Yongzheng Liu, Jian Du, Qinyuning An, Fanchao Yang, Xin Zhang, Hongbo Li. Identification of bad pixels in shortwave infrared high-speed hyperspectral imager for spaceborne remote sensing[J]. Infrared and Laser Engineering, 2023, 52(2): 20220308
- Infrared and Laser Engineering
- Vol. 52, Issue 2, 20220308 (2023)
Fig. 1. Schematic diagram of the high-resolution hyperspectral imager
Fig. 2. LASIS image in shortwave infrared waveband
Fig. 3. Function diagram of the procedure of interferometer imaging hyperspectral data
Fig. 4. Technology flow chart of detecting bad pixels according our temples
Fig. 5. Gain design template
Fig. 6. Bad pixels in image on Gain4 and Gain5
Fig. 7. The frame rate response value of each pixel in the shortwave infrared image
Fig. 8. Outline drawing of 1 000×256 refrigerated large area array shortwave infrared detector
Fig. 9. Flow chart of bad pixel identification based on gain template and frame rate template
Fig. 10. Bright pixels and dark pixels recognition for high speed hyperspectral imager at different gains
Fig. 11. The influence of bad pixels on the short wave infrared spectral image of large aperture interference imaging
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Table 1. Comparing additional times of three bad pixels detection methods using in SWIR images
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