Fig. 8
From: Fast moving table tennis ball tracking algorithm based on graph neural network
The correspondence between trajectory \(T_{u}\) and the probabilistic graph \(G^{p}\) (Red color represents nodes v and edges e with \(p(v) = 1\) or \(p(e) = 1\), while blue color represents nodes and edges with p(v) =0 or \(p(e) = 0\).). Those nodes and edges marked red are part of the trajectory, while the blue nodes and edges are not.
