Imaging through scattering media with intensity modulated incoherent sources

Yifu Hu, Xin Jin, Kaiyun Wei, Qionghai Dai

Abstract: Imaging through scattering media is a significant challenge in computational imaging. Recently, a breakthrough technique based on speckle scanning was proposed with outstanding imaging performance. However, the dense angular scanning of the incident laser beam leads to a lengthy scanning process. In this paper, we propose a method based on compressive sensing (CS) to accelerate the data acquisition process. A new imaging system is proposed which adopts mutually incoherent laser beams as light sources and the intensity of each beam is modulated to perform CS measurement. High-resolution fluctuation of the total fluorescence can be well reconstructed from CS measurements with the learned dictionary as basis function. Experimental results show that the proposed method can reduce nearly 70 percent of the data acquisition complexity without impairing the imaging quality.