A new approach toward target representation and localization, the central component in visual tracking of nonrigid objects, is proposed. The feature histogram-based target representations are regularized by spatial masking with an isotropic kernel.

论文介绍了一种SFS 算法的参数估计及其实现。它在考虑自遮掩影响的情况下, 有效地估计了SFS 算法中涉及的各种控制参数, 并引入亮度约束、灰度梯度约束和可积性约束, 计算出表面高度和表面向量, 实现三维重构。最后还指出了在Matlab 中实现需要注意的问题。-The paper introduced a SFS algorithm parameter estimation and its implementation. It under the condition of considering

基于matlab的4种梯度算子，Sobel Operator、Laplacian Operator、Prewitt Operator-Matlab based on the four kinds of gradient operator

matlab code is designed for template matching and further extraction of water bodies from satellite images based on gradient density. code also consists of color segmentation and automatic useful cluster selections.