Cadastral maps are an important component of land administration in most countries. In virtually all developed countries, the needs of computerized land and geographic information systems (LIS/GIS) has given urgent im...Cadastral maps are an important component of land administration in most countries. In virtually all developed countries, the needs of computerized land and geographic information systems (LIS/GIS) has given urgent impetus to computerizing cadastral maps and creating digital cadastral data bases (DCDB). This process is creating many institutional, legal, technical and administrative problems. This desire to establish DCDBs is being given increased impetus due to a new range of enabling technologies such as satellite position fixing (GPS), improved spatial data collection techniques such as digital theodolites and “soft copy” photogrammetry, as well as a vast range of new information and communications technological tools, thus contributing to the advancement and keeping up with the great countries. This paper presents the problem of cadastral maps. The hitherto existing cadastre, consisting of paper maps and land registers, is now becoming insufficient. Its shortcomings force developments leading to its improvement. One of the ways is the creation of a Land Information System. A digital cadastral map is the main component of this system. The structure and information content of the map is presented, its differences from analogue maps are shown, and the process of map creation is described. A digital cadastral map can be the basis for additional thematic layers, successively converting it into a complex system for management of administrative units.展开更多
This paper presents the result of an investigation into the utility of the Structure Sensor developed by Occipital Inc.and accuracy of its output for 3D surveying of interiors of buildings in relation to Surveying(Cad...This paper presents the result of an investigation into the utility of the Structure Sensor developed by Occipital Inc.and accuracy of its output for 3D surveying of interiors of buildings in relation to Surveying(Cadastral Survey)Regulation 2005 in Victoria,Australia.The paper investigates data acquisition issues,defines guidelines to obtain the best reconstruction result,and evaluates the result against the requirements set by the Regulation.The findings suggest a mixed result.The sensor delivers more accurate outputs for the smaller room sizes.Also,the accuracy does not meet the requirements,but it was found to be close to what is expected in the Regulation.Finally,the paper argues that the device is user-friendly enough to be used by non-experts for crowdsourcing indoor information and,the accuracy of its output can meet the needs of other domains such as indoor navigation and public safety.展开更多
新形势下,地勘单位发展面临巨大的挑战,转型升级是最好的出路。以服务为引领,以创新为驱动,发展测绘事业,将能够带动地勘单位多元化发展。文章从测绘地信发展市场需求入手,分析了地勘单位测绘地理信息产业的发展现状和存在的问题,从人...新形势下,地勘单位发展面临巨大的挑战,转型升级是最好的出路。以服务为引领,以创新为驱动,发展测绘事业,将能够带动地勘单位多元化发展。文章从测绘地信发展市场需求入手,分析了地勘单位测绘地理信息产业的发展现状和存在的问题,从人才、装备、技术、项目等四个方面提出了地勘单位测绘地理信息产业的发展规划。建议:地勘单位应结合自身实际,以传统地质项目为依托,发展以无人机航测、三维激光扫描为基础手段的测绘地理信息高端装备,发展以遥感技术、地理信息技术、S A R技术为核心的测绘地理信息新技术,发展以标准化项目管理、优秀项目团队、优质项目服务为目标的地勘单位测绘地理信息产业,以适应新时期国家重大战略和经济社会高质量发展的需求。展开更多
文摘Cadastral maps are an important component of land administration in most countries. In virtually all developed countries, the needs of computerized land and geographic information systems (LIS/GIS) has given urgent impetus to computerizing cadastral maps and creating digital cadastral data bases (DCDB). This process is creating many institutional, legal, technical and administrative problems. This desire to establish DCDBs is being given increased impetus due to a new range of enabling technologies such as satellite position fixing (GPS), improved spatial data collection techniques such as digital theodolites and “soft copy” photogrammetry, as well as a vast range of new information and communications technological tools, thus contributing to the advancement and keeping up with the great countries. This paper presents the problem of cadastral maps. The hitherto existing cadastre, consisting of paper maps and land registers, is now becoming insufficient. Its shortcomings force developments leading to its improvement. One of the ways is the creation of a Land Information System. A digital cadastral map is the main component of this system. The structure and information content of the map is presented, its differences from analogue maps are shown, and the process of map creation is described. A digital cadastral map can be the basis for additional thematic layers, successively converting it into a complex system for management of administrative units.
基金This work was supported by the University of Melbourne[grant number 501327].
文摘This paper presents the result of an investigation into the utility of the Structure Sensor developed by Occipital Inc.and accuracy of its output for 3D surveying of interiors of buildings in relation to Surveying(Cadastral Survey)Regulation 2005 in Victoria,Australia.The paper investigates data acquisition issues,defines guidelines to obtain the best reconstruction result,and evaluates the result against the requirements set by the Regulation.The findings suggest a mixed result.The sensor delivers more accurate outputs for the smaller room sizes.Also,the accuracy does not meet the requirements,but it was found to be close to what is expected in the Regulation.Finally,the paper argues that the device is user-friendly enough to be used by non-experts for crowdsourcing indoor information and,the accuracy of its output can meet the needs of other domains such as indoor navigation and public safety.
文摘新形势下,地勘单位发展面临巨大的挑战,转型升级是最好的出路。以服务为引领,以创新为驱动,发展测绘事业,将能够带动地勘单位多元化发展。文章从测绘地信发展市场需求入手,分析了地勘单位测绘地理信息产业的发展现状和存在的问题,从人才、装备、技术、项目等四个方面提出了地勘单位测绘地理信息产业的发展规划。建议:地勘单位应结合自身实际,以传统地质项目为依托,发展以无人机航测、三维激光扫描为基础手段的测绘地理信息高端装备,发展以遥感技术、地理信息技术、S A R技术为核心的测绘地理信息新技术,发展以标准化项目管理、优秀项目团队、优质项目服务为目标的地勘单位测绘地理信息产业,以适应新时期国家重大战略和经济社会高质量发展的需求。
