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Research on super-resolution reconstruction for video image of Jilin-1 satellite |
| BU Lijing1, ZHENG Xinjie2, XIAO Yiming2, ZHANG Zhengpeng1 |
1. School of Geomatics, Liaoning Technical University, Fuxin 123000, China;
2. Heilongjiang Institute of Geomatics Engineering, Harbin 150081, China |
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Abstract According to the super-resolution reconstruction of Jilin-1 satellite and on the basis of an analysis of different characteristics of satellite video and common video as well as remote sensing image,the authors studied the motion estimation applicability of the Vandewalle method and the method of LK(Lucas-Kanade)optical flow in pyramid under the situation of imaging scene containing moving objects. At the same time, according to the median shift and add(MSA)method, the new median shift and add(NMSA)method was proposed to tackle the problem that the edge information is not clear because of the lack of complementary information between the frames in the video satellite image reconstruction. First, a resolution grid is established based on the multiple of reconstruction, and the two grids are unified into a unified space. Then, the low-resolution pixel values that participate in estimation are determined. With the pixel of the image reconstruction grid to be determined as the center, the allowed error is used to determine the reconstruction pixel values. The experiments using the data of Jilin-1 satellite prove the effectiveness of the method proposed in this paper.
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| Keywords
coal fire in Wuda
self-adaptive gradient-based thresholding(SAGBT)
thermal infrared
temperature retrieval
remote sensing assessment
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Issue Date: 04 December 2017
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2017,
Vol. 29
