easyADL - Wearable Support System for Independent Life despite Dementia

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easyADL - Wearable Support System for Independent
Life despite Dementia
Two-year project Dept. of Geriatric Medicine,
VRlab, andDept. of Computing Science, Umeå
University, Sweden

Dipak Surie Dept. of Computing Science Umeå
University Sweden dipak_at_cs.umu.se
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Problem Description and General Approach

• Activities of daily living (ADL)
• Behavioural patterns
• Sense of cause
• Sense of space
• Sense of time
• Memory
• Sense of quantity
• Sense of quality
• Mutual communication
• Social interaction

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Simulation of Wearable Support System in
Immersive Virtual-Reality

• Wearable Infrastructure Vs Infrastructure in
  the environment

• Accelerate (design re-design) prototype
  development process
• Build prototypes ahead of technology
• Explore UBICOMP user interfaces
• Identify feasible sensor configurations and
  combination of computing algorithms

Hardware Prototyping...

• Wearable hardware prototype development and
  evaluation...

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Multi-layer Architecture
Activity Modeling Layer Hidden
Markov Model(s)

User Labelling Text, Picture, Audio

• Event Templates

Classification Layer Event
Templates
Clustering Layer Growing Neural
Gas algorithm
Feature Extraction Layer (Client)
Feature Extraction Layer (Server)
Objects grabbed/released Left Hand Right Hand
movements Body posture
Sensing Layer
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Scenario-based Analysis

• Virtual Reality Home Environment
• 3 ADL from AMPS Framework
• Preparing coffee and cakes
• Having a coffee break
• Hand washing the dishes

Initial prototype evaluation User-Environment
Interaction Users state State of space
surrounding the user

• Ethnographical Studies in Real Home Environment
• 15 ADL from AMPS Framework
• Wearable audio video recorder with bullet
  camera
• Interviews with the subject and subjects family