To address the problems,like local deformation and concentrated distribution of fringes,or even overlap and interference between the fringes in the case that the pitch of the projective fringes is small and the variation range of the object surface normal direction is large,a new algorithm for the generation of non-uniform projective fringe pattern is proposed.The uniform fringe pattern is projected to the measured object,and the phase gradient of local fringe pattern in the picture captured by the camera i...