Imaging with Local Speckle Intensity Correlations: Theory and Practice

Recent advances in computational imaging have significantly expanded our ability to image through scattering layers such as biological tissues by exploiting the auto-correlation properties of captured speckle intensity patterns. However, most experimental demonstrations this capability focus on far-field setting, where obscured light sources are very far from layer. By contrast, medical applications fluorescent operate near-field inside We provide a theoretical and study similarities differences between two settings, highlighting increased challenges posed setting. then draw insights analysis develop new algorithm for that is tailored setting taking advantage unique patterns formed under their local support. present advantages perform real experiments both configurations, showing an order-of magnitude expansion range density can be recovered.