基于文化基因算法的透过散射介质聚焦

Focusing Through Scattering Medium Based on Memetic Algorithm

人类通过双眼和光学仪器观察世界,但散射会严重扰乱光的传播,使透过散射介质实现聚焦和成像变得异常困难。通过反馈优化的方式对输入光进行相位调制,可以修正散射造成的波前畸变,从而在输出光场特定目标上实现聚焦。因此,提出了一种基于文化基因算法实现透过散射介质聚焦的方法。该方法结合全局搜索和局部搜索,将透过散射介质实现的聚焦抽象化为文化的进化过程。仿真和实验结果表明,相比基于遗传算法和粒子群优化算法的聚焦方法,本方法在聚焦效果和时间消耗上均具有明显优势,在光场调控领域具有良好的应用潜力。

Humans observe the world through their eyes and optical instruments, but scattering seriously disrupts light propagation, making focusing and imaging extremely difficult through the scattering medium. By modulating the phase of the input light through feedback optimization, the wavefront distortion caused by scattering can be corrected, allowing light to focus on a specific target in the output light field. Therefore, we propose a memetic algorithm-based method for focusing through a scattering medium. The method combines global search and local search, abstracting focusing through scattering medium into the process of cultural evolution. The simulation and experimental results show that, when compared to focusing methods based on genetic algorithm and particle swarm optimization algorithm, the method has obvious advantages in focusing effect and time consumption, and has good application potential in the field of light field control.