共查询到20条相似文献，搜索用时 89 毫秒
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本文从我国编制地图理论与著作权保护理论的结合,较全面地探讨了编制地图作品的独创性特征,主体特征与版权保护等问题,并通过对目前地图作品编制过程及其版权保护的司法实践分析,提出了建立编制地图作品规范化技术档案,组建具有权威性的地图作品版权保护专业鉴定委员会机构,确立地图作品侵权认定,由被皓承担举证责任的举证责任分担原则等一系列进一步完善编制地图著权保护的立法建议。 相似文献
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地图是大地的素描。随着科技的迅猛发展,地图由纸质发展成为互联网上一道靓丽的风景线。2011年1月18日,天地图正式版在网络上展现。经多次改进,天地图已成为深受网民喜爱的中国区域内基础地理信息数据资源最全,并具有自主知识产权的综合性互联网地图服务网站。 相似文献
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在测绘产品中使用最多的莫过于地图了，从传统的纸质地图发展到现在的电子地图，可以说，地图产品已经与我们的生活息息相关了。另一方面，国民经济发展的速度随着我国改革、开放的不断深入而越来越快，对地图产品的需求也越来越大。但是，大多数的地图产品是有版权的，特别是当今社会对电子地图的需求不断扩大，如何既能满足社会的需求又能有效保护地图生产者的权益，已成为电子地图权益人和使用人最为关心的问题了。本文通过对Micmstation V8．1版本中的矢量地图保护功能的简要介绍，提出了对我国有版权的电子地图产品的保护设想。 相似文献
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可视水印是矢量地图数据版权保护的一项有效手段。本文分析了矢量地图数据和栅格数据可视水印实现机制的异同,并根据矢量地图数据特点,设计了插件式可视水印模型,并基于ArcGIS平台,实现了可视水印插件原型系统。实验效果证明该方案具有可行性,能够有效保护矢量地图数据版权。 相似文献
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为了使影像地图跨媒介传递色彩失真最小,本文提出一种面向影像地图色域映射算法。首先,使用双边滤波对影像地图进行预处理,分解出低频和高频图像,根据人眼空间域视觉感知理论,对低频图像采用保护彩度裁切法,对高频图像采用保护明度压缩法,最后融合两幅映射后图像并再次映射至目标色域,使用图像结构相似度和S-CIELAB色差模型进行客观评价,并与HPMINΔE法、SGCK法及Bala提出算法进行比较。结果表明,面向影像地图色域映射算法在图像结构相似度和图像色差上都比其他算法稍好。因此,面向影像地图色域映射算法能提高影像地图的映射质量,可同时保护影像地图影像细节和矢量符号色彩。 相似文献
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为构建和表达顾及外拓扑的产权体，以现有楼层平面图为基础，采用"推拉"二维图形的方式生成产权体三维模型，并使用3-组合图表达产权体的内拓扑与外拓扑，提出基于带权关联图与关联矩阵的"推拉"间隔传递方法，基于老新间隔对照关系的组合图飞镖生成方法以及组合图β关系的添加算法。通过"推拉"平面图的方式可以生成产权体三维模型；3-组合图可以表达产权体的内拓扑和外拓扑，并能提高构体效率。 相似文献
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探讨了灾害保障图的研究现状,基于"区域灾害系统"理论,给出了灾害保障图较为翔实的定义和分类,并着重从表达内容、表示方法、表现形式和符号设计方面对其可视化表达规律进行了探究。 相似文献
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The successes and shortcomings of environmental protection maps published in the USSR are reviewed. Emphasis is on the problems of defining map content and the techniques which can be employed to enhance the readability of the maps. Speed and accuracy of map reading are evaluated and a compromise is sought between these two contradictory requirements. Translated by Edward Torrey, Alexandria, VA 22038 from: Izvestiya Vsesoyuznogo Geograficheskogo Obshchestva, 1988, No. 5, pp. 453-459. 相似文献
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九寨沟是国家级自然保护区和重点风景名胜区。并载入联合国的《世界自然造产名录》．该沟生态环境十分脆弱，科学研究程度还相当低．两个国家自然科学基金课题对基生态环境进行了综台系统的研究，在此基础上编制而成的专题系列图填补了该区没有一套较完整图件的空白．文章介绍了系列图的编制背景、意义、选题、方法及特点等内容． 相似文献
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Daniel “daan” Strebe 《制图学和地理信息科学》2018,45(6):529-538
Equivalence (the equal-area property of a map projection) is important to some categories of maps. However, unlike for conformal projections, completely general techniques have not been developed for creating new, computationally reasonable equal-area projections. The literature describes many specific equal-area projections and a few equal-area projections that are more or less configurable, but flexibility is still sparse. This work develops a tractable technique for generating a continuum of equal-area projections between two chosen equal-area projections. The technique gives map projection designers unlimited choice in tailoring the projection to the need. The technique is particularly suited to maps that dynamically adapt optimally to changing scale and region of interest, such as required for online maps. 相似文献
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D. P. Rao 《Journal of the Indian Society of Remote Sensing》1978,6(2):49-56
With the launching of LANDSAT—1 in 1972 followed by LAND-SAT-2 and 3 in 1975 and 1978 respectively, a new tool is now available to earth scientists for a synoptic overview of the earth forms. Existing small scale geological maps, soil maps and forest resource maps are constantly being updated with the help of LANDSAT imagery. The paper highlights the utility of LANDSAT imagery in preparing small scale geomorphological maps by citing examples from such diversified terrains as the Himalaya and rain forest area in the north and NE India and part of east coast. The advantage of conjunctive use of space craft, aircraft and ground data in enhancing the detail and quality of the map is discussed. Further the direct relationship between landform and landuse is brought out in the map. The methodology provides a basis for preparing a small scale geomorphological map for the country, the like of which does not exist so far. In addition, the map provides a basis for attracting attention on exploration of minerals, ground water, morphoconservation, flood protection programming and coastal management. The nominal cost and speed of preparing such map are discussed. 相似文献
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国家空间地理信息资源的保密管理与开放使用中的几个问题 总被引：2，自引：0，他引：2
针对社会公众对国家空间地理信息资源,特别是国家基本比例尺地形图的开放使用与保密问题中的一些模糊认识,从知识产权属性、地形图的生产原理以及在空间地理信息资源共享中应用互联网技术应注意的问题等几个方面予以廓清,并介绍了国家有关方面在国家空间地理信息资源的开放使用与保密管理方面的研究思路。 相似文献
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全面、现势的土地利用基础图件是一个国家摸清其土地资源家底,进行土地资源合理利用、规划和科学管理的基础和前提条件。本文从数据源、处理手段与采用的技术方法对土地利用基础图件更新的技术体系进行了研究,基于图件更新技术流程的三个主要环节对图件更新方法进行了系统分析和分类总结,继而提出了一套集RS/GIS/GPS技术于一体的图件更新技术方法与流程;同时依托具有自主知识产权的遥感数据处理平台CASM Im-ageInfo,将整个作业流程一体化,构建了适合我国具体国情的实用和可操作性强的土地利用基础图件更新软件系统,实现了土地利用基础图件的快速更新。 相似文献
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ABSTRACT This research examines how people subjectively perceive the disclosure risk of a map using original data collected in an online survey with 856 participants. The results indicate that perceived disclosure risk increases as the amount of locational information displayed on a map increases. Compared to point-based maps, perceived disclosure risk is significantly lower for kernel density maps, convex hull maps, and standard deviational ellipse maps. The results also revealed that perceived disclosure risk is affected by map scale and the presence of information of other people on a map. For geomasking methods, perceived disclosure risk decreases as aggregation level increases and as relocation distance increases. However, aggregation methods (point to polygon) are more effective in preventing the re-identification of individuals when compared to relocation methods (point to point). Lastly, the perceived disclosure risk of a map that displays socially-vulnerable people is significantly higher than that of a map that displays non-vulnerable groups. Specifically, a map displaying the private locations of elementary school students has the highest perceived disclosure risk. Based on the results, a set of geoprivacy protection guidelines for mapping people’s private locations to minimize people’s perceived disclosure risk is proposed. Implications for mapping infectious diseases like the COVID-19 are also discussed. 相似文献