motivated by nonredundant directional selectivity and highly discriminative nature o...

In this paper, we propose a neural network architecture, multiresolution locally expanded high order neural network Ž . MRLHONN to solve the problem of handwritten numeral recognition. In this recognition scheme, the multiresolution Ž . representation of character image is input into a high order neural network HONN , while in each resolution, only neighboring pixels are expanded to produce hig...