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Designing Augmented Reality Applications for Personal Health Decision-Making (HICSS 52)

Poor diet and physical inactivity are important factors that contribute to the obesity outbreak. ŒTherefore, healthy eating habits are crucial for physical well-being. We present PHARA, a personal health augmented reality assistant that recommends healthy products to people in their everyday lives.

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Designing Augmented Reality Applications for Personal Health Decision-Making (HICSS 52)

  1. 1. Katrien Verbert Designing Augmented Reality Applications for Personal Health Decision-Making Francisco Gutiérrez Nyi Nyi Htun Sven Charleer Robin De Croon 1 https://augment.cs.kuleuven.be/
  2. 2. PokemonGo 19 Crimes AR 2 [augment reality] Apple’s AR measure
  3. 3. 3
  4. 4. 4 Food labels are considered an essential element in strategies against unhealthy diets and obesity. (Cecchini and Warin, 2016)
  5. 5. 5
  6. 6. 6 PHARA: Personal Health Augmented Reality assistant
  7. 7. 7 ● Study AR in the critical moment of decision: when users hold the food product in their hands. ● Assist users by providing rich and consistent visual components that support their decision-making process. ● Follow a user-centered approach in a iterative design process. ● Study the impact of AR interfaces on how to present information to the end-users in decision-making. [goals]
  8. 8. 8 Regarding subjective and objective factors: What are the benefits and tradeoffs of using popular layouts such as, stack, grid, list and pie in AR applications within handheld and HMD experiences to support decision-making? [research question]
  9. 9. 9 a) MS HoLolens (HMD) c) iPhone 6S (Smartphone) b) NSW Joycon (controller) [devices]
  10. 10. 10 [iterative design]
  11. 11. 11 [AR components]
  12. 12. 12 [AR components] Users' Decision Behavior in Recommender Interfaces: Impact of Layout Design (Chen and Tsoi, 2011)
  13. 13. List Layout Stack Layout 13 [AR components] Smartphone HoloLens
  14. 14. 14 [AR components] List Layout List Layout Smartphone HoloLens
  15. 15. 15 [AR components] List Layout Grid Layout Smartphone HoloLens
  16. 16. 16 [AR components] List Layout Pie Layout Smartphone HoloLens
  17. 17. ● Within Subjects ● n = 28 (1F, 27M) Ages from 22 to 38 (M = 25.81, SD = 4.57) ● Number of conditions: 2 (HoloLens, Smartphone) ● Task 1: - Select two products that you would like to have for dinner... - Select two similar products... - Select and replace with two alternatives... - Reflection... ● Task 2: - Imagine that you have some friends coming over... select two products… and put them in the basket. ● Post-Questionnaires ○ TAM (Technology Acceptance) ○ NASA-TLX (Task Load Index) 17 [user study]
  18. 18. 18 [scenario]
  19. 19. 19 [results] food choices overtime Choice 1 Choice 2 Choice 3 Choice 4 Choice 1 Choice 2 Choice 3 Choice 4
  20. 20. 20 [results]
  21. 21. 21 [results]
  22. 22. 22 [results]
  23. 23. 23 [results]
  24. 24. 24 [conclusions] ● We explored and evaluated different layouts to present information in a decision-making scenario. ○ Our results are comparable to those of (Chen and Tsoi, 2011) ● PHARA allows users to make informed decisions, and resulted in selecting healthier food products. ● Stack layout performs better with HMD devices with a limited field of view, like the HoloLens, at the cost of some affordances. ● The grid and pie layouts performed better in handheld devices, allowing to explore with more confidence, enjoyability and less effort.
  25. 25. 25 [future work] ● Long-term goal: influence healthy grocery store shopping and in-restaurant purchase behavior. ● Evaluate the potential of our approach in real-life settings. ● Development of more AR components following a user-centered approach. ● Wine decision-support scenario coming up. (PHARA Wine)
  26. 26. 26 [phara wine]
  27. 27. 27 [questions] Francisco Gutiérrez [Augment/HCI - KU Leuven] francisco.gutierrez@cs.kuleuven.be @FranciscoGhz | Twitter https://augment.cs.kuleuven.be/ Thanks!! :)

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