stanford hci group

April 21, 2023

CINCH

David David AkersAkers

a cooperatively designed marking interface for 3D pathway selection

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The Human Brain

white matter

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Estimated Pathways

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Pathway Selection

DTI-Query [Akers et al. 2004, Sherbondy, et al. 2005]

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Backgroundbrain imaging and pathway selection

Design ProcessWizard of Oz prototype

The CINCH Systemdemonstration and implementation details

Design Implicationsreflections on design process

Outline

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Touch

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Shape Match

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An Interface Design Quandary

How to develop a marking language that is both:

Useful to scientists (solves their selection problems)

Intuitive to scientists (matches their mental model)

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Whiteboard ExplorationsWhiteboard Explorations

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Wizard of Oz Prototype

Scientists invent their own marking operations

Wizard modeUser mode

Designer simulates the effects, using a crude but functional interface

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Wizard of Oz Prototype

[ Live Demo ]

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Marking Operations Invented

shape matching touch surface intersection

Selection modes: Add, Remove, Intersect

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Design Principles

Minimality Remove unnecessary parameters whenever possible.

Visibility Marks should only affect pathways on the visible

side of each cutting plane.

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The CINCH Interface

[ Demo Video ]

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The CINCH Interface

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Details: Shape Match

3D pathway (projected)

Gestural mark

Distance metric: Mean closest points

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Details: Grow/Shrink

Distance to selection

5.87

7.89

10.23

15.58

16.8

17.5

18.5Distance matrix

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Related Work3D modeling interfaces

Sketch [Zeleznik et al. 1996]

Teddy [Igarashi et al. 1999]

3D selection interfaces

SenseShapes [Olwal et al. 1999]

Volume Catcher [Owada et al. 2003]

Participatory design

Cooperative Prototyping [Bødker and Grønbæk 1989]

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CINCH In Use

CINCH was evaluated using:

Event logs

Screen Captures

Interviews

Scientists self-reported 2-5 times speedup when using CINCH.

CINCH has been adopted and is being used actively.

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Final Thoughts

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AcknowledgmentsComputer Science

Scott Klemmer (Stanford U.)Tomer Moscovich (Brown U.)

NeuroscienceBrian Wandell (Stanford U.) All the participants in our experiments

SponsorsNIH (EY003164 - 26)Charles A. Dana Foundation (5-38267.574.1)

stanford hci group

http://graphics.stanford.edu/projects/dti

Questions?David Akersdakers@stanford.edu