US Patent drawing
Detailed Description
“An apparatus and a method are provided for capturing and analyzing video images of sediment from the bottom of a body of water such as a river or sea. The apparatus includes a video imager with a close-up focus of lens adapted to collect images of sediment at the bottom of the body of water. A waterproof housing surrounds the video imager. The video images are analyzed using any appropriate algorithm to determine grain size.” US Patent #6,680,795 - Chezar and Rubin, USGS, Jan. 20, 2004. United States Patent
Sources/Usage
Public Domain.
