Maggie Castle, far right, will lead a team of fellow first-year imaging science students on an imaging expedition to Boston Public Library the week after graduation. Castle won funding from the Chester F. Carlson Center for Imaging Science to image historic materials and artifacts at the library using the polynomial texture mapping system the students designed and built in the center’s yearlong Freshman Imaging Project. The imaging device illuminates a subject from different directions and angles. Computer software compiles the multiple shots into one interactive image to examine subtle surface textures and features. Castle’s team includes Kevin Dickey, far left, Scarlett Montanaro and Dan Goldberg.