Dr. Shepherd is a Fulbright Scholar and an expert in mining biomarkers from medical imaging using advanced machine learning techniques. He has been continuously funded by the NIH since 2006. One focus of his work is how body shape measured using 3D optical methods is related to health and body composition and is recruiting over 1500 infants to the aged for this purpose. He directs the Artificial Intelligence Precision Health Institute; the Body Composition Exercise Physiology and Energy Metabolism CORE lab, and the Shepherd Research Lab. He was the 2017 President of the International Society for Clinical Densitometry, has chaired 10 international workshops on quantitative imaging and has over 200 peer-reviewed publications that have been referenced over 11,000 times.