2016 IEEE Winter Conference on Applications of Computer Vision (WACV) 2016
DOI: 10.1109/wacv.2016.7477732
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Predicting wide receiver trajectories in American football

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Cited by 54 publications
(40 citation statements)
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“…However, if feature maps related to ARS are included, this problem could be resolved. Further, because animal trajectories might be affected by spatiotemporally changing landscape features that are both environmental (e.g., weather, wind, time of day, lunar rhythm; Baigas et al 2017) and social factors (e.g., the presence of congeners; Yoda et al 2011), IRL has the potential for increasing interpolation precision by incorporating these dynamically changing factors into the feature space (Lee and Kitani 2016). Ecologists now have access to various environmental data obtained from satellites (Running et al 2004, Neumann et al 2015 and drones (Turner 2014, Zhang et al 2016, Strandburg-Peshkin et al 2017, which could be incorporated as feature maps.…”
Section: Discussionmentioning
confidence: 99%
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“…However, if feature maps related to ARS are included, this problem could be resolved. Further, because animal trajectories might be affected by spatiotemporally changing landscape features that are both environmental (e.g., weather, wind, time of day, lunar rhythm; Baigas et al 2017) and social factors (e.g., the presence of congeners; Yoda et al 2011), IRL has the potential for increasing interpolation precision by incorporating these dynamically changing factors into the feature space (Lee and Kitani 2016). Ecologists now have access to various environmental data obtained from satellites (Running et al 2004, Neumann et al 2015 and drones (Turner 2014, Zhang et al 2016, Strandburg-Peshkin et al 2017, which could be incorporated as feature maps.…”
Section: Discussionmentioning
confidence: 99%
“…Ecologists now have access to various environmental data obtained from satellites (Running et al 2004, Neumann et al 2015 and drones (Turner 2014, Zhang et al 2016, Strandburg-Peshkin et al 2017, which could be incorporated as feature maps. Further, because animal trajectories might be affected by spatiotemporally changing landscape features that are both environmental (e.g., weather, wind, time of day, lunar rhythm; Baigas et al 2017) and social factors (e.g., the presence of congeners; Yoda et al 2011), IRL has the potential for increasing interpolation precision by incorporating these dynamically changing factors into the feature space (Lee and Kitani 2016). Because we extended the state space to three-dimensional grid cells, our interpolation method has much potential for considering dynamically changing factors.…”
Section: Discussionmentioning
confidence: 99%
“…The problem of trajectory prediction can be formulated as a reward-maximization problem in an IRL framework, and has been done so for American football player movements (rife with challenging interaction scenarios) [3]. It was shown that a player's path can be modeled as a Markov Decision Process (MDP) where the path reward is learned via maximum entropy IRL on a mixture of static hand-crafted and dynamic features.…”
Section: A Existing Methodsmentioning
confidence: 99%
“…an attractive force towards their goal position and a repulsive force for other people, enabling collision avoidance). Since then, many other kinds of approaches have formulated trajectory forecasting as a sequence-modeling regression problem, and powerful approaches such as Inverse Reinforcement Learning (IRL) [32], Gaussian Process Regression (GPR) [10,39,50], and Recurrent Neural Networks (RNNs) [1,33,49] have been applied with strong performance. However, IRL mostly relies on a unimodal assumption of interaction outcome [28,34]; GPR falls prey to long inference times, rendering it infeasible for robotic usecases; and standard RNN methods cannot handle multimodal data.…”
Section: Related Workmentioning
confidence: 99%