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In this research, we present a practical method to detect the insufficient brushing points. The system consists of a sensor node and a visual interface. The sensor node can be clipped onto the handler of a toothbrush while brushing the teeth and the brushed regions will be realtime displayed on the visual interface. A six-axis inertial sensor inside the node is used to detect the scrubbed areas, so...
There are 3,930,000 physical-disabled people and 740,000 mentally-disabled people in Japan. Also, 6% of nations have some disability from the survey by Ministry of Health, Labour and Welfare. Among them, the total number of physical-disabled under 18 years old is 98,000 and mentally-disable is 125,000. Those children cannot communicate without somebody's help because of severe physical or/and mental...
Problem of test suite size increases in the process of software maintenance when numbers of revision are required can be solved by reduction algorithms such random and regression test reduction. Nevertheless, the whole performance need to be improved. Therefore, this research paper proposes the new model that is used for improving the regression test reduction, which guarantees the best results compared...
Semantic techniques can be utilized for understanding the meaning of sentences in a text. We can refer the abstract of some document in order to understand its contents very quickly. But the case of video data is different. We cannot review the whole video file in a short time period just like the text document case. This paper proposes the design of video abstract extraction. In order to generate...
As an emissive display, the organic light emitting diode (OLED) endure an indispensable role on the market growth of consumer electronics. Despite the preferable power efficiency, the active matrix OLED (AMOLED) displays still consume large energy. To adaptively increase the power efficiency of AMOLED displays, we propose an adjustable pixel dimming algorithm based on the structural similarity metric...
Fiber optic sensing for strain, temperature and other physical variables has found niche markets in industries such as oil and gas production and homeland security. These sensors typically use interferometric techniques to measure subwavelength changes in the refractive index of the fiber or the distance between two reflecting elements.
It is well known that a mobile phone and an IH cooking appliance can affect implantable cardiac devices. The chargers of electric vehicles (EV) can also have a harmful effect on these devices. According to a report by the Ministry of Health, this harmful effect was detected in the worst case. However, this effect under usual conditions has not been studied. Therefore, in this paper, we conducted experiments...
In this paper we propose a robust method of displaying the archery score in real time by using image processing techniques to aid for the development of an automated scoring system after archers shoot arrows. Some experimental results are shown by using video sequences taken in an indoor environment.
Companies and public entities administer customer expectation and satisfaction surveys to identify business problems. However, devising and analyzing questionnaires is burdensome for investigators, and answering questionnaires imposes a burden on customers. Here, to address these problems, we attempt to estimate customer expectation and satisfaction using sensing technology. We hypothesize that satisfaction...
Physically weak people require support for standing up and sitting down. The purpose of this study is to develop an assistive device for sit-to-stand task in daily life. The device can support not only for standing-sitting motion but also for setting some places easy in house. And users can use the device by oneself or with caregivers. The muscle activity has been observed by using surface myoelectric...
Social network service (SNS) offers a convenient way for users to share their daily experiences and significant life events with family, friends, etc. However, the notion of SNS fatigue posits that use of social media can trigger anxiety and loneliness. In particular, the tighter and stronger social bonds that SNS seems to support increase such fatigue. Thus, this study proposes a method for providing...
Highly interactive educational contents using games are widely used, and objective evaluation of these real-time is required. In order to do this, we recorded brain waves under several interactive tasks and game situations in subjects and tried to analyze them. As a result, we focused on the proportion of beta wave components, which suggested the possibility of being able to distinguish between simple...
When shooting through a glass window, a foreground scene may be reflected in the captured image. The elimination of this reflection is useful for protecting the privacy of surrounding people, improving image recognition accuracy in robot vision, etc. In this paper, we propose a reflection-removal method based on sparse/no-sparse gradient regularizations with gradient constraints. Experimental results...
This paper suggests an upper limb motor and proprioception assessment system using head mount display (HMD) and virtual reality (VR). We designed 1-DOF reaching tasks with various distances. Each task was performed while the VR controller, which represent a user's position of end-effector, was either visible (V) or invisible (NV). 6 stroke patients with low upper limb function and 7 normal subjects...
This paper proposes an in-vehicle power line communication (PLC) system which provides an in-vehicle communication for the video and vehicle messages transmission as a reliable alternative networking medium. The proposed in-vehicle PLC system adopts an existing in-vehicle 12-V battery power system, which means we don't need an external DC power supply for in-vehicle communication equipment to achieve...
The increase in the amount of program code in electronic control units (ECUs) in vehicles has caused an increase in the number of firmware updates after sales, which stems from bugs in the program. In this situation, automakers are considering introducing over-the-air firmware update technology that has been used in the consumer electronics field. In this paper, we propose incremental update methods...
Two layer coding based on JPEG 2000 for HDR images was proposed. The proposed coding scheme, referred to as extended JPEG XT, is an extension of JPEG XT Profile A, and takes advantages as follows: freely bit rate controllability, high compression efficiency, available for over-eight-bits LDR images, and so on. In this paper, some experimental results for the quality of the reconstructed HDR images...
Recently, emotion expression of robots have been considered as a very important factor during communication between robots and human. As ways of emotion expression, there is not only verbal information but also nonverbal information such as facial expressions and body movements. In this paper, we focus on body movement, which is one of way for a robot to express its emotions. We propose an emotions...
Many Internet of Things applications provide methods to create mashup services with if-then-else approaches due to its simplicity. When a number of mashup services are increased, it may be suffered by service conflict, that is, mashup services may perform opposite actions or abnormal behavior at the same time. To overcome this issue, this paper proposes the concept of context descriptor to detect...
In recent years, because of internet technology and the promotion of open science, it has become possible to obtain information about research progress. Nevertheless, many steps must be taken to collect such information exhaustively. Even when one wants to know only a summary, one must expend much time and effort. For this study, we propose a system that collects information about each laboratory,...
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