Opto-Electronic Engineering, Volume. 51, Issue 7, 240134(2024)
Spectral reduction algorithm for echelle grating spectrometer based on least-squares image coordinate correction
Fig. 2. Two-dimensional spectrogram of the echelle grating spectrometer in the free spectrum region
Fig. 6. Schematic diagram of center of mass extraction. (a) Original image; (b) Addition of Gaussian noise; (c) Background noise reduction; (d) Edge extraction; (e) Connected domain analysis center of mass extraction; (f) OSTU dipolarization; (g) Gray scale weighted center of mass extraction
Fig. 7. Two-dimensional spectrogram of mercury-argon light source imaging
Fig. 8. Comparison of imaging spectrograms of mercury-argon light sources
Fig. 10. Two-dimensional spectrogram of mercury-argon light source imaging
Fig. 11. Common element wavelength coordinate correction residuals
Fig. 12. Final deviation after residual compensation of wavelength coordinates of common elements
|
|
|
|
|
|
|
Get Citation
Copy Citation Text
Yuxuan Ouyang, Xiao Fu, Fajie Duan, Kuan Wang, Jingxin Wu. Spectral reduction algorithm for echelle grating spectrometer based on least-squares image coordinate correction[J]. Opto-Electronic Engineering, 2024, 51(7): 240134
Category: Article
Received: Jun. 7, 2024
Accepted: Aug. 2, 2024
Published Online: Nov. 12, 2024
The Author Email: Xiao Fu (傅骁)