Historical maps, photoplans as well as modern satellite images and ortophotomaps are effective so... more Historical maps, photoplans as well as modern satellite images and ortophotomaps are effective sources of geographical information for heritage landscape research. The presented study aims at characterizing landscape changes and focuses on the example of the Royal Castle gardens in Warsaw, Poland. Fundamental elements of the garden structure were examined from the period between 1700 – 2015 using historical maps, photoplans, and ortophotomaps. The methodology included multitemporal data harmonization, which was performed on the basis of visual interpretation keys for photoplans and cartographic symbols. The datasets were subsequently stored, analyzed and visualized using a historical GIS. A major transformation resulting from the regulation of the Vistula river banks was identified as the creation of the Lower Garden at the end of 18th century, which covers three quarters of the total study area in 1829. After World War II, restoration of the garden commenced. The derived geohistorical knowledge can be applied in future landscape planning in order to implement better informed reconstruction strategies.
The paper presents the analysis of usefulness of WorldView-2 satellite image processing, which en... more The paper presents the analysis of usefulness of WorldView-2 satellite image processing, which enhance information concerning the cultural heritage objects. WorldView-2 images are characterised by the very high spatial resolution and high spectral resolution; that is why they create new possibilities for many applications, including investigations of the cultural heritage. The vicinities of Ilza have been selected as the test site for presented investigations. The presented results of works are the effect of research works, which were performed in the frames of the scientifi c project “Utilisation of laser scanning and remote sensing in protection, investigations and inventory of the cultural heritage. Development of non-invasive, digital methods of documenting and recognising the architectural and archaeological heritage”, as the part of “The National Programme for the Development of Humanities” of the Minister of Science and Higher Education in the period of 2012–2015.
Cities can be characterized with the roughest aerodynamic boundaries, which results in the enhanc... more Cities can be characterized with the roughest aerodynamic boundaries, which results in the enhanced turbulent motion and increased drag effect. This leads to reduced wind speeds and directly increases negative effects of living within urban areas. Urban Heat Island, decreased air quality or densely built-up residential/industrial areas occur in many cities, both in temperate and tropical regions, and are included in these negative effects. This case study investigates Warsaw, the capital of Poland, representing a dense, urban environment, located in the temperate zone. It suffers from immense air pollution levels, as well as Urban Heat Island, and the local government is seeking ways to resolve these issues. Among many mitigation techniques, air restoration and exchange system were suggested as appropriate measures, as they address many of the aforementioned issues. The essential elements of such system are ventilation corridors. This paper describes mapping these corridors utilizin...
Classification of roofing materials with the use of high resolution satellite imagery is a diffic... more Classification of roofing materials with the use of high resolution satellite imagery is a difficult issue, especially due to the fact that roofs are characterised by large diversity of shapes and textures, mainly caused by different roof surfaces illumination. To automate the process of roofing material types classification the influence of diversified illumination of individual roof surfaces should be eliminated. Topographic correction of satellite imagery may decrease influence of such effects and therefore leads to more accurate classification results. This paper presents classification results of roofing materials based on an 8-channel WorldView-2 satellite image. The digital terrain model and the digital surface model created with the use of aerial laser scanning data provided by the ISOK project were used for the topographic correction. The accuracy of the supervised classification of WorldView-2 image achieved for asbestos-cement roofing materials was at the level of 76–92%,...
Thermal properties of soils can be investigated from satellite level, using a number of satellite... more Thermal properties of soils can be investigated from satellite level, using a number of satellite systems (a.o. LANDSAT ETM+, ASTER/TERRA). Studies conducted in this work were aimed at searching for relationships between brightness temperature of soil surface layer – derived from satellite images – and various properties of soil (type of soil, class of agricultural suitability, texture of top layer of soil, land use). As a result of the analysis it was found that mainly the class of agricultural suitability and the type of soil have an important influence on brightness temperature of soil surface layer. Lower correlations with brightness temperature were observed in the case of texture of surface and under-surface layers of soil.
The study presents a compatibility analysis of gravimetric observations with passive microwave ob... more The study presents a compatibility analysis of gravimetric observations with passive microwave observations. Monitoring the variability of soil water content is one of the essential issues in climate-related research. Total water storage changes (ΔTWS) observed by Gravity Recovery and Climate Experiment (GRACE), enables the creation of many applications in hydrological monitoring. Soil moisture (SM) is a critical variable in hydrological studies. Advanced Microwave Scanning Radiometer (AMSR-E) satellite products provided unique observations on this variable in near-daily time resolutions. The study used maximum covariance analysis (MCA) to extract principal components for ΔTWS and SM signals. The analysis was carried out for the global area, dividing the discussion into individual continents. The amplitudes of gravimetric and microwave signals were computed via the complex empirical orthogonal function (EOF) and the complex conjugate EOF* to determine the regions for detailed compar...
Archiwum Fotogrametrii, Kartografii i Teledetekcji, 2004
ABSTRACT W niniejszym opracowaniu przedstawiono wyniki pierwszego etapu badań przeprowadzonych w ... more ABSTRACT W niniejszym opracowaniu przedstawiono wyniki pierwszego etapu badań przeprowadzonych w celu określenia jak duży wpływ na wynik klasyfikacji cyfrowej zdjęć satelitarnych ma moment wykonywania transformacji geometrycznej oraz algorytmy wykorzystane w trakcie tego procesu. Jak wykazały prowadzone do tej pory prace badawcze, zarówno korekcja atmosferyczna, jak i transformacja geometryczna wpływają na rezultat końcowy różnych przetworzeń cyfrowych. Wpływ taki został udowodniony m.in. przy obliczaniu temperatury powierzchni oraz wskaźników roślinności.
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this paper, we present a proposition of a fully automatic classification of VHR satellite imag... more In this paper, we present a proposition of a fully automatic classification of VHR satellite images. Unlike the most widespread approaches: supervised classification, which requires prior defining of class signatures, or unsupervised classification, which must be followed by an interpretation of its results, the proposed method requires no human intervention except for the setting of the initial parameters. The presented approach bases on both spectral and textural analysis of the image and consists of 3 steps. The first step, the analysis of spectral data, relies on NDVI values. Its purpose is to distinguish between basic classes, such as water, vegetation and non-vegetation, which all differ significantly spectrally, thus they can be easily extracted basing on spectral analysis. The second step relies on granulometric maps. These are the product of local granulometric analysis of an image and present information on the texture of each pixel neighbourhood, depending on the texture ...
Lake water quality studies were carried out in the frame of the ESA project and financed by Polis... more Lake water quality studies were carried out in the frame of the ESA project and financed by Polish Scientific Committee under the project No 5 T12E 006 24, for test site MAZURY located in north-east Poland in the Masurian Lake District. These investigations were the first in Poland using satellite CHRIS data for the determination of various lake water quality parameters. This test site is included in MEMAMON project (MONitoring of the Mecklenburg and Masurian Lake Districts). The estimations of several water quality parameters retrieved from CHRIS spectral measurements using different methods of image processing were compared with in-situ reference measurements. The values of parameters extracted from CHRIS data showed a very good correlation with lake trophy and with in-situ parameters as: Secchi disk depth, concentration of chlorophyll-a, pheophytin, total suspended matter, total phosphorous and total nitrogen. The detailed interpretation of the spatial variability of different la...
Historical maps, photoplans as well as modern satellite images and ortophotomaps are effective so... more Historical maps, photoplans as well as modern satellite images and ortophotomaps are effective sources of geographical information for heritage landscape research. The presented study aims at characterizing landscape changes and focuses on the example of the Royal Castle gardens in Warsaw, Poland. Fundamental elements of the garden structure were examined from the period between 1700 – 2015 using historical maps, photoplans, and ortophotomaps. The methodology included multitemporal data harmonization, which was performed on the basis of visual interpretation keys for photoplans and cartographic symbols. The datasets were subsequently stored, analyzed and visualized using a historical GIS. A major transformation resulting from the regulation of the Vistula river banks was identified as the creation of the Lower Garden at the end of 18th century, which covers three quarters of the total study area in 1829. After World War II, restoration of the garden commenced. The derived geohistorical knowledge can be applied in future landscape planning in order to implement better informed reconstruction strategies.
The paper presents the analysis of usefulness of WorldView-2 satellite image processing, which en... more The paper presents the analysis of usefulness of WorldView-2 satellite image processing, which enhance information concerning the cultural heritage objects. WorldView-2 images are characterised by the very high spatial resolution and high spectral resolution; that is why they create new possibilities for many applications, including investigations of the cultural heritage. The vicinities of Ilza have been selected as the test site for presented investigations. The presented results of works are the effect of research works, which were performed in the frames of the scientifi c project “Utilisation of laser scanning and remote sensing in protection, investigations and inventory of the cultural heritage. Development of non-invasive, digital methods of documenting and recognising the architectural and archaeological heritage”, as the part of “The National Programme for the Development of Humanities” of the Minister of Science and Higher Education in the period of 2012–2015.
Cities can be characterized with the roughest aerodynamic boundaries, which results in the enhanc... more Cities can be characterized with the roughest aerodynamic boundaries, which results in the enhanced turbulent motion and increased drag effect. This leads to reduced wind speeds and directly increases negative effects of living within urban areas. Urban Heat Island, decreased air quality or densely built-up residential/industrial areas occur in many cities, both in temperate and tropical regions, and are included in these negative effects. This case study investigates Warsaw, the capital of Poland, representing a dense, urban environment, located in the temperate zone. It suffers from immense air pollution levels, as well as Urban Heat Island, and the local government is seeking ways to resolve these issues. Among many mitigation techniques, air restoration and exchange system were suggested as appropriate measures, as they address many of the aforementioned issues. The essential elements of such system are ventilation corridors. This paper describes mapping these corridors utilizin...
Classification of roofing materials with the use of high resolution satellite imagery is a diffic... more Classification of roofing materials with the use of high resolution satellite imagery is a difficult issue, especially due to the fact that roofs are characterised by large diversity of shapes and textures, mainly caused by different roof surfaces illumination. To automate the process of roofing material types classification the influence of diversified illumination of individual roof surfaces should be eliminated. Topographic correction of satellite imagery may decrease influence of such effects and therefore leads to more accurate classification results. This paper presents classification results of roofing materials based on an 8-channel WorldView-2 satellite image. The digital terrain model and the digital surface model created with the use of aerial laser scanning data provided by the ISOK project were used for the topographic correction. The accuracy of the supervised classification of WorldView-2 image achieved for asbestos-cement roofing materials was at the level of 76–92%,...
Thermal properties of soils can be investigated from satellite level, using a number of satellite... more Thermal properties of soils can be investigated from satellite level, using a number of satellite systems (a.o. LANDSAT ETM+, ASTER/TERRA). Studies conducted in this work were aimed at searching for relationships between brightness temperature of soil surface layer – derived from satellite images – and various properties of soil (type of soil, class of agricultural suitability, texture of top layer of soil, land use). As a result of the analysis it was found that mainly the class of agricultural suitability and the type of soil have an important influence on brightness temperature of soil surface layer. Lower correlations with brightness temperature were observed in the case of texture of surface and under-surface layers of soil.
The study presents a compatibility analysis of gravimetric observations with passive microwave ob... more The study presents a compatibility analysis of gravimetric observations with passive microwave observations. Monitoring the variability of soil water content is one of the essential issues in climate-related research. Total water storage changes (ΔTWS) observed by Gravity Recovery and Climate Experiment (GRACE), enables the creation of many applications in hydrological monitoring. Soil moisture (SM) is a critical variable in hydrological studies. Advanced Microwave Scanning Radiometer (AMSR-E) satellite products provided unique observations on this variable in near-daily time resolutions. The study used maximum covariance analysis (MCA) to extract principal components for ΔTWS and SM signals. The analysis was carried out for the global area, dividing the discussion into individual continents. The amplitudes of gravimetric and microwave signals were computed via the complex empirical orthogonal function (EOF) and the complex conjugate EOF* to determine the regions for detailed compar...
Archiwum Fotogrametrii, Kartografii i Teledetekcji, 2004
ABSTRACT W niniejszym opracowaniu przedstawiono wyniki pierwszego etapu badań przeprowadzonych w ... more ABSTRACT W niniejszym opracowaniu przedstawiono wyniki pierwszego etapu badań przeprowadzonych w celu określenia jak duży wpływ na wynik klasyfikacji cyfrowej zdjęć satelitarnych ma moment wykonywania transformacji geometrycznej oraz algorytmy wykorzystane w trakcie tego procesu. Jak wykazały prowadzone do tej pory prace badawcze, zarówno korekcja atmosferyczna, jak i transformacja geometryczna wpływają na rezultat końcowy różnych przetworzeń cyfrowych. Wpływ taki został udowodniony m.in. przy obliczaniu temperatury powierzchni oraz wskaźników roślinności.
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this paper, we present a proposition of a fully automatic classification of VHR satellite imag... more In this paper, we present a proposition of a fully automatic classification of VHR satellite images. Unlike the most widespread approaches: supervised classification, which requires prior defining of class signatures, or unsupervised classification, which must be followed by an interpretation of its results, the proposed method requires no human intervention except for the setting of the initial parameters. The presented approach bases on both spectral and textural analysis of the image and consists of 3 steps. The first step, the analysis of spectral data, relies on NDVI values. Its purpose is to distinguish between basic classes, such as water, vegetation and non-vegetation, which all differ significantly spectrally, thus they can be easily extracted basing on spectral analysis. The second step relies on granulometric maps. These are the product of local granulometric analysis of an image and present information on the texture of each pixel neighbourhood, depending on the texture ...
Lake water quality studies were carried out in the frame of the ESA project and financed by Polis... more Lake water quality studies were carried out in the frame of the ESA project and financed by Polish Scientific Committee under the project No 5 T12E 006 24, for test site MAZURY located in north-east Poland in the Masurian Lake District. These investigations were the first in Poland using satellite CHRIS data for the determination of various lake water quality parameters. This test site is included in MEMAMON project (MONitoring of the Mecklenburg and Masurian Lake Districts). The estimations of several water quality parameters retrieved from CHRIS spectral measurements using different methods of image processing were compared with in-situ reference measurements. The values of parameters extracted from CHRIS data showed a very good correlation with lake trophy and with in-situ parameters as: Secchi disk depth, concentration of chlorophyll-a, pheophytin, total suspended matter, total phosphorous and total nitrogen. The detailed interpretation of the spatial variability of different la...
The aim of the paper is to analyse the scope of digital image processing applied to images from t... more The aim of the paper is to analyse the scope of digital image processing applied to images from the Pléiades satellite in order to highlight their information potential from the perspective of research into cultural heritage resources. The Pléiades satellite system is the first European very high resolution optical imaging system and images from it have been accessible since 2012. Due to the high resolution and operability of the system it is an interesting source of information for the study of archaeological heritage remains. A number of digital processes such as contrast enhancement, creation of colour composites, principal components analysis, image decorrelation, vegetation and soil indices used to highlight selected features – resulting from the residue of archaeological heritage remains – in an image, were analysed.
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Papers by Katarzyna Osińska-Skotak