Table 1.
SegRoot | Adapted U-Net | faRIA | RootDetector | |
---|---|---|---|---|
Reference | Wang et al.15 | Smith et al.14 | Narisetti et al.13 | This study |
F1 Performance Evaluation | 0.6479 | 0.70 | 0.87 | 0.6044 |
Experimental setting | Greenhouse | Mesocosms | Greenhouse | Mesocosms and field |
Ecosystem | Agricultural | Agricultural | Agricultural | Fen peatlands |
Species | Soy | Chicory | Maize | Multispecies |
Rhizotron type and -dimensions | Minirhizotron, 64 mm inner diameter | Large Rhizobox | IPK plant phenotyping system 36 | Minirhizotron, 64 mm inner diameter |
Image sampling | Circular Scanner (CI-600) | Compact Camera (Olympus Tough TG 860) | Near-Infrared Monochrome camera (UI-5200SE-M-GL, IDS | Circular scanner (CI-600) |
Image dimension; resolution | 2550 × 2273 at 100 dpi | 3991 × 1842 | 2345 × 2665 | 2550 × 2273 at 100 dpi |
Root traits | Root pixels, root length | Root pixels | 75 Root traits | Root pixels, root length, root pixel turnover** |
Transferability | Possible* | Possible* | Possible* | Possible** |
*Possible according to source publication.
**Transfer to other ecosystems and in-depth retraining options as well as module for assessment of turnover in time series to be published soon.