Fig. 7
From: The effect of multispectral image fusion enhancement on human efficiency
Ideal observer contrast energy thresholds over sets of single-band and fused imagery. Blocks on the main diagonal represent ideal performance using single-band imagery captured as labeled (i.e., VIS-Hi Res: visible camera with high resolution, VIS-Low Res: visible camera with low resolution, Night Vision, SWIR: short-wave infrared, HB Thermal: long-wave infrared image digitally inverted for hot-black imagery, HW Thermal: long-wave infrared hot-white imagery). All other off-diagonal blocks demonstrate ideal performance using fused imagery from the two designated components over the algorithms labeled on the bottommost axis (average (A), Laplacian (L), maximum (Mx), minimum (Mn), PCA (P), adjusted PCA (aP), and wavelet (W)). Off-diagonal blocks highlighted in green and diagonal blocks highlighted in black represent the conditions tested in the current paper’s experimental setup. Red blocks indicate conditions where reliable ideal observer thresholds could not be obtained