Hybrid-resolution multispectral imaging using color filter array.

Hybrid-resolution multispectral imaging is a framework to acquire multispectral images through a reconstruction procedure using two types of measurement data with different spatial and spectral resolutions. In this paper, we propose a new method for such a framework on the basis of a full-resolution RGB image and the data obtained from an image sensor with a multispectral filter array (MSFA). In the proposed method, a small region of each image band is reconstructed as a linear combination of RGB images, where the weighting coefficients are determined using MSFA data. The effectiveness of the proposed approach is shown by simulations using spectral images of natural scenes.

[1]  Yasuyuki Matsushita,et al.  High-resolution hyperspectral imaging via matrix factorization , 2011, CVPR 2011.

[2]  Kinjiro Amano,et al.  Information limits on neural identification of colored surfaces in natural scenes , 2004, Visual Neuroscience.

[3]  Oili Kohonen.  Multiresolution-Based Pansharpening in Spectral Color Images , 2010, CGIV/MCS.

[4]  Masahiro Yamaguchi,et al.  Maximum a posteriori estimation of spectral reflectance from color image and multipoint spectral measurements. , 2007, Applied optics.

[5]  Masahiro Yamaguchi,et al.  Piecewise Wiener estimation for reconstruction of spectral reflectance image by multipoint spectral measurements. , 2009, Applied optics.

[6]  Liang Gao,et al.  Snapshot Image Mapping Spectrometer (IMS) with high sampling density for hyperspectral microscopy , 2010, Optics express.

[7]  Hans Brettel,et al.  Multispectral color image capture using a liquid crystal tunable filter , 2002 .

[8]  Masahiro Yamaguchi,et al.  Class-based spectral reconstruction based on unmixing of low-resolution spectral information , 2011 .

[9]  Hideaki Haneishi,et al.  Beyond Red-Green-Blue (RGB) : Spectrum-Based Color Imaging Technology , 2008 .

[10]  T. Aach,et al.  A Color Filter Array Based Multispectral Camera , 2006 .

[11]  W K Pratt,et al.  Spectral estimation techniques for the spectral calibration of a color image scanner. , 1976, Applied optics.

[12]  J. Parkkinen,et al.  Spectral vision system for measuring color images , 1999 .

[13]  Masatoshi Okutomi,et al.  Multispectral demosaicking using adaptive kernel upsampling , 2011, 2011 18th IEEE International Conference on Image Processing.

[14]  H Haneishi,et al.  System design for accurately estimating the spectral reflectance of art paintings. , 2000, Applied optics.

[15]  Jon Yngve Hardeberg,et al.  Spatial arrangement of color filter array for multispectral image acquisition , 2011, Electronic Imaging.

[16]  Roy S. Berns,et al.  High-Resolution Multi-Spectral Image Archives: A Hybrid Approach , 1998, CIC.

[17]  Bernhard Hill.  Color capture, color management, and the problem of metamerism: does multispectral imaging offer the solution? , 1999, Electronic Imaging.