填空题 StroMotion is an image enhancement technique. It created stunning video 1footage display the evolution of an athlete's movement, technique, 2execution, and tactics over space and time. Television sports viewers areable to see a athletic movement, such as the line of a skier, unfold 3before their eyes by compounding video images into a frame-by-framesequence. The StroMotion concept is basing on stroboscoping, a means 4to analyze rapid movement so that a moving object is perceived as a seriesstatic images along the object's trajectory. StroMotion's special effects 5add particular value to winter sports. For example, the StroMotion techniqueapplying to an ice skater during a jump allows us to clearly see the technique 6and quality of its execution by highlighting the maneuver—the preparationphase, the elevation progression, the incline and straightness of the body, 7and the quality and speed of execution. Applied to the haft-pipe eventsin gravity-extreme sports such like snowboarding, skateboarding, and skiing, 8StroMotion allows viewers to fully appreciate the technique and the quality ofaerial maneuvers(spontaneity, elevation, landing)and highlights the different 9phases and their transitions. Roger Mosey, BBC Sport Director, said, "Innovationis very important to us in BBC Sport, and our coverage of the Olympics willcontinue to showcase both new technology in the coverage and greater choiceof coverage for people with access for digital services. " 10