Table 1 Overview of most relevant prototypical hardware setups for capturing finger images
Capturing method | Authors | Year | Properties |
|---|---|---|---|
Line-scan camera | Mil’shtein et al. [14] | 2009 | Camera rotating around finger, distortion-free capturing |
3 industrial cameras | Wang et al. [15] | 2009 | Finger guidance, mosaicking |
Rotating camera | Noh et al. [16] | 2011 | 5 finger capturing, guidances for each finger |
Variable-focus liquid lens | Tsai et al. [17] | 2014 | External illumination, multi focal planes, fast capturing |
Low-cost equipment | Ramachandra et al. [18] | 2014 | LED illumination, box setup to environmental influences |
Industrial camera | Weissenfeld et al. [19] | 2018 | Multi-purpose device, bright-field illumination, 4 ×2 LEDs |