Standing triple jump Standing triple jump Standing triple jump is an athletics event based on the conventional triple jump with three jumping phases, but without an approach run-up. It is one of three standing variants of track and field jumping events, along with the standing high jump and standing long jump. While it is no longer an official competitive event, it is still used as a training exercise. The first phase is a hop from a stand still, which requires the athlete to take-off from a two-footed stand, split in mid air, and land on the preferred foot. The next phase is a
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