Full color ghost imaging by using both time and code division multiplexing technologies
Le Wang(王乐)1,†, Hui Guo(郭辉)1,2, and Shengmei Zhao(赵生妹)1,‡
1 Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications(NUPT), Nanjing 210003, China; 2 College of Information Engineering, Fuyang Normal University, Fuyang 236037, China
Abstract We propose a new full color ghost imaging scheme using both time and code division multiplexing technologies. In the scheme, the speckle patterns of three colors (red, green and blue) are modulated with different time slots and codes. The light intensity is sampled by one bucket detector. Then based on the modulated time slots and codes, we can effectively and simultaneously extract three detection component signals corresponding to three color components of objects from the sampling signal of the bucket detector. Finally, three component images resulting from the three component detection signals can be synthesized into a full color image. The experimental results verify the feasibility of our scheme under the limit of the number of time slots and codes. Moreover, our scheme reduces the number of bucket detectors and can realize high quality imaging even in a noisy environment.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 62001249 and 61871234), the NUPTSF (Grant No. NY220004), and the Scientific Research Project of College of Information Engineering, Fuyang Normal University (Grant No. FXG2021ZZ02).
Corresponding Authors:
Le Wang, Shengmei Zhao
E-mail: njwanglele@163.com;zhaosm@njupt.edu.cn
Cite this article:
Le Wang(王乐), Hui Guo(郭辉), and Shengmei Zhao(赵生妹) Full color ghost imaging by using both time and code division multiplexing technologies 2022 Chin. Phys. B 31 114202
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