| Wavelet Analysis of Space Solar Telescope Images |
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| 作者姓名： | Xi-An Zhu Sheng-Zhen Jin Jing-Yu Wang and Shu-Nian Ning
National Astronomical Observatories Chinese Academy of Science Beijing |
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| 作者单位： | Xi-An Zhu，Sheng-Zhen Jin，Jing-Yu Wang and Shu-Nian Ning
1National Astronomical Observatories，Chinese Academy of Science，Beijing 100012;
2Department of Mechanical and Electric Engineering，China College of Mining and Technology，Beijing 100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The scientific satellite SST (Space Solar Telescope) is an important research project strongly supported by the Chinese Academy of Sciences. Every day, SST acquires 50 GB of data (after processing) but only 10GB can be transmitted to the ground because of limited time of satellite passage and limited channel volume. Therefore, the data must be compressed before transmission. Wavelets analysis is a new technique developed over the last 10 years, with great potential of application. We start with a brief introduction to the essential principles of wavelet analysis, and then describe the main idea of embedded zerotree wavelet coding, used for compressing the SST images. The results show that this coding is adequate for the job.
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| 关 键 词： | 小波分析 人造卫星 中国科学院 信号传播 |
Wavelet Analysis of Space Solar Telescope Images |
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| Xi-An Zhu,Sheng-Zhen Jin,Jing-Yu Wang and Shu-Nian Ning
National Astronomical Observatories,Chinese Academy of Science,Beijing ,
.Wavelet Analysis of Space Solar Telescope Images[J].Chinese Journal of Astronomy and Astrophysics,2003,3(6):587-596. |
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| Authors: | Xi-An Zhu Sheng-Zhen Jin Jing-Yu Wang Shu-Nian Ning |
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| Institution: | [1]NationalAstronomicalObservatories,ChineseAcademyofScience,Beijing100012 [2]DepartmentofMechanicalandElectricEngineering,ChinaCollegeofMiningandTechnology,Beijing100083 |
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| Abstract: | The scientific satellite SST (Space Solar Telescope) is an important research project strongly supported by the Chinese Academy of Sciences. Every day,SST acquires 50 GB of data (after processing) but only 10GB can be transmitted to the ground because of limited time of satellite passage and limited channel volume.Therefore, the data must be compressed before transmission. Wavelets analysis is a new technique developed over the last 10 years, with great potential of application.We start with a brief introduction to the essential principles of wavelet analysis,and then describe the main idea of embedded zerotree wavelet coding, used for compressing the SST images. The results show that this coding is adequate for the job. |
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| Keywords: | stars: images - techniques: image processing - methods: wavelet analysis |
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