Zoltan KoppanyiThe Ohio State University | OSU · Department of Civil, Environmental and Geodetic Engineering
Zoltan Koppanyi
Surveying and GIS Engineer, Computer Science, Civil Engineer
About
51
Publications
17,569
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
244
Citations
Citations since 2017
Introduction
Additional affiliations
January 2016 - December 2016
January 2016 - April 2019
June 2014 - December 2014
Education
February 2012 - December 2015
January 2010 - January 2012
September 2008 - June 2011
Publications
Publications (51)
This chapter focuses on the fundamentals of photogrammetry to derive accurate 3D information based on postprocessing algorithms. It emphasizes important phenomena, such as very precise 3D product characterization, that are either not addressed or coarsely presented in computer vision. Many techniques from computer vision have been used to support d...
![2D positioning performance comparison to SLAM Approach RMSE [cm] max [cm]](publication/343520663/figure/tbl1/AS:922070544297984@1596850157044/2D-positioning-performance-comparison-to-SLAM-Approach-RMSE-cm-max-cm_Q320.jpg)
The increasing demand for reliable indoor navigation systems is leading the research community to investigate various approaches to obtain effective solutions usable with mobile devices. Among the recently proposed strategies, Ultra-Wide Band (UWB) positioning systems are worth to be mentioned because of their good performance in a wide range of op...
Localization in GNSS-denied/challenged indoor/outdoor and transitional environments represents a challenging research problem. As part of the joint IAG/FIG Working Groups 4.1.1 and 5.5 on Multi-sensor Systems, a benchmarking measurement campaign was conducted at The Ohio State University. Initial experiments have demonstrated that Cooperative Local...
The ability to accurately estimate the amount of stockpile material for construction projects can have a substantial impact on project budgets and schedules as well as public safety. Recent proliferation of small Unmanned Aircraft System (sUAS) platforms has made it possible to estimate these stockpiles using inexpensive aerial imagery and photogra...
Cooperative positioning (CP) utilises information sharing among multiple nodes to enable positioning in Global Navigation Satellite System (GNSS)-denied environments. This paper reports the performance of a CP system for pedestrians using Ultra-Wide Band (UWB) technology inGNSS-denied environments. This data set was collected as part of a benchmark...
Indoor mapping has been gaining importance recently. One of the main applications of indoor maps is personal navigation. For this application, the connection to the outdoor map is very important, as users typically enter the building from outside and navigate to their destination inside. Obtaining this connection, however, is challenging, as the ge...
Localization in indoor and obscured GNSS (Global Navigation Satellite Systems) environments remains one of the challenging research problems.Cooperative positioning (CP) or localization (CL) has been demonstrated to be extremely useful for positioning and navigation of mobile platforms within a neighborhood. CP, however, is still based mainly on GN...
In the last decade, we have observed an increasing demand for indoor scene modeling in various applications, such as mobility inside buildings, emergency and rescue operations, and maintenance. Automatically distinguishing between structural elements of buildings, such as walls, ceilings, floors, windows, doors etc., and typical objects in building...
Mobile Laser Scanning (MLS) technology acquires a huge volume of data in a very short time. In many cases, it is reasonable to reduce the size of the dataset with eliminating points in such a way that the datasets, after reduction, meet specific optimization criteria. Various methods exist to decrease the size of point cloud, such as raw data reduc...
The ongoing proliferation of remote sensing technologies in the consumer market has been rapidly reshaping the geospatial data acquisition world, and subsequently, the data processing as well as information dissemination processes. Smartphones have clearly established themselves as the primary crowdsourced data generators recently, and provide an i...
As vehicle technology is moving towards higher autonomy, the demand for highly accurate geospatial data is rapidly increasing, as accurate maps have a huge potential of increasing safety. In particular, high definition 3D maps, including road topography and infrastructure, as well as city models along the transportation corridors represent the nece...
This study addresses the problem of short UWB (ultra‐wide band) outages in a UWB/IMU (inertial measurement unit) integrated navigation system. UWB outages may occur due to non‐line‐of‐sight between the UWB radios. To mitigate the errors during short UWB outages, we consider the special dynamics of the platform by adaptively applying constraints in...
Mobile light detection and ranging (LiDAR) sensors used in car navigation and robotics, such as the Velodyne’s VLP-16 and HDL-32E, allow for sensing the surroundings of the platform with high temporal resolution to detect obstacles, tracking objects and support path planning. This study investigates the feasibility of using LiDAR sensors for tracki...
Ultra-wideband (UWB) radio networks are low-power, simple, and easily deployable local systems that may be used for navigation and positioning purposes. The properties of the UWB signal are attractive because they can go through obstacles, providing potential positioning in environments where other systems are not suitable. As the goal for this stu...
Acquiring geospatial data in GNSS compromised environments remains a problem in mapping and positioning in general. Urban
canyons, heavily vegetated areas, indoor environments represent different levels of GNSS signal availability from weak to no signal
reception. Even outdoors, with multiple GNSS systems, with an ever-increasing number of satellit...
Swarm robotics is an emerging research field due to the large number of applications where this technology can be applied. One possible application in mapping is to discover building interiors to create map and identify dangerous spots inside a building to support first responders or military activities. Finding the optimal strategy for the explora...
This study is the part of our ongoing research to use objects detected on images and object-level representation of the environment for indoor localization. The localization concept consists of three major steps. First (1), the user takes an image inside a building in order to determine its own position. Then, in the second step (2), this image is...
A platform equipped with electromagnetic inference (EMI) sensor allows us to map underground areas and searching for unexploded ordnances (UXO). This mapping requires the precise navigation of the platform. In this paper, we use UWB/IMU integration to determine position and attitude of a UXO platform. UWB outages may often occur due to non-line of...
A novel indoor localization concept is introduced in this study. The navigating user takes an image inside a building to determine its own position. In the first step, this image is passed to a trained R-CNN that recognizes and localizes various types of objects in the image, such as doors, windows, signs, trash bins. Typically, the R-CNN output is...
Steep, and hardly accessible jointed rhyolite tuff cliff faces surround a Castle in NE-Hungary, at village of Sirok. The assessment of cliff stability required the recording of cliff geometry. Traditional surveying was not possible therefore cliff faces were 3D modelled by GNSS supported terrestrial laser scanner and UAV. The onsite engineering geo...
Improving sensor performance, combined with better affordability, provides better object space observability, resulting in new
applications. Remote sensing systems are primarily concerned with acquiring data of the static components of our environment, such
as the topographic surface of the earth, transportation infrastructure, city models, etc. Ob...
Improving sensor performance, combined with better affordability, provides better object space observability, resulting in new applications. Remote sensing systems are primarily concerned with acquiring data of the static components of our environment, such as the topographic surface of the earth, transportation infrastructure, city models, etc. Ob...
In the past, LiDAR technology has been successfully applied to various tracking problems, including pedestrian and vehicle tracking (Shackelton et al., 2010; Gao and Coifman, 2007). Tracking aircraft ground motion on the airfield based on LiDAR point cloud, however, is a new application, as no publication exists in this area. Deriving the driving p...
Analyzing mobility patterns helps to understand travel behavior of travelers, thus the transportation demands. A comprehensive mobility analysis was performed on a huge dataset from Berlin. This dataset contains answers from 41,000 volunteers, who reported their trips with departure and destination information. A modified graph representation is us...
My thesis covers the investigations of three tracking methods. Parameters of the city or highway traffic flow can be estimated by tracking commuting vehicles, however, deriving these parameters requires huge amount of traffic data. In the second chapter of my thesis I introduce the handover-based vehicle tracking in GSM mobile communication network...
This paper presents the usage of Ultra-Wideband (UWB) technology as a standalone and integrated navigation solution in environments where GNSS signal reception is limited or impossible. Every satellite based positioning system needs, among other requirements, an unobstructed line of sight to four or more satellites to operate with reasonable accura...
The precise position and movement of aircrafts on airfields is of the highest safety importance since new large aircrafts, such as Boeing 747 or Airbus A380 may cause dangerous situation like wingtip conflicts, especially on smaller airfields. Therefore, aircraft movement parameters, such as velocity and heading, as well as aircraft location during...
Using LiDAR sensors for tracking and monitoring an operating aircraft is a new application. In this paper, we present data processing methods to estimate the heading of a taxiing aircraft using laser point clouds. During the data acquisition, a Velodyne HDL-32E laser scanner tracked a moving Cessna 172 airplane. The point clouds captured at differe...
Nowadays even more researches are dealing with the quantitative analysis of human dynamics. Part of these investigations uses models to describe general individual human behavior (e.g. task-driven, interest-driven model). In this paper individual models are defined in spatial-context using probabilistic automata. The probabilistic automaton is shor...
Mobile communication systems produce gigabytes of mobility information day-today on country level, which could be exploited in various Intelligent Transportation System (ITS) applications. This paper presents the basic concept for tracking users based on handover (HO) zone detections provided by the telecommunication network. This concept is able t...
This study is the part of our ongoing research on using ultra-wide band (UWB) technology for navigation at the Ohio State
University. Our tests have indicated that the UWB two-way time-of-flight ranges under indoor circumstances follow a Gaussian
mixture distribution that may be caused by the incompleteness of the functional model. In this case, to...
Small-size and low-cost imaging sensors, which are widely used in a multitude of consumer devices, provide medium-quality, typically redundant data that has the potential to be used for mapping and navigation purposes. For example, the Microsoft Kinect™ contains both passive and active imaging sensors, significantly extending the range of possibili...
Digital elevation models (DEM) are baseline geospatial products widely used in mapping and other applications. Generally obtained from airborne sensor data, DEMs can be made available at various spatial resolutions and accuracy levels. As DEM production costs vary significantly depending on the detail level of these two parameters, plans for data a...
This paper investigates the accuracy potential of UWB technology for personal navigation and low-dynamics mobile positioning applications. Lateration method is used for calculating trajectory coordinates from the UWB ranges, outdoor and indoor tests were performed to assess positioning performance. For the outdoor investigation, a rectangular netwo...
The Microsoft Kinect™ sensor has gained popularity in a large number of applications beyond its intended original design of being a 3D human interface device, including indoor mapping and navigation of pushcart and backpack sensor platforms. Indoor mapping and personal navigation systems are generally based on a multisensory integration model, as c...
The penetration of GSM capable devices is very high, especially in Europe. To exploit the potential of turning these mobile devices into dynamic data acquisition nodes that provides valuable data for Intelligent Transportation Systems (ITS), position information is needed. The paper describes the basic operation principles of the GSM system and pro...
The penetration of GSM capable devices is very high, especially in Europe. To exploit the potential of turning these mobile devices into dynamic data acquisition nodes that provides valuable data for Intelligent Transportation Systems (ITS), position information is needed. The paper describes the basic operation principles of the GSM system and pro...
Projects
Projects (3)
Localization based on handover zones in GSM network. Handover events occur during a mobile phone leaves a cells and enter a new one. This geolocations of these events can be measured. In this project, we used this concept to estimate the traffic flow. One of the main advantage that the handover events are stored in the GSM network, and thus, it does not require the cooperation of the mobile user.
Experimental and theoretical studies for using UWB positioning in GNSS-denied enviroment
Using LiDAR sensor to derive motion parameters and trajectories of taxiing and landing aircraft.
