| 近地天空红外图像特性统计分析 |
| |
| 引用本文： | 曹华梁,丁明跃,周成平.近地天空红外图像特性统计分析[J].红外与激光工程,2003,32(6):610-612. |
| |
| 作者姓名： | 曹华梁 丁明跃 周成平 |
| |
| 作者单位： | 华中科技大学,图像识别与人工智能研究所图像信息处理与智能控制教育部重点实验室,湖北,武汉,430074 |
| |
| 摘 要： | 对近地天空的红外图像特性进行了统计分析。具体分析了近地天空长波红外(8～12μm)图像在晴空、有云、阴天和晚上的均值、方差、水平和垂直扫描线、灰度直方图的规律。结果表明,天空图像灰度均值与大气温度成正比;阴天红外图像方差较小;图像垂直扫描线上灰度值呈线性变化;水平扫描线上图像灰度值基本不变;图像直方图的分布与拍摄天气和时间有关。
|
| 关 键 词： | 长波红外 红外图像 统计分析 直方图 |
| 文章编号： | 1007-2276(2003)06-0610-03 |
| 收稿时间： | 2003/2/25 |
| 修稿时间： | 2003年2月25日 |
Statistical analysis for infrared image of the sky near the ground |
| |
| CAO Hua-liang,DING Ming-yue,ZHOU Cheng-ping.Statistical analysis for infrared image of the sky near the ground[J].Infrared and Laser Engineering,2003,32(6):610-612. |
| |
| Authors: | CAO Hua-liang DING Ming-yue ZHOU Cheng-ping |
| |
| Abstract: | The infrared image of the sky near the ground is analyzed statistically.The mean of gray level, variance, horizontal and vertical scanning line, histogram of long-wave(8～12 μm)infrared images of the sky near the ground are analyzed. The images consist of 100% sunny, 100% cloudy, cloudy and night. Result about the analysis is also given. The relation between gray level mean and atmospheric temperature is linear. The variance of 100% cloudy sky image is small. Gray level linearly changes in vertical scanning line and keeps stable in horizontal scanning line. The histogram of image depends on the weather and time. |
| |
| Keywords: | Long-wave infrared Infrared image Statistical analysis Histogram |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
