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Research on SAR and Panchromatic Remote Sensing Image Fusion in Wavelet Domain

Author: YuLianSheng
Tutor: WenGongJian
School: National University of Defense Science and Technology
Course: Photogrammetry and Remote Sensing
Keywords: Remote sensing Image Fusion SAR Panchromatic image Wavelet domain transform
CLC: TP751
Type: Master's thesis
Year: 2010
Downloads: 96
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Abstract


Due to differences in the imaging mechanism , the performance of the SAR and panchromatic remote sensing images of the same target contour , texture and tone of the strong complementarity between the two types of images , image fusion , can reduce the image uncertainty, for image interpretation and target identification , to provide support. Paper to enhance the complementary information of SAR and panchromatic remote sensing images and details for the purpose , focus on translation invariant discrete wavelet transform (SIDWT) the algorithms and Bandelet transform algorithm in pixel-level fusion of SAR and panchromatic remote sensing images . Thesis work are as follows : First, the wavelet domain image fusion theory . This paper analyzes the wavelet transform theory , wavelet domain image fusion algorithm processes on the evaluation criteria of the pre-processing method and image fusion of SAR and panchromatic remote sensing image fusion results . Secondly , a new the fusion rules SIDWT algorithm . Discrete wavelet transform does not have the translational invariance the SIDWT algorithm is applied to the SAR and panchromatic remote sensing image fusion , a fusion rule based on the low-frequency edge weighted . And used to solve the problem of intertidal terrain extract , the experimental results show that the algorithm is effective . Finally, the proposed fusion algorithm based on three geometric flow selection rules Bandelet . In order to take full advantage of SAR and panchromatic remote sensing images geometric regular information , this article will Bandelet transform method for SAR and panchromatic remote sensing image fusion of the Bandelet transform algorithm implementation steps , and three different geometric The streaming selection rules for the SAR and panchromatic remote sensing image fusion . The experimental results show that the algorithm has better fusion performance than the wavelet transform .

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CLC: > Industrial Technology > Automation technology,computer technology > Remote sensing technology > Interpretation, identification and processing of remote sensing images > Image processing methods
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