|
Water reduces spectral reflectance, drying of particles is important
|
[61, 64]
|
|
SVM model outperforms PLS-DA, ML
|
[60, 64]
|
|
Dark particles are harder to detect
|
[60, 65]
|
|
ID of smaller particles is hindered by spatial resolution
|
[56, 60, 61, 64]
|
|
Weathered polymers have degraded spectra as compared with pristine polymers
|
[55, 62]
|
|
Reference polymers should be more diverse, include weathering and polymer mixtures
|
[65]
|
|
Over 90% of particles > 1 mm positively identified
|
[58, 60]
|
|
Addition of extra “class” for background or non-polymer material helped classification
|
[56, 59, 60]
|
|
Glass fiber filter is a suitable background material
|
[54,55,56,57, 64, 65]
|
