Computer Vision in Sports by Thomas B. Moeslund, Graham Thomas, Adrian Hilton (eds.)

By Thomas B. Moeslund, Graham Thomas, Adrian Hilton (eds.)

The first e-book of its style dedicated to this subject, this accomplished text/reference provides state of the art learn and reports present demanding situations within the software of computing device imaginative and prescient to difficulties in activities. beginning with a close advent to using laptop imaginative and prescient around the whole life-cycle of a activities occasion, the textual content then progresses to ascertain state of the art options for monitoring the ball, acquiring the whereabouts and pose of the avid gamers, and picking the game being performed from video pictures. The paintings concludes via investigating a variety of structures for the automated research and class of activities play. The insights supplied via this pioneering assortment might be of significant curiosity to researchers and practitioners inquisitive about machine imaginative and prescient, activities research and media production.

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By Thomas B. Moeslund, Graham Thomas, Adrian Hilton (eds.)

The first e-book of its style dedicated to this subject, this accomplished text/reference provides state of the art learn and reports present demanding situations within the software of computing device imaginative and prescient to difficulties in activities. beginning with a close advent to using laptop imaginative and prescient around the whole life-cycle of a activities occasion, the textual content then progresses to ascertain state of the art options for monitoring the ball, acquiring the whereabouts and pose of the avid gamers, and picking the game being performed from video pictures. The paintings concludes via investigating a variety of structures for the automated research and class of activities play. The insights supplied via this pioneering assortment might be of significant curiosity to researchers and practitioners inquisitive about machine imaginative and prescient, activities research and media production.

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3 we show the sensitivity of the proposed algorithm to parameters using test set 1. It is evident from the table that the proposed algorithm is not sensitive to small changes of most parameters. However, when the parameter for determining the relative quality of two paths, α, varies over a large range, paths can be inappropriately merged or broken, severely degrading track initiation/termination and event detection. We can also see that the proposed method is sensitive to the increase of the tracklet threshold m th .

Param. 2 candidates very quickly. 6 candidates are evaluated. 7 iterations for model optimisation to converge. 7 ≈ 40. On the other hand, according to Eq. 15), at least 8161 models are needed in RDA. The estimation of mixture parameters of the likelihood function in RDA is also time-consuming. 0G computer running Linux, and overhead of disk I/O was included. Both algorithms were implemented in C++. 3 we show the sensitivity of the proposed algorithm to parameters using test set 1. It is evident from the table that the proposed algorithm is not sensitive to small changes of most parameters.

The fitted model is then optimised recursively using candidates in the sliding window that are consistent with it. This process is repeated until convergence, forming a “tracklet”. 2. As the sliding window moves, a sequence of tracklets is generated. These tracklets may have originated from tennis balls or from clutter. We formulate tracklet level association as a shortest path problem. We construct a weighted and directed graph, where each node is a tracklet, and the edge weight between two nodes is defined according to the “compatibility” of the two tracklets.

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