Krtalić Andrija

University of Zagreb · Institution of Chartography and Photogrametry

This paper presents a proposal to explore decentralized storage solutions and the potential of blockchain technologies, in particular, Filecoin network and Storage.NFT framework, for the secure and reliable storage of landmine locations and descriptive information for non-technical survey in humanitarian demining. The presented innovative approach...

Remote sensing methods have the potential to improve lake water quality monitoring and deci-sion-making in water management. This reviews introduces novel findings in the field of opti-cally active water quality parameters using remote sensing. It summarizes existing retrieval methods (analytical, semi-analytical, empirical, semi-empirical, and art...

Humanitarian demining is an indispensable part of any post-conflict reconstruction and rehabilitation efforts, as landmines and other unexploded ordnance (UXO) continue to pose a significant threat to civilians and infrastructure. Traditional non-technical survey demining methods are typically time-consuming, labor-intensive, and require profession...

Logical representation of knowledge enables reasoning based on formal logic, integration of heterogeneous data sources, augmentation of existing knowledge, and discovery of hidden knowledge that is hidden or unknown even to experienced professionals. Moreover, many high-performance software tools and services for logical reasoning are readily avail...

The industry of sensors and unmanned aerial systems (UAV) enables the advancement of detection of explosive objects (landmines, unexploded ordnance, improvised explosive devices) and the non-technical survey of areas contaminated by explosive threats. In the last ten years, dominates research and development of the direct detection of explosive dev...

Urban forest and vegetation conditions are an important variable in urban ecosystem management decision-making. However, it is difficult to evaluate and monitor solely on the basis of field measurements. Remote sensing technologies can greatly contribute to the faster extraction and mapping of vegetation health status indicators, on the basis of wh...

Hyperspectral sensors are passive instruments that record reflected electromagnetic radiation in tens or hundreds of narrow and consecutive spectral bands. In the last two decades, the availability of hyperspectral data has sharply increased, propelling the development of a plethora of hyperspectral classification and target detection algorithms. A...

This study aims to assess surface urban heat islands (SUHIs) pattern over the city of Zagreb, Croatia, based on satellite (optical and thermal) remote sensing data. The spatio-temporal identification of SUHIs is analysed using the 12 sets of Landsat 8 imagery acquired during 2017 (in each month of the year). Vegetation cover within the city boundar...

Svi objekti reflektiraju, apsorbiraju ili emitiraju elektromagnetsko zračenje ovisno o sastavu, stvarajući jedinstvene uzorke koje zovemo spektralni potpisi ili endmemberi. Čisti spektralni uzorci definiraju se u idealnim terenskim ili laboratorijskim uvjetima, gdje je spektar refleksije dobiven uporabom spektroradiometra fokusiranog na jednu površ...

The Toolbox implementation for removal of antipersonnel mines, submunitions and unexploded ordnance (TIRAMISU) Advanced Intelligence Decision Support System is an operational system proposed to Mine Action Centres worldwide for conducting non-technical surveys in humanitarian demining. The system consists of three modules, one of which is the modul...

Elevated soil and water salinity can lead to increased risk of crop yield and quality reduction as well as land degradation. This is especially emphasised in arid and semi-arid regions with high levels of evaporation and irrigation practice. In this study, we assessed the potential of applying Landsat-5 Thematic Mapper (TM) to evaluate low to moder...

This article describes the adaptation of an existing aerial hyperspectral imaging system in a low-cost setup for collecting hyperspectral data in laboratory and field environment and spatial distortion assessments. The imaging spectrometer system consists of an ImSpector V9 hyperspectral pushbroom scanner, PixelFly high performance digital CCD came...

The Advanced Intelligence Decision Support System (AIDSS) is the first mine action technology in humanitarian demining to combine remote sensing and data fusion methods with advanced surveillance and reconnaissance in a successful operational system. It aims to provide a reliable, efficient tool to support the process of making decisions about susp...

Mines remaining from the Homeland War are a huge problem in Croatia. The joint work of experts in humanitarian demining and military doctrines in certain geographical areas, and scientists of various profiles, has resulted in a concept for producing mine danger maps, which show areas and levels of potential hazards from mines, i.e. suspected hazard...

U članku je opisan koncept otkrivanja ilegalnih odlagališta otpada na dijelu područja grada Zagreba primjenom metoda daljinskih istraživanja na satelitskim snimkama visoke rezolucije WorldView-2. Obavljena je segmentacija vrijednosti piksela brojčanih satelitskih snimki, a nakon toga je provedena objektno orijentirana klasifikacija (u softverskom p...

The article describes the concept of detecting illegal waste landfills in a part of the City of Zagreb by using remote sensing methods on high-resolution satellite images WorldView-2. Pixel base segmentation of the high-resolution satellite images was performed, and then the object-oriented classification (in the Deffiniens Professional 5.0 softwar...

The aim of this research is to investigate possibility for interactive semi-automatic interpretation of digital images in humanitarian demining for the purpose of detection and extraction of (strong) indicators of mine presence which can be seen on the images, according to the parameters of the general geometric shapes rather than radiometric chara...

The aim of this research is to investigate possibility for interactive semi-automatic interpretation of digital images in humanitarian demining for the purpose of detection and extraction of (strong) indicators of mine presence which can be seen on the images, according to the parameters of the general geometric shapes rather than radiometric chara...

In the framework of Mine Action, the extent of Suspected Hazardous Areas (SHAs) is often overestimated. This study investigates the potential of Object‐Based Image Analysis (OBIA) for extracting Indicators of Mine Presence (IMP) to support a more precise delineation of SHAs, with the aim of ensuring an optimal use of demining resources. The study a...

The Croatian Mine Action Centre (CROMAC) reviewed, defined and marked the entire mine suspected area (MSA) in Croatia by the year 2004. However, due to the need to reduce risk and the lack of information from the deepest reaches of the MSA, its surface area was defined as larger than in reality. Mine clearance is a long-term, expensive process, and...

The digital airborne multisensor and multiresolution system for collection of information (images) about mine suspected area was created, within European commission project Airborne Minefield Area Reduction (ARC, EC IST-2000-25300, http.// www.arc.vub.ac.be) to gain a better perspective in mine suspected areas (MSP) in the Republic of Croatia. The...

In order to determine distribution of ambrosia within soybean at different fertilization rates on experimental field Potok–Popovača (2005), technique of aerial digital imaging at ground level by digital RGB camera was applied. The digital imaging was carried out within multidiscipline research team: Faculty of Agriculture, Faculty of Geodesy and Cr...

The information collected through the airborne remote sensing are useful for many scientific and practical works. In order to use collected information and existing knowledge of the observed object in the most efficient way for the purpose of solving specific problems, we have to examine their characteristics and if possible fuse them. This article...

S: Airborne acquisition of the same part of terrain was done from different heights (500 and 900 meters), by digital matrix camera which collects data about landscape in four wavelengths: three visible channels (V: 0.4–0.5 mm, 0.5–0.6 mm, 0.6–0.7mm) and one near infrared channel (NIR: 0.7–0.9 mm). The set of images of the same terrain which are cho...

The main issue of the work was the measurement of the response of particular channels of the VNIR high-resolution camera aimed at developing radiometric calibration. The analysed VNIR camera has several controllable parameters: gain, integration (exposition) time, bias, separately for near infrared (NIR) and red (R), channels and common for green a...

The analogue aerial photo cameras are using the panchromatic, color visible, color infrared film and dominate in wide area photogrammetric data acquisition but also digital cameras became available on the market. Digital airborne sensors offer new technical and opperational opportunities although require new approaches, knowledge, education and tra...