GROUPING LOOK-UP TABLE BASED HIGH-FREQUENCY PHASE DECODING METHOD AND APPARATUS AND ELECTRONIC DEVICE

摘要

A grouping look-up table based high-frequency phase decoding method and apparatus and an electronic device. The present invention relates to the technical field of three-dimensional reconstruction. A first projection pattern sequence and a second projection pattern sequence are respectively collected (201); the first projection pattern sequence and the second projection pattern sequence are grouped to obtain a plurality of pattern sequence groups (203); then, on the basis of a preconfigured phase look-up table, the phase of the first projection pattern sequence in each pattern sequence group is calculated as a reference phase, and the phase of the second projection pattern sequence in each pattern sequence group is calculated as a wrapped phase (205); then, the wrapped phase is unwrapped to obtain an absolute phase corresponding to each pattern sequence group (207); and finally, the absolute phases of all the pattern sequence groups are averaged to obtain a target phase value (209). The method can reduce the influence of white noise, thereby reducing the errors caused by phase jump.