To solve the problem of pixel coordinate mismatch and effective pixel missing caused by pixel size difference and phase error between camera and projector, an improved wrapping phase-coordinate mapping method based on virtual field of view is proposed. Firstly, the fringe phase under different overlapping field of view is analyzed to determine the optimal projection mode. Secondly, two sets of horizontal and vertical fringes with high and low frequencies are designed, and the low frequency phase extremum is extracted to calculate the virtual projection field of view. The high frequency period numbered the real and virtual field of view step by step to realize the coarse matching between the small field of view. Finally, by using the improved wrapping phase coordinate mapping method and the criterion of phase difference threshold, the projection pixel coordinates are numbered to obtain the accurate mapping relationship between pixels. Experimental results show that the enveloping phase root mean square error in the same pixel interval is reduced by 78. 6% compared with the continuous phase. In planar and complex surface experiments, the number of effective pixels increases by 9. 21 times and 9. 43 times compared with traditional matching. The proportion of pixel mismatched coordinates decreases from 80. 55% and 59. 4% of traditional phase matching to 14. 26% and 12. 56% . It provides a feasible solution for pixel matching with the same name in adaptive fringe measurement technology.