Research progress on parameter-changed computational imaging techniques

Ptychographic iterative and Fourier ptychographic imaging techniques can enhance field of view FOV and resolution The parameter-changed computational imaging technique based on multi-disntance multi-height axial scanning and thin cylinder rotation can be used with phase retrieval algorithms to reconstruct the complexvalued fields of objects with high resolution These imaging techniques possess prominent advantages for enlarging FOV and resolution We review the recent research progress of the parameter-changed optical coherent diffraction imaging systems in the field of computational imaging As a kind of indirect imaging tools the multi-parameter imaging technique combines diffraction imaging with algorithms which can be used to realize the accurate multidimensional characterization of a complex-valued light field.