Single-shot noninvasive imaging through scattering medium under white-light illumination
Dajiang Lu, Qi Xing, Meihua Liao, Guohai Situ, Xiang Peng, Wenqi He
Abstract
We experimentally investigate image reconstruction through a scattering medium under white-light illumination. To solve the inverse problem of noninvasive scattering imaging, a modified iterative algorithm is employed with an interpretable constraint on the optical transfer function (OTF). As a result, a sparse and real object can be retrieved whether it is illuminated with a narrowband or broadband light. Compared with the well-known speckle correlation technique (SCT), the proposed method requires no restrictions on the speckle autocorrelation and shows a potential advantage in scattering imaging.
Topics & Concepts
OpticsSpeckle patternScatteringInverse scattering problemNarrowbandAutocorrelationPoint spread functionOptical transfer functionSpeckle noiseInverse problemLight scatteringIterative reconstructionPhysicsPhase retrievalSpatial frequencyBroadbandForward scatterSpeckle imagingMaterials scienceIterative methodPtychographyImage processingComputer scienceFourier transformComputationScattering theoryOptical coherence tomographyImage qualityConstraint (computer-aided design)Fourier opticsCorrelation function (quantum field theory)Image restorationRandom lasers and scattering mediaMicrowave Imaging and Scattering AnalysisOptical Imaging and Spectroscopy Techniques