|Figure 1. Comparison showing the small size of an example microvideo camera.|
Industrial inspection software is available for analysis in real-time. If the idea works for pebbles, improvements, such as color and greater image resolution, might detect certain aquatic insects. (It seems likely to me that someone already tried this.)
Technical problems include finding a scratch-resistant window material, and synchronizing recordings if the signals are recorded in the field for later analysis.
|Figure 2. An idea of how microvideo cameras and light-emitting diodes might be mounted in a chamber set flush with the bed surface, to measure sediment.|
One source of cameras:
One Supercircuits Plaza
Leander, Texas 78641
One source of inspection software
Industrial Perception Systems, Inc.
2661 Clearview Road
Allison Park, Pennsylvania 15101