| 基于小波变换的胶囊内镜图像检索 |
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| 引用本文： | 李凯旋,刘哲星,吕庆文,潘建南,叶山亮,陈宇轩,刘思德. 基于小波变换的胶囊内镜图像检索[J]. 现代消化及介入诊疗, 2011, 16(2): 77-81 |
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| 作者姓名： | 李凯旋 刘哲星 吕庆文 潘建南 叶山亮 陈宇轩 刘思德 |
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| 作者单位： | 1. 南方医科大学生物医学工程学院,510515
2. 南方医科大学南方医院,510515 |
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| 基金项目： | 广东省科技计划项目,广东省教育部产学研结合项目,科技部科技人员服务企业行动项目 |
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| 摘 要： | 目的探索基于内容的胶囊内镜彩色疑似病例图像的检索效果。方法本文运用小波变换对胶囊内镜彩色图像纹理特征进行提取和相关改进,将图像分别在RGB空间和HSI空间下进行处理,对图像的各个颜色通道进行三层小波分解及提取出图像的各通道低频信息,并对各个分量进行分配权重。各个通道的低频信息融合了图像的颜色和纹理信息,将其作为区分胶囊内镜图像的特征向量,并由经典的欧式距离刻画待检图像与标准病例图像的相似度。结果经研究比较三种方法,本文方法检索胶囊内镜病例图片效果较好。结论针对胶囊内镜图像特点,本文所述方法能更好地反映了胶囊内镜图像颜色的空间分布信息且更加符合医生视觉。
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| 关 键 词： | 胶囊内窥镜 小波变换 颜色空间 颜色和纹理特征 |
Capsule endoscopic image retrieval based on wavelet transform |
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| LI Kai-xuan,LIU Zhe-xing,LV Qing-wen,PAN Jian-nan,YE Shan-liang,CHEN Yu-xuan,LIU Si-de. Capsule endoscopic image retrieval based on wavelet transform[J]. Modern Digestion & Intervention, 2011, 16(2): 77-81 |
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| Authors: | LI Kai-xuan LIU Zhe-xing LV Qing-wen PAN Jian-nan YE Shan-liang CHEN Yu-xuan LIU Si-de |
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| Affiliation: | LI Kai-xuan1,LIU Zhe-xing1,LV Qing-wen1,PAN Jian-nan1,YE Shan-liang2,CHEN Yu-xuan2,LIU Si-de2.1 School of Biomedical Engineering,Southern Medical University,Guangzhou 510515,2 Nanfang Hospital |
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| Abstract: | Objective To explore the effectiveness of content based capsule endoscopic image retrieval of suspected cases.Methods The endoscopic image texture feature was extracted using wavelet transform and some relevant improvements were made.The images from each channel were processed in RGB and HSI spaces using three layers of wavelet decomposition,and low-frequency information of each channel signals was extracted,assigning different weights to each component.Each channel's low-frequency information combined imag... |
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| Keywords: | Capsule endoscopy Wavelet transform Color space Color and texture feature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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