phase recovery algorithms

Phase recovery algorithms are methods used to reconstruct an original signal’s phase information from measurements that only capture its intensity or magnitude, such as in optical imaging or signal processing. Since detectors often record only the strength of a wave, these algorithms mathematically infer the missing phase data essential for accurately reconstructing the original signal. They utilize iterative techniques, combining measurements with prior knowledge or constraints, to progressively estimate the phase. This process enables high-resolution imaging and precise signal reconstruction in various scientific and engineering applications.