Nina Pitre ’22

Validation of rotoscoping method for two-marker bones in the alligator forearm
Nina Pitre ’22, Biology and Psychology
Faculty Mentor: Dr. David Baier, Biology
XROMM methods “re-animate” 3D skeletal motion of living animals by aligning digital bone models to X-ray videos. Surgically implanted markers permit automatic alignment of bone models if three or more markers are used. However, one of our specimens only had two markers implanted. These bones could be automatically positioned and partially oriented using the two markers, but then required manual alignment to the X-ray images to orient about the axis passing between the two markers. Here, we validated the method by digitally removing a marker from a 3-marker bone and comparing 2-marker to 3-marker reconstructions of elbow motion.
Poster Presentation: Wednesday, April 27, 11 a.m. – 1 p.m.
