Phase retrieval technique using the directly measured intensity distribution to recover phase information and reconstruct the wave function is an important area of optics and image processing.Taking advantage of the existing phase retrieval based on transport equation of intensity,the light propagation model consistent with the principle of general camera images in natural light conditions is established,the corresponding optical data collection platform is designed and a phase retrieval method in this new model is derived.Real experimental results verify that this new phase retrieval method is reasonable and correct.The application of traditional phase retrieval algorithm on transport equation of intensity is extended to the holographic display and other macro-areas.