The effect of background subtraction of the interogram on the accuracy of the reconstructed wavefront in digital interferometry

Digital Interferometry에서 간섭무늬의 배경제거가 재생된 파면의 정확도에 미치는 영향

The imporance and technique of sudtrating the background intensity of the interferogram in digital interferometry is discussed. Also the way of determinating the polynomial and its degree to fit the wavefront is discussed.