Gate angular sensitivity
Gates can count objects, and filter them based on their type. When we had to cope with chaos on the road in both directions, we added directionality. But sometimes all objects come chaotically from all directions, such as pedestrians. What then?
We now added a new setting for gates, where it is possible to select the angles under which objects must come. If their direction falls outside this angular range, the gate will not register them. With this functionality it is possible to handle yet another level of chaos and uncertainty, should you chance to record such behaviour.
On the left is a mock picture of the concept. Both gates have directionality set. The entry gate (15) has angular sensitivity of 90 degrees and the exit gate (7) has angular sensitivity of 15 degrees. Without directionality, the cones that depict the angle ranges would be on both sides. Note that angle of 90° means a right angle on both left and right: A bi-directional gate with angle of 90° (both default values) in fact accepts 180° on both sides, or 360°, and does not discriminate at all.
Now, DataFromSky Viewer users can measure exact distances between two or more points – even if there’s no road. This function is particularly helpful for a traffic engineer. To start using the new distance measuring tool, right click on any point on the image, and select “add point”. Then define another point on the image in the same way, and you will see the distance between them.
The precision depends on the quality of geo-registration procedure, but it is often better than 40 centimeters. The distances are showed in meters. You can also add multiple points to measure distances between them. If you make a mistake, select the point and move it on the right position.
Vehicle center projection
This is not a feature of Viewer, but yet another good news, so here we go! We silently added this in the last months and forgot to mention it. We now project vehicle definition points onto ground. Typically, they lie in the visual center, but not actual vehicle center. This may not seem like much of a difference, but we missed somewhere between 0.2 to 1 meter that way! More importantly, this error is not homogeneous in any practical way, only for vehicles of the same height at the same place. Given that we meticulously correct for perspective and other factors, losing so much precision was not an option – particularly now that we started systematic work on precision and error quantification and improvement.
Improved load and playback speed
Speed is something that one expects naturally from modern computers and software. This is not always possible with lots of visual data, as in our case, but not always impossible either! Now that we are working on (and with) Viewer in earnest, we focused on speed as well. Believe it or not, but sending numbers to show in the old vehicle list turned out to be a drag. Another thing that ended up significantly faster was drawing all the lines, shapes, notes, boxes and texts on top of the video. Apart from this we changed a lot how the Viewer handles video under the hood.
We are confident that you will like how speedy the Viewer turned out, compared to how it was before!
Apart from the visible things, many bugs were fixed.Read more
In case you are interested in what COWI is up to, check out COWI city creators. It is a blog by COWI departments of Urban and Traffic Planning. The blog is about “urban planning, transport, architecture and much else that goes on in one of Northern Europe’s largest environments for urban development”.
By the way, a recent post links to publication in Danish magazine GeoForum and highlights the way COWI is thinking about drones: Droner monitorerer traffiken (Drones monitor traffic – Google translate).
Another yet more recent post says One of the world’s most advanced traffic analysis tools landed at COWI. That’s us!Read more
RCE Systems and COWI announce a strategic exclusive partnership in the geographic area of Nordic countries – Denmark, Sweden, Norway, Finland and Iceland. The partnership focuses on application of information technologies in transportation, particularly use and further development of DataFromSky.
COWI is a leading consulting group with a 360° approach. The Danish company has a long-proven record of success, serving customers from the Nordic countries and the whole world in the field of civil engineering, including traffic analysis. The partnership enables COWI to provide more accurate and comprehensive traffic information and analysis using DataFromSky. Hence, COWI will help DataFromSky grow professionally and reach more markets.
COWI handles all commercial use of DataFromSky in the Nordic countries, and key personnel can be contacted directly:
- Project Director Rasmus Albrink, email@example.com
- Chief Specialist Jonas Olesen, firstname.lastname@example.org
- Project Manager René Hansen, email@example.com
At Smart Mobility World 2015, our Italian representative, Andrea Marella, was interviewed by IOT Expo. We did not manage to get rights for modification of the video, so we bring it here in the original Italian without subtitles and add an English transcript below. (The auto-transcript and auto-translate feature from Youtube is not really worth trying out in this case).
(ENAC is the Italian Civil Aviation Authority)
|Journalist||Andrea Marella, from DataFromSky. I would like like to better understand in which field do work and who you are.|
|Andrea Marella||Thanks for the question. My job has been dealing with traffic and transport ambit for some years now. I discovered around one and a half year ago this service, that we are currently able to provide to our customers also here in Italy. Practically, we can record aerial videos, using drones or similar technologies, and by means of that we can analyze the video using our processing software. This allows us to extract much more information than we usually have, and not simply the static ones, but also dynamic data. So for example considering a given vehicle that has been recorded in the video, it is possible to tag it and see its movement, as well as know, for each video frame, the speed, acceleration, deceleration, time to enter, time to exit,… All these data are something that we, as traffic engineers, didn’t have until short time ago, but they’re available. Who could be interested in those data? Public administrations, traffic research centers, motorway companies, but also shopping malls. For example, we recently conducted some surveys around the Zara-Expo area in Milan, outside the Expo exhibition, where we had to evaluate and analyze the long-term flows. In conclusion, it allows collection of a large amount of data.|
|Journalist||So what you are talking about is an applicable solution, that has to do with the drone sector, and that could be very useful to compute data analysis. About the application sectors, are they related only to traffic analysis, or may they be different?|
|Andrea Marella||We developed this algorithm that allow to capture the information on a generic moving object. In this case we apply it on vehicles driving along a road, but it could be applied also, for example, to vehicles being parked, knowing the standing time of each vehicle, the enter and exit time, other different important vehicle parameters. As I told before, focusing on shopping centers, we also could estimate the queue, study possible gridlock conditions, the waiting exit time… And last but not least, the road safety, where many applications may use the data that we offer – because what in fact we do is provide information and elaborate them for the customer. This may be, as I said before, public administration, as well as an individual user.|
|Journalist||About the drone sector: It’s a field that is currently fast expanding, but at the same time faces lots of complication to freely grow, because of the problem related to the ENAC regulations, the need for license, authorization, restrictions,… At the moment work is a bit complicated. What do you think about it as an ‘inside worker’?|
|Andrea Marella||Let me start by saying that we actually provide the analysis service, and the survey phase is generally conducted by our partner companies, they have everything needed to legally and safely carry out work. What I can personally say, is that within the last 18 months we had two revisions of the regulations about flying objects; every time that I meet experts or other workers who have something to do with it, we tell each other: ”Next time will be the right one for changes!” I hope in the next time!|
|Journalist||I know. But is there a place in the world where it would be easier to start developing and launching on the market, US for example, thanks to the advantageous circumstances? In other words, is that a problem of rules, or related to how the regulations are applied in a given place?|
|Andrea Marella||I think that the regulation imposed by ENAC, that is one of the first ones adopted in Europe, still have space to correct and improve. Anyway they’re becoming aware of the problem, giving openness. For example the opportunity to fly with UAV less than 300g at 100m height on urban areas is a great possibility. On the other hand, we have UAV producers and workers, who have already invested resources and sums of money, and they’re ready to enter the market. There’s still lack of something due to, well you know in Italy, bureaucracy. For example, the need to send declaration to ENAC, ask authorizations… All these require time, days or months… more likely months! Next January probably a new application on the ENAC website will be born, that will be very helpful to simplify the procedures. I trust in this opportunity!|
|Journalist||From your point of view, what you see in the next two years? Because, as you know, the UAV sector has lots of practical uses… I’d like to know your thoughts – which applications are going to have an immediate development? And what is going to happen within the next two years?|
|Andrea Marella||Generally speaking about drones, I think that monitoring applications related to agriculture will be the biggest, and the first to grow, due to ease of work in open spaces, without constraints, safely. Next, there are research centers dealing with the general environment monitoring; I mean infrastructure monitoring, land monitoring, or related to wind farms, or, as we do, in the field of traffic monitoring.|
|Journalist||So an uncertain future, not well defined…|
|Andrea Marella||No, I wouldn’t say so. We’re optimistic, we don’t want to be negative. We believe that 2016 will be a crucial year for the real growth, and that we are going to see the number of flying drones increasing. Once we are able to fly them easily, we’ll have to decide how to optimize for usefulness: then we will be ready to take advantage of it!|
We worked on another demo video from Brazil, from Certare engenharia e consultoria. They perform a lot of turning movement and origin-destination counting. The camera was placed on a Phantom 3 professional from DJI, which was positioned perfectly over the area. It was one of the numerous junctions in Fortaleza, a junction of two one-way streets.
Traffic flow at the site is 2136 vehicles/hour.