A generic method for generating multispectral filter arrays

The technology of color filter arrays (CFA) has been widely used in the digital camera industry since it provides several advantages like low cost, exact registration, and strong robustness. The same motivations also drive the design of multi-spectral filter arrays (MSFA), in which more than three color bands are used (e.g. visible and infrared). Although considerable research has been reported to optimally reconstruct the full-color image using various interpolation algorithms, studies on the intrinsic properties of these filter arrays as well as the underlying design principles have been very limited. In this paper, we identify the properties a CFA should possess and extend the design philosophy to MSFA. Based on these discussions, we develop a generic MSFA generation method starting from a checkerboard pattern with both rectangular and hexagonal tessellations. By manipulating this pattern through a combination of decomposition and subsampling steps, we can generate MSFAs that satis...

• Type: Conference
• Year: 2004
• Where: ICIP
• Authors: Lidan Miao, Hairong Qi, Wesley E. Snyder
• Keywords: Color Filter Arrays, Filter Arrays, Generic Msfa Generation, ICIP 2004, Image Processing, Multi-spectral Filter Arrays, Various Interpolation Algorithms