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1.
基于决策树模型的海岸带分类方法研究   总被引:4,自引:1,他引:3  
海岸带地物分布复杂,地物混淆常造成海岸带提取困难。该文以江苏省粉砂淤泥质海岸为研究对象,运用图像光谱特征、纹理特征并引入地学知识,构建研究区遥感图像分类决策树模型,并利用ETM 图像进行海岸地物分类研究。结果表明:采用的决策树模型可以较好地结合纹理信息和地学知识,解决遥感图像中复杂地物分类过程中的混淆现象,分类精度达89.26%,比最大似然法分类精度提高了15.19%。  相似文献   

2.
高光谱遥感数据具有波段数目多、波段宽度窄、数据量庞大、波段间相关性高等特点,在一定程度上为图像的进一步处理和信息提取带来困难.为解决这一问题,在分析已有降维方法的基础上,提出了基于地物诊断性波谱吸收特征的高光谱遥感图像降维方法,将地物的诊断性吸收波谱特征区间作为一个独立的子空间进行处理,尽可能保留地物独有的吸收特征;在此基础上,进行子空间的特征提取和特征选择.为验证该方法的优越性,将其与传统的基于波谱区间的子空间划分方法进行分类对比,研究表明:基于该文方法降维后的图像分类精度更高,丰富了现有降维方法理论,具有一定的实用和推广价值.  相似文献   

3.
典型地物特征提取的适宜尺度选择   总被引:1,自引:0,他引:1  
遥感图像的尺度与图像所表达的信息有着密切的关系,但是在使用遥感图像进行研究和应用的过程中,使用尺度和图像尺度之间存在一定的矛盾,现有尺度的遥感图像不一定能满足应用的要求。为了解决使用尺度与图像现有尺度之间的矛盾,采用基于分维数的尺度转换方法得到以原始图像为基础的大于或小于原尺度的图像,在形成的连续变化的系列图像上提取两种典型地物样本,分别用地物单元周长(P)、面积(S)、面状地物形状系数(F)、斑块分维数(D)这4个表征地物形态特征的因子在各尺度图像上进行对比分析,发现随着遥感图像栅格尺寸的增大,典型地物样本灰度值的灰阶不断减少,形状复杂度不断降低,地物边界钝化,内部纹理结构简单化、粗糙化。综合分析以上现象,提出利用形状综合指数(Q)来计算适宜表达典型地物形状特征尺度的方法。实验结果表明:尺度为30 m图像时是表达水体样本1、居民地样本1、居民地样本2形状的适宜尺度,图像尺度为90 m时,是表达水体样本2形状特征的适宜尺度;通过典型地物形状综合指数成功的计算出典型地物形状的适宜尺度,为表达复杂地物的适宜尺度奠定了基础,并且该方法简单易行,具有一定的实用价值。  相似文献   

4.
面向对象解译方法在遥感影像地物分类中的应用   总被引:9,自引:0,他引:9  
王建芳  包世泰 《热带地理》2006,26(3):234-238,242
针对高分辨率遥感影像快速高效萃取有用信息这一遥感技术应用的热点问题,探讨了基于面向对象(Object-oriented)解译方法的遥感影像自动及半自动解译和提取的新思路.文中分析了面向对象解译方法在地物信息分类应用中的优势,并提出了基于此方法的高分辨率遥感影像多尺度信息提取技术流程.具体结合广州市新白云机场开发区IKONOS高分辨率遥感数据进行地物快速提取、自动分类的试验,并对解译效果进行了评估分析,证明此方法在高分辨率遥感影像地物分类中确实高效可行.  相似文献   

5.
人工地物自动提取是目标识别领域的重要研究内容。该文将图模型和流形排序算法相结合,提出一种基于遥感影像自动提取人工地物的算法。该算法在基于量子遗传算法的KSW熵分割算法获得影像人工地物先验值的基础上,构建以色调、纹理、方向等多特征为邻接边权重的图模型,并以超像素作为基本单位在图模型中进行流形排序,最终通过自适应阈值的方式获得人工地物分割结果。通过利用两幅不同分辨率遥感影像对该算法进行验证,结果显示该算法可以较为完整地提取人工地物,具有较高的正确识别率和较低的漏检率。  相似文献   

6.
基于小波变换的高分辨率影像纹理结构分类方法   总被引:17,自引:1,他引:17  
该文提出了利用小波变换获取纹理结构子图像能量参数,并用这些参数进行高分辨率图像纹理结构分类的新方法。由阐述遥感影像纹理结构识别原理人手,提出影像纹理结构特征抽取的小波变换方法,构造了有明确的数学和物理意义的参数来描述影像纹理信息,在此基础上利用这些参数进行影像纹理结构分类。试验结果表明,小波变换方法适用于具有规则和较强方向性的纹理结构影像分类。  相似文献   

7.
利用TM数据监测岩溶山区城市土地利用变化   总被引:9,自引:0,他引:9  
该文以贵阳市为例,利用多时相的TM遥感数据及相关资料对地质构造复杂,地表覆盖类型多样的岩溶山区城市土地利用变化进行了调查和动态监测,基于图像光谱信息特征分析,确定了用于贵阳市土地利用变化遥感图像分类的最佳波段组合,利用热红外波段TM6,基本消除了岩溶山区遥感图像分类中阴影和水体混分现象。  相似文献   

8.
遥感专题制图背景参数的应用分析*   总被引:3,自引:2,他引:1  
该文重点论述了图像识别中背景参数的应用,包括图像信息的地学、生态特性与其制图对象、尺度的分析拟定;地物识别分类最佳时相图像的物候历的研究;专题制图图像波段优化组合分析以及地物识别的目标背景因素的辅助应用.该类背景参数与区域参数的应用研究一样,对空间图像数字专题制图的精度的根本改进与提高,具有重要的作用.  相似文献   

9.
中巴地球资源02星数据特性分析   总被引:14,自引:0,他引:14  
卫星遥感图像数据特性分析是图像使用前重要的一步工作。利用归一化、单变量统计、类内和类间方差比值以及空间分辨率识别等数据模型分析了中巴地球资源卫星02星(CBERS-2)CCD相机数据的相对反射率波谱曲线变化特性、整幅图像的方差特性、作为分类训练区的样本地物的统计量特性和对空间地物识别的敏感性,并与LANDSAT7/ETM 图像进行对比。通过这些数据模型的应用研究,试图提供一种进行遥感图像数据特性分析的方法。  相似文献   

10.
土地利用/土地覆盖研究中遥感图像分类精度的提高方法   总被引:8,自引:0,他引:8  
合理地进行土地开发和利用是实现区域可持续发展的保障。利用遥感图像动态监测土地利用/土地覆盖状况具有快速、准确、及时的特点。如何提高遥感图像的分类精度,是动态监测中须解决的主要问题之一。该文基于传统的工作流程,探讨了在不同阶段提高遥感图像分类精度的方法,并对分类精度提高研究的前景进行了展望。  相似文献   

11.
BOOK REVIEWS     
Book Reviewed in this article: Development and Environment in Peninsular Malaysia . S. Robert Aiken, Colin H. Leigh, Thomas R. Leinbach, Michael R. Moss. The Rural-Urban Fringe: Canadian Perspectives . Ken B. Beesley and Lorne H. Russwurm, eds. Women and Development . Lourdes Benería, ed. The Border that Joins: Mexican Migrants and U.S. Responsibility . Peter G. Brown and Henry Shue, eds. Cities of the World: World Regional Urban Development . Stanley D. Brunn and Jack L. Williams, eds. Time Resources, Society, and Ecology: On the Capacity for Human Interaction in Space and Time (Vol. I, Preindustrial Societies). Tommy Carlstein. Urban Geography . David Clark. Spanish City Planning in North America . Dora P. Crouch, Daniel J. Garr, and Axel I. Mundigo. Not On Our Street: Community Attitudes to Mental Health Care . M. J. Dear and S. M. Taylor Unequal growth: Urban and Regional Employment Change in the U.K. Stephen Fothergill and Graham Gudgin. Agricultural Land in an Urban Society . Owen J. Furuseth and John T. Pierce. The Petroleum Industry in Oil-Importing Developing Countries . Fariborz Ghadar. Historical Understanding in Geography, An Idealist Approach . Leonard Guelke. Regional Planning in Europe . R. Hudson and J. R. Lewis, eds. Remote Sensing for Resource Management . Chris J. Johannsen and James L. Sanders, eds. Geography and The State . R. J. Johnston. Texas Graveyards: a Cultural Legacy . Tlrry G. Jordan. The Politics of Location: An Introduction . Andrew Kirby. A Social Geography of the City . David Ley. Energy and the Future . Douglas MacLean and Peter Brown, eds. The Natural Environment of Newfoundland Past and Present . A. G. Macpherson and J. B. Macpherson, eds. Tourism: Economic, Physical and Social Impacts . Alister Mathieson and Geoffrey Wall. Railroads and Land Grant Policy: A Study in Government Intervention . Lloyd J. Mercer. Progress in Rural Geography . Michael Pacione, ed. Progress in Urban Geography . Michael Pacione, ed. Models of Spatial Inequality: Settlement Patterns in Historical Archaeology . Robert Paynter. Natural Hazard Risk Assessment and Public Policy, Anticipating the Unexpected . William J. Petak and Arthur A. Atkisson. The Nature of Geomorphology . Alistair F. Pitty. Regional Conflict and National Policy . Kent A. Price Women and Spatial Change: Learning Resources for Social Science Courses . Arlene C. Rengert and Janice J. Monk, eds. Urban and Regional Analysis for Development Planning . Richard Rhoda. Rivers: Form and Process in Alluvial Channels . Keith Richards. This Remarkable Continent: An Atlas of United States and Canadian Society and Culture . John F. Rooney, Jr., Wilbur Zelinsky, and Dean R. Louder, gen. eds. The Origins of Open-Field Agriculture . Trevor Rowley, ed. Residential Location Determinants of the Older Population . Gundars Rudzitis. Borderland Sourcebook: A Guide to the Literature on Northern Mexico and the American Southwest . Ellwyn R. Stoddard, Richard L. Nostrand, and Jonathan P. West, eds. Arctic and Antarctic . David Sugden. Tall Timbers Ecology and Management Conference, February 22–24, 1979, Proceedings No. 16 . Graphic Communication and Design in Contemporary Cartography (Progress in Contemporary Cartography , Vol. II). D. R. Fraser Taylor, ed. Living with Energy Shortfall: A Future for American Towns and Cities . Jon Van Til. The United States: Habitation of Hope . J. Wreford Watson. Air Photo Interpretation for Archaeologists . D. R. Wilson. Urban and Rural Change in West Germany . Trevor Wild, ed. Population and Resources . Harry Robinson.  相似文献   

12.
<正>1 Introduction In 2013,Chagusaba,which is traditional tea-grass integrated system in Shizuoka,were accepted as new world heritage site of agriculture.Shizuoka prefecture occupies a variety of elevations,from 0 to 3000m or more above sea level.Because of the diversity of land features and climates,this area produces 167 agricultural commodities.In addition,a lot of traditional agriculture and over200 local native varieties of crops have been conserved in Shizuoka  相似文献   

13.
<正>There are more than 10000 years of agricultural development history in the world that has provided very fruitful and ingenious traditional knowledge and experiences reflecting the evolution of humanity and the nature.In2002,the Food and Agriculture Organization of the United Nations(FAO)initiated an international partnership initiative of"Conservation and Adaptive Management of Globally Important Agricultural Heritage Systems  相似文献   

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BOOK REVIEWS     
Book Reviewed in this article: Geography and the Third World. International Seminar, 14–18 May 1980, Kuala Lumpur, Malaysia . Ishmail Ahmad and Jamaluddin Md Jahi, eds. The Growth Dilemma: Residents' Views and Local Population Change in the United States . Mark Baldassare. Sport and Place: A Geography of Sport in England, Scotland & Wales . John Bale. The Deindustrialization of America: Plant Closings, Community Abandonment, and the Dismantling of Basic Industry . Barry Bluestone and Bennett Harrison. Selected Essays 1963–1975: Carl O. Sauer . Bob Callahen, ed. Housing and Planning in the Countryside . G. Clark. Conflict, Politics and the Urban Scene . Kevin R. Cox and R. J. Johnston, eds. Thematic Maps: Their Design and Production . David J. Cuff and Mark T. Mattson. Wine: A Geographic Appreciation . Harm Jan de Blij. USSR in Maps . J. C. Dewdney. Political Geography: A Contemporary Perspective . Ramesh D. Dikshit. Rethinking Human Adaptation . Rada Dyson-Hudson and Michael A. Little, eds. Sacred Sands: The Struggle for Community in the indiana Dunes . J. Ronald Engel. Geography of the Biosphere . A. Furley and Walter W. Newey. Disaster and Reconstruction . Robert Geipel. Glasgow: The Making of a City . Andrew Gibb. Design for Arid Regions . Giden S. Golany, ed. Urbanization and Cancer Mortality: The United States Experience, 1950–1975 . Michael R. Greenberg. Geology in the Nineteenth Century: Changing Views of a Changing World . Mott T. Greene. Colonización y Destrucción de Bosques en Panamá . Stanley Heckadon Moreno and Alberto McKay, eds. Urban Geography: A First Approach . David T. Herbert and Colin J. Thomas. The Visual and Spatial Structure of Landscapes . Tadahiko Higuchi. Climate from Tree Rings . M. K. Hughes, P. M. Kelly, J. R. Pilcher, and V. C. LaMarche, Jr., eds. The structure of Nineteenth Century Cities . James H. Johnson and Colin G. Pooley, eds. The American Planner: Biographies and Recollections . Donald A. Krueckeberg, ed. Urban Land Policy For the 1980s, the Message for State and Local Government . George Lefcoe, ed. Regional Planning: Evolution, Crisis and Prospects . Gill C. Lim, ed. Relevance and Ethics In Geography . Bruce Mitchell and Dianne Draper. China: The Geography of Development and Modernization . Clifton W. Pannell and Laurence J. C. MA. The Urban Retailing System . Robert B. Potter. Hants. Nonconventional Energy Resources . Philip R. Pryde. Caribbean Migrants: Environment and Human Survival on St. Kitts and Nevis . Bonham C. Richardson. Population and Resources . Harry Robinson. East Los Angeles: History of A Barrio . Ricardo Romo. Integrated Impact Assessment . Frederick A. Rossini and Alan L. Porter, eds. Environmental Aesthetics: Essays in Interpretation . Barry Sadler and Allen Carlson, eds. Earthwatch . Charles Sheffield. Field Techniques and Research Methods in Geography . Robert H. Stoddard. Haiti: Land of Poverty . Robert J. Tata. Weathering and Erosion: Sources and Methods in Geography . Stephen T. Trudgill. Once Beneath the Forest. Prehistoric Terracing in the Río Bec Region of the Maya Lowlands . B. L. Turner, II. The Historical Geography of Scotland since 1707 . David Turnock.  相似文献   

16.
BOOK REVIEWS     
Book Reviewed in this article: The City in Cultural Context . John Agnew, John Mercer, David Sopher, eds. Soils and Geomorphology Peter W. Birkeland. Urbanization and Settlement Systems, International Perspectives . L. S. Bourne, R. Sinclair, and K. Dziewoński. eds. An Introduction to Urban Historical Geography . Harold Carter. Overshoot, The Ecological Basis of Revolutionary Change . William J. Catton, Jr. Rivers of the World . Eberhard Czaya. Jewish Communities in Frontier Societies: Argentina, Australia and South Africa . Daniel J. Elazar with Peter Medding. Color in Public Spaces: Toward a Communication-Based Theory of the Urban Built Environment. Kenneth E. Foote. Spatial Statistics and Models. Gary L. Gaile and Cort J. Willmott, eds. Mega-Geomorphology. Rita Gardner and Helen Scoging, eds. Technological Change and Regional Development. Gillespie, ed. The Arid Lands: Their Use and Abuse. R. L. Heathcote. The Location of Industry in Britain. A. G. Hoare. Groundwater as a Geomorphic Agent . R. G. LaFleur, ed. Rural Public Services: International Comparisons. Richard E. Lonsdale and Gyorgy Enyedi, eds. Saving Water in a Desert City. William E. Martin, Helen M. Ingram, Nancy K. Laney, and Adrian H. Griffin. Water Resources: Distribution, Use and Management. John R. Mather. Transnationals and the Third World: The Struggle for Culture. Armand Mattelart. South Hadley, MA: USGS Digital Cartographic Data Standards. R. B. McEwen, R. E. Witmer, and B. S. Ramey, eds. The Ecosystem Concept in Anthropology. Emilio F. Moran, ed. Boulder, CO: Women, Men, and the International Division of Labor. June Nash and Maria Patricia Fernandez-Kelly, eds. Nuclear Power: Assessing and Managing Hazardous Technology. Martin J. Pasqualetti and K. David Pijawka, eds. Mary Somerville and the Cultivation of Science 1815-1840. Elizabeth Chalmers Patterson. An Introduction to Coastal Geomorphology. John Pethick. Late Quaternary Environments of the United States , Vol. 1, The Late Pleistocene. Stephen C. Porter, ed. Planning and Ecology. R. D. Roberts and T. M. Roberts, eds. Regionalism and the Pacific Northwest. William G. Robbins, Robert J. Frank, and Richard E. Ross, eds. Environment and Health. Anthony J. Rowland and Paul Cooper. Sunbelt/Snowbelt: Urban Development and Regional Restructuring. Larry Sawers and William K. Tabb, eds. The Bad Earth. Environmental Degradation in China. Vaclav Smil. Armonk, NY: Voyage into Substance: Art, Science, Nature, and the Illustrated Travel Account, 1760–1840. Barbara Maria Stafford. The Institute of British Geographers: The First Fifty Years. Robert W. Steel. Visions of the Past. Christopher Taylor and Richard Muir. Glacial Lake Agassiz. J. T. Teller and Lee Clayton, eds. The Tule Breakers: The Story of the California Dredge. John Thompson and Edward A. Dutra. The Balkan City 1400–1900. Nikolai Todorov. Explanation, Prediction and Planning: the Lowry model. Michael J. Webber. Mercedes Reales: Hispanic Land Grants of the Upper Rio Grande Region. Victor Westphall. The World Atlas of Revolutions. Andrew J. M. Wheatcroft. The West European City, A Social Geography. Paul White. Urban Elites and Mass Transportation. J. Allen Whitt. Princeton, NJ: Urban Life In Contemporary China. Martin King Whyte and William L. Parish. The Demand for Energy in the Soviet Union. David Wilson. London and Canberra: Rethinking Geographical Inquiry. J. David Wood, ed.  相似文献   

17.

Reviews of geographic software in this article:

DEMO-GRAPHICS: WORLD POPULATIONS AND PROJECTIONS.

ESP

GAUSS.

CEMODEL S. Damus

LIMDEP. William H. Greene

MICROSTAT 4.1

OTIS

PCIPS. (Personal Computer Image Processing System). H.J. Meyers and R. Bernstein.

REGRESSION ANALYSIS OF TIME SERIES (RATS)

SPSS/PC+

URBAN DATA MANAGEMENT SOFTWARE (UDMS)  相似文献   

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BOOK REVIEWS     
Book Reviewed in this article: Rabat: Urban Apartheid in Morocco . Janet Abu -Lughod . Marketplaces in a Developing Country: The Case of Western Nigeria . Isaac Ayinde Adalemo . Farming Development and Space: A World Agricultural Geography . Bernd Andreae . Section and Party: A Political Geography of American Presidential Elections, from Andrew Jackson to Ronald Reagan . J. Clark Archer and Peter J. Taylor . Women and Space: Ground Rules and Social Maps . Shirley Ardener , ed. European Progress in Spatial Analysis . R. J. Bennett , ed. The Origins of Academic Geography in the United States . Brian W. Blouet Geographic Perspectives on Global Problems . Ronald Reed Boyce . Seasonal Dimensions to Rural Poverty . Robert Chambers , Richard Longhurst and Arnold Pacey eds. The New Nationalism and the Use of Common Spaces: Issues in Marine Pollution and the Exploitation of Antarctica . Jonathan I. Charney , ed. Communications Tomorrow: The Coming of the Information Society . Edward Cornish , ed. The Design of Suburbia . Arthur Edwards . Explorer on the Northern Plains: Lieutenant Gouverneur K. Warren's Preliminary Report of Explorations in Nebraska and Dakota in the Years 1855–56–57. With an Introduction by Frank N. Schubert . The Changing Climate: Responses of the Natural Flora and Fauna . Michael J. Ford . Essentials of Physical Geography . Robert E. Gabler , Robert J. Sager , Sheila Brazier , and Daniel L. Wise. The Road to Jaramillo . William Glen . Valued Environments . John R. Gold and Jacquelin Burgess , eds. Proximity and Preference: Problems in the Multidimensional Analysis of Large Data Sets . Reginald G. Golledge and John N. Rayner , eds. A Search for Common Ground . Peter Gould and Gunnar Olsson , eds. Geography: Its History and Concepts . Arild Holt -Jensen . A Population Geography . Huw R. Jones . The Human Mosaic: A Thematic Introduction to Cultural Geography, 3rd ed. Terry G. Jordan and Lester Rowntree . Urban Social Geography: An Introduction . Paul Knox . The Anatomy of Job Loss: The How, Why and Where of Employment Decline . Doreen Massey and Richard Meegan . The Information Society as Post-Industial Society . Yoneji Masuda . Map Librarianship, 2nd ed. Harold Nichols . India: Cultural Patterns and Processes . Allen G. Noble and Ashok K. Dutt , eds. The God that Limps: Science and Technology in the Eighties . Colin Norman . Geography: An Introductory Perspective . Robert E. Norris , Keith D. Harries and John D. Vitek . The Politics of Technology Assessment . David M. O'Brien and Donald A. Marchand . Ethnic Segregation in Cities . Ceri Peach , Vaughan Robinson and Susan Smith , eds. Churches and Church Membership in the United States, 1980 . Bernard Quinn , Herman Anderson , Martin Bradley , Paul Goetting and Peggy Shriver . Energy in Australia: Politics and Economics . Hugh Saddler . Development from Above or Below? The Dialectics of Regional Planning in Developing Countries . Walter B. Stóuhr and D. R. Fraser Taylor , eds. Human Impact on the Ecosystem . Joy Tivy and Greg O'Hare . Plants and People: Vegetation Change in North America . Thomas R. Vale . The Mapmakers: The Story of the Great Pioneers in Cartography from Antiquity to the Space Age . John Noble Wilford .  相似文献   

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