| 基于图像变形的全景平滑漫游算法研究 |
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| 引用本文： | 王松,;朱正平,;杨景玉,;王阳萍.基于图像变形的全景平滑漫游算法研究[J].兰州铁道学院学报,2014(3):82-86. |
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| 作者姓名： | 王松 ;朱正平 ;杨景玉 ;王阳萍 |
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| 作者单位： | [1]兰州交通大学电子与信息工程学院,甘肃兰州730070; [2]兰州城市学院信息工程学院,甘肃兰州730070 |
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| 基金项目： | 甘肃省科技支撑计划项目（1104GKCA057） |
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| 摘 要： | 针对目前全景漫游系统在切换视点时产生跳跃感的问题,提出了一种基于图像变形的平滑漫游算法.首先采用SIFT特征提取方法对过渡图像进行特征提取,同时采用图像区域划分的方法对特征点进行筛选,建立特征点集的映射关系;然后,构造特征点集的Delaunay三角剖分,在三角剖分的基础上,计算对应三角形区域的仿射变换参数;最后,对图像进行插值和生成中间过渡图像.实验表明该方法实现了特征点集的自动对应,提高了全景漫游系统的交互性和沉浸感,算法实用、高效,对于有诸多不确定性因素的过渡图像有较好的自适应性.
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| 关 键 词： | 全景漫游 Delaunay三角剖分 图像变形 |
Research on Panoramic Smooth Roaming System Based on Image Morphing |
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| Institution: | WANG Song, ZHU Zheng-ping, YANG Jing-yu, WANG Yang-ping (1. School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. School of Information Engineering, Lanzhou City University, Lanzhou 730070, China) |
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| Abstract: | A practical,efficient smooth roaming algorithm based on image distortion for switching viewpoints in panoramic system is presented.The feature extraction method is presented by using SIFT method,the key points are filtered by using the method of dividing the region,and the map relation of key point set is established.Then,the Delaunay triangulation of feature point set is constructed and the affine transformation parameters of corresponding region on the basis of Delaunay triangulation are evaluated.Finally,the intermediate images after interpolating the ima-ges are produced for smoothly switching.The experiments show the problems above have been well resolved.The method implements the automation corresponding relation of feature point set and enhances the interactive and immersion of panoramic system.The result shows the method is practical and highly efficient,and it has better adaptive for the images influenced by some uncertain factors. |
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| Keywords: | SIFT panoramic warping SIFT Delaunay triangulation image morphing |
| 本文献已被 CNKI 维普 等数据库收录！ |
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