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. 2021 Jul 24;26(7):076007. doi: 10.1117/1.JBO.26.7.076007

Table 1.

The sensor and camera optics specifications of the different spectral camera systems used. The last three parameters have been set during tissue analysis of the porcine organs. The specific bandwidths and spectral resolutions of the three snapshot mosaic cameras can be found in Table S1 in the Supplementary Material.

Camera Pushbroom Snapshot 4×4 Snapshot 5×5 Snapshot 3×3
Sensor CMOS CMOS CMOS CMOS
Sensor ADC (bits) 12 10 10 10
Sensor resolution (px) 1280×960 2048×1088 2048×1088 1280×1024
Output resolution (px) 640×480 2048×1024 2045×1080 1280×1024
Sensor size (mm) 4.8×3.6 11.3×6.0 11.3×6.0 6.8×5.5
Pixel size (μm) 3.75 5.5 5.5 5.3
Focal length 12 mm f/1.4 75 mm f/2.8 75 mm f/2.8 35 mm f/1.65
Spectral range (nm) 500 to 995 463 to 638 693 to 966 430 to 700
No. of bands 100 16(4×4) 25(5×5) 8+1(3×3)
Bandwidth (FWHM avg.) (nm) 5 15 15 40
Spectral resolution (nm) 5 8 to 12 8 to 12 27 to 41
Frame rate (fps) 60 20 20 12
Exposure time (ms) 0.25 50.0 50.0 83.3
WD (mm) 403 319 319 272