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基于RGB-D视频的地铁异物风险检测方法研究 被引量:4
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作者 刘伟铭 李静宁 杜逍睿 《铁道标准设计》 北大核心 2021年第1期110-115,共6页
地铁异物影响乘客出行安全和列车行车安全,随着自动驾驶时代的到来,采用先进技术检测地铁异物风险是保障地铁安全的重要途径。深度传感器广泛应用在目标检测等领域,弥补彩色信息不足。因此本文采集地铁列车门及屏蔽门间风险区域的RGB-D... 地铁异物影响乘客出行安全和列车行车安全,随着自动驾驶时代的到来,采用先进技术检测地铁异物风险是保障地铁安全的重要途径。深度传感器广泛应用在目标检测等领域,弥补彩色信息不足。因此本文采集地铁列车门及屏蔽门间风险区域的RGB-D视频,设计融合深度和颜色信息的异物风险检测算法。首先,提出RGB-D+背景建模(ViBe)算法的异物目标检测方法,通过新增深度模型和融合深度和颜色的像素模型,并在模型更新策略中增加深度判断条件,实现对异物目标的准确检测;然后通过基于RGB-D+最小外接矩形法的异物尺寸近似计算方法,完成异物风险判断。研究结果表明:提出的RGB-D+ViBe异物目标检测方法在不同光照环境下达到90%以上的准确率,鲁棒性和准确性明显高于基于单一图像的ViBe算法;同时异物尺寸方法检测精度达到1mm,能够准确判断异物风险。 展开更多
关键词 地铁站台 异物风险 地铁安全 目标检测 ViBe RGB-D视频
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PET瓶坯生产岗位质量风险分析和控制方案
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作者 居秋萍 《科技创新导报》 2018年第5期187-188,共2页
这本论文简述了PET瓶坯生产岗位质量风险分析的目的,岗位质量风险分析方案和实施,关注瓶坯生产过程中每个岗位4个方面的风险,进行风险分析和评价,制定各个岗位异物管控的关键控制措施,通过再评估再评价,确定将风险降低到可接受水平。
关键词 PET瓶坯 生产岗位 异物风险分析 风险评价控制
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Treatment of dyslipidemia in the elderly 被引量:1
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作者 Hong Shao Li-Quan Chen Jun Xu 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2011年第1期55-64,共10页
Dyshpidemia is a well-established risk factor for atherosclerosis. Treating dyslipidemia in elderly patients requires specific knowledge and understanding of common dyslipidemias and the relative safety of various pha... Dyshpidemia is a well-established risk factor for atherosclerosis. Treating dyslipidemia in elderly patients requires specific knowledge and understanding of common dyslipidemias and the relative safety of various pharmacologic agents in the presence of possible multiple comorbidities. Lifestyle modification remains the first step in the treatment of dyslipidemia; however, it can be difficult to sustain and achieve acceptable compliance in the elderly and it is best used in combination with drug therapy. Statins are widely accepted as the first-line therapy. Several recent studies have demonstrated that statins are safe and effective in the elderly. However, it is important to note that there is very limited data regarding the effects of dyslipidemia treatment on morbidity and mortality in patients over 85 years of age. In summary, the clinicians must recognize that the presence of dyslipidemia in the elderly poses substantial risk of coronary events and stroke. The available evidence has demonstrated that in most elderly patients who are at increased risk for cardiovascular morbidity and mortality, treatment of dyslipidemia with appropriate therapy reduces the risk, and when used carefully with close monitoring for safety, the treatment is generally well tolerated. With increasing life expectancy, it is critical for physicians to recognize the importance of detection and treatment of dyslipidemia in the elderly. 展开更多
关键词 DYSLIPIDEMIA ATHEROSCLEROSIS STATINS
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