Ana Ramos, Patrícia Coutinho, João Ribeiro, Orlando Fernandes, Keith Davids, Isabel Mesquita
Increasing tactical complexity to enhance the synchronisation of collective behaviours: An action-research study throughout a competitive volleyball season
Journal of sports sciences
many recent advances multiple target tracking aim finding nearly optimal set trajectories within temporal window handle large space possible trajectory hypotheses typically reduced finite set form datadriven regular discretization work propose alternative formulation multitarget tracking minimization continuous energy contrary recent approaches focus designing energy corresponds complete representation problem rather one amenable global optimization besides image evidence energy function takes account physical constraints target dynamics mutual exclusion track persistence addition partial image evidence handled explicit occlusion reasoning different targets disambiguated appearance model nevertheless find strong local minima proposed nonconvex energy construct suitable optimization scheme alternates continuous conjugate gradient descent discrete transdimensional jump moves moves executed always reduce energy allow search escape weak minima explore much larger portion search space varying dimensionality demonstrate validity approach extensive quantitative evaluation several public data sets