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Relationship between objective and subjective refraction measurements in patients with mild keratoconus
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作者 Masoud Khorrami-Nejad Ahmed Kamil Dakhil +3 位作者 Hesam Hashemian Masoud Sadeghi Reza Yousefi Foroozan Narooie-Noori 《International Journal of Ophthalmology(English edition)》 2025年第3期398-403,共6页
AIM:To compare objective dry retinoscopy and subjective refraction measurements in patients with mild keratoconus(KCN)and quantify any differences.METHODS:This cross-sectional study was done on 68 eyes of 68 patients ... AIM:To compare objective dry retinoscopy and subjective refraction measurements in patients with mild keratoconus(KCN)and quantify any differences.METHODS:This cross-sectional study was done on 68 eyes of 68 patients diagnosed with mild KCN.Objective dry retinoscopy using autorefractometer and subjective refraction measurements were performed.Sphere,cylinder,J0,J45,and spherical equivalent values were compared between the two techniques.RESULTS:The mean age of 68 patients with mild KCN was 21.32±5.03y(12–35y).There were 37(54.4%)males.Objective refraction yielded significantly more myopic sphere(-1.44 D vs-0.57 D),higher cylinder magnitude(-2.24 D vs-1.48 D),and more myopic spherical equivalent(-2.56 D vs-1.31 D)compared to subjective refraction(all P<0.05).The mean differences were-0.87 D for sphere,-0.76 D for cylinder,and-1.25 D for spherical equivalent.No significant differences were found for J0 and J45 values,indicating agreement in astigmatism axis(P>0.05).CONCLUSION:In patients with mild KCN,objective dry retinoscopy overestimates the degree of myopia and astigmatism compared to subjective refraction.The irregular cornea in KCN likely impacts objective measurements.Subjective refraction allows compensation for irregularity,providing a more accurate correction.When determining refractive targets,the tendency of objective methods to overcorrect should be considered. 展开更多
关键词 KERATOCONUS objective refraction subjective refraction
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Objective and subjective measures for sleep disorders 被引量:2
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作者 张琳 赵忠新 《Neuroscience Bulletin》 SCIE CAS CSCD 2007年第4期236-240,共5页
Subjective and objective measures of sleep structure or quality could help to characterize the chronic sleep disturbances, with relation to patients' risk factor profiles and co-morbidities. Studies have shown that d... Subjective and objective measures of sleep structure or quality could help to characterize the chronic sleep disturbances, with relation to patients' risk factor profiles and co-morbidities. Studies have shown that discrepancies can occur between subjective data regarding sleep disturbances and the impact of insomnia and objective assays, and surrogate markers of sleep and sleep disturbances. Both objective and subjective measures should be incorporated into clinic studies. It seems likely that sleep quality is represented by a combination of more than one subjective sleep parameter. Objective and subjective assessments of sleep quality may relate to different parameters. Future studies incorporated both subjective and objective measures could help to address the sleep disorders. 展开更多
关键词 objective measures subjective measures sleep disorders
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Perceptual Quality Assessment of Omnidirectional Images:Subjective Experiment and Objective Model Evaluation 被引量:1
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作者 DUAN Huiyu ZHAI Guangtao +3 位作者 MIN Xiongkuo ZHU Yucheng FANG Yi YANG Xiaokang 《ZTE Communications》 2019年第1期38-47,共10页
Virtual reality(VR) environment can provide immersive experience to viewers.Under the VR environment, providing a good quality of experience is extremely important.Therefore, in this paper, we present an image quality... Virtual reality(VR) environment can provide immersive experience to viewers.Under the VR environment, providing a good quality of experience is extremely important.Therefore, in this paper, we present an image quality assessment(IQA) study on omnidirectional images. We first build an omnidirectional IQA(OIQA) database, including 16 source images with their corresponding 320 distorted images. We add four commonly encountered distortions. These distortions are JPEG compression, JPEG2000 compression, Gaussian blur, and Gaussian noise. Then we conduct a subjective quality evaluation study in the VR environment based on the OIQA database. Considering that visual attention is more important in VR environment, head and eye movement data are also tracked and collected during the quality rating experiments. The 16 raw and their corresponding distorted images,subjective quality assessment scores, and the head-orientation data and eye-gaze data together constitute the OIQA database. Based on the OIQA database, we test some state-of-the-art full-reference IQA(FR-IQA) measures on equirectangular format or cubic formatomnidirectional images. The results show that applying FR-IQA metrics on cubic format omnidirectional images could improve their performance. The performance of some FR-IQA metrics combining the saliency weight of three different types are also tested based on our database. Some new phenomena different from traditional IQA are observed. 展开更多
关键词 perceptual quality assessment OMNIDIRECTIONAL IMAGES subjective EXPERIMENT objective model evaluation VISUAL SALIENCY
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Influence of Subjective Knowledge, Objective Knowledge and Health Consciousness on Olive Oil Consumption—A Case Study
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作者 Adriana Gámbaro Ana C. Ellis Víctor Prieto 《Food and Nutrition Sciences》 2013年第4期445-453,共9页
Unlike the case in Mediterranean countries, where olive oil consumption is driven by habit or tradition, in a population where olive oil consumption rates are considerably low, it appears reasonable to suppose that th... Unlike the case in Mediterranean countries, where olive oil consumption is driven by habit or tradition, in a population where olive oil consumption rates are considerably low, it appears reasonable to suppose that the initial decision to buy a fairly expensive product—as is the case with olive oil in the Uruguayan market—may result from an individual’s overall interest in health-related issues and/or their acquaintance with relevant nutritional properties of the particular product—in this case, olive oil. Consumer subjective and objective knowledge, interest in health-related issues, and demographic variables were studied for their potential relationship (explanatory capacity) with olive oil consumption frequency, using a sample of 256 inhabitants of Montevideo (Uruguay). Several of the studied variables were found to relate to olive oil consumption, such as subjective and objective knowledge, age, education level, marital status, and interest in health-related issues. Subjective knowledge was found to have the highest explanatory capacity. An increase in subjective knowledge is therefore expected to lead to an increase in consumption frequency among regular olive oil consumers, while it may also encourage less frequent or non-consumers to purchase olive oil and become acquainted with the product. 展开更多
关键词 OLIVE Oil subjective KNOWLEDGE objective KNOWLEDGE HEALTH CONSCIOUSNESS Decision Trees
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Efficient Spam Filtering System Based on Smart Cooperative Subjective and Objective Methods
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作者 Samir A. Elsagheer Mohamed 《International Journal of Communications, Network and System Sciences》 2013年第2期88-99,共12页
Most of the spam filtering techniques are based on objective methods such as the content filtering and DNS/reverse DNS checks. Recently, some cooperative subjective spam filtering techniques are proposed. Objective me... Most of the spam filtering techniques are based on objective methods such as the content filtering and DNS/reverse DNS checks. Recently, some cooperative subjective spam filtering techniques are proposed. Objective methods suffer from the false positive and false negative classification. Objective methods based on the content filtering are time consuming and resource demanding. They are inaccurate and require continuous update to cope with newly invented spammer’s tricks. On the other side, the existing subjective proposals have some drawbacks like the attacks from malicious users that make them unreliable and the privacy. In this paper, we propose an efficient spam filtering system that is based on a smart cooperative subjective technique for content filtering in addition to the fastest and the most reliable non-content-based objective methods. The system combines several applications. The first is a web-based system that we have developed based on the proposed technique. A server application having extra features suitable for the enterprises and closed work groups is a second part of the system. Another part is a set of standard web services that allow any existing email server or email client to interact with the system. It allows the email servers to query the system for email filtering. They can also allow the users via the mail user agents to participate in the subjective spam filtering problem. 展开更多
关键词 ANTI-SPAM SYSTEM objective SPAM FILTERING Cooperative subjective SPAM FILTERING WEB Application WEB Services
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Subjective V.S Objective Test Item
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作者 陶永艳 《海外英语》 2011年第4X期129-129,共1页
In this article,I will talk about the definition and discrimination of subjective test and objective test.The strong points and weak points are also discussed.Although each has its own disadvantages,subjective test an... In this article,I will talk about the definition and discrimination of subjective test and objective test.The strong points and weak points are also discussed.Although each has its own disadvantages,subjective test and objective test will still play important roles at present or in future.A good classroom test will usually contain both subjective and objective test items. 展开更多
关键词 subjective and objective TEST LANGUAGE
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A Contrastive Study on the C-E Translation of the Verb of Perception zhijian from the Perspective of Subjective Consciousness and Objective Consciousness
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作者 Huidan Lu 《Review of Educational Theory》 2020年第4期19-24,共6页
Verbs of perception include sight,hearing,smell,taste and touch,of which zhijian belongs to sight is very common in literary works,and its semantic meaning also begins to change with the development of time.Based on t... Verbs of perception include sight,hearing,smell,taste and touch,of which zhijian belongs to sight is very common in literary works,and its semantic meaning also begins to change with the development of time.Based on the original text and two translated versions of the Water Margin,this paper makes a comparative analysis of the translation strategies of zhijian on the basis that Chinese emphasizes subjective consciousness and the mixed consciousness of subjectivity and objectivity,while English stresses objective consciousness with a clear boundary between subjectivity and objectivity.According to previous studies,this paper regroups the appearance of zhijian and divides it into two categories,namely zhijian at the beginning of a sentence and at the beginning of a minor sentence.On the basis of the context and the changing function of zhijian,that is,the function of being a verb and being a discourse marker,it can be concluded that as the meaning of a verb,the real action,the meaning of zhijian is expressed by“seeing”,so translators usually adopt literal translation;while as a discourse marker,it is no longer the main component of sentence structure,but to highlight the following information,translators will adopt deletion,conversion and retaining.It can be seen that translators often need to convert Chinese characterized by subjective consciousness into English dominated by objective consciousness,thus conforming to various meaning of zhijian. 展开更多
关键词 subjective consciousness and objective consciousness Verbs of perception zhijian A contrastive study on the C-E translation
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一种基于Subject-Action-Object三元组的知识基因提取方法 被引量:17
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作者 许琦 顾新建 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2013年第3期385-399,共15页
以专利引证网络为载体,从知识基因稳定性、遗传性以及变异性等基本特征出发,提出一种基于subject-action-object三元组的知识基因提取方法.应用连接度算法分析专利引证关系,挖掘引证专利和被引专利之间继承和发展的知识流,建立知识进化... 以专利引证网络为载体,从知识基因稳定性、遗传性以及变异性等基本特征出发,提出一种基于subject-action-object三元组的知识基因提取方法.应用连接度算法分析专利引证关系,挖掘引证专利和被引专利之间继承和发展的知识流,建立知识进化轨迹;利用文本语法分析技术,从专利权利要求书中提取subject-action-object三元组;基于语义词库WordNet进行语义加工,计算语义相似度,合并同义的subject-action-object三元组,绘制知识基因图谱.从美国专利数据库中采集了5 073项1975—1999年授权的数据挖掘领域的相关专利,分析了专利的地区分布情况和年度分布情况.从NBER(National Bureau of Economic Research)的专利数据集中查询得到专利引证关系,利用网络分析软件Pajek构建专利引证网络,作为实验数据样本,对所提出的知识基因提取方法进行验证.实验结果表明:所提取的subject-action-object三元组具备了知识基因稳定性、遗传性和变异性等特征,可以作为知识基因的一种表现形式. 展开更多
关键词 知识基因 subject-action-object三元组 专利引证网络 知识进化 语义相似度
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Argument Ambiguities Make Subject Relative Clause More Difficult to Process than Object Relative Clause in Mandarin
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作者 YANG Xie-lan HE Wen-guang 《Journal of Literature and Art Studies》 2020年第2期102-113,共12页
Relative clauses(RCs)processing has been a hot issue in decades.Studies from head-initial languages have found that SRCs were easier to comprehend than ORCs,and many different models were constructed to account for SR... Relative clauses(RCs)processing has been a hot issue in decades.Studies from head-initial languages have found that SRCs were easier to comprehend than ORCs,and many different models were constructed to account for SRCs preference.Chinese are head-final languages and the head noun phrases are behind the internal-clause.Such a great difference in syntactic structure made Chinese to be the optimum material to test the models mentioned above.In the paper,two experiments were carried out using eye-movement tracking methods to explore the difficulty with RCs processing in mandarin,and results showed that:when the two noun phrases were both from animate category,SRCs were more difficult than ORCs,but when the noun phrases in the internal-relative-clause were inanimate and the noun phrases in the matrix were animate,the difficulties with SRCs were greatly reduced.Based on these findings,we hold that the linear syntactic distance between the gap and the filler was not the key reason to the difficulty with SRCs.On the contrary,the ambiguity in argument construction may be the most important. 展开更多
关键词 subjective RELATIVE CLAUSE object RELATIVE CLAUSE ARGUMENT ambiguity MANDARIN
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What is the subject and object of social security?
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作者 WANG Shuo 《International English Education Research》 2018年第3期47-48,共2页
The subject and the object are a pair of concepts within the philosophical category. Dialectical materialism takes practice as the medium, and holds that subject is the existence of an active objective world, and that... The subject and the object are a pair of concepts within the philosophical category. Dialectical materialism takes practice as the medium, and holds that subject is the existence of an active objective world, and that the object is the object of practical activity. Under certain conditions, the subject and object can In terms of social security, the main body of responsibility is the government that allows the transfer of citizens' rights. Thereforethe government is the main body of production and providers of public goods, and the object is the main body's guaranteed rights and obligations. Commonly pointed objects or things generally refer to specific material information in practical operations, abstract information economy, legal norms, and the entire practice process. 展开更多
关键词 social security subject object
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Subjectivities of the Scientific Endeavor:Noting the Illusion of Objectivity in the History of Science and Medicine
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作者 Imanni K.Sheppard 《History & Philosophy of Medicine》 2022年第1期4-8,共5页
The history of science and medicine has long been steeped in the notion that they are objective(untainted by the philosophical and ideological ebbs and flows of society)and utilitarian(doing what is best for the great... The history of science and medicine has long been steeped in the notion that they are objective(untainted by the philosophical and ideological ebbs and flows of society)and utilitarian(doing what is best for the greater good).Because of this,scientific and medical epistemologies and praxis are often held to an esteem that is unquestioned,celebrated,and occasionally unchecked.A closer look at the history of science and medicine,however,readily reveal the extent to which the milieu of society has informed scientific and medical endeavors.As such,an understanding of how the subjectivities of scientific and medical endeavors situate within our contemporary disciplines and practices is significant to one’s ability to truly understand said disciplines.Likewise,such an evaluation will provide insight into our role in perpetuating the illusion of objectivity in these fields.With this in mind,this paper provides a philosophical and historical examination of the concept of objectivity(in contrast to subjectivity)in science and medicine. 展开更多
关键词 objectIVITY subjectIVITY history of science history of medicine natural law
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防寒靴热湿舒适性能的主客观综合评测试点研究
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作者 弓太生 李文博 +3 位作者 杜美娴 吴婷 周素静 刘世超 《皮革科学与工程》 北大核心 2026年第1期80-87,共8页
【目的】为探究防寒靴整鞋热湿舒适性及鞋帮材料、环境温度对防寒靴热湿舒适性的影响。【方法】使用气候仓模拟0、-5和-10°C三个温度条件,用传感器测量两款防寒靴鞋腔的温度和相对湿度,同时分别采用四点和七点强度等级量表进行闷... 【目的】为探究防寒靴整鞋热湿舒适性及鞋帮材料、环境温度对防寒靴热湿舒适性的影响。【方法】使用气候仓模拟0、-5和-10°C三个温度条件,用传感器测量两款防寒靴鞋腔的温度和相对湿度,同时分别采用四点和七点强度等级量表进行闷湿感和热暖感评价。【结果】在三种环境温度下,气凝胶防寒靴各部位的温度都高于17防寒靴2~4°C。气凝胶防寒靴的相对湿度略高于17防寒靴,17防寒靴的平均吸湿量高于气凝胶防寒靴1.39 g。气凝胶防寒靴的热湿舒适性主观评价优于17防寒靴。【结论】气凝胶保温棉可提高鞋靴的保温性能、减轻鞋靴质量。低温环境下Coolmax做内里材料仍有较好的吸湿排汗能力,可提高防寒靴的湿舒适性能。在防寒靴的热湿舒适性测评中,受试者对潮湿和足部不适的感知与高排汗部位并不对应。 展开更多
关键词 防寒靴 热湿舒适性 鞋腔内温湿度 气候仓 主客观评价 革制品
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PKHOI:利用先验知识增强人-物交互检测算法
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作者 赵文豪 梅萌 +1 位作者 王小平 罗航宇 《计算机科学》 北大核心 2026年第1期141-152,共12页
人-物交互检测(Human-Object Interaction,HOI)在视觉场景理解中起着至关重要的作用,随着深度学习技术的发展,基于视觉的交互检测模型已经能够获得良好的性能。然而,现有方法大多缺乏对先验的逻辑知识的运用,有时会推导出不合理的结果... 人-物交互检测(Human-Object Interaction,HOI)在视觉场景理解中起着至关重要的作用,随着深度学习技术的发展,基于视觉的交互检测模型已经能够获得良好的性能。然而,现有方法大多缺乏对先验的逻辑知识的运用,有时会推导出不合理的结果。其次,一些方法将空间信息和人体姿态信息用于推理,但它们仅在推理结果和标注之间构造损失,导致解码器无法学习到准确的隐含关系。因此,提出一种利用先验知识增强现有人-物交互检测算法的方法PKHOI,该方法能够有效增强现有人-物交互检测算法的准确性。具体而言,从训练集中构建了一个包含物品功能性、空间关系、人体姿态和动词共现的逻辑规则表,将其形式化为一阶逻辑并映射到连续空间中,在训练阶段和推理阶段分别以损失函数和矩阵乘法的形式将先验的逻辑规则融入神经网络,提升模型的准确性。此外,提出一种通过融合多模态信息(空间、语义和人体姿态信息)生成人-物对查询的方法,结合逻辑损失函数,可以引导解码器学习到更多的隐含知识。利用提出的方法增强了两个主流的人-物交互检测算法UPT和PViC,并在V-COCO,HICO-DET和Flickr30k数据集上进行了评估,实验结果表明,提出的方法可以有效提高现有方法的性能。 展开更多
关键词 人-物交互检测 先验知识 一阶逻辑 姿态信息 多模态信息融合
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膝关节前交叉韧带损伤重建后有效性和安全性评价标准的动态演变
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作者 李成科 高苗苗 +3 位作者 雷蕾 马荣星 张净宇 胡永成 《中国组织工程研究》 北大核心 2026年第21期5605-5613,共9页
背景:通常需要将主观评分和客观评价标准联合使用才能更准确和全面地对前交叉韧带损伤重建患者的膝关节功能进行评估。目的:回顾前交叉韧带重建后有效性和安全性评价标准的演变趋势,分析主观与客观测量工具使用的动态演变。方法:对PubMe... 背景:通常需要将主观评分和客观评价标准联合使用才能更准确和全面地对前交叉韧带损伤重建患者的膝关节功能进行评估。目的:回顾前交叉韧带重建后有效性和安全性评价标准的演变趋势,分析主观与客观测量工具使用的动态演变。方法:对PubMed与Embase数据库进行了系统性检索,检索时限为建库至2023-08-22,识别包含前交叉韧带重建后评估膝关节功能的研究,最终筛选符合纳入标准的研究文献共136篇,提取文中使用的各类评价标准的使用频率,最后运用Origin 2025软件分析其随时间的变化。结果与结论:①在1990-2005年间,客观评价标准应用较为广泛;自2005年起,以患者报告结果测量为代表的主观评分的使用比例迅速上升,且于2009年起使用频率显著超过客观评价标准;②其中早期以Lysholm量表、Tegner活动评分占主导地位,后期国际膝关节文献委员会主观膝关节评分、膝关节损伤和骨关节炎结局评分及前交叉韧带受伤后恢复运动量表逐渐成为主要主观工具;③此外,在客观评价方面,KT1000/2000关节测量仪、Lachman试验和跳跃试验的应用保持相对稳定,但总体处于下降趋势;④提示前交叉韧带重建后有效性和安全性评估标准经历了从以客观膝关节稳定性为主向以患者主观体验为中心的转变;⑤此文首次通过量化数据揭示当今主流评价工具的动态演变过程,指出当前临床实践强调主客观评价标准结合评估,推荐的组合为:国际膝关节文献委员会主观膝关节评分或膝关节损伤和骨关节炎结局评分+前交叉韧带受伤后恢复运动量表+KT1000/2000或跳跃试验,以全面反映膝关节功能恢复与患者感知结果,为未来建立综合评估方式提供了实证基础。 展开更多
关键词 前交叉韧带损伤 前交叉韧带重建 主观评价标准 客观评价标准 动态演变 趋势分析
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基于主客体互倚模型的中青年脑卒中患者及配偶二元应对与恐惧疾病进展的关系
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作者 李永春 刘稳 郑霞 《河南医学研究》 2026年第2期216-219,共4页
目的探讨中青年脑卒中患者及其配偶二元应对与恐惧疾病进展的主客体互倚关系。方法便利选取2023年3—12月在河南大学第一附属医院住院的,接受治疗的中青年脑卒中患者及其配偶作为本研究的对象。采用一般资料调查表、二元应对量表、恐惧... 目的探讨中青年脑卒中患者及其配偶二元应对与恐惧疾病进展的主客体互倚关系。方法便利选取2023年3—12月在河南大学第一附属医院住院的,接受治疗的中青年脑卒中患者及其配偶作为本研究的对象。采用一般资料调查表、二元应对量表、恐惧疾病进展简化量表及配偶恐惧疾病进展量表对206对中青年脑卒中患者及其配偶进行调查。结果中青年脑卒中患者及配偶二元应对得分分别为(123.13±16.13)和(126.69±19.57)分,恐惧疾病进展得分分别为(38.96±7.39)和(29.75±8.18)分。脑卒中患者及配偶的二元应对均为负向预测其自身恐惧疾病进展水平(β=-0.36,-0.70,P<0.05),即主体效应显著;患者及配偶二元应对也负向预测对方的恐惧疾病进展水平(β=-0.12,-0.44,P<0.05),即客体效应也显著。结论中青年脑卒中患者及配偶的恐惧疾病进展水平受到自身和对方二元应对的交互影响,提示在临床干预中,应当重视配偶在其中的重要作用,可视患者和配偶为一个整体,制定出以两者相互支持、共同应对为中心的干预方案。 展开更多
关键词 中青年脑卒中 配偶 二元应对 恐惧疾病进展 主客体互倚模型
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物的主体性与生态伦理——新物质主义视角下的美国当代生态文学
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作者 张奕凡 《河北学刊》 北大核心 2026年第1期202-208,共7页
美国当代文学中涌现出一批聚焦非人类的生态小说,代表作家有理查德·鲍尔斯、芭芭拉·金索沃等。这些小说以新物质主义中物具有能动性的核心观点为理论基础,通过构建听觉异托邦与越界共生系统赋予物以主体性。同时,这些小说提... 美国当代文学中涌现出一批聚焦非人类的生态小说,代表作家有理查德·鲍尔斯、芭芭拉·金索沃等。这些小说以新物质主义中物具有能动性的核心观点为理论基础,通过构建听觉异托邦与越界共生系统赋予物以主体性。同时,这些小说提出与物具有同构关系的人需要通过直诉心灵的感官体验接收物传递的信号,从而实现人与物的交流互通。这些作品超越了将人作为叙事主体、将物背景化的叙事传统,颠覆了视觉在感官叙事中的主导地位,展现了后人类语境下生态共同体建构的可能性,富有现实意义与时代价值。 展开更多
关键词 新物质主义 物叙事 听觉叙事 生态批评 主体性
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Subject,Object and Target Systems of Rural Human Resource Development
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作者 SHEN Hong ZHAO Yong-le HUANG De-bing 《Asian Agricultural Research》 2012年第3期33-36,共4页
From subject,object and target subsystems,we analyze the rural human resource development system.The subject system includes government,education and training organizations,society,and rural human resource itself.Diff... From subject,object and target subsystems,we analyze the rural human resource development system.The subject system includes government,education and training organizations,society,and rural human resource itself.Different development subject bears different responsibility.Object system includes farmers engaged in farming,farmer workers,rural unemployed people,rural students,rural left-behind people,and other people in rural areas.Different development object has different features.Development target system includes raising quality of rural human resource,keeping reasonable population size,optimizing structure of rural human resource,and improving vitality of rural human resource,etc. 展开更多
关键词 Rural areas Human resource development subject object Target System
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Non-Rigid Object Tracking by Anisotropic Kernel Mean Shift
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作者 齐苏敏 黄贤武 《Transactions of Tianjin University》 EI CAS 2007年第5期370-374,共5页
Mean shift,an iterative procedure that shifts each data point to the average of data points in its neighborhood,has been applied to object tracker.However,the traditional mean shift tracker by isotropic kernel often l... Mean shift,an iterative procedure that shifts each data point to the average of data points in its neighborhood,has been applied to object tracker.However,the traditional mean shift tracker by isotropic kernel often loses the object with the changing object structure in video sequences,especially when the object structure varies fast.This paper proposes a non-rigid object tracker by anisotropic kernel mean shift in which the shape,scale,and orientation of the kernels adapt to the changing object structure.The experimental results show that the new tracker is self-adaptive and approximately twice faster than the traditional tracker,which ensures the robustness and real time of tracking. 展开更多
关键词 object tracking mean shift anisotropic kernel modal matching
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The integration model of objective and subjective data of residential indoor environment quality in Northeast China based on structural equation modeling
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作者 Yu Chen Bin Chen +1 位作者 Jie Deng Siwei Xu 《Building Simulation》 SCIE EI CSCD 2022年第5期741-754,共14页
Currently the indoor environment quality is described or evaluated mainly by the subjective or objective data.However,research increasingly has demonstrated that objective and subjective data both had some weaknesses ... Currently the indoor environment quality is described or evaluated mainly by the subjective or objective data.However,research increasingly has demonstrated that objective and subjective data both had some weaknesses to characterize the indoor environment quality,and they can compensate for each other's relative weaknesses.Hence,this study aims to develop an integration model to allow indoor subjective and objective data to be combined based on the structural equation modeling approach,using the Northeast China residential indoor environmental survey data.The results indicated that the integration model had a good fit for the survey data,and the model validity was confirmed.Moreover,in contrast to the subjective data(R^(2)=0.363)and objective data(R^(2)=0.239),the integrated data(R^(2)=0.553)improved the explanatory power on the satisfaction with the overall indoor environment.Furthermore,this integration model demonstrated that indoor subjective data assigned more weights to the integrated data than the corresponding objective data.The association strength of thermal environment and indoor air quality(0.43 or 0.47)was the strongest among the interactions of thermal,air quality,acoustic,and lighting environments.Consequently,the main contribution of this paper was that it provided a comprehensive model to accomplish the integration of indoor environmental subjective and objective data,promoting the ability to describe and assess the indoor environment quality. 展开更多
关键词 indoor environment quality integration model subjective data objective data structural equation modeling
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