Kraken: enabling joint trajectory prediction by utilizing Mode Transformer and Greedy Mode Processing

• URL: http://arxiv.org/abs/2312.05144v1
• Date: Fri, 8 Dec 2023 16:24:05 GMT
• Title: Kraken: enabling joint trajectory prediction by utilizing Mode Transformer and Greedy Mode Processing
• Authors: Daniil S. Antonenko, Stepan Konev, Yuriy Biktairov, Boris Yangel
• Abstract summary: Kraken is a real-time trajectory prediction model capable of approximating pairwise interactions between actors. We evaluate Kraken on Motion Prediction challenge where it held the first place in the leaderboard and the second place in the Interaction Motion leaderboard in October 2021.
• Score: 1.1652135545484206
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate and reliable motion prediction is essential for safe urban autonomy. The most prominent motion prediction approaches are based on modeling the distribution of possible future trajectories of each actor in autonomous system's vicinity. These "independent" marginal predictions might be accurate enough to properly describe casual driving situations where the prediction target is not likely to interact with other actors. They are, however, inadequate for modeling interactive situations where the actors' future trajectories are likely to intersect. To mitigate this issue we propose Kraken -- a real-time trajectory prediction model capable of approximating pairwise interactions between the actors as well as producing accurate marginal predictions. Kraken relies on a simple Greedy Mode Processing technique allowing it to convert a factorized prediction for a pair of agents into a physically-plausible joint prediction. It also utilizes the Mode Transformer module to increase the diversity of predicted trajectories and make the joint prediction more informative. We evaluate Kraken on Waymo Motion Prediction challenge where it held the first place in the Interaction leaderboard and the second place in the Motion leaderboard in October 2021.

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