Triple jump triple jump, although this has since been removed from the Olympic program and is rarely performed in competition today. The women's triple jump was introduced into the Atlanta Olympics in 1996. In Irish mythology the geal-ruith (triple jump), was an event contested in the ancient Irish Tailteann Games as early as 1829 BC. The athlete sprints down a runway to a takeoff mark, from which the triple jump is measured. The takeoff mark is commonly a physical piece of wood or similar material embedded in the runway, or a rectangle painted on the runway surface. In modern championships a strip
Step detection is the Potts model. It is given by the non-convex optimization problem The term formula_11 penalizes the number of jumps and the term formula_12 measures fidelity to data "x". The parameter γ > 0 controls the tradeoff between regularity and data fidelity. Since the minimizer formula_13 is piecewise constant the steps are given by the non-zero locations of the gradient formula_14. For formula_15 and formula_16 there are fast algorithms which give an exact solution of the Potts problem in formula_17. Step detection In statistics and signal processing, step detection (also known as step smoothing, step filtering, shift detection, jump detection