Keywords:quantitative phase imaging, computational photography, optical profilometry
A complex amplitude imaging method based on a single-pixel camera architecture with a complex-amplitude representation is proposed. The complex-amplitude representation of the input and output signals enables us to perform the phase imaging of an object, that is, the profilometry in addition with the intensity imaging. The complex-amplitude representation of the optical coding masks and a coherent addition that is performed by an interference can directly represent the Hadamard patterns that have the positive and negative values. Furthermore, the residual area of the mask is used for the reference beam with the phase shifting. Therefore, the complex amplitude imaging system with the coaxial structure has high stability for external disturbances.