The Research of Developing Innovative User Interface for Food Portion Size Estimate in Mhealth

Project: National Science and Technology CouncilNational Science and Technology Council Academic Grants

Project Details


With the growth of mobile device, UI design of mobile device has become a significant issue. This project investigates innovative UI designs applicable to mHealth. Dietary intake control is one of the major preventive strategies for chronic disease and obesity. The estimate of dietary intake portion size is one of the major steps for recording dietary intake. The error derived from the estimate of dietary portion size might fail the goal of dietary intake control. Currently, most apps in inputting food portion size heavily rely on user’s knowledge for portion size estimate, which would cause a discrepancy in-between the accurate weight and the estimated weight. This project explores a solution to develop an innovative tool for apps in mHealth, based on used-centered UI design. This project will investigate two designs. The first is to design an interactive mode allowing users to select one appropriate photo from multiple ones. Another design is to accommodate simple graphics to represent visual information of food portion with the use of personal hand size, credit card, and coin as a measurement aid so as to increase the accuracy and ease-of-use for dietary intake. Members of the project will be teamed up from Chang Gung university and Chang Gung memorial hospital. This project will be divided into three phases to complete the project. Firstly, the collection of relative research. Secondly, the design and development of the model of food portion intake. Thirdly, the experiment of the prototype system will be investigate to see if the portion size estimation is improved. This tool will be used in different groups, such as high blood pressure and metabolic syndrome to provide users with an easy and effective UI to eventually reach for the self-health management.

Project IDs

Project ID:PB10308-2958
External Project ID:MOST103-2221-E182-040
Effective start/end date01/08/1431/07/15


  • mHealth
  • User-centered design
  • food portion size estimate
  • UI design


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