Change Detection in 3D Parametric Systems:

Human-Centered Interfaces for Change Visualization

Diliara NasirovaHalil Erhan

Andy Huang

SIAT / SFU – 5 Minutes Madness – April, 2010

What?

• examine the influence of change blindness in change detection while working with 3D parametric design models

Detecting Change Visualizations in 3d Parametric Systems

Why?• Computational-technology over the human• Challenges to detect changes– Complex Models– Change Blindness

• A blink• Eye saccade• Shift• Occlusion…

Detecting Change Visualizations in 3d Parametric Systems

So what?• Improve change visualization features• Improve HCI design• Prevent poor design outcomes

Detecting Change Visualizations in 3d Parametric Systems

http://i229.photobucket.com/albums/ee174/ASP1001/river_tharwa_bridge2.jpg

Experiment Design

• study comparing three interfaces: – on model visualization, – on periphery visualization– combined views.

Detecting Change Visualizations in 3d Parametric Systems

Experiment Design

Detecting Change Visualizations in 3d Parametric Systems

Experiment Design

Detecting Change Visualizations in 3d Parametric Systems

Results

• no significant difference between visualizations located on model and on periphery.

• combined visualization makes it significantly easier and faster for detecting changes.

• change blindness makes change detection highly challenging, slow and confusing.

Detecting Change Visualizations in 3d Parametric Systems