Proof of Concept with Augmented Reality

 

The potential of the proDataMarket platform is huge, and by letting third party actors use and contribute to the “big data” platform, the potential could be even greater. To show how proDataMarket can be utilized, EVRY is developing two mobile applications that rely on proDataMarket service. The applications combine data from proDataMarket along with “augmented reality technology” to give the user a visual representation of the data. By doing this, EVRY will help contractors, construction or municipalities visualize future building projects. This is done with two iPad applications. The first application show underground infrastructure such as pipes and cables. The other application augments a 3D model in a real world scene.

Augmented reality (AR) is a live direct or indirect view of a physical, real-world environment whose elements are augmented (or supplemented) by computer-generated sensory input such as sound, video, graphics or GPS data [1]. The applications EVRY develops uses augmented reality technology to present cadastral data, distributed by proDataMarket. By doing this the applications can show underground structure on the screen (through the device camera), as well as 3D models of future building projects in a “real world scene” with information about the surroundings. This is done by having a 3D-model with correct measurement data (relative to its real world size), and by knowing the distance between a desired location and the user, the model can be scaled to the correct size according to the distance. Of course, if the user decides to manipulate the model (i.e. scaling it up), the size/distance relationship will be invalid. The 3D model augmentation can ease both private and commercial building projects by giving a visual presentation of how a building may look in a landscape.

The development process has been a process of trail and error and different augmented reality SDK have been examined. In the end the development team chose “Wikitude SDK [2]” to handle the augmentation processing. The task of augmenting a custom 3D model at a desired location is a suitable task for Wikitude SDK. By setting the model as a “Point of Interest” (POI) and using “GeoLocation”, the user can set the model at a desired location in a 2D map (Google map).

1

The model will be scaled to the correct size relative to the distance from the user. When a model is placed, Wikitude will augment the model and the user can see and manipulate with onscreen controls.

2

The manipulation controls are necessary because the iPad compass and location service are not accurate enough to get a satisfying result. If a user needs to place a model at a very exact location, there must be some way to tweak and calibrate the model. All in all, there are still some bugs left to fix in the applications, but the main functionality is in place and we are looking forward to show demos of what we have made.

[1] https://en.wikipedia.org/wiki/Augmented_reality

[2] http://www.wikitude.com/

Cerved and SpazioDati at Data Driven Innovation 2016

Cerved and SpazioDati participated in the first edition of Data Driven Innovation 2016 with a presentation and a stand about preliminary results of their collaborative work in the ProDataMarket project.

Cerved & SpazioDati present the first prototype for proDataMarket @DataDrivenInnovation 2016
Cerved & SpazioDati present the first prototype for proDataMarket @DataDrivenInnovation 2016

 

Data Driven Innovation is an open summit about big data hosted by Roma Tre university and organized by Codemotion. During two days of the summit many people have had the possibility to see the first results of Cerved & SpazioDati proDataMarket project: the Cerved Scouting Terrain Service (CST), an interactive map showing Bologna territory scores and social demographic scores, as the social disease index, the economic disease index, the socio-demographic score and much more territory scores.

CST, 2d business case of Cerved: Employees of the working population in Bologna
CST, 2d business case of Cerved: Employees of the working population in Bologna

 

CST is the second business case Cerved is being developed within the proDataMarket project: the goal of this service is to provide target users with a tool to search and see property and territory information on a map. In order to achieve this, Cerved is developing value-added geo-marketing indicators, analyses and visualisations.

Authors: Claudio Castelli & Diego Sanvito

ProDataMarket place as a toll for connecting real-estate data publishers and prospect data consumers

The main objective of the ProDataMarket project is to create a data marketplace for open and proprietary real-estate and related contextual data.

Marketplace is a place where data producers meet prospect data consumers. In addition to basic features for making data accessible and discoverable, marketplace can provide more tools to help data producers “advertise” their data and better engage with potential data consumers. Among such tools are those that help data producers explain the type of their data, its attributes and demonstrate its value. In this post we discuss how these tools are being realised in the ProDataMarket place.

Driving example

Let’s consider a national statistical office, for example, the Italian National Institute of Statistics (ISTAT). ISTAT wants to disseminate one of its datasets, a dataset with census cells that cover the Italian region of Piemonte. This dataset subdivides the region of Piemonte in census sections according to ISTAT’s 2011 National Census. A census section is the smallest geographic unit for which the statistical variables of a population census are taken.

ISTAT is interested in explaining to the prospect data consumers that the data can be useful when it is needed to:

  • determine inter-municipal boundaries
  • describe different areas of a city in terms of some geographically-bound characteristics

Marketplace: initial steps

Figure 1 illustrates initial steps that ISTAT performs at the marketplace to present her data.

Figure 1: The data producer prepares, describes and publishes her data at the marketplace, to make accessible and discoverable.

 

ISTAT prepares its data for publication, describes and catalogues it. Now, a prospect data consumer can discover and explore the dataset of census cells of the Piemonte region. While ISTAT made the data accessible and discoverable, data consumers still have to figure our themselves what type of data it is, what is inside and what is it useful for.

Marketplace: explaining the data types

To explain the type of the data, ISTAT creates and attaches visualisations to its data, as shown in Fig. 2.

Figure 2: The data producer creates visualisations, to explain the type of the data

 

In addition to preparing, describing and publishing Piemonte census sections dataset, ISTAT can create a map of all the census cells of the Piemonte region. This gives an illustrative example of the data to the prospect data consumers: when exploring the dataset, the data consumer can immediately see that the data contains polygons, each of which represents a geographic area of a census section.

Now that the type of the data is clearer, ISTAT can go further and explain various attributes of the data.

Marketplace: explaining attributes of the data 

Figure 3 illustrates steps that ISTAT performs at the marketplace, to give the data consumers a glimpse of the data attributes.

Figure 3: The data producer queries the data, to explain data attributes.

 

As mentioned above, the dataset of the driving example contains census cells’ geometries. Every cell is attach to a certain municipality. This information becomes useful if one wants to represent single municipalities on a map. For example, to represent the city of Turin, ISTAT can prepare a subset of the census cells by filtering on the municipality attribute of each cell. Similarly, other attributes of the data can be highlighted.

Marketplace: putting data into context to explain its value

With the help of the marketplace, ISTAT can prepare, describe and visualise as many subsets of the data, as she wants to. Finally, to showcase the value of the data and explain to the data consumer its value, ISTAT can put census cells into context, as illustrated in Fig. 4.

Figure 4: The data producer augments its data from other data sources, to show the “value in context”.

 

This last approach is realised through the Augmentation Service that supports querying a co-located data source using several functions to produce a new dataset. Currently, the Augmentation Service uses data from OpenStreetMap, to provide context. For example, ISTAT can use the service to extract the number of bus stops found nearby each census cell, or the distance to the closest train station, or the length of pedestrian paths in each census cell. Once the new augmented dataset is prepared, ISTAT can proceed with visualisations. For example, she can create a coloured map to show density of nearby bus stops in Turin.