Model notes & references
Row r of H is sampled at tr = t0 + (r/H) × readout. Blade angle φ = ωt with ω = rpm × 2π/60. Rotation during the scan = rpm × 360/60 × readout.
Global mode samples every row at t0: exposure is simultaneous, even though the stored charge may still be read out row by row afterwards.
Exposure is treated as instantaneous, so motion blur is excluded. On screen, one scan is time-stretched to 2.2 s. Propeller, sky and colours are procedural illustrations, not a specific camera or aircraft. Readout times vary by device; check a camera's published figure before quoting one.
Original code and art by explainer tools. Schematic teaching model.