Rui Wang, Zhi Xu, Yuchao Chen, Zhenyu Jin, Yongyuan Xiang, Yu Fu, Kaifan Ji. Field Calibration of Multiband High Resolution Imaging System with New Vacuum Solar Telescope[J]. Acta Optica Sinica, 2018, 38(1): 0111002
- Acta Optica Sinica
- Vol. 38, Issue 1, 0111002 (2018)
Fig. 1. (a) NVST architectural section; (b) diagram of optical platform
Fig. 2. Schematic of optical path of NVST multiband high resolution imaging observation system
Fig. 3. Schematic of pinhole array aperture
Fig. 4. (a) Grayscale anti-image of pinhole array image obtained by Hα channel; (b) grayscale anti-image pinhole array obtained by TiO channel
Fig. 5. Residual error distribution of Hα channel pinhole array image after RST transformation field calibration of four parameters
Fig. 6. Changes of four parameters after RST transformation in de-rotation process. (a) Rotation actor; (b) scaling factor; (c) x-axis translation factor; (d) x-axis translation factor
Fig. 7. (a) Hα line center chromosphere image after RST transformation; (b) TiO synchronous frame image corresponding to figure 7(a); (c) Hα far line-wing photosphere image after RST transformation (656.28~656.30 nm); (d) TiO synchronous frame image corresponding to figure 7(c)
Fig. 8. Local correlation offset vector distribution of Hα far line-wing photosphere image after RST transformation compared with the corresponding TiO synchronous frame image
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Table 1. Mean values and standard deviations of four parameters variations
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