High-solution multispectral imagery is attractive to various users and can be collected with a group of Charge-Coupled Device（CCD） cameras on board low-altitude Unmanned Airship（UA）.Due to imperfect system integration and inherent nature of UA

however

the registration of High-solution multispectral imageries from UA are subjected to several challenges.In this paper

a low-cost multispectral imaging system composing of four CCD cameras is described as well as its potential issues to registration operation are summarized.After that

Fast Fourier Transformation（FFT） induced multispectral imagery Cross-Correlation Matching technique is developed to automatically generate high-precision tie pints for overlapped UA imageries.Next

Homograph joint estimation based on the Least Square adjustment is described in detail to align multispectral imagery acquired at each exposal and "leveled" Thin Plate Spline（TPS） transformation is established to register multispectral imagery sequences as well.Finally

experiments of registering high-solution multispectral imageries collected from low-altitude unmanned airship are implemented with proposed approaches and valuable conclusions are conducted.