Human actor movement tracking using rgb-camera and Raspberry Pi

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This is the result from a university course named Digital Vision. After watching a tv-show with a lot of participants on a big set, I noticed that the producers used a lot of cameras without anyone operating them, a lot of the cameras only generate a couple of seconds of usable material. This gave me the idea of making a autonomous camera gimbal that aim a camera towards the actors/participants. To do the computing I used a Raspberry Pi 2 and Python. The hardware used is the raspberry camera, two rc-servos, a battery bank, a battery holder and some lasercut MDF-board.

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Winner at Music Tech Fest Scandinavia #MFTScandi

MTF SCANDINAVIA

Music Tech Fest Scandinavia is a 24 hour hackathon where you create music related products or concepts.

Me and my roommate Gudmar Söderin applied and we both got a spot! Eventually we talked to a friend named Teo Juel Eckerström and decided to form a team. Gudmar is studying architecture, Teo is a audio and video artist and he’s studying philosophy. My contribution to the team was programming skills and experience in the FabLab (Lasercuts, 3d-prints etc.). At the event we met up with a guy named Klaus Virtanen. Together we created a music-making-machine where no musical skills are needed.

We named it “Another brick on the wall”. The product is like a Rube Goldberg machine, you place wooden bricks on a whiteboard or your fridge. Then when you drop marbles that triggers midi-signal outputs every time a marble lands on a brick. The midi signal is mapped to any instrument on your computer. Check out the demo at youtube.
Lars Englund and Gudmar Söderin prototyping

The jury of Music Tech Fest liked our product and we won the category Smart homes.

FabLab <3 Data tjej

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DataTjejWorkshop

Together with the association Data Tjej (eng. Computer Girl) I created and led a workshop at Sliperiet in Umeå. Sliperiet is an incubator and work space for the creative industries.

The aim of the workshop was to show the FabLab facilities and to recruit female volunteers. The evening started with a short presentation of Sliperiet and FabLab, then two groups were formed (about 15 participants in each). One group started with an Arduino introduction, and the other got an introduction on the laser cutter. After about 2 hours we had some coffee and then the groups switched stations.

How to control a front loader?

Hot Team

What is a front loader you might ask? A front loader is the liftning arm on farming tractors, you can equip them with different tools such as buckets, forks and lifting equipment.

The company Ålö who produce front loaders contacted our school and asked if we could improve the way users control their front loader. This let to a project in the course Hot team, the aim with the Hot team course is to mix students from different programs and form groups to work with a project. My Hot Team consisted of 5 students from Industrial Design, Linnea SilverGabriel UgglaFanny Eklund, Jonna Mårtensson, Kristian Jonsson and myself.

One of Ålö’s current solution is a tall stick from the floor with limited ways to interact with, front/back and left/right. And another solution is a handheld small thumb-joystick with buttons for all other fingers and a small display. We did an widespread research, tried many different solutions and ultimately decided to go with a quite traditional joystick. My main task in the project was to code and implement a miniature tractor controlled with a joystick, the miniature tractor was used for testing different shapes of the joystick and different positions for the buttons.

To control the tractor I used a Arduino Uno, one big and one small rc-servo, two potentiometers and a button. If you are interested to se the code please send me an email!

Here’s a video of the tractor, sorry for flickering lights and absence of sound.

 

 

He – “He konst. Se konst!” (Translates to “Place art, view art”)

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“He” is the result of a project in the course Prototyping mobile applications. Anna PalmerLisa SundbergVictor Winnhed and myself got the mission to get more people to visit the available art in Umeå. After a couple of brainstorming sessions we came up with “He” (He is a word used in the northern parts of Sweden, it translates to put or place).

The idea is that every month a new theme is presented, and everyone with this application snaps a photo with their interpretation of the theme. All the photos are uploaded to a showroom somewhere in Umeå (like the museum of arts) and is projected on a big screen.

Our goal was to welcome people who never visit art exhibitions by letting them contribute to the exhibition itself.

Topp – a Augmented Reality iOS application

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This i a result of a university course called Design- Build- Test. It started with me and my two classmates Arvid Bräne and Victor Winnhed contacted a company called Nord Interactive. We asked them for ideas to work on during the course, they responded with a need for a Augmented reality application where you simply would get information about a nearby mountain, creek or other outdoor related places. The basic idea being to use the smartphones camera and screen to draw a layer on top of reality by looking through your phone towards the object.

After some evaluating and testing we decided to use three alternative views of the information. First a list-view containing all the points of interest (POI) with the distance and direction to the POI. Second a map-view, a generic map with pins at the location. And finally a augmented reality-view. Every view can also access a detail-view of any chosen POI, containing name, altitude, description and a picture (if available).

All the POI’s are sorted by different categories .e.g. Mountain, Bike trail, fishing, Waterfall etc. The iPhone application fetches the information from a database. To maintain and fill the database we built a webpage where admins can add and edit POI’s

Skärmavbild 2014-06-03 kl. 20.29.49Here are print-screens showing the three main views.

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And the detail-view and filter-menu.

 

Quadrocopter build

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IMG_0960Me and two friends designed and built a multirotor. We started from scratch and searched the web for all the facts needed, then followed a large order  containing everything from motors, propellers, electronics and carbon fibre bars and plates.

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This picture is showing the first draft made out of cardboard.IMG_20130606_203532The design allowed the arms to fold in, making the quadrocopter easier to transport between places.

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After flying, crashing and rebuilding our own design a couple of times, we ordered a new pre-built frame and moved over all the electronics and other hardware.