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Even though super-resolution is a promising technique, it can cause unwanted increase of compression noises, if it is applied to an image coded with a low bit-rate. To solve this problem, we propose an integrated framework to reduce compression noises and to recover high-frequency components of a coded low-resolution image. The framework effectively combines two patch-based algorithms, a patch-matching-based...
We examine the power saving of the demand responsive intelligent bus stop system by the normally-off. Authors designed the demand responsive transport (DRT) bus system for a suburban city. This system uses the intelligent bus stop. Such the bus stop usually consumes a lot of energy, and needs high cost load work for the power supply. However, we revealed frequency of the system use from a practical...
This research proposes a novel product display system for electronic commerce websites that employs a panoramic photo of the inside of a real store as the background. Using a tablet or smartphone as a controller, the user is able to freely move around the inside of the store while viewing the panoramic photo, similarly to Google Street View. Also, the user can select a product they are interested...
This paper presents a Bayesian network-based method for estimating a distress of road structures from inspection data. The distress is represented by a damage of road structures and its degree. In the previous work, the distress was estimated by utilizing Bayesian network based on categories of road structures, details of road structures and damaged parts. However, inspection data include not only...
Depth from Defocus (DFD) is known as the technology which is able to estimate depth in the scene by a monocular camera without any additive devices. Using this advantage of DFD, we improved the speed of Auto Focus (AF). To apply DFD to AF, it is necessary to capture 2 images that have a small amount of “difference in focal positions” (we call DiFP). In this paper, we show the performance of the depth...
This paper describes a multi-purpose display and a timer developed for athletics. Traditional displays can be used for only one item of athletics, but this display can be used at long jump, throwing events, and combined events. In addition, these devices have the features of wireless communication, low cost, and easiness for users to handle. These have been already on sale and used at athletic games,...
We developed a model checking system for elevator group controllers, named Éclair. Éclair can perform model checking of a given S-ring model by invoking SPIN. In this paper, we described how to convert the S-ring model into a SPIN's input model. We also showed the test capability of Éclair from the viewpoint of scalability.
This paper presents a multiple feature fusion method using topic model for social image visualization. Images in social media are represented from several aspects such as their visual information and tags. The proposed method extracts low-level features from social images and their tags and calculates their integrated high-level features. Specifically, the proposed method applies multilayer multimodal...
Quantitative evaluation method of visual induced motion sickness (VIMS) on interactive video using biosignals index and body-motion indices were experimentally investigated. The results indicate that biosignals from RRI and respiration combined with the peak value and time-shift of cross-correlation between body motion signals and global motion vector might be a useful VIMS index for non-experts on...
This paper reports a pilot study where we link different types of data for explaining prices. In this study, we link the apartment rent data with the publicly accessible location data of landmarks like supermarkets, hospitals, etc. We apply the regression analysis to find the most important factor determining the apartment rents. We claim that the results of this type of spatial data mining can enhance...
Recently, people pay more attention to healthy living conditions. Such changing lifestyle leads to demand for wearable health monitoring, new medical technology, healthy food and clean air. Thus, indoor air monitoring and control will be an emerging industry with a huge market size. In this paper, we have developed an indoor air monitoring system with ability to observe volatile contaminants, especially...
We propose an inverse cross-bilateral filter for sharpening a target image with the aid of a reference image. The effectiveness of the proposed method is examined for the cases using a flash photography or a near-infrared image as the reference images.
We investigated the perceived direction of the arrival of sound using bone-conduction headphones. Sounds were separately presented through air-conduction headphones or bone-conduction headphones in a series of experiments and participants judged the direction of arrival. The perceived direction through the bone-conduction headphones inclined toward the center. We propose a design concept to compensate...
In this research, a novel magnetic catalyzed SnO2 with Mn3O4 of CMOS-MEMS gas sensor is firstly proposed. Beyond the conventional heating methods to obtain high chemical reaction rate, the sensitivity of gas sensors can be enhanced by using our proposed magnetic catalysis technique at ultra-low power consumption. Fabrication of sensor structure is realized by the standard 0.35µm CMOS process and MEMS...
The authors propose a robust watermark method to cope with the situation when double attacks simultaneously occur. Under a JPEG compression attack and cropping attack whose arbitrary positions to be attacked are assumed. Experiments with a heavy JPEG compression rate of 1/33 show a satisfactory detection ratio of 99.9%.
We proposed a multi-agent and multi-player artificial school class game. This game has been designed to solve the bullying problem in school. Human players participate in the game and interact with other players, or agents, to make friends with those who have similar sense of values.
This paper proposes a super-resolution system for 4K-HDTV. In the basic super-resolution system, the input image is decomposed by the total variation filter into structure and texture components. The structure components are enhanced by the shock filter whereas the texture components are enhanced by the pulse enhancement filter. Two important additional functions are included in the proposed system:...
There is a demand for a way for blind persons to receive information at any time and in any place. This is impossible to realize with existing user interfaces using voice output, so this paper introduces the world's first a wristwatch-style refreshable braille display. This braille display has 8 braille cells and 16 input switches. It is controlled from a host computer via the Bluetooth communication...
A novel aerial imaging system consisting of two roof mirror arrays is proposed. The proposed imaging system is based on heterogeneous imaging, which means that the system forms an aerial real image in a crosswise direction and a virtual image in a lengthwise direction. The aerial image formed by the proposed system is not distorted by Seidel aberrations because the imaging is based on retro reflection...
Managing privacy leakage is of great importance in the Android platform. The variety of new user-privacy fraud reveals a new challenge in predicting potential privacy disclosure threats and protecting the privacy inside our pocket. In this paper, we present an analysis framework, called AppLeak, for information loss evaluation, privacy leakage detection, and privacy risk assessment on Android applications...
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