New research paper called “How accurate are small drones for measuring microscopic traffic parameters?” published in Transportation Letters Journal can provide an answer. Adam Babinec, one of the main IT developers standing behind DataFromSky solution, co-author of the article conducted by University of Athens and Brno University of Technology, says:
„With this paper, we wanted to examine the potential of using sUAV as part of the ITS infrastructure as a way of extracting naturalistic trajectory data from aerial video footage from a low volume intersection and a pedestrian passage. Moreover, we have examined the accuracy of speed data collected from a drone compared to data collected from an On-Board Diagnostics II (OBD-II) device.”
The results show, that the distortion correction and calibration phase of the video are of crucial importance for high level of accuracy, in terms of stabilizing and geo-referencing the video. In order to extract accurate data from drone video footage, each aerial video must be stabilized to compensate for camera movement, since sudden vibrations or small wind gusts can lead to large errors on the ground.
Picture: a lightweight hexacopter (left), study area – low volume intersection in University of Athens campus (right)
The research paper is accessible on this page.
The accuracy of DataFromSky system itself was examined in another research paper, created in collaboration with Faculty of Information Technology and Faculty of Civil Engineering at Brno University of Technology and posted in International Journal of Transportation Science and Technology, for more information click here.
Our new scientific article answers… Since the inception of DataFromSky we were actively collaborating with academics to analyse traffic and design safer transportations systems for a better future. Beside the development of the processes to extract and analyse trajectories of the vehicles from aerial videos, we also aimed to analyse the accuracy of our approach itself.
In collaboration with Faculty of Information Technology and Faculty of Civil Engineering at Brno University of Technology, we are working to analyse the accuracy of object position estimation and accuracy of extracted trajectories and their properties when estimated by a low flying UAVs. (see our news from a year ago).
In the previous year, we have developed a tool to assess the accuracy of object position estimation algorithm similar to the one used in DataFromSky. We used this tool to estimate the accuracy of object position estimation from aerial imagery captured by a general-purpose drone in various scenes and compared the results with spatial data collected with an industrial grade GPS sensor. A part of this research and its results have been recently published in special issue on Unmanned Aerial Vehicles in peer-reviewed scientific journal International Journal of Transportation Science and Technology and is already available for pre-press preview at the following link: http://dx.doi.org/10.1016/j.ijtst.2017.02.002
The article provides an insight into the nature of the accuracy of position estimation and properties of uncertainty propagation through the algorithm with respect to various aspects of the camera, scene and its setup. The additional contribution of article is to provide a guiding tool to properly choose and set the drone pose and camera to achieve the desired accuracy of the position estimation of objects in the traffic scene prior the capture of the scene itself.
Picture: “Spatial visualisation of the resulting position estimation error in metres caused by non-linear deformation, across the camera field of view. The 4 red crosses represent the images of the landmarks. The camera is situated at position (0,0,100)[m] looking directly down.”
DroneBlog covered us a few days ago in a post called DataFromSky offers traffic analysis of aerial video data. Given that the blog is mostly for the drone sector, there is a lot of text dealing with traffic data collection basics and particulars. There is a bit of history behind DataFromSky as well – how a group of computer vision specialists got into traffic analysis.
In other news, we are at Intertraffic in Amsterdam and the concentration of minds and companies is spectacular. We hope to get some newsworthy partnerships and arrangements!
DronEzine, an Italian electronic drone magazine, published an article dedicated to Smart Mobility World 2015. This year, a section will be dedicated to drone use in the field of traffic, intelligent transport systems and mobility. The article mentioned DataFromSky: “All over the world, the businesses that use UAV for this kind of mission have proliferated, such as DataFromSky, to mention just one name“.
We are happy to be mentioned, since we are planning to participate again this year, after our participation last year in Turin. The 2015 edition will start on 28th October at the Italian F1 circuit in Monza, conveniently located in time and space near the end of Expo 2015. Don’t hesitate and come!
Read the whole article in Italian (or the vaguely useful Google translation).
Alan Sackrin, Florida based Civil Trial Lawyer, published an article about the importance of road design and its influence on road crash statistics.
Current conditions of roadways and their design – these two factors play a major role in number of car accidents.
There are times when people are seriously injured or even killed in auto accidents on a traffic path where the design itself causes danger mentions Alan Sackrin.
Read the whole article at South Florida Injury Accident Blog.
Transportation is one of global issues and the road traffic accidents death rate is annually increasing. DataFromSky wants to fight against this problem by providing advanced safety analysis. Join us to keep our roads well-designed and safe!
Mike On Traffic is a blog about “the Less Boring Side of Traffic Engineering“. DataFromSky was recently mentioned in a post called Counting Cars from the Sky: The Future of Traffic Monitoring.
At the beginning of July, sUAS news reported about drone traffic monitoring demonstration in Netherlands.
Traffic technology International, an international web-and-print magazine, published in their June/July 2015 issue an article about UAV-based road traffic monitoring based on the Netherlands event under the title Farewell to fixed cameras?.
While the one-off demonstration showcased real-time monitoring, not analysis, it is an application of UAVs in traffic nevertheless. The article title is especially poignant for us, since drones can replace fixed cameras for both monitoring and analysis.
Meanwhile, another monitoring application is on the horizon: “The Jakarta City police to use drones to monitor traffic”. Doubtless, many more are to come…
Dear visitors, thank you for visiting us at PIA 15 in Munich. We presented our system for traffic analysis from aerial video with extraordinary success. And If you didn’t come, never mind! Here are a few photos, the poster and other files of interest.
See also our previous posts about PIA15.
leStrade is a prestigious Italian transport-oriented magazine. Our partner website TrafficLab.eu just announced that a six-page article about DataFromSky has been published in the December issue, which is available online on Issuu. Find us on pages 88-93!
The article opens with a flattering but accurate description of DataFromSky: A technique that crossed the boundary from sci-fi to reality. The bulk of the article describes the possibilities DataFromSky software opens in conjunction with drones/UAVs in the field of aerial monitoring and analysis of traffic. The article does not deal with the inner workings and technologies involved, and is suitable for general audience.
If you don’t wish to browse the whole magazine, the article (in Italian) is attached as a PDF (2.8 MB).