Joint iteration edge detection for pseudo-thermal ghost imaging

Edge detection has been widely applied and plays an important role in security and medical diagnosis. The existing edge detection based on ghost imaging mainly focuses on the computational ghost imaging using space light modulation equipment, but there is little research on the edge detection of pseudo-thermal ghost imaging, which also has great application prospect in remote sensing and three-dimensional imaging. Hence, in this paper, we have proposed and demonstrated a joint iteration edge detection for pseudo-thermal ghost imaging method. It makes up for the deficiency that the existing edge detection method based on ghost imaging can only be used to calculate ghost imaging of space light modulation equipment, but can not be applied to ghost imaging of pseudo-thermal light. Experiments verify that the proposed method can obtain higher imaging quality and edge detection quality for transmitted, reflected, and three-dimensional target objects in less measurement time. This method has great application prospect in feature extraction and target recognition.