Sisi Zlatanova

Sisi Zlatanova
UNSW Sydney | UNSW · GRID - School of Built Environment A.D.A

PhD in 3DGIS

About

435
Publications
227,347
Reads
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7,431
Citations
Introduction
Sisi Zlatanova is a professor at the Faculty of Built Environment, UNSW Sydney. Sisi does research in 3D geospatial information, 3D indoor modelling and navigation, 3D data representation (vector and voxel) and data structuring, 3D data integration
Additional affiliations
January 2018 - June 2021
UNSW Sydney
Position
  • Professor (Full)
Description
  • Head GRID, SHARP appointment
November 2014 - December 2017
Delft University of Technology
Position
  • Professor (Associate)
February 2000 - November 2014
Delft University of Technology
Position
  • Research Assistant

Publications

Publications (435)
Article
Path planning has become a predominant issue for unmanned aerial vehicles (UAVs), especially in complex indoor environments. Existing solutions for UAV indoor path planning are strongly limited due to their high computational complexity, slow convergence speed and poor flight paths. In this study, a set of grid-optimized UAV indoor path planning al...
Article
Full-text available
The interest in 3D indoor models has been continuously growing. Most such models are made available as point clouds or BIM (e.g., IFC), the former being generally provided as unstructured information while the latter comes highly structured and rich in semantic information. IFC models are consequently more suitable for direct use, but they can be v...
Conference Paper
ABSTRACT: Road surface extraction is crucial for 3D city analysis. Mobile laser scanning (MLS) is the most appropriate data acquisition system for the road environment because of its efficient vehicle-based on-road scanning opportunity. Many methods are available for road pavement, curb and roadside way extraction. Most of them use classical approa...
Article
Full-text available
Road surface extraction is crucial for 3D city analysis. Mobile laser scanning (MLS) is the most appropriate data acquisition system for the road environment because of its efficient vehicle-based on-road scanning opportunity. Many methods are available for road pavement, curb and roadside way extraction. Most of them use classical approaches that...
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This research aims to bridge the information gap pertaining to the utilization of building information modeling (BIM) in steel building projects. Therefore, a systematic literature review (SLR) was conducted to synthesize the available uses. This research involved three phases—planning, execution, and reporting—according to the PRISMA guide, which...
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Bushfires are an intrinsic part of the New South Wales’ (NSW) environment in Australia, especially in the Blue Mountains region (11400km2), that is dominated by fire prone vegetation that includes heathland. Many of the Australian native plants in this region are fire-prone and combustible, and many species even require fire to regenerate. The clas...
Article
With the development of cities, the indoor structures of contemporary public or commercial buildings are becoming increasingly complex. Accordingly, the need for indoor navigation has arisen. Among the indoor positioning technologies, quick response (QR) code, a low‐cost, easily deployable, flexible, and efficient approach, has been used for indoor...
Conference Paper
Digital technologies are supposed to be used to obtain higher efficiency and quality in off-site construction. This research is an on-going thesis project and aims to identify the challenges and expectations of digital technologies’ implementation in off-site construction and develop a practical application for promoting one of the promising digita...
Conference Paper
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Off-site construction has generally been regarded as a more productive construction method, and digital technologies are considered to provide higher productivity and safety. However, there is a lack of research on how digital technologies can be best utilized to achieve the potential advantages of off-site construction. Some literature has made ex...
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Voxel-based data structures, algorithms, frameworks, and interfaces have been used in computer graphics and many other applications for decades. There is a general necessity to seek adequate digital representations, such as voxels, that would secure unified data structures, multi-resolution options, robust validation procedures and flexible algorit...
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This paper presents an approach for the automatic abstraction of built environments needed for pedestrian dynamics from any building configuration. The approach assesses the usability of navigation mesh to perform realistically pedestrian simulation considering the physical structure and pedestrian abilities for it. Several steps are examined inclu...
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The negative climate change induced by rapid urbanization has become a global environmental issue. Numerous studies have been devoted to the microclimate regulation functions performed by urban vegetation. Digital city information modeling provides a powerful tool for various simula-tions and data analytics for the sustainable development of urban...
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With the growing complexity of indoor living environments, people have an increasing demand for indoor navigation. Currently, navigation path options in indoor are monotonous as existing navigation systems commonly offer single-source shortest-distance or fastest paths. Such path options might be not always attractive. For instance, pedestrians in...
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Prefabricated construction has gained increasing popularity to meet the needs of rapid city development in recent years. Installation quality check is a critical task in prefabricated construction, and currently mostly still carried out manually, which is slow and ineffective. To provide an efficient and practical quality check method to replace th...
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Facing the increased frequency of disasters and resulting in massive damages, many countries have developed their frameworks for Disaster Risk Management (DRM). However, these frameworks may differ concerning legal, policy, planning and organisational arrangements. We argue that geospatial data is a crucial binding element in each national framewor...
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Accurate geopositioning of optical satellite imagery is a fundamental step for many photogrammetric applications. Considering the imaging principle and data processing manner, SAR satellites can achieve high geopositioning accuracy. Therefore, SAR data can be a reliable source for providing control information in the orientation of optical satellit...
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Geo-social community detection over location-based social networks combining both location and social factors to generate useful computational results has attracted increasing interest from both industrial and academic communities. In this paper, we formulate a novel community model, termed geo-social group (GSG), to enforce both spatial and social...
Article
Emergency evacuation throughout and after the flood is a crucial task to mitigating more instantaneous impacts, whilst refining social resilience for longer-term recovery. To enhance the evacuation process, the determination and prediction of safe areas before a flood is necessary. Indeed, the safe area or shelter in place could play two roles duri...
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The world is facing the second year of the Covid-19 global pandemic that has affected many around the world. Despite the challenges, ISPRS is organizing its second consecutive virtual Congress to motivate, inspire and connect geospatial researchers around the globe to share the knowledge and communicate their research results. This year Commission...
Article
Full-text available
The world is facing the second year of the Covid-19 global pandemic that has affected many around the world. Despite the challenges, ISPRS is organizing its second consecutive virtual Congress to motivate, inspire and connect geospatial researchers around the globe to share the knowledge and communicate their research results. This year Commission...
Article
Full-text available
This paper presents in detail the legislation and regulation related to the use and ownership of building complexes with multiple units (apartments, condominiums) in Saudi Arabia for the 3D registration of the legal spaces. The 3D Land Administration Domain Model (LADM)country profile for Saudi Arabia must be able to represent the identified concep...
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Seamless navigation has attracted lots of attention and many methods have been reported in the literature or made available as commercial applications. The process of navigation can be interpreted as a continuous movement of 3D objects from one unoccupied 3D indoor/ outdoor space to another. From a technical perspective, a 3D navigation model is on...
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Rapid urbanization has led vertical infrastructural growth in different countries with differing economic development levels and social systems. The two cities, Prague and Delhi, are the capital cities of their respective countries and have significant vertical developments. However, the two cities represent the urban areas from countries having di...
Article
Building Information Modeling (BIM) represents a new technology which supports the creation and management of a construction project for buildings. The most well-known open BIM standard, the Industry Foundation Classes (IFC), provides the detailed 3D geometry and rich spatial semantics. It has drawn growing attention of researchers working in geogr...
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Light field cameras capture spatial and angular information simultaneously. A scene point in the 3D space appears many times on the raw image, bringing challenges to light field camera calibration. This paper proposes a novel calibration method for standard plenoptic cameras by using corner features from raw images. We select appropriate micro-lens...
Article
Light field cameras capture spatial and angular information simultaneously. A scene point in the 3D space appears many times on the raw image, bringing challenges to light field camera calibration. This paper proposes a novel calibration method for standard plenoptic cameras by using corner features from raw images. We select appropriate micro-lens...
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This paper provides an overview and the results of the Australia-Japan 2020 Quasi Zenith Satellite System (QZSS) Emergency Warning System trial project. The project aimed to evaluate and demonstrate the feasibility of utilising the QZSS system to support emergency warning and response in Australia. The trial has focussed on bushfire and tsunami war...
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Across the world, nature-triggered disasters fuelled by climate change are worsening. Some two billion people have been affected by the consequences of natural hazards over the last ten years, 95% of which were weather-related (such as floods and windstorms). Fires swept across large parts of California, and in Australia caused unprecedented destru...
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With the growth of urban population and the increasing urban density, urban green space has become a kind of precious and limited resources. It not only has a positive impact on the health of urban residents with high work-life pressure but also offers opportunities as part of blue-green solutions for sustainable urban water management. Therefore,...
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Three-dimensional (3D) raster data (also named voxel) is important sources for 3D geo-information applications, which have long been used for modelling continuous phenomena such as geological and medical objects. Our world can be represented in voxels by gridding the 3D space and specifying what each grid represents by attaching every voxel to a re...
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Drastic changes in the climate has revised the face of disaster management: it is contributing to abnormal intensity, frequency and duration of extreme weather and climate events. The year 2020 started with more than 100 fires burning across Australia. Hazard reduction burning has become a resolute and primary land management technique that contrib...
Article
Full-text available
Across the world, nature-triggered disasters fuelled by climate change are worsening. Some two billion people have been affected by the consequences of natural hazards over the last ten years, 95% of which were weather-related (such as floods and windstorms). Fires swept across large parts of California, and in Australia caused unprecedented destru...
Article
Full-text available
Off-site construction (OSC) is known as an efficient construction method that could save time and cost, reduce waste of resources, and improve the overall productivity of projects. Coupled with digital technologies associated with the Industry 4.0 concept, OSC can offer a higher rate of productivity and safety. While there is a rich literature focu...
Article
3‐D modeling has been the subject of increased attention in the past two decades. Technology has been developed to such a degree that large datasets can be collected, processed, analyzed, managed, and visualized in reasonable time. Domain applications are looking with much interest at 3‐D representations, acknowledging the increased possibilities f...
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Indoor 3D models are digital representations of building interiors reconstructed from scanned data acquired by laser scanners, digital depth (RGBD) cameras, and CAD drawings. Consequently, there is noise in the source data and a notable variety in the methods used to treat the noise and to process these data into reconstructed models. Alas, the cor...
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Rapid urbanization has resulted in high-density construction, more impervious area and with increasing threats of urban stormwater, drought and negative influences on human wellbeing. Although there has been progress in sustainable stormwater management and the promotion of human wellbeing with green space, the research has been conducted from a mo...
Conference Paper
Full-text available
Navigation is very critical for our daily life, especially when we have to go through the unfamiliar areas where the spaces are very complex, such as completely bounded (indoor), partially bounded (semi-indoor and/or semi-outdoor), entirely open (outdoor), or combined. Current navigation systems commonly offer the shortest distance/time path, but i...
Article
To explore the relationship between the objective morphological features and subjective scenic beauty preference of landscape open space units, this study improves the research method for morphology quantification, scenic beauty preference survey and relationship analysis. Fourteen morphology factors representing the features of boundary, domain an...
Article
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Indoor environments differ from outdoor in many aspects. This, added to the limitations faced by other common standards for urban features reinforced the need of setting a dedicated standard for indoor applications. IndoorGML was born in this context to provide the basic concepts, data models, and standard that meet the requirements of indoor spati...
Article
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One of the main problems of rescue workers in confrontation of fired complex buildings is the lack of sufficient information about the building indoor environment and their emergency exit ways. Building information modeling (BIM) is a database for building a 3D model of building information to create a 3D building geometry network model. This paper...
Article
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The unusual circumstances created by the coronavirus pandemic has impacted recent activities of Commission IV. The situation also provides an excellent opportunity to connect the work of the Commission to addressing an important global problem. Managing the social and economic challenges brought by increased complexity and interconnectivity of acti...
Article
Full-text available
In 2019/20 over 100 severe bushfires burned across the continent of Australia. The severity of these fires was exacerbated by many factors, including macroclimatic effects of global warming and, at the meso and micro scales, land management practices. The bushfire phenomenon cannot be stopped, however better management practices can help counter th...
Article
Full-text available
The unusual circumstances created by the coronavirus pandemic has impacted recent activities of Commission IV. The situation also provides an excellent opportunity to connect the work of the Commission to addressing an important global problem. Managing the social and economic challenges brought by increased complexity and interconnectivity of acti...
Article
A large proportion of indoor spatial data is generated by parsing floor plans. However, a mature and automatic solution for generating high-quality building elements (e.g., walls and doors) and space partitions (e.g., rooms) is still lacking. In this study, we present a two-stage approach to indoor mapping and modeling (IMM) from floor plan images....
Article
Vertical enclosure is incapable of describing the permeation of landscape space enclosures. Physical and visual enclosures are identified to compensate for enclosure cognition inadequacies. Physical enclosures reflect the restriction of behavior, and visual enclosures embody the viewshed extension range. An identification method is proposed and imp...
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Full-text available
Frequent, devastating emergencies As a consequence of the rapidly changing climate, devastating emergencies unfold more frequently, their consequences last longer and reach deeper. The Australian bushfire season 2019-2020 led to the largest non-war, domestic defense force deployment and evacuation in Australian history. The recurrent nature of emer...
Article
Change detection is essential to keep 3D city models up-to-date. LiDAR data with high accuracy are used to create 3D city models. However, updating LiDAR data at state or nation level often takes around a decade. Very high resolution (VHR) stereo images, with often yearly updating rate and dense 3D information, provide an option for validating and...
Article
The integration of Building Information Models (BIM) in environments such as Geographic Information System (GIS) is currently one of the main investigated research problem in the urban spatial information community. Among the several issues that are involved in the adequate realisation of such type of integration, one particularly relevant to the G...
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Outdoor navigation is widely used in daily life, but faces various issues related to the fidelity of outdoor navigation networks. For instance, agents (pedestrians) are often guided via unrealistic detours around places without clear paths (e.g., squares) or if there are vertical constraints such as overpasses/bridges. This is partly explained by t...
Article
The users' movements in the indoor environments differ based on the condition of the environments. During an indoor emergency, an efficient evacuation is required to help the users to move to the safe areas. Many types of incidents could impact the movements of users and this requires studying the behavior of the people during the evacuation. The r...
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Over recent decades, more and more cities worldwide have created semantic 3D city models of their built environments based on standards across multiple domains. 3D city models, which are often employed for a large range of tasks, go far beyond pure visualization. Due to different spatial scale requirements for planning and managing various built en...
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In spatial science and urban applications, "space" is presented by multiple disciplines as a notion referencing our living environment. Space is used as a general term to help understand particular characteristics of the environment. However, the definition and perception of space varies and these variations have to be harmonised. For example, spac...
Article
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Over the last decades, building models have become valuable for a multitude of application scenarios, such as visualisation, simulations and decision support. As the growth of multi-source data consisting of semantic and 2D/3D spatial information, data management becomes feasibility means for facilitating the development and deployment of building...
Article
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Machine learning algorithms can be well suited to LiDAR point cloud classification, but when they are applied to the point cloud classification of power facilities, many problems such as a large number of computational features and low computational efficiency can be encountered. To solve these problems, this paper proposes the use of the Adaboost...
Conference Paper
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This paper presents the research and development of a volumetric 3D visibility analysis application to assess public space in regards to safety and security. While most of the academic literature on space visibility concentrates on developing viewsheds from a specific viewpoint, this work integrates dynamic scenarios and real-time calculation of sp...
Conference Paper
With the adoption of indoor positioning solutions, which enable for a variety of location-based spatial services, a number of indoor map standards and formats have been proposed in the last decade. As each of these indoor map standard has its own purpose, the strengths and weaknesses are necessary to be understood and analyzed before selecting one...
Conference Paper
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This paper presents a system architecture for structuring and manipulation of Building Information Models (BIM), three-dimensional (3D) geospatial information, point clouds and time series data obtained from sensors. The system consists of four layers including data pre-processing, data structuring and storage, system interface and front-end data m...
Article
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Egress (or Evacuation) modelling has the purpose to simulate how the people inside a building can move outside in a safe manner and as quick as possible in case of an emergency. The goal can be to assess the safety of an existing building or a building design, to establish evacuation routes and install signage, or even to give real-time guidance to...
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3D modelling of precincts and cities has significantly advanced in the last decades, as we move towards the concept of the Digital Twin. Many 3D city models have been created but a large portion of them neglect representing terrain and buildings accurately. Very often the surface is either considered planar or is not represented. On the other hand,...