4D multi-frame spectral imaging method based on coding aperture

The invention discloses a 4D multi-frame spectral imaging method based on a coded aperture, which adopts a 4D spectral imaging system to tightly couple two different mechanisms of spectral imaging and three-dimensional imaging, performs cooperative imaging, and combines active coded aperture snapshot imaging with fringe projection profilometry (FPP) to obtain a high-resolution spectral imaging system. According to the invention, fringe projection used by 3D imaging and random code superposition projection required by spectral imaging are creatively used, and a camera path in a spectral detection and FPP system shares a light path, so that the system design is greatly simplified. The spectral imaging is realized by adopting an active CASSI scheme, and a mechanical motion structure and a mask are not included, so that quick sampling can be realized while the structure of the device is stable. 本发明公开了一种基于编码孔径的4D多帧光谱成像方法，采用采用4D光谱成像系统将光谱成像和三维成像两种不同的机制紧密耦合、协同成像，将主动式的编码孔径快照成像与条纹投影轮廓术（FPP）相结合，独创地将3D成像所用的条纹投影和光谱成像所需的随机