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Interpretation of Geometric Shapes Miquel Prats Steve Garner The Design Group The Open University UK ETRA – Eye Tracking Research & Applications 22-24.

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Presentation on theme: "Interpretation of Geometric Shapes Miquel Prats Steve Garner The Design Group The Open University UK ETRA – Eye Tracking Research & Applications 22-24."— Presentation transcript:

1 Interpretation of Geometric Shapes Miquel Prats Steve Garner The Design Group The Open University UK ETRA – Eye Tracking Research & Applications March 2010 Austin, Texas Project funded by: Project partners: Iestyn Jowers Alison McKay School of Mechanical Engineering University of Leeds UK Nieves Pedreira Information and Communications Technologies University of A Coruña Spain

2 The Designing with Vision project investigates the possibility of using eye- tracking technology as an interface for systems intended to support the creation, exploration, and development of shape alternatives in conceptual design. Project funded by: Project partners: Interpretation of Geometric Shapes

3 The Designing with Vision project is interested in exploring the possibilities of using eye-tracking technology as an interface for systems intended to support the creation, exploration, and development of design shape alternatives in conceptual design. Project funded by: Project partners: Interpretation of Geometric Shapes

4 Project funded by: Project partners: Interpretation of Geometric Shapes

5 Project funded by: Project partners: Interpretation of Geometric Shapes

6 The Designing with Vision project seeks to: – Understand how eye-tracking technology can be used to recognise different interpretations of shapes. – Build a computational design system that supports fluid design reinterpretation and exploration. Project funded by: Project partners: Interpretation of Geometric Shapes

7 Project funded by: Project partners: Interpretation of Geometric Shapes Computational shape interpretation The Designing with Vision project seeks to: – Understand how eye-tracking technology can be used to recognise different interpretations of shapes. – Build a computational design system that supports fluid design reinterpretation and exploration.

8 Interpretation of Geometric Shapes Computational shape interpretation: recognition Gross (2001) Back of an Envelope The program has been trained to recognise ‘interesting’ shapes The program has not been trained to recognise these shapes

9 Saund and Moran (1994) What You Perceive Is What You Get Interpretation of Geometric Shapes Computational shape interpretation: selection Gesture-based shape selection

10 Interpretation of Geometric Shapes Computational shape interpretation: generation Jowers et al. (2008) Design Synthesis and Shape Generation Based on the shape grammar formalism (Stiny and Gips 1972)

11 Interpretation of Geometric Shapes Eye tracking and shape perception Yarbus (1967) Eye movements and fixations are influenced by the viewer’s intent

12 Interpretation of Geometric Shapes Our study – Analyse eye movement data with the objective to determine when a shape is recognised. – Analyse eye movement data with the objective to determine which shape is selected. Main Goals

13 Interpretation of Geometric Shapes Our study z – Analyse eye movement data with the obj the moment when a shape is recognised.. Main Goals We call it ‘Now moment’

14 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1 Find the squareFind the arrow

15 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1 Find the squareFind the arrow

16 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1

17 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 2 Say which shapes each image is composed of

18 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 2 Extract of participants’ transcript

19 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 3 Find this shape in the following figures

20 Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 3

21 Interpretation of Geometric Shapes Main conclusions Our results… … support previous findings that indicate the relationship between saccade amplitude and fixation duration in visual fixations (Unema et al. 2005, Velichkovsky et al. 2005). … show that fixation duration and saccade amplitude can be used as indicators of shape interpretation. … support the hypothesis that eye movements could be used to select shapes in a natural and non intrusive way.

22 Interpretation of Geometric Shapes Future work – Evaluate the data by means of statistical analysis. – Examine whether fixation duration and saccade amplitude are also indicators of shape recognition in ‘designerly’ tasks. – Explore ways to determine which shapes are selected. – Build a computational drawing system that uses eye movement data to recognise any shape interpreted in a design.

23 Interpretation of Geometric Shapes Future work Experiments to determine which shape is interpreted Development of Designing with Vision software

24 Project funded by: Project partners: Interpretation of Geometric Shapes

25 Project funded by: Project partners: Interpretation of Geometric Shapes

26 Project funded by: Project partners: Interpretation of Geometric Shapes

27 Project funded by: Project partners: Interpretation of Geometric Shapes

28 Project funded by: Project partners: Interpretation of Geometric Shapes


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