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요약정보
基于仿射变换的图像分块拼接方法 / Image Stitching Based on Affine Transformation and Image Block
Resource Type
Academic Journal
Authors
张平梅
;
金立左
;
李久贤
;
ZHANG Ping-mei
;
JIN Li-zuo
;
LI Jiu-xian
Source
信息技术与信息化 / Information Technology & Informatization
. (1):61-65
Subject
仿射变换
图像分块
图像配准
图像拼接
Language
Chinese
ISSN
1672-9528
Online Access
Find it @ DONGA
초록
图像拼接技术是一种将包含在同一场景下的多张有重叠部分的图像拼接成一幅无缝的全景图的技术.本文实现了对相机水平旋转拍摄得到的图像的拼接,几何模型采用了仿射变换模型.本文采用图像分块的方式保证特征点均匀分布,先将图像划分为m×n块,再对图像中的每一块进行SURF特征提取,保留响应大的特征点,然后采用RANSAC算法筛选掉匹配错误的特征点,最终得到仿射变换阵,实现了图像配准.最后在图像融合阶段先采用了拼缝线的方法,避免了图像模糊以及伪图像,再采用线性加权融合算法,得到最终的拼接图像.实验结果表明,本文使用的算法兼顾了图像拼接的快速性和鲁棒性,融合后的图像效果比较理想.
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