Hasil untuk "Cadastral mapping"

Davide Ottonello, Tiziano Cosso, Simone Parmeggiani et al.

Climate change has significantly increased forest fire risk across EU, threatening our critical infrastructures providing essential for services, e.g. mobile telecommunication. AI-RON MAN project aims to deliver a tool to dynamically predict wildfire risk in areas where such infrastructures are located, supporting first responders to preventively intervene and avoiding service disruption. The tool will be based on AI techniques that enable the exploitation of existing historical datasets (including satellite images from Copernicus) to forecast future wildfire likelihood and expected severity.

Earl C. Saxon, Sandra G. Neuzil, Dipo B.C. Biladi et al.

Extent and thickness of peat deposits in Indonesia are poorly constrained although both are important factors in regulating peat use and in planning peat conservation. Innovations for mapping the extent and thickness of peat deposits were developed and tested on two highly disturbed peat domes on the islands of Sumatra and Kalimantan (Borneo), Indonesia. Peat dome surface topography was mapped by transforming radar Digital Surface Models (DSM) to Digital Terrain Models (DTM) using ortho-photogrammetric techniques and cadastral standard Ground Control Points (GCPs). Soil core samples were collected along gradient transects to determine the peat base topography. A digital peat base model (DPBM) was generated by fitting a surface to the peat base elevation points in soil cores. Combining the peat surface DTM with the peat base DPBM provides a three-dimensional model of peat extent and thickness. Maps derived from these models can inform a ‘whole of dome’ approach to resolving competing land use goals, reducing regional smoke hazard and mitigating greenhouse gas emissions. The DPBM makes a critical contribution to accurate peat dome mapping and successful peat management on Indonesia’s coastal peatlands and in any other locations where peat has formed on an undulating irregular soil surface.

A. Martyn, І. Kolhanova

Proposed scientific and methodological approaches to the development of working projects of land management regarding the implementation of measures for land reclamation, removal and transfer of the fertile soil layer, conservation of degraded and unproductive lands, improvement of agricultural and forestry lands, protection of lands from erosion, flooding, waterlogging, secondary salinization, desiccation, landslides, compaction, acidification, pollution by industrial and other wastes, radioactive and chemical substances, the structure and content of such projects has been developed. A complex of qualitative and quantitative indicators, parameters, regulating the development of working projects of land management, taking into account environmental, economic, social, natural-climatic and other conditions is proposed. Keywords: recultivation of disturbed lands, land tenure, detailed design of land management, soil cover, fertile soil layer.

B. Fetai, M. Racic, J. Tekavec et al.

Abstract. Peoples land rights are secure if they are registered in a formal cadastral system. More than 70% of global land rights are not registered in any formal cadastral system. The contemporary efforts are on accelerating the cadastral mapping process as a basis of defining land rights boundaries. Proposed surveying techniques are indirect ones – delineation of visible parcel boundaries from remote sensing imagery. This research aims at automizing the procedure of visible boundary delineation from Unmanned Aerial Vehicle (UAV) imagery through deep learning. U-Net architecture was selected to train the model and predict visible boundaries. The model was trained on an available edge detection dataset, which was the closest to our domain problem. The model was tested on a tiled UAV images. The U-Net architecture was implemented in Keras and written in Python, running on top of the TensorFlow library. The training was done through Google Colaboratory. The evaluation metrics of the trained model indicated 0.95 overall accuracy. The average percentage of correctly detected visible boundaries was almost 80% for the tiled UAV images. This percentage is very satisfying since the model was trained on everyday imagery which is very different from UAV ones. The automatic boundary detection by using U-Net is applicable mostly for rural areas where the visibility of the boundaries is continuous. In cases where the boundaries are not visible, manual delineations are still required.

A. Filho, P. Borba, V. Silva et al.

Quality control (QC) of geospatial data is relevant to urban territorial management to ensure accurate data for government to make strategic decisions when planning cities. The acquisition and control of geospatial data in the Brazilian government must follow INDE – National Data Spatial Infrastructure – through the Technical Specifications. The cadastral cartography from urban areas in Brasilia was updated and divided into 10 areas. Acquired data includes classes, features, attributes and metadata on 1: 1,000 scale. High resolution images and LIDAR data were used to assist the QC process. The first step of the QC was to check positional accuracy. Samples were applied for each class in the mapping block with 4% rate on the feature random selection and all features class had the same level of confidence. Then, three stages were automatically verified: logical consistency, commision and attribute thematic accuracy evaluations. The process also includes the visual interpretation for omission and classification, which involves a certain subjectivity. Everything was executed with QGIS, FME, Erdas Imagine, Postgresql, PostGIS and a plugin specifically developed for that, the DSGTools. The results show that in general, the quantity of errors were low. However, many errors were detected in the elements completeness and thematic accuracy, specially in áreas 1, 2, 3, 6 and 9. In the opposite, the logical consistency and positional accuracy presented the lowest quantity of errors, which does not diminish the relevance of these errors, since it compromises the usability of the data.

Francisco Fernández Romero, Lucila Muñecas, Aymara Suyai Zanotti et al.

In this article, we aim to reflect on the contributions that social cartography or participatory mapping could make towards identifying the spatiality –or the specifically spatial aspects– of social processes. To this end, we analyze a mapping process we coorganized in Cabure-í, Misiones, alongside a cooperative of small-scale farmers. This mapping aimed to highlight, for cooperative members, the spatial dimension of the current situation of land tenure in the area, which would enable to reframe precarious tenure situations as an issue on a collective scale, instead of as a problem pertaining to individual families. Furthermore, for our research team, this mapping caused us to question our own assumptions around the spatial order configured by the cooperative’s members. While we assumed that the official cadastral land divisions would only be relevant to the population insofar as they legitimize eviction orders against these small farmers –almost none of which hold land titles–, we found that these farmers have also reappropriated the cadastral map to draw their own plot demarcations.

A. Pratama, Suharno Suharno, Arief Syaifullah

Abstract: One of the key for successing the Complete Systematic Land Registration Project/ PTSL is efficient surveying and mapping. The purpose of this study was to determine variations in cadastral Surveying and mapping techniques used in PTSL East Lombok Regency. The research used qualitative-descriptive method with interview techniques, documentation and direct observation at the research location. Population and sample are all officers whom related to surveying and mapping activities in East Lombok district land office. The result of this research are  1) there are variations in cadastral Surveying and mapping techniques of the East Lombok  District Land Office; 2) an efficient Surveying technique is to use satellite observation techniques using Geodetic Geo Fennel GPS RTK devices which are an average of 50 fields per day for settlements and rice fields; 3) factors that influence are the availability of tools, human resources (measuring and mapping officers), the community as the applicant and the village apparatus, the area of land, the arrangement of land, the form of land, tool batteries, radio transmitter signals, reference points and multipath. Keywords: Surveying, Mapping, PTSL, Efficient, GPS. Intisari: Salah satu kunci keberhasilan PTSL terdapat pada pengukuran dan pemetaannya. Maka perlu dilakukan pengukuran dan pemetaan yang efisien. Tujuan penelitian ini adalah untuk mengetahui variasi teknik-teknik pengukuran dan pemetaan kadastral yang digunakan pada PTSL Kabupaten Lombok Timur. Metode penelitian yang digunakan penulis yaitu metode deskriptif kualitatif dengan teknik wawancara, dokumentasi dan observasi langsung di lokasi penelitian. Populasi dan sampel yaitu semua petugas yang berkaitan dengan kegiatan pengukuran dan pemetaan di kantor pertanahan Kab. Lombok Timur. Dari penelitian yang sudah dilakukan didapatkan data bahwa 1) terdapat variasi teknik-teknik pengukuran dan pemetaan kadastral Kantor Pertanahan Kab. Lombok Timur yaitu, 3 teknik pengukuran dan 3 teknik pemetaan; 2) teknik pengukuran yang efisien adalah dengan menggunakan teknik pengamatan satelit menggunakan alat GPS RTK Geodetic Geo Fennel yaitu rata-rata 50 bidang perhari untuk pemukiman maupun persawahan; 3) faktor-faktor yang berpengaruh adalah ketersedian alat, sumber daya manusia (petugas ukur dan pemetaan), masyarakat sebagai pemohon dan perangkat desa, luas bidang tanah, penataan bidang tanah, bentuk bidang tanah, baterai alat, sinyal pemancar radio, titik referensi dan multipath.Kata Kunci: Pengukuran, Pemetaan, PTSL, Efisien, GPS.Abstract: One of the key for successing the Complete Systematic Land Registration Project/ PTSL is efficient surveying and mapping. The purpose of this study was to determine variations in cadastral Surveying and mapping techniques used in PTSL East Lombok Regency. The research used qualitative-descriptive method with interview techniques, documentation and direct observation at the research location. Population and sample are all officers whom related to surveying and mapping activities in East Lombok district land office. The result of this research are  1) there are variations in cadastral Surveying and mapping techniques of the East Lombok  District Land Office; 2) an efficient Surveying technique is to use satellite observation techniques using Geodetic Geo Fennel GPS RTK devices which are an average of 50 fields per day for settlements and rice fields; 3) factors that influence are the availability of tools, human resources (measuring and mapping officers), the community as the applicant and the village apparatus, the area of land, the arrangement of land, the form of land, tool batteries, radio transmitter signals, reference points and multipath. Keywords: Surveying, Mapping, PTSL, Efficient, GPS. Intisari: Salah satu kunci keberhasilan PTSL terdapat pada pengukuran dan pemetaannya. Maka perlu dilakukan pengukuran dan pemetaan yang efisien. Tujuan penelitian ini adalah untuk mengetahui variasi teknik-teknik pengukuran dan pemetaan kadastral yang digunakan pada PTSL Kabupaten Lombok Timur. Metode penelitian yang digunakan penulis yaitu metode deskriptif kualitatif dengan teknik wawancara, dokumentasi dan observasi langsung di lokasi penelitian. Populasi dan sampel yaitu semua petugas yang berkaitan dengan kegiatan pengukuran dan pemetaan di kantor pertanahan Kab. Lombok Timur. Dari penelitian yang sudah dilakukan didapatkan data bahwa 1) terdapat variasi teknik-teknik pengukuran dan pemetaan kadastral Kantor Pertanahan Kab. Lombok Timur yaitu, 3 teknik pengukuran dan 3 teknik pemetaan; 2) teknik pengukuran yang efisien adalah dengan menggunakan teknik pengamatan satelit menggunakan alat GPS RTK Geodetic Geo Fennel yaitu rata-rata 50 bidang perhari untuk pemukiman maupun persawahan; 3) faktor-faktor yang berpengaruh adalah ketersedian alat, sumber daya manusia (petugas ukur dan pemetaan), masyarakat sebagai pemohon dan perangkat desa, luas bidang tanah, penataan bidang tanah, bentuk bidang tanah, baterai alat, sinyal pemancar radio, titik referensi dan multipath.Kata Kunci: Pengukuran, Pemetaan, PTSL, Efisien, GPS.

Argyros Argyridis, D. Argialas

ABSTRACT Coastal mapping provides information for coastal zone protection. Land foreshore-border mapping is important, since it is related to land and property management, raising the need for an automated foreshore delineation framework. This research develops a multi-scale GEographic Object-Based Image Analysis method for foreshore identification from single-date very high-resolution imagery and DTM. Foreshore interpretation criteria were provided by the Greek Cadastral Office; however, they defined the foreshore-borders in an ill-defined manner. Thus, an ontology was designed and implemented to formalize the implicit spectral, geometric, and spatial relationships described in the interpretation criteria, and employ them during identification. The final ontology was delivered after three design phases: specification, conceptualization, and knowledge formalization. Imagery preprocessing through anisotropic morphological levelings reduced undesired spatial detail and noise. A three-level segmentation and ontological classification approach was developed to compute proper objects and assign them into semantic categories. Class definitions were created through fuzzy restrictions, representing value ranges of the employed properties. Evaluation of the extracted foreshore area with human-interpreted reference data showed a 77.9% quality, which was satisfactory. Evaluation by comparing the extracted foreshore border to the reference data showed an average deviation of 2.4 m, which is within Greek Cadastral Office specifications.

C. Bernard, J. Mills, J. Talaya et al.

Abstract. Following several years of incremental technological developments in airborne laser scanning, the field is currently witnessing potentially revolutionary change through the introduction of new technologies, namely Single Photon (SP) and Geiger-Mode (GM) lidar. These new sensors potentially provide more efficient approaches to perform high-resolution 3D mapping, but seemingly to the detriment of accuracy and noise. Despite concerns, the technology is perceived to offer higher efficiency with respect to conventional airborne laser scanning and additional 3D mapping capability in terms of swath width, spatial resolution, acquisition time and density of range returns. These developments have led to some European National Mapping and Cadastral Agencies (NMCAs) to consider a potential change in their production pipelines, while some mapping companies are contemplating upgrading their existing airborne sensor systems. However, few open datasets and experiences are available to inform such decisions, and the community is keen to learn more about the technology and its deployment for 3D territorial mapping. These facts and considerations motivated EuroSDR Commission 1 to launch a new initiative in 2018 to better understand, explore and report to its NMCA membership the developments in SP and GM technologies. This paper describes the activities that have thus far been conducted as part of this EuroSDR initiative, comprising: a global on-line questionnaire into awareness of the technology; a preliminary investigation into a Leica SPL100 dataset of Easton, USA; and a community workshop at which a proposal to run an international benchmarking exercise was discussed.

Jingya Yan, K. Soon, S. Jaw et al.

J. Schneider, Aleš Ruda, Michaela Venzlů

The traditional agricultural landscape of the Czech Republic, with the advent of the Industrial Revolution, began to change slowly into an urban and industrial landscape. However, the biggest changes in the landscape character occurred in the period of world wars, in the post-war period and finally in the transformation of the economy after 1990. The importance of agricultural production in the Czech Republic is decreasing. However, in some rural areas, its position is still a tradition. The aim of the paper is to evaluate changes in the development of land use in the cadastral areas of the Dačice region in 1845, 1948, 2001 and 2014. Land use records were provided by the Czech Office for Surveying, Mapping and Cadastre and Cadastral Office in Dačice. Previous land use categories were regrouped into seven specific categories according to classification in 2014 arable land, gardens, permanent grassland, forests, water bodies, built-up areas, and other areas and for each category, the proportional changes were computed, explained and visualized. During the monitored period, a loss of arable land in the area was found, which is gradually grassed. The area of coniferous forests is further expanding during. From the urban point of view, there is no intensive development but some evidence of new built-up areas mainly located on the open area was identified. Based on our findings we can state that results practically copy the national development of cultivated land. Key-words: Landscape management, CORINE, Land use, Land cover, Rural region.

Both natural and artificially created spatial resources are used in the labor’s results of any subject of economical relations. There are subsoil and terrestrial resources, natural resource resources, water resources and air resources, engineering resources and facilities, as well as interiors of buildings and all exterior open spaces of urbanized and non-urbanized areas. The connection of spatial cells occupied by different types of economic and intellectual activity with their economic results, and accordingly with the amount of budget revenues in the simplest form can be established depending on the parameters of land allocated in urban planning documentation for these activities. On this basis, one can find a simple solution to the problem of ensuring the necessary and sufficient budgetary saturation of administrative-territorial formations. It can be based on cadastral value, mapping and accounting of land plots, land tax rates and lease payments. Urban planning mechanisms of spatial organization of society in the form of functional and urban zoning, types of permitted use of lands can play a key role in creating conditions of sustainable socio-economic development of the entire hierarchy of administrative-territorial formations.

R. Roschlaub, J. Batscheider

R. MeenkshiBai, G. Vidyavathi, G. Yadahalli et al.

M. N. Hashim, Muhammad Imzan Hassan, Alias Abdul Rahman

Abstract. The rapid development of a country has resulted in limited land use. This is indirectly encouraging multilayer development (strata) especially for the development of residential properties such as condominiums, apartments and others. The idea of having 3D database for the cadastral system has been discussed for a good and efficient management in Malaysia. The development in 3D GIS will make a 3D cadastral realizable. In Malaysia, the current 2D cadastre system is regularly updated by the National Mapping Agency (NMA) and Land Offices (LO). However, this 2D information may not be able to serve complex situations. The 3D strata acquisition and 3D modelling are important for strata title to manage the Right, Restriction and Responsibility (RRRs). This means needs to the system extended into 3D cadastre environment. One of the data acquisition techniques is utilizing LiDAR data to solve the problem. 3D geospatial objects could be generated from the captured points cloud. The NMA attempts to make use of LiDAR datasets for strata registration purposes. This paper also discuss the needs the 3D strata registration via XML and IndoorGML for future 3D strata development in Malaysia.

Elizabeth Jane Shepherd, Gianluca Cantoro, Fabio Remondino

WWII aerial photo reconnaissance played a decisive role in the success of the Allied campaigns in Europe. Repeated aerial surveys provided information to monitor enemy lines, identify targets, plan attacks and assess damages inflicted by aerial bombing. Reconnaissance activity in the 1943-45 Italian campaign produced an awesome number of aerials, 883,005 of whom are kept today by ICCD-Aerofototeca Nazionale (AFN) in Rome. The often massive scale of bombing has left a lasting legacy across the landscape, as is shown by the problems in dealing with unexploded ordnance (UXO), still retrieved on a nearly daily basis. The AFN collection is a powerful, though still underdeveloped record of the landscape of wartime Italy and is essential for the plotting of UXO hazard maps. The article focuses on the main steps to be taken in order to exploit and share it.

S. Jackson

P. Tutzauer, N. Haala

Abstract. Recent years have shown a shift from pure geometric 3D city models to data with semantics. This is induced by new applications (e.g. Virtual/Augmented Reality) and also a requirement for concepts like Smart Cities. However, essential urban semantic data like building use categories is often not available. We present a first step in bridging this gap by proposing a pipeline to use crawled urban imagery and link it with ground truth cadastral data as an input for automatic building use classification. We aim to extract this city-relevant semantic information automatically from Street View (SV) imagery. Convolutional Neural Networks (CNNs) proved to be extremely successful for image interpretation, however, require a huge amount of training data. Main contribution of the paper is the automatic provision of such training datasets by linking semantic information as already available from databases provided from national mapping agencies or city administrations to the corresponding facade images extracted from SV. Finally, we present first investigations with a CNN and an alternative classifier as a proof of concept.

Yasemin Şişman, A. Şişman

Claudia Maltoni, Claudio Rossi, Guzmán Sánchez

Due to climate change, floods, wildfires and other extreme weather events are becoming more frequent and intense. This scenario poses a challenge for current risk management systems. I-REACT project aims to develop a solution through the integration and modelling of data coming multiple sources. Information from European monitoring systems, earth observations, historical information and weather forecasts will be combined with data gathered by new technological developments created by I-REACT. These include a mobile app and a social media analysis tool to account for real-timeccrowdsourced information, wearables to improvecpositioning, as well as augmented reality glasses to facilitate reporting and information visualisation by first responders. With this approach, I-REACT will be able to empower stakeholders in the prevention and management of disasters. Citizens will be involved in reporting first-hand information, policymakers will be supported in the decision-making process, and first responders will be equipped with essential tools for early warning and response. At the same time, private companies could leverage specific set of I-REACT components to improve their business, when linked to disaster management. Overall, I-REACT aims to be a European-wide contribution to build more secure and resilient societies to disasters.