Posts Tagged: DataFromSky

Home » DataFromSky

Connect with us! DataFromSky starts with WEBINARS

Our team of DataFromSky comes up with lots of news, opening online webinars for our customers, potential clients and partners is one of it! We would like to get more in touch with You; therefore, we decided to start sharing our knowledge through a creative way via online web seminars, where everyone can contribute to the debate.

Agenda of DFS WEBINARS:
– Introduction of the project
– DataFromSky Viewer – software tool for advanced interpretation of traffic data
– DataFromSky Traffic drone & Traffic Balloon – special hardware for precise data collecting
– Practical demonstrations of application of DataFromSky in traffic analysis
– Research & Development – detection of near accidents, real-time traffic data
– Discussion

The webinar is opened and higly recommended for everyone, who is interested in learning more about DataFromSky! The only thing you have to do to join the online seminar, is to send your registration via email to the following email address: webinar@datafromsky.com

Please, mention the days, that would be suitable for You. The confirmation with the specification of the date and time block of the webinar will be sent back to your email afterwards.

One online webinar would take around half an hour and one time block is limited for maximum of 7 participants.
First webinars will start from 1. 3. 2017!

Do not hesitate and join our online web seminar to find out more interesting characteristics about DataFromSky.

We are looking forward to connecting on DFS WEBINAR!

Read more

Camera on a balloon for studying traffic in the city of Alba

Flow analysis, speed and critical points in the city of Alba
“DataFromSky”, in other words, data that arrives from the sky through the shootings of a camera placed on a balloon. It was not so difficult to see one of these during these days in the industrial area located in Corso Asti, where the local study “TrafficLab” is going to analyze the traffic from the sky. “This is an analysis that we need for planning the new commerce building placed in this area” says the municipal officer. The results are still processing. Andrea Marella, engineer at TrafficLab, says: “We realized some aerial video at a height about 50/60 meters. The results are really interesting, because it is possible to see the traffic from a different perspective.” And explains: “This is a new methodology developed about three years ago that allows to analyze the vehicle movements from the sky. This service doesn’t interference with the sensitive data, and helps to get information automatically with our software. This can give us the number of the vehicles on the road, the traffic flow, the directions, the speeds and the conflict points.”

Looking for solutions
The camera is attached to a balloon inflated with helium. Marella adds: “We cannot use drones, because it is too difficult to have authorizations. We work in this way from a long time, with motorway companies, shopping centers and traffic local authorities and the results are very satisfactory. In this way we can have a wider vision that allows to report potentially critical situations and to find out how to solve them.”


Read more

DataFromSky & COWI – traffic analysis in Copenhagen

DataFromSky in cooperation with COWI is coming with a new traffic analysis from Denmark! As in all other major cities, massive amounts of traffic goes in and out of Copenhagen every day. This leads to congestion and the everlasting discussion on how to effectively move as many people as possible. In Copenhagen, almost 50 percent of all commuting trips are made using bicycles. This results in numerous potential conflicts between bicycles and cars, and the battle for allocating and distributing sheer road surface space between the transport modes is continually on – especially at certain locations, where available space is scarce. One such place is “Christmas Moellers Plads”, an intersection complex connecting inner Copenhagen to the island Amager. Through the use of a specialized UAV and Data From Sky, COWI has obtained a complete 4-hour overview of traffic passing through this complex for both cyclists and motorists – and the interaction between the two. The data extracted now forms the basis for looking into new and better solutions that will keep this people mover perform at its best.

Read more

Multilevel intersection – no problem for DataFromSky

We never rested on our laurels! Our tool for trajectory interpretation DataFromSky Viewer is being constantly evolved and now comes with few new functionalities!

Multilevel intersection detection
DataFromSky can track vehicles in multilevel roads! As the video shows, we can track all the vehicles even when the visual occlusion appears. DataFromSky can follow the whole trajectory of the car for the tracked time and collect reliable data – average speed, acceleration, gap-time, time to follow, heatmaps or dimensions of vehicles.

Stationary time
Since now, we are able to count the time, for which is the vehicle in a stationary position, in other words, how long the vehicle has to wait until it passes some obstacle (intersection, traffic lights, traffic jam etc.). This figure may help to determine the utilization and load of a traffic junction.

Video parameters:
Hight: 81 m, top-down view
Tool: drone
Place: multilevel intersection, Kato Varibobi – Greece

Take a look at the video below, demonstrating new useful functionalities of DataFromSky!

Read more

Transforming aerial video data into knowledge

DataFromSky is a unique solution for motion analysis of aerial video data. The ability to detect, track and classify moving objects from aerial videos provided by drones, fixed cameras or other video sources opens new possibilities in the field of traffic monitoring. The technology behind is under intensive development and grows more efficient every day through the embedded capability of learning from its mistakes. We are happy to announce that we have made a significant step towards enhanced accuracy thanks to the complex integration of deep neural networks into DataFromSky framework. Our deep neural networks are being trained on millions of samples 24 hours a day. The quality is quite impressive right now!

Our tool for trajectory interpretation DataFromSky Viewer also comes with a new functionality. The new version extracts parameters which are sometimes difficult to obtain, such as gap-time, time to follow, heatmaps, and dimensions of vehicles. We recognize the potential of the data we are able to obtain, and, therefore, co-work on our tools with traffic researchers and traffic engineers worldwide. The video below demonstrates the new functionality of DataFromSky Viewer. Take a look!

Read more

Partnership with Elistair – tethered solution for UAVs

We are proud to announce our partnership with Elistair, from France, which has developed tethered solution for UAVs. Through this partnership, we can deliver a UAV solution for monitoring and analyzing of moving objects from bird’s-eye perspective. We are creating an unique access to unlimited aerial monitoring capabilities, for both public and private entities (traffic monitoring, perimeter security, etc.).

We teach drones to see, to understand image data!

Read more

DataFromSky at Seminar in Liberec – Deep Neural Networks

A Workshop titled Modern methods of image recognition and processing methods was organized recently by Technical University in Liberec. The aim of the workshop was to offer insight into image processing applications from the industry, as opposed to research setting.

Adam Babinec presenting DataFromSky at seminar in Liberec

We presented principles of detection and classification of vehicles from aerial video data using Deep Neural Networks. As you can imagine, Deep Neural Networks are integral part of DataFromSky platform and are used in many subtasks of DataFromSky solution. If you want to know more about the magic behind, you can download the presentation (PDF, 2 MB) and/or contact us.

Read more

Accuracy and error – model and measurements

If you follow our work for a longer time, you have probably noticed that so far we did not provide any exact numbers on accuracy and errors of the measurements. However, a method providing quantitative data without any quantification of its precision is somewhat dubious. Thus it should come as no surprise that we were working on these matters zealously behind the scene.

So, what do we have now? We have created a model of the whole process which generates our data, and we are currently working on a set of measurements to validate it.

Model

We have created a mathematical model of the whole process which generates our data. This includes the physical reality at target, complete optical system, and digital processing. The following error sources were considered:

  • landmark location errors (in meters)
  • landmark pixel uncertainty (in pixels)
  • camera intrinsic parameters (in pixels)
  • target pixel uncertainty (in pixels)
  • air turbulence (in pixels – included in target/landmark pixel uncertainty)

Using this model, we were able to relate together many variables of the setup – achieved accuracy, distance, covered area, incidence angle, slant range… The results were encouraging. The following picture shows area covered when using a 4k camera, depending on incidence angle and slant range, assuming maximal error of 0.5 meters:

Accuracy for a 4k camera, depending on incidence angle and slant range

What can one read from the chart? As you can see, the incidence angle of about 40° is a reasonable cutoff value. Slant range of 140 meters at 0° (i.e.: directly overhead) gives the best value. For a HD camera, the area covered is a quarter of that for 4k, and optimal altitude in zenith is halved – 70 meters.

We can also overlay the model’s predicted accuracy onto real pictures – that is, display achieved accuracy along with the footage. We hope to eventually incorporate that functionality into DataFromSky Viewer, so that you could check yourself. For now, we have this picture from the Randers video (in HD). Numbers are error in meters, with respective isolines displayed. A 4k video would yield half the error.

Achieved accuracy example in a real scene

Validation measurements

In order to validate the model, we made a set of measurements at a suitable place near Popice, a small Southern Moravian village known by the vineyards in the area.

Popice area used for measurements

We placed a regular grid of 64 landmarks in an 8×8 square pattern, so that a side of the square was exactly 100 meters. The landmarks were positioned using a professional GPS in differential mode, achieving placement accuracy of about 5cm.

Split picture: Calibration landmark, Jiří Apeltauer holding the gps receiver

Then, we set up an UAV to fly around and take a video, in 4k of course. Here is the trajectory projected onto ground, looking at the area from the west.

UAV trajectory projected onto ground

We simply imported the recorded video into DataFromSky and added the landmarks as tracked objects. You can’t see them in the picture because the red ID label “pin heads” are larger than an A4 at that resolution, but they are there.

UAV trajectory projected onto ground

Results

We are still working on processing the results. So far, the agreement between model and measurements is very good, and the model output suggests accuracy greater than we hoped for!

We will publish the results in an academic journal paper. Hopefully, the paper will be finished in a few days and we will be able to share more!

Since this text is about accuracy, we can hint that there is more to come: We measured the vehicle position using a vehicle-mounted dGPS as well, so there is be another set of data to work on.

Read more

Brochure available online

A few days ago we mentioned the boxed version of our software. Design of its envelope is based on our print brochure, which we will give away at events, conferences, fairs, and whenever the opportunity arises. And you can now browse this brochure online to take a look!

It might be better to mention that the brochure is not exactly small, so it might take a while to load after you enter.

Brochure first page preview

If you are a partner, feel free to grab a print-quality PDF version from the partner download zone.

Read more

Human convoy simulation tracked with DataFromSky

Researchers from Technical University of Brno recently had an interesting idea: Use a number of students to simulate a convoy with human drivers and measure the dynamics of that situation. To do so, they turned to DataFromSky, their trusted research partner.

It is no coincidence that DFS turned out to be a great tool for such situation – our long-term vision is to be the tool for spatial movement analysis. The students’ positions were marked manually; the rest of needed processing was already part of our software.

Enough rambling, take a look!

Read more
Page 2 of 41234