H. Tanaka

H. Tanaka
Kanagawa Institute of Technology

About

30
Publications
1,493
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87
Citations

Publications

Publications (30)
Article
Recently, multi-point synchronous sensing, which is used for structural health monitoring, is desirable to allocate channels to many sensor tags in a short time. In this study, we have proposed an approach for accelerating channel allocation in the synchronous streaming protocol. A sensor tag uses subcarrier frequency for backscatter communication....
Article
In the classification of sign language motion, it is vital to measure the movements of many points on human body. While the method of calculating the nodal coordinates of human body from camera image is limited to the detection of two dimensions, acceleration sensor can detect three-dimensional movements. In this investigation, on the measurement o...
Chapter
So far, on the premise of using a monocular optical camera, sign language motion classification has been performed using a wristband and color gloves with different dyeing on each finger. In this method, the movement of sign language is detected by extracting the color region using color gloves. However, this method has problems such as the burden...
Article
Modal analysis using many accelerometers is a popular and essential testing of artificial structures and machines. The elimination of wire harness to power and collect data from many accelerometers attached to the object under testing is strongly demanded to reduce the time for testing and also to avoid the disturbances caused by the weights and co...
Chapter
Sign language is a major means of communication for people with hearing disabilities. However, there are very few hearing people who have learned sign language, and this is a great barrier to communication between hearing-impaired and hearing people. While automatic speech interpretation has already been put to practical use in some fields, there r...
Chapter
Many devices can inform the user of everything from a visitor’s arrival at the door to a dangerous gas leak detection. For hearing-impaired people, there are some devices that can notify using light, etc., rather than by sound. However, these are individual devices and are relatively expensive due to their limited production volume. In this paper,...
Chapter
This paper presents the results of a feasibility study of a deep learning scheme for sign language motion recognition. Capturing the motions used in sign language was conducted using specially designed colored gloves and an optical camera. Deep learning and conventional classification schemes were used for motion recognition, and their results are...
Article
Although positioning using sound waves has achieved high accuracy, specific sounds such as ultrasonic waves and spectrum-spread sounds are used as sound sources for positioning. The purpose of this paper is to clarify the location of various sound sources in an indoor living space, which is the actual usage environment. We propose a positioning met...
Chapter
Sign languages are used by healthy individuals when communicating with those who are hearing or speech impaired as well by those with hearing or speech impediments. It is quite difficult to acquire sign language skills since there are vast number of sign language words and some signing motions are very complex. Several attempts at machine translati...
Article
The authors have developed an accurate indoor positioning system with an error of just a few cm by using sound. It is possible to a realize data transmission function since the sound wave is the same as the radio wave. This paper presents the method and a new system that achieves both positioning of plural sound sources (user terminals) and data tr...
Conference Paper
Sign language is commonly used as one means of communication for hearing-impaired or speech-impaired people. However, there are many difficulties in learning sign language. If automatic translation for sign language can be realized, it would be extremely valuable and helpful not just to those who are physically impaired but to unimpaired people as...
Conference Paper
Sign language is a commonly-used communication method for hearing-impaired or speech-impaired people. However, it is quite difficult to learn sign language. If automatic translation for sign language can be realized, it becomes very meaningful and convenient not only for impaired people but also physically unimpaired people. The cause of the diffic...
Article
Using ultrasonic sound, the authors have been investigating a high accuracy indoor positioning system with an error of just a few cm. Since ultrasonic transmitters are not in common use, this represents a barrier to diffusion. This paper presents a method using widely dispersed smartphones which satisfies the twin demands in practical use for high...
Conference Paper
This paper presents a method of map matching that is a scheme for accurate guidance of an electric wheel chair. Indoor navigation seems to require more accurate guidance than outdoor areas, the location estimation by the rotary encoders embedded in the wheel chair cannot be satisfy the accuracy requirement, because estimation error is accumulated a...
Article
This paper presents a hazard/crime incident information sharing system using cell phones. Cell phone penetration is nearly 100% among adults in Japan, and they function as a telecommunication tool as well as a Global Positioning System (GPS) and camera. Open source software (Apache, Postfix, and MySQL) is installed on a system server, and together...
Chapter
This paper presents a hazard/crime incident information sharing system using cell phones. Cell phone penetration is nearly 100% among adults in Japan, and they function as a telecommunication tool as well as a Global Positioning System (GPS) and camera. Open source software (Apache, Postfix, and MySQL) is installed on a system server, and together...
Conference Paper
This paper describes a new input method that makes use of eyelid blinking. We found that the electromyographic (EMG) signal generated by blinking can be detected using a commercially available brain sensor. Since it is impossible to distinguish between voluntary and involuntary blinks, we propose setting a specific time duration between eyelid clos...
Article
Positioning systems that use ultrasonic sensors can measure position with a high degree of accuracy. For this reason, they are an attractive option for use in indoors, where the level of accuracy required is higher than that needed outdoors. This study aims to make possible a practical ultrasonic positioning system based on what is called an invers...
Conference Paper
This paper describes new concepts and techniques for an indoor positioning system that uses ultrasonic signals to enhance practicability. This indoor positioning system can be applied to the location detection of a moving object such as a person or a goods trolley over a wide indoor area. The proposed system works by means of ultrasonic signals. Th...
Conference Paper
This paper presents a hazard/crime incident information sharing system using cell phones. Cell phone penetration is nearly 100% among adults in Japan and cell phones have functions which are sufficient as a telecommunication tool besides GPS positioning and camera functions. The open source software, Apache, Postfix and MySQL is installed on a syst...
Conference Paper
This paper proposes an indoor positioning system for detecting the location of a moving object such as a person or a goods trolley in a wide indoor area. Conventional system requires synchronization between transmission and receiving unit. As a result, they include not only an ultrasonic part but also a radio part to maintain synchronization. We ha...
Article
This paper proposes new system architecture for equipment operation based on the motion recognition using a 3-axis acceleration sensor. The small sensor is attached to the wrist with a band and is worn as a wearable device so as not to disturb body motion. The motion of the arm is detected by the acceleration sensor, and data are transmitted to the...

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