(EN)
In a phase fold-back development method of the invention, a procedure that phase data is grouped first (S1), phase fold-back development of a group is carried out (S2), and the objective groups are merged (S3) is repeatedly used. While the phases fold-back development progresses, the group becomes large, and correspondingly information on the phase difference among groups increases. Therefore, the influence of phase data liable to the cause of fold-back development failure is gradually weakened, and the result is higher in robustness than conventional methods. Further, since the group which has once undergone fold-back development successively undergoes fold-back development in the new group formed by merging, the former group undergoes fold-back development repeatedly so that the phase matches those of other groups even if the phase is determined once. As a result, continuous failures of fold-back development can be prevented, the failures decrease compared with conventional methods, and the stability is improved.
(ZH) 在根据本发明的相位展开演化方法中，反复应用首先对相位数据分组(S1)，进行针对各组的相位展开演化(S2)，随后进行目标组的合并(S3)的各个步骤。随着展开演化处理的进行，组增加，并且关于组间的相差的信息增大。从而，往往是展开演化的失败原因的相位数据的影响逐渐降低，获得与常规方法相比，具有更高稳健性的结果。另外，曾经经历展开演化的组作为通过合并产生的新组继续经历展开演化。从而，即使相位曾经被确定，该组也经历多次展开演化，以便使相位与其它组的相位相符。从而，能够防止展开演化的失败的连续发生。与常规方法相比，展开演化的失败被减少，展开演化的稳定性被增大。
