TY - RPRT TI - Phase retrieval with a three-frame phase-shifting algorithm with an unknown phase shift. AU - Cho Jui Tay AU - Chenggen Quan AU - Lujie Chen PY - 2005 DO - 10.1364/ao.44.001401 UR - https://pubmed.ncbi.nlm.nih.gov/15796238/ ID - 15796238 ER -