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A NEW IMAGE REGISTRATION METHOD FOR GREY IMAGES 被引量:5
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作者 NieXuan zhaorongchun JiangZetao 《Journal of Electronics(China)》 2004年第5期426-431,共6页
The proposed algorithm relies on a group of new formulas for calculating tangent slope so as to address angle feature of edge curves of image. It can utilize tangent angle features to estimate automatically and fully ... The proposed algorithm relies on a group of new formulas for calculating tangent slope so as to address angle feature of edge curves of image. It can utilize tangent angle features to estimate automatically and fully the rotation parameters of geometric transform and enable rough matching of images with huge rotation difference. After angle compensation, it can search for matching point sets by correlation criterion, then calculate parameters of affine transform, enable higher-precision emendation of rotation and transferring. Finally, it fulfills precise matching for images with relax-tense iteration method. Compared with the registration approach based on wavelet direction-angle features, the matching algorithm with tangent feature of image edge is more robust and realizes precise registration of various images. Furthermore, it is also helpful in graphics matching. 展开更多
关键词 图象配准 灰色图像 边缘检测 仿射变换
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AN IMPROVED RADIAL BASIS FUNCTION BASED METHOD FOR IMAGE WARPING
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作者 NieXuan zhaorongchun +1 位作者 ZhangCheng ZhangXiaoyan 《Journal of Electronics(China)》 2005年第4期422-426,共5页
A new image warping method is proposed in this letter, which can warp a given image by some manual defined features. Based on the radial basis interpolation function algorithm, the proposed method can transform the or... A new image warping method is proposed in this letter, which can warp a given image by some manual defined features. Based on the radial basis interpolation function algorithm, the proposed method can transform the original optimized problem into nonsingular linear problem by adding one-order term and affine differentiable condition. This linear system can get the steady unique solution by choosing suitable kernel function. Furthermore, the proposed method demonstrates how to set up the radial basis function in the target image so as to achieve supports to adopt the backward re-sampling technology accordingly which could gain the very slippery warping image. Theexperimental result shows that the proposed method can implement smooth and gradual image warping with multi-anchor points' accurate interpolation. 展开更多
关键词 图象扭曲 径向基函数 像素映象 仿射映射
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NOVEL QUANTUM-INSPIRED GENETIC ALGORITHM BASED ON IMMUNITY
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作者 LiYing zhaorongchun +1 位作者 ZhangYanning JiaoLicheng 《Journal of Electronics(China)》 2005年第4期371-378,共8页
A novel algorithm, the Immune Quantum-inspired Genetic Algorithm (IQGA), is proposed by introducing immune concepts and methods into Quantum-inspired Genetic Algorithm (QGA). With the condition of preserving QGA's... A novel algorithm, the Immune Quantum-inspired Genetic Algorithm (IQGA), is proposed by introducing immune concepts and methods into Quantum-inspired Genetic Algorithm (QGA). With the condition of preserving QGA's advantages, IQGA utilizes the characteristics and knowledge in the pending problems for restraining the repeated and ineffective operations during evolution, so as to improve the algorithm efficiency. The experimental results of the knapsack problem show that the performance of IQGA is superior to the Conventional Genetic Algorithm (CGA), the Immune Genetic Algorithm (IGA) and QGA. 展开更多
关键词 遗传算法 QGA 免疫算子 渐缩问题
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