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  • So there is actually an organization about preventive medicine.
  • In the USA the organization journal name is American Journal Of Preventive Medicine.
  • I think, from the name, this suggests about a medical foundation that research a method to prevent disease and illness.

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  • Wearable cameras and additional software analysis tools can be used to measure sedentary behavior.
  • Here is the definition of the sedentary behavior.
    • Sedentary behavior refers to any waking activity characterized by an energy expenditure less and equal then 1.5 metabolic equivalents and a sitting or reclining posture. In general this means that any time a person is sitting or lying down, they are engaging in sedentary behavior.
    • This definition is taken from this website, http://www.sedentarybehaviour.org/what-is-sedentary-behaviour/.
  • So, I think wearable camera can be used as measurement from what they are usually multiple sensor.
  • Measurement then will be given by the software analysis tools.
  • I suggest that this software analysis tool is like a "state of the art" computer vision program to sort the video based on events that the user wants to know.

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  • Wearable camera can be used to detect these kind of behaviors.
    • Active travel behavior (walking, ...).
    • Nutrition related behavior (diet, ...).
    • Sedentary behavior.

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  • There is this person named Aiden R. Doherty from Department Of Public Health from University Of Oxford.
  • I am not sure is he will be relevant in my project or not.

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  • The idea of using camera is to make the wearer to be able to recall events precisely after reviewing images back from the camera.
  • Additionally, immediate cognitive function might also improve.
  • I am not sure what is immediate cognitive function?
    • The closest Google search query result in Wikipedia entry about working memory.
    • Working memory is a cognitive system with a limited capacity that is responsible for temporarily holding information available for processing.
    • Basically the short - term memory as it is mentioned in my course about learning on how to learn.
    • Here is the link to the Wikipedia page, https://en.wikipedia.org/wiki/Working_memory.

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  • There is this paper titled, "Using The SenseCam To Improve Classifications Of Sedentary Behavior In Free - Living Settings".
  • In this paper there will be defined what is the advantage of using camera compared to use any sensor like accelerometer.
  • The thing here is that, when studying about human interaction there should be context for every value input from sensor.
  • With accelerometer context agent is necessary.
  • So why not using whole video instead.
  • In the end there would be context agent that would likely to be human.
  • There is this woman named Jacqueline Kerr that found TV and screen based human activity can be traced correctly by using accelerometer.

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  • In the end the resultant behavior will be summarized by human.
  • So in term of step, using accelerometer and video camera should not matter that much.
  • However, information contained in accelerometer is limited.
  • Where when using camera, there could be limitless amount of thing those can be inferred.

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  • Study research from Ireland use video based wearable sensor to manage diet of athlete or any physically active student.

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  • SenseCam provides more information regarding dietary intake patterns.
  • The informations here are such as these.
    • Dietary intake patterns.
    • Food's brand name.
    • Forgotten foods.
    • Leftovers.
    • Portion size.
  • This eliminates error on self - reporting on food diaries.

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  • These videos also provide the professionals (doctor or nutritionist) on how to give correct and proper feedback to the SenseCam wearer.

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  • The overall effect of using SenseCam and doing self - evaluation is cognitive stimulant in short term.

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  • Reading the diary entries from SenseCam was found to improve autobiographic memory by prompting events into the images.
  • There was a hypotheses about using SenseCam for memory rehabilitation.

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  • However, for using SenseCam for memory rehabilitation further researches are still necessary.
  • There was also suggestion that wearable camera sensor like SenseCam could be use to treating neurodegenerative diseases like Alzheimer.

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  • Smart phone was also suggested as a possible tool to mimic and replace the functionality of SenseCam.

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  • There is an article by Paul Kelly about ethics on using intrusive camera based wearable sensor in public spaces.
  • There should be an ethical research about this going on the background.
  • Here is the full screenshot of the full article.

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