Narrowband image extraction for multispectral filter array

Mao-Hsiung Hung; Fanru Meng; Jishi Zheng

doi:10.1117/12.2557207

3 January 2020 Narrowband image extraction for multispectral filter array

Mao-Hsiung Hung, Fanru Meng, Jishi Zheng

Proceedings Volume 11373, Eleventh International Conference on Graphics and Image Processing (ICGIP 2019); 1137312 (2020) https://doi.org/10.1117/12.2557207
Event: Eleventh International Conference on Graphics and Image Processing, 2019, Hangzhou, China

Abstract

Narrowband image extraction is an essential preprocessing for multispectral imaging of filter array. This paper proposes an automatic method to extract narrowband images from a multispectral image. During offline phase, the method first employs horizontal and vertical projections to obtain initial positions of subsampling points. Then, integerpixel searching and half-pixel searching optimizes subsampling location. During on-line phase, 1:4 or 1:16 interpolation generates interpolation grids. Finally, four narrowband images are obtained according to the optimized subsampling points and interpolation grids. The experimental result indicates that this method effectively extracts narrowband images from originally mosaic images of multiple spectrums.

Citation Download Citation

Mao-Hsiung Hung, Fanru Meng, and Jishi Zheng "Narrowband image extraction for multispectral filter array", Proc. SPIE 11373, Eleventh International Conference on Graphics and Image Processing (ICGIP 2019), 1137312 (3 January 2020); https://doi.org/10.1117/12.2557207

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