ptwg namespace
bad_image
definition: the image was unfocused, blurry, too small, or otherwise unsuitable for a confident annotation
bead
definition: plastic calibration target
bubble
definition: a bubble, i.e., enclosed air or another gas
detritus
definition: unidentified marine debris
fecal_pellet
definition: fecal pellet or excreted particle
other
definition: a ROI that cannot be annotated to just one identification, such as a mix of a living and non-living particle