Table 2.
Expressions for the number of point sources, P, seen by a visual channel (pixel) viewing an extended target with distributed photophores, or with plankton causing stimulated bioluminescence (SB).
| type of point sources | point source density (per unit area or unit volume) | target area or volume | total number of point sources viewed by the target pixel |
|---|---|---|---|
| photophore array, square packing |  |
 |
 |
| photophore array, hexagonal packing |  |
 |
 |
| photophore array, random distribution |  |
 |
 |
| SB, side view of moving target |  |
 |
 |
| SB, side view of luminous wake |  |
 |
 |
| SB, approaching target |  |
 |
 |