Leaning based regional magnification of digital displays Sohair - - PowerPoint PPT Presentation

Leaning based regional magnification

• f digital displays

Sohair Altwal , Remon Vogel Interaction Engineering - WS 19/20 Augsburg University of Applied Sciences

• Prof. Dr. Michael Kipp

• 1. Motivation
• Zooming with mouse a habit, but

maybe not intuitive

• Especially elder people could

struggle

• Is there an alternative/ naturally

inspired way?

• 2. Related work

Investigating Gaze-supported Multimodal Pan and Zoom

by S. Stellmach and R. Dachselt

• Pan and Zoom Alternatives:

Scroll Wheel Zooming + Mouse Panning (Sc+M). Scroll Wheel Zooming + Gaze-directed Panning (Sc+G). Touch-based Zooming + Gaze-directed Panning (T

• +G).

Tilt-based Zooming + Gaze-directed Panning (Ti+G).

„Squint to Zoom: Augmenting our Sense of Vision with Zoom Caps“

by G. Chernyshov, Y .S. Pai, B. Tag, M. Isogai, D. Ochi and K. Kunze.

• Choose squinting as an

interaction method.

• 2. Related work

• 3. Concept
• Create alternative, intuitive zooming option
• Leaning for zooming → natural movement
• Zoom into specific part of the screen
• Easily accessible/usable → only webcam as input

1. No interaction 2. Lean forward for zooming in 3. Clutch : raising eyebrows

Backwards for zooming out again.

• 4. Implementation
• Using Python and OpenCV
• Webcam as main input
• OpenCV to get points on

eyebrows and eyes

• Calculate distance to screen

and relative position of eyebrows

• 5. T

esting

6 test persons

Mouse + Alt button Leaning forward/backward + Raising eyebrows 1 task for each scenario = 2 tasks

• 5. T

esting

Observations:

• Very difgerent

approaches

• Mouse a lot faster

, leaning very mixed

• 4 persons preferred

leaning, 1 person preferred mouse

Feedback:

• Increase sensitivity

7 . Live demonstration

Thank you for your attention