A NOVEL ALGORITHM OF MULTI-SENSOR IMAGE FUSION BASED ON WAVELET PACKET TRANSFORM

被引：3

作者：

Cheng Yinglei Zhao Rongchun Hu Fuyuan Li Ying Department of Computer Science and Engineering Northwestern Polytechnical University Xian China The Telecommunication Engineering Institute Air Force Engineering University Xian China ^{[710072
,710077
]}

机构：

来源：

Journal of Electronics | 2006年 / 02期

关键词：

D O I：

暂无

中图分类号：

TN911.73 [图像信号处理];

学科分类号：

摘要：

<正>In order to enhance the image information from multi-sensor and to improve the abilities of the information analysis and the feature extraction, this letter proposed a new fusion approach in pixel level by means of the Wavelet Packet Transform (WPT). The WPT is able to decompose an image into low frequency band and high frequency band in higher scale. It offers a more precise method for image analysis than Wavelet Transform (WT). Firstly, the proposed approach employs HIS (Hue, Intensity, Saturation) transform to obtain the intensity component of CBERS (China-Brazil Earth Resource Satellite) multi-spectral image. Then WPT transform is employed to decompose the intensity component and SPOT (Systeme Pour I'Observation de la Therre ) image into low frequency band and high frequency band in three levels. Next, two high frequency coefficients and low frequency coefficients of the images are combined by linear weighting strategies. Finally, the fused image is obtained with inverse WPT and inverse HIS. The results show the new approach can fuse details of input image successfully, and thereby can obtain a more satisfactory result than that of HM (Histogram Matched)-based fusion algorithm and WT-based fusion approach.

引用

页码：314 / 317

页数：4

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