2 RingFinder is a Windows-based computer program that uses operator-supervised image analysis to rapidly identify and measure tree rings. High-resolution images are obtained by scanning wood samples on ordinary office flatbed scanners. The system identifies ring boundaries and measures ring widths semiautomatically, but requires control and confirmation by a trained dendrochronologist or technician. Ring widths are corrected to account for variations in geometrical orientation of ring boundaries. The operator visually inspects and edits the results, and can graphically adjust several search parameters to improve the ability of the program to find and measure rings, and to eliminate the detection of spurious rings. 2009-12-02T13:00:00-07:00 414 Paul Sheppard PhD Graduate of LTRR, Currently instructor at Pima Community College Dr. Alex McCord 2009-12-02T12:00:00-07:00 2009-10-29T13:33:38-07:00 1