In a complex road traffic scene, illegal lane intrusion of pedestrians or cyclists constitutes one of the main safety challenges in autonomous driving application. In this paper, we propose a novel object-level phase space reconstruction network (PSRNet) for motion time series classification, aiming to recognize lane intrusion actions that occur 150m ahead through a monocular camera fixed on moving vehicle. In the PSRNet, the movement of pedestrians and cyclists, specifically viewed as an observable object-level dynamic process, can be reconstructed as trajectories of state vectors in a latent phase space and further characterized by a learnable Lyapunov exponent-like classifier that indicates discrimination in terms of average exponential divergence of state trajectories. Additionally, in order to first transform video inputs into one-dimensional motion time series of each object, a lane width normalization based on visual object tracking-by-detection is presented. Extensive experiments are conducted on the THU-IntrudBehavior dataset collected from real urban roads. The results show that our PSRNet could reach the best accuracy of 98.0%, which remarkably exceeds existing action recognition approaches by more than 30%.

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Under the background of the new era, performing arts organizations have become a cornerstone force in promoting the high-quality development of China’s culture. “How to explore the development models and general rules that promote internal and external collaborative management within organizations?” and “How to achieve dynamic balance within organizations with diverse collaborative models?” These are all crucial questions that managers of performing arts organizations should consider in this era. Based on positioning theory and the logical perspective of organizational structuring functional types, this article proposes a “three-step” development strategy for the internal and external collaborative management of performing arts organizations from the value logic of arts management and the research perspective of history. The article also establishes an evaluation system for the internal and external collaborative management of performing arts organizations using the DEA method and explores the full-process management architecture of integrated collaboration within and outside performing arts organizations. The aim is to provide theoretical support for the collaborative innovation and high-quality development of performing arts organization management.