Camassia offers visually impaired users an assistance to find the free path in front to them. In order to achieve this Camassia generates an acoustic representation of the path by analyzing the camera image and informs you continuously where it assumes free space.
To detect the path the camera needs to see the surrounding area in front of you. Hold the smartphone straight in front of you, at best tilt it forward slightly. The field of view increases when holding the smartphone in landscape orientation. You can also increase the field-of-view of your camera by using an optional wide-angle lens.