Rotational random extraction of Toeplitz matrix for ghost imaging

Zhengdong Cheng; Maosheng Sun; Yi Chen; Haikuan Chang; Yanyan Liu

doi:10.1117/12.2667775

6 March 2023 Rotational random extraction of Toeplitz matrix for ghost imaging

Zhengdong Cheng, Maosheng Sun, Yi Chen, Haikuan Chang, Yanyan Liu

Proceedings Volume 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022); 1255313 (2023) https://doi.org/10.1117/12.2667775
Event: 2022 4th International Conference on Optoelectronic Science and Materials (ICOSM2022), 2022, Henfei, China

Abstract

If Toeplitz matrix is used for compression-aware ghost imaging, the imaging quality will be very low. In order to solve the problem, a new experimental scheme for ghost imaging is proposed in this paper. The scheme first extracts the Toeplitz matrix elements randomly and sparsely using a revolving matrix, and then modulates the illumination light field. The sampling is performed by using the Toeplitz matrix as a fixed matrix and another measurement matrix as a revolving matrix. The revolving matrix rotates around its center at a constant angular velocity. The fixed Toeplitz matrix is superimposed with the revolving matrix to form the optical field modulation matrix. The results of simulation experiments show that light field modulation scheme of the rotational random extraction of Toeplitz matrix can modulate the light field with more randomness. The use of this scheme in ghost imaging experiments results in high quality images with low distortion.

Citation Download Citation

Zhengdong Cheng, Maosheng Sun, Yi Chen, Haikuan Chang, and Yanyan Liu "Rotational random extraction of Toeplitz matrix for ghost imaging", Proc. SPIE 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022), 1255313 (6 March 2023); https://doi.org/10.1117/12.2667775

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