Right Angle 2.0

There is a new version of Right Angle App: Right Angle 2.0

This new version adds a help screen and gives you the choice for the orientation of the mark.

Take a look in the following pictures.

The options are available in the menu.

Paper about mobile interaction through camera

I found a very interesting paper titled

Camera-Based Motion Recognition for Mobile Interaction

Click here to access the paper on-line.

The cited work presents the state of art about computer vision based apps for mobile devices, some features that can be used for developing new apps and suggestions about resources that be added to the app, like GPS, RFID, accelerometer, etc.

In fact, computer vision based apps for mobile devices is a great field to research and develop interesting and useful solutions.

Right Angle

Transform your mobile device in a set-square with Right Angle app.

Through your camera, this app identifies a 90° angle between any two lines, creates a target and holds your screen.

All you need is position the mark over the object you want to identify the 90° angle.

There are some samples from this amazing app.

This app is available in Google Play here: https://play.google.com/store/apps/details?id=com.engcross.rightangle

4 Views

4 Views gives you 4 ways to see the image from your camera.
Choose what you want just touching the screen and take your pictures touching the botton.

4 Views is OpenCV based, it's an Intel Library for image processing and fully safe for you.

There are some samples of this cool app.

This app is available in Google Play here: https://play.google.com/store/apps/details?id=org.opencv.engcross.views