The dynamics of multi-agent in nature have been largely studied for a long time to investigate how the aggregation of agents can move smoothly in complex environments without collision. The main insights can be summarized such that the aggregated dynamics of animals and particles can be explained by an individual's simple rules. In a similar vein, we conjecture that such simple rules for vehicle maneuvering can accommodate the fluid flow of traffic and reduce car accidents in highway and urban areas. In this paper, we first show the Reynolds' three rules are applicable to autonomous driving on a single lane. Moreover, we provide additional requirements and algorithms for multiple lanes. Based on these results, we show that the proposed nature-inspired driving maneuver can increase traffic flow by 1) mitigating shockwave at bottlenecks and 2) extending the perception range for better path planning, which requires the support of the vehicle autonomy and wireless communication, respectively. Finally, we prove the feasibility of our work with experiments using multiple UAVs.

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Inter-vehicle distance measuring technique is widely used for Driving Assistance System (DAS) such as Adaptive Cruise Control (ACC) and Forward Collision Warning (FCW) which are useful for safety enhancement as well as driving convenience. In this paper, we propose a new method for providing accurate longitudinal inter-vehicle distance measurement by using a monocular camera and a line laser. Experimental results show that the proposed method outperforms the disparity-based method and the error in distance measurement is low enough even in nighttime as much as daytime.

Marchiafava-Bignami disease (MBD) is a rare disorder of demyelination or necrosis of the corpus callosum. Mainly, MBD is associated with alcohol and malnutrition. We report a 60-year-old woman with no history of alcohol consumption or malnutrition who had MBD as a possible complication of normal pressure hydrocephalus (NPH). The patient presented with a 2-month history of progressive gait unsteadiness, urinary incontinence, and forgetfulness, for which the patient underwent ventriculoperitoneal shunt surgery with remarkable improvement. Magnetic resonance imaging (MRI) demonstrated hyperintensity in the body and splenium of corpus callosum when she was brought to the hospital again with rapid deterioration of her mental ststus. It might be postulated that cerebrospinal fluid (CSF) tumor necrosis factoralpha (TNF-α) might have contributed to the development of MBD although not measured in this patient, given that TNF-α, as a proinflammatory cytokine mediating demyelinating process have been found in be increased in the CSF of NPH.