Abstract: n the past few years there has been a significant volume of research work carried out in the field of multispectral image acquisition. The most of focus is a type of multispectral image acquisition systems that usually requires multiple subsequent shots. Recently， an alternative approach for multispectral image acquisition has been proposed； based on an extension of the camera array, it produces more than three channels. This paper introduces the concept of multispectral camera array （MCA）， develops an eleven-shot multispectral image capturing system， consisting of twelve DH-HV1300FM cameras and eleven interference filters with different wavelengths. Combining with the advantages of multiple channels for multispectral camera array（MCA）， an algorithm to reconstruct the scene spectral reflectance is proposed. Finally the recovered spectral measurements are used to recover the continuous spectral reflectance for each scene point by using a linear model for spectral reflectance.

Key words: camera array, spectral reflectance, multi-spectral, filter