Table 3 Comparison of the measurement hardware within included publications

Sun et al.[17]

Nippon Avionics TVS-500EXLVIRT IRT and RGB 0.3 MP

2 (G & IRT)

Ambient light

Casalino et al.[19]

Microsoft LifeCam HD 1080p RGB Webcam 2.1 MP

3 (R, G & B)

2 x 18 LED strips 12 V, 6 W, 0.5 A,120\(^{\circ }\) beam angle

Jiang et al. [23]

FLIR One Pro 1.5 MP IRT & 1.5 MP RGB

4 (R, G, B & IRT)

Ambient light

Negishi et al. [27]

Nippon Avionics TVS-500EXLVIRT IRT and RGB 0.3 MP

4 (R, G, B & IRT)

Ambient light

Gastel et al. [18]

3 x Allied Vision Manta G283B NIR Mono 2.8 MP

3 (3 x NIR Mono)

Exo Terra Night Heat Lamps