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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 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
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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
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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
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Project funded by: Project partners: Interpretation of Geometric Shapes
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Project funded by: Project partners: Interpretation of Geometric Shapes
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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
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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.
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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
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Saund and Moran (1994) What You Perceive Is What You Get Interpretation of Geometric Shapes Computational shape interpretation: selection Gesture-based shape selection
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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)
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Interpretation of Geometric Shapes Eye tracking and shape perception Yarbus (1967) Eye movements and fixations are influenced by the viewer’s intent
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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
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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’
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1 Find the squareFind the arrow
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1 Find the squareFind the arrow
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 1
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 2 Say which shapes each image is composed of
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 2 Extract of participants’ transcript
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 3 Find this shape in the following figures
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Interpretation of Geometric Shapes Our study The experiment 7 participants 3 tasks Task 3
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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.
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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.
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Interpretation of Geometric Shapes Future work Experiments to determine which shape is interpreted Development of Designing with Vision software
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Project funded by: Project partners: Interpretation of Geometric Shapes
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Project funded by: Project partners: Interpretation of Geometric Shapes
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Project funded by: Project partners: Interpretation of Geometric Shapes
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Project funded by: Project partners: Interpretation of Geometric Shapes
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Project funded by: Project partners: Interpretation of Geometric Shapes http://design.open.ac.uk/DV/
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