clip1 = imagesource("X:\path\to\first\image\sequence\name_%03d.png", end = 999, fps = 60)
clip2 = imagesource("X:\path\to\second\image\sequence\name_%03d.png", end = 999, fps = 60)

clip12 = separatefields(clip1)
clip22 = separatefields(clip2)

clip13 = selecteven(clip12)
clip23 = selectodd(clip22)

clip3 = interleave(clip13, clip23)

clip4 = assumefieldbased(clip3)

weave(clip4)