Swimmer’s Head Detection Based on a Contrario and Scaled Composite JTC Approaches

Figure 15

Localization of the region of interest. (a) Difference image decomposed into blocs and thresholded. The rectangle represents the region of interest centered according to the lane width, starting with the first bloc corresponding to the swimmer motion. (b) Projection of the rectangle on the original image. Swimming Championships in Limoges, France, April 2015.