From bowties to stop signs

In our last post, we promised to tell you about some ongoing work. Our current target backgrounds use pattern matching to find and precisely locate calibration points. Given our experiences with GaugeCam testers, we’re looking to simplify the installation and calibration process without sacrificing too much accuracy. Currently in testing is our “stop sign” calibration target. This feature is not yet live in the GRIME2 software, but we are installing these backgrounds in two locations for testing. At both locations we have HOBO water level loggers for comparison. At one location we will have an adjacent bowtie target installed. Our first location was installed yesterday, with deep gratitude to the landowner who is interested in this work. A photo and time-lapse of the installation are below!

Calibration target for image-based water level measurement
Stop sign calibration target installed in Bazile Creek watershed.
animation of image-based water level camera installation