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从BRDF到BPDF:遥感反演基础模型的演进初探

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中国科学：信息科学 2024年第8期54卷 2001-2020页

作者：尚可晏磊张飞舟褚君浩杨彬刘思远 Kevin tansey 贾秀萍 Oleg DUBOVIK 张子晗李飞北京大学地球与空间科学学院遥感与地理信息系统研究所北京大学空间信息集成与3S工程应用北京市重点实验室北京100871 中国科学院上海技术物理研究所红外物理国家重点实验室上海200083 湖南大学电气与信息工程学院长沙410082 中国兵器工业导航与控制技术研究所北京100089 School of Geography Geologyand the EnvironmentUniversity of LeicesterLeicester LE17RHUK School of Engineering and Technology The University of New South WalesCanberra ACT 2600Australia Laboratoire d'Optique Atmospherique CNRS/UniversitéLilleVilleneuve d'Ascq 59655France

光的本质是横波电磁波矢量,以双向反射分布函数BRDF (bidirectional reflectance distribution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感... 详细信息

光的本质是横波电磁波矢量,以双向反射分布函数BRDF (bidirectional reflectance distribution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感基础上考虑垂直于电磁波传播方向的二维偏振矢量特性(强度+方向)就能深化为矢量遥感体系,从而有望精确刻画反射光中蕴含的多种信息,提升植被参数反演精度.刻画偏振反射空间分布的双向偏振分布函数BPDF目前存在精度低、泛化性差等问题,因此进一步探索矢量遥感基础理论,构建通用性强的植被矢量遥感基础模型具有迫切的现实需求.本文旨在利用光子与植被元素的相互作用构建通用性较强的植被BPDF物理模型.首先基于光子–植被元素相互作用的光谱不变原理,提出基于方向逃逸概率的植被BPDF物理模型基础形式,并基于植被单次反射的辐射传输理论推导模型解析表达;随后通过考虑叶片散射随干物质含量的变化,提出光谱不变原理优化表达并推导模型通用表达式;最后分别利用三维矢量辐射传输模型和多尺度实测数据实现模型的正演直接验证和间接验证.结果表明,本文构建的BPDF物理模型的解析表达和通用表达在不同植被场景下,对偏振反射率的正演均方根误差可达0.001以内,与矢量辐射传输模型正演结果在半球空间内具有很强一致性,在多尺度实测数据也简洁验证了模型关系的稳定性,模型R2普遍高于0.9.相比于现存植被偏振反射模型,本文构建的模型兼具物理机理、简洁形式、可接受的参数化方案、较高精度和较强泛化能力,对浓密植被具备通用性,为在BRDF一维标量遥感的基础上进一步考虑BPDF二维偏振特性从而形成矢量遥感体系这一转变过程提供了理论基础和探索性方案.

关键词：植被 BPDF 矢量遥感物理模型偏振

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Deleterious effects of whole-body vibration on the spine:A review of in vivo,ex vivo,and in vitro models

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Animal Models and Experimental Medicine 2021年第2期4卷 77-86页

作者： Folly Patterson Raheleh Miralami Keith E.tansey Raj K.Prabhu Lauren B.Priddy Department of Agricultural and Biological Engineering Mississippi State UniversityMississippi StateMSUSA Center for Advanced Vehicular Systems Mississippi State UniversityStarkvilleMSUSA Department of Neurosurgery and Neurobiology University of Mississippi Medical CenterJacksonMSUSA Center for Neuroscience and Neurological Recovery Methodist Rehabilitation CenterJacksonMSUSA Spinal Cord Injury Medicine and Research Services G.V.(Sonny)Montgomery VA Medical CenterJacksonMSUSA

Occupational exposure to whole-body vibration is associated with the develop-ment of musculoskeletal,neurological,and other *** back pain and other spine disorders are prevalent among those exposed to whole-body vibration in occupational and military *** standards for limiting exposure to whole-body vibration have been in place for decades,there is a lack of understanding of whole-body vibration-associated risks among safety and healthcare ***,disorders associated with whole-body vibration exposure remain prevalent in the workforce and *** relationship between whole-body vibra-tion and low back pain in humans has been established largely through cohort stud-ies,for which vibration inputs that lead to symptoms are rarely,if ever,*** gap in knowledge highlights the need for the development of relevant in vivo,ex vivo,and in vitro models to study such *** parameters of vibrational stimuli(eg,frequency and direction)play critical roles in such pathologies,but the specific cause-and-effect relationships between whole-body vibration and spinal pa-thologies remain mostly *** paper provides a summary of whole-body vibration parameters;reviews in vivo,ex vivo,and in vitro models for spinal patholo-gies resulting from whole-body vibration;and offers suggestions to address the gaps in translating injury biomechanics data to inform clinical practice.

关键词： adverse effects animal models intervertebral disc spine translational research vibration

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A Greener Education

Beijing Review 2015年第40期58卷 44-45页

作者： Stephanie B.tansey the development of environmental education in Beijing

The new concept ＂beautiful China,＂ a more evocative and thematically expansive interpretation of the political buzz phrase ＂ecological civilization,＂ is at present being imbued in the minds of students across Beijing＇s classrooms. Ongoing reforms seek to reshape education throughout basic primary and middle school curricula, ensuring that the young will develop the self-motivation and skills to reach their potential, as well as contribute to a healthier and ecologically-informed city, country and world.

关键词：课程改革健康学生北京教育 LIF 格林生态文明

Outcomes in randomized controlled trials of exercise interventions in solid organ transplant

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World Journal of Transplantation 2016年第4期6卷 774-789页

作者： Tania Janaudis-Ferreira Sunita Mathur Stacey Konidis Catherine M tansey Cecile Beaurepaire Canadian National Transplant Research Program School of Physical and Occupational Therapy McGill University Department of Physical Therapy University of Toronto

AIM To identify the outcome measures that have been used in randomized controlled trials(RCTs) of exercise training in solid organ transplant(SOT) recipients and to link these outcomes to the International Classification of Functioning, Disability and Health(ICF) *** Electronic literature searches of MEDLINE, EMBASE, CINAHL, Cochrane, Scopus, and Web of Science were performed. We sought RCTs that investigated the effect of exercise training in SOT recipients. Reference lists of all eligible publications were searched for other appropriate studies not identified by the electronic search. A complete list of outcome measures used in the RCTs was generated and each of these was linked to an ICF *** Four hundred and thirteen articles were retrieved, of which 35 met our inclusion criteria. The studies included were designed to compare the effects of exercise training programs to usual care or to another exercise training program and reported on recipients of heart(n = 21), kidney(n = 9), lung(n = 3) or liver(n = 2) transplant. Of the 126 outcome measures identified, 62 were used as primary outcome measures. The most commonly occurring primary outcomes were aerobic capacity using the peak VO2(n = 13), quality of life using the shortform-36(n = 8), and muscle strength(n = 7). Theseoutcome measures were linked to 113 ICF categories and the majority of outcomes fall into the body function domain(n = 93). CONCLUSION There is little standardization in outcome measures used in RCTs of exercise interventions in SOT recipients. The ICF framework can be used to select a core set of outcomes that cross all domains of ICF and that would be appropriate to all SOT recipients.

关键词： Solid organ transplantation Systematic review Rehabilitation Exercise Outcome measures International Classification of Functioning,Disability and Health

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温哥华公寓

城市环境设计 2019年第2期118卷 210-219页

作者： Carl McDonald Melissa Bauld Aaron Mark alan tansey Alex Wu Alexandra Gustafsson Alina Tamosiunaite Amina Blacksher Aran Coakley Arash Adel Ahmadian Armen Menendian Barbora Srpkova Ben Zunkeler Benjamin Caldwell Benjamin Novacinski Bennett Gale Birk Daugaard Blake Theodore Smith Brian Foster Brian Rome Carolien Schippers Christopher James Malcolm Jr. Christopher Junkin Christopher Tron David Brown David Dottelonde Deborah Campbell Doug Stechschulte Douglass Alligood Edward Yung Elena Bresciani Filip Milovanovic Francesca Portesine Gabriel Hernandez Solano Gabriel Jewell-Vitale Hector Garcia Ivy Hume Jan Leenknegt Janice Rim John Kim Josiah Poland Julian Liang Julianne Gola Julie Kaufman Karol Bogdan Borkowski Kurt Nieminen Lauren Turner Lorenz Krisai Lucio Santos Marcella Martinez Martin Voelkle Matthew Dlugosz Megan Ng Michael Robert Taylor Otilia Pupezeanu Paula Domka Phillip MacDougall Ryan Yang Sean Franklin Sebastian Grogaard Simon Scheller Spencer Hayden Taylor Fulton Terrence Chew Terry Lallak Thomas Smith Tianqi Zhang Tobias Hjortdal Tran Le Valentina Mele Xinyu Wang Yaziel Juarbe Yoanna Shivarova Zach Walters Zhifei Xu Andrew Latreille Glotman Simpson Urban YVR 运小红

温哥华公寓的建成预示着这个年轻的城市正在打开城市政策制定的新局面。它将成为从Granville大桥进入温哥华市中心的城市大门。塔楼和群房的设计是对新城市主义地域类型中的"温哥华主义"建筑的全新解读,配合一座纤细的塔楼,试图保留城... 详细信息

温哥华公寓的建成预示着这个年轻的城市正在打开城市政策制定的新局面。它将成为从Granville大桥进入温哥华市中心的城市大门。塔楼和群房的设计是对新城市主义地域类型中的"温哥华主义"建筑的全新解读,配合一座纤细的塔楼,试图保留城市视觉通廊并激活步行通道。住宅塔楼借助高度和毗邻河流的地理位置,是唯一可以同时享受水景和山景的建筑,坐拥温哥华广袤的自然风光。

关键词：温哥华平面图 Dialog 立面图

Sustainability Education’s Long March

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Beijing Review 2012年第50期55卷 15-15页

作者： Stephanie tansey Dialogues With People Working Toward a Sustainable Beijing published by New World Press

China＇s long-standing commitment to sustainable development is reflected by a decade of ongoing reform to the college entrance examination system and the inclusion of sustainability education in the national geograph... 详细信息

关键词：可持续发展教育长征地理课程