本文通过对彩色红外航空摄影的物理机制的研究,揭示了其影像光谱密度的指数变换与地物光谱反射比之间的线性关系,给出了实用的由彩色红外航空像片反演地物波谱的统计方法并作了相应实验,结果表明,用国产彩色红外航空像片HCJ-2可以反演6个以上波段的地物波谱。由于本统计方法易于使整幅航空像片的反演在计算机上实现,故它基本上具有实用、深入和高效的特点。 In this paper, we study the physical mechanism of color infrared aerial photography, reveal the linear relationship between the exponential transformation of image spectral density and the spectral reflectance of terrestrial objects, and present the practical inversion of terrestrial spectral images by color infrared aerial photographs The results show that the spectrum of more than 6 bands can be retrieved by the domestic HCIR-2 HCJ-2. Since this statistical method is easy to make the inversion of the entire aerial image on a computer, it is basically practical, in-depth and efficient.