Core Concepts
Lensless imaging with rank-one projections enables cellular-scale observations using multicore fibers.
Abstract
Lensless imaging with multicore fibers allows endoscopic observations at cellular scale.
The technique collects rank-one projections of an interferometric matrix encoding image spectral content.
By utilizing spatial light modulators, the system can estimate images with log-linear scaling of sparsity levels.
The model subsumes previous sensing modalities like raster scanning with beamformed illumination.
The calibration of the system is robust and independent of sketching vectors.
Experimental results demonstrate the effectiveness of the imaging procedure.
Stats
"Each SROP is induced by the complex sketching vector shaping the incident light wavefront with a spatial light modulator (SLM), while the projected interferometric matrix collects up to O(Q2) image frequencies for a Q-core MCF."
"Collecting the measurements of M random SLM configurations allows us to estimate an image of interest if M and Q scale log-linearly with the image sparsity level."
"Experimental results made on an actual MCF system demonstrate the effectiveness of this imaging procedure on a benchmark image."
Quotes
"Lensless illumination single-pixel imaging with a multicore fiber (MCF) is a computational imaging technique that enables potential endoscopic observations of biological samples at cellular scale."
"The model subsumes previous sensing modalities, such as raster scanning (RS) imaging with beamformed illumination."