期刊
IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING
卷 3, 期 4, 页码 982-995出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCI.2017.2691553
关键词
Illumination; multispectral filter array (MSFA); multispectral image demosaicing; pseudo-panchromatic image (PPI); spatial correlation; spectral correlation
资金
- IrDIVE platform [ANR-11-EQPX-23]
Single-sensor color cameras, which classically use a color filter array to sample RGB channels, have recently been extended to the multispectral domain. To sample more than three wavelength bands, such systems use a multispectral filter array that provides a raw image in which a single channel value is available at each pixel. A demosaicing procedure is then needed to estimate a fully defined multispectral image. In this paper, we review multispectral demosaicing methods and propose a new one based on the pseudo-panchromatic image (PPI). Pixel values in the PPI are computed as the average spectral values. Experimental results show that our method provides estimated images of better quality than classical ones.
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