Camera-Based Meal Type and Weight Estimation in Self-Service Lunch Line Restaurants

Individuals, restaurant owners and health organizations are all interested in accurate information about food intake, but collecting the information in sufficiently automated way remains a practical challenge. In controlled environments, such as lunch line restaurants, the food intake can be estimated by measuring the portions upon purchase and separately monitoring the food waste, but even this requires often complicated setups such as repeated weighing of the plate after every meal component. In this work we explore the feasibility of using a combination of ceiling-mounted cameras and computer vision for estimating both the types and weights of individual food items the customers are taking in a lunch line restaurant. We describe the imaging system and weighing- based sensing for obtaining ground truth training data, and develop and evaluate deep learning models for the computer vision tasks. We demonstrate high accuracy especially in meal type identification and hence validate the feasibility of the approach. We release the annotated dataset for further development of improved methods.Peer reviewe

Impact of Serious Games on Health and Well-being of Elderly: A Systematic Review

Besides their entertainment value, serious games can have beneficial therapeutic effects for elderly people that improve their health and well-being. Games are likely to be accepted by elderly persons who have enjoyed games their lives, and because there are more and more of such elderly, it is important to investigate games as a therapeutic device. This research reviewed the literature focusing on the effects of games on elderly persons in three main types of effects: physical, cognitive, and social effects. The majority of reviewed papers focused on physical and cognitive effects, and were published in recent years, which emphasizes the relative novelty of this topic and suggests that future research will need to address social impact as well. In addition, while many papers claimed positive impacts as a result of using games, our review found that more attention should be given to research designs

Proceedings of the 50th Annual Hawaii International Conference on System Sciences

Besides their entertainment value, serious games can have beneficial therapeutic effects for elderly people that improve their health and well-being. Games are likely to be accepted by those elderly persons who have enjoyed games their lives, and because there are more and more of such elderly, it is important to investigate games as a therapeutic device. This research reviewed the literature focusing on the effects of games on elderly persons in three main types of effects: physical, cognitive, and social effects. The majority of reviewed papers focused on physical and cognitive effects, and were published in recent years, which emphasizes the relative novelty of this topic and suggests that future research will need to address social impact as well. In addition, while many papers claimed positive impacts as a result of using games, our review found that more attention should be given to research designs.</p