Optical channel captures are deterministic indexed exposures. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Channels are optical exposure settings

There are 4 fields and 3 optical channels.

Nfields=4,Nchannels=3N_{\text{fields}}=4,\quad N_{\text{channels}}=3
Exposure scheduleFields and channels set capture and time budgets.dwelltotal4 fields12 captures5 s20 s

Captures multiply fields by channels

The capture count is 12. This is not spectral unmixing.

Ncaptures=43=12N_{\text{captures}}=4\cdot3=12
Exposure scheduleFields and channels set capture and time budgets.dwelltotal4 fields12 captures5 s20 s