【摘 要】
：
In this study,a multi-object tracking (MOT) scheme based on a light detection and ranging sensor was proposed to overcome imprecise velocity observations in object occlusion scenarios.By applying real-time velocity estimation,a modified unscented Kalman f
【机 构】
：
School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
论文部分内容阅读
In this study,a multi-object tracking (MOT) scheme based on a light detection and ranging sensor was proposed to overcome imprecise velocity observations in object occlusion scenarios.By applying real-time velocity estimation,a modified unscented Kalman filter (UKF) was proposed for the state estimation of a target object.The proposed method can reduce the calculation cost by obviating unscented transformations.Additionally,combined with the advantages of a two-reference-point selection scheme based on a center point and a corner point,a reference point switching approach was introduced to improve tracking accuracy and consistency.The state estimation capability of the proposed UKF was verified by comparing it with the standard UKF in single-target tracking simulations.Moreover,the performance of the proposed MOT system was evaluated using real traffic datasets.
其他文献
为全面贯彻落实教育部《高等学校思政建设指导纲要》精神,按照《教育部办公厅关于开展课程思政示范项目建设工作的通知》要求,结合延边大学土木工程专业课程类型的特点和育人要求,注重地方与民族区域高校特色,总体设计课程思政建设项目,从专业课程维度分析“课程思政”,研究与提炼蕴含“思政元素”的“触点”和“融点”,以多媒体和“互联网+”平台为核心的教育技术,入选课程思政示范项目建设,实践成效显著,为类似地方高校课程思政提供借鉴.
通过对建设工程设计方案审查工作现状的梳理分析,结合相关工作实践,总结了其中的不足.基于以上结果,提出了建设工程设计方案审查工作机制的优化方案,首先,通过重大项目绿色通道,对建设项目提前介入、模拟审查;其次,细化办事指南、改进工作流程,根据建设项目特点提供个性化服务;再者,强化规划的刚性,加强事后动态监管,实施全过程跟踪.目前,优化后的审查工作机制在实际工作中发挥了较好的效果,提升了工作效率、优化了营商环境,但仍然需要在后续工作中不断改进完善.
为了进一步适应高校土木工程专业教学实践的发展需要,对虚拟/增强现实(VR/AR)技术在土木工程教学实践中的应用进行探索.首先阐述了VR/AR技术在高等学校教学和实践中的应用现状,接着分析了当前土木工程传统教学实践方法中存在的若干问题,最后针对土木工程教学实践的问题现状,就VR/AR技术在土木工程教学实践中的应用创新进行探讨.结论指出:将VR/AR技术应用在土木工程教学实践中,能够更好地弥补传统教学实践手段中存在的诸多问题,为国内土木工程教学实践的发展和创新提供新的思路与方法.
课程设计与开发是职业院校人才培养质量提升的核心载体,贴近企业工作过程的课程设计是实现培养高技能、应用型人才的有效路径.以《建筑初步》课程设计与开发为例,以专业技能为本位,构建以培养核心职业素养为宗旨,以职业岗位典型工作任务为训练模块的课程体系,培养适应社会岗位需求的高技能、应用型建筑装饰工程技术人才.
2021年8月12日,上海市生物医药产业计量测试中心建设座谈会在上海市计量测试技术研究院召开.上海市市场监督管理局、上海推进科技创新中心建设办公室、上海市经信委生物医药产业处、上海医疗器械行业协会、上海联影等相关政府部门、行业检验检测机构及相关企业出席会议.
自然资源监测是各地自然资源部门日常管理中一项极端重要的工作,而传统的监测方法在高效性、便利性和准确性等方面还存在一定的问题,很难保证监测工作的体系化、监测成果的时效性.依托“互联网+”等技术,以太仓市为例,研究和探索利用实时监控视频、多源遥感、无人机等多种监测手段对自然资源进行动态监测的路径,进一步提高自然资源监测的工作效率,实现决策科学化、应用智能化.
Environmental perception is a key technology for autonomous driving.Owing to the limitations of a single sensor,multiple sensors are often used in practical applications.However,multi-sensor fusion faces some problems,such as the choice of sensors and fus
Human beings have been kept pursuing of higher ef-ficiency and better safety to move people and things around since thousands of years ago.In modern soci-ety,vehicles are therefore invented and utilized to boost the speed and enhance the safety.In recent
High-definition (HD) maps are key components that provide rich topologic and semantic information for decision-making in vehicle autonomous driving systems.A complete ground orthophoto is usually used as the base image to construct the HD map.The ground o
As an emerging visual task,vehicle re-identification refers to the identification of the same vehicle across multiple cameras.Herein,we propose a novel vehicle re-identification method that uses an improved ResNet-50 architecture and utilizes the topology