Velocity Modulation in CIS vs CCD Flatbed Scanners

Comparative analysis of contact image sensor (CIS) focal falloff versus three-line CCD arrays during high-speed manual paper translation.

A technical report recording laboratory trials comparing Contact Image Sensor (CIS) systems with three-line Charge-Coupled Device (CCD) arrays. Notes how mechanical friction applied during optical traversal introduces unpredictable phase shearing across the RGB color channels.