Laser & Optoelectronics Progress, Volume. 58, Issue 10, 1011025(2021)
Computational Ghost Imaging Based on Chromatic LED Array with Special RGB Arrangement
Low quality of images is a critical problem that inhibits the application of computational ghost imaging (CGI) technology. Therefore, a special RGB (Red, Green, Blue) arrangement is designed for the chromatic light-emitting diode (LED) array of the CGI system in this study. First, a 64×64 chromatic LED array is independently developed to provide structural lighting for the CGI system. Then, the chips on the LED array are arranged according to a designed basket-weave arrangement. Finally, considering the physical structure of the chromatic LED array, an interpolation algorithm is proposed for sampled images. Experiment results show that the root mean square error (RMSE) of the basket-weave sampling is reduced by 4.6%, compared with Cartesian sampling and it has better performance in storing high-frequency information of chromatic images. In addition, compared with the bilinear and bicubic interpolation algorithms, the average RMSE of the algorithm is reduced by 2.0% and 6.4%, respectively.
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Hongxu Huang, Lijing Li, Mingjie Sun. Computational Ghost Imaging Based on Chromatic LED Array with Special RGB Arrangement[J]. Laser & Optoelectronics Progress, 2021, 58(10): 1011025
Category: Imaging Systems
Received: Jan. 20, 2021
Accepted: Mar. 5, 2021
Published Online: May. 28, 2021
The Author Email: Sun Mingjie (mingjie.sun@buaa.edu.cn)