Phase retrieval utilizing object asymmetry
Physics
Asymmetry in the object is used as a tool to eliminate the twin-image problem. By carrying out the simulations as well as the experiment, the validity of the proposed scheme has been proven. The proposed method only requires calculating the object support information. For most of the objects, the support information can be retrieved from the object autocorrelation itself without requiring additional measurements.
Ref: Surya Kumar Gautam, Rakesh Kumar Singh, C. S. Narayanamurthy, and Dinesh N. Naik “Single-shot and twin-image free unique phase retrieval using an aspect of autocorrelation that considers the object asymmetry” JOSA A , 37, 1826-1831 (2020).