The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
For protecting the copyright of GIS vector map, this paper present a watermarking scheme based on polygon type of ESRI by using k-means clustering algorithm. This watermarking scheme use k-means clustering algorithm to make all polygons into some clusters. Then we embed a watermark bit to the mean distance length of each polygon in a cluster by using odd-even coding. Finally, we change the coordinates...
This paper proposes adaptive watermarking scheme depending on perspective distance using hue histogram in order to protect the copyrights of satellite image. The proposed scheme uses the different color distribution and the edge component depending on the overlooking distance when acquiring satellite images. It analyzes the hue histogram of acquired satellite images to determine the perspective distance,...
This paper presents a method to detect road markings on top-view road images, which are pseudo-top-view images created by transforming each frames in foreground drive videos under influence of difference of brightness caused by varying photography environment. Road markings in pseudo-top-view images appear differently due to the variation of shadow and markings' line faded. Therefore, the recognition...
We propose a method for age estimation based on nose feature extraction. This paper focused on the nose feature that it is very changed in a growth phase. We analyzed the change of the nose feature based on Co-occurrence histogram from teenager to sixties and estimated an age by the comparison with the nose feature of the mean face. In this paper, we describe a method for analysis of the nose feature...
Broadcast sports video report is expected be the generated player data in real time. Therefore, uniform number recognition need to fast computing. Covariance feature has possibilities to do it in real time. We present a method for uniform number recognition using the covariance feature as a region descriptor. The covariance feature is represented by the covariance matrix of image features such as...
In this paper, we propose a method for fast generating a digital hologram using General-Purpose Computation on Graphics Processing Units (GPGPU). This method can reduce the computational time of generating a digital hologram by using the parallel processing with CUDA. And we demonstrate the effectiveness of our algorithm through a variety of experiment.
Tracking the articulated human body has been a difficult research because body poses change so dynamic and vary in visual appearance. Pictorial Structures (PS) with dynamic programming (particle filtering) has been widely used for tracking human body, which is highly articulated and moves dynamically. In this paper, we use PS and a particle filter for upper body tracking. However, a Markov-process-based...
A beading design diagram reading system was implemented for supporting handicraft by visually impaired persons. Beading is one of popular handicraft done by visually disabled persons as a recreational activity. However, it is not possible for them to watch symbols on design diagram. Sighted volunteers read diagrams for them but the work is hard and it takes several days to convert patterns to texts...
Detecting humans in an image sequence is one of the most difficult problems in object recognition. It is necessary to define a robust descriptor which can extract human features from images, to improve the detecting performance. Histograms of Oriented Gradients(HOG) descriptor significantly outperforms compared with the others on human detection. The descriptor is known as a robustness descriptor...
The purpose of this research is to develop automated system for measuring the amount of target fishery resources from images which are taken with underwater camera for fishery investigation in laminaria beds in Nemuro, Japan. The image analysis technology for measuring the amount of target in laminaria beds in Nemuro is needed to develop it. In laminaria beds in Nemuro, there is no efficient method...
Like fingerprint, human face can be applied as a security system because it has almost the same characteristics as that of fingerprint, in terms of the uniqueness and non transferable. Therefore, in this paper, we design and simulate fast human face recognition for the security system. It is realized by implementing the compact features of face image as data dimensional reduction and the shifting-mean...
In this paper we present a new approach to lower energy consumption of television set. Unlike existing methods, which “sense” a TV viewer through motion sensor or remote controller, our approach “monitors” the viewer through a video camera. The proposed method keeps TV screen active only if there is someone looking at the screen. When no viewer is present in front of the camera, the TV screen is dimmed...
In this paper we are proposing to detect the localization and recognition of an indoor stairway. This is a fundamental step in the implementing of autonomous stair climbing navigation, as well as the implementing of passive alarm systems intended for the blind and visually impaired. Both of these systems must be able to recognize parameters that can describe stairways in unknown environments. This...
As presented in this paper, we described the development of a consistent color reproduction software. The consistent color reproduction software was developed for the digital cinema production chain which covers shooting, post-production and screening. The consistent color reproduction software can produce digital cinema images which have minimized average color differences between display devices.
In this paper, LBP and its variant were tested on Family Face Database which was constructed in the earlier work by the author [1] in the framework of personal image management system. The combination of LBP and other features were also tested for comparison. In addition, several illumination normalizing methods, dissimilarity measures and sub-block divisions were also tested in our framework.
A new calibration algorithm for multi-camera systems using a small 3D reference rig is proposed. Extrinsic and intrinsic parameters of the cameras are recovered only by capturing the reference rig placed at different locations. Thus the proposed method yields a simple calibration means for multi-camera systems while not using large reference rig, which should occupy the image capture volume as full...
Recently, several robotic/intelligent wheelchairs that have autonomous functions to get to some goals or user-friendly interfaces, have been proposed. Although it is desirable for wheelchair users to go out alone, caregivers often accompany them. Therefore it is important to consider reducing caregivers' load and support their activities. Hence, we have proposed a robotic wheelchair that can move...
In this paper, we propose a human-tracking robot that can be used in commercial establishments such as airports and factories. The human-tracking process involves three main steps. The first is robust person identification using QR code recognition, and is the most important step in human tracking. The second is location detection using shape-based pattern matching in order to determine the position...
In this paper, we propose an effective measure to compute rareness' of pixel blocks compared with other blocks and also introduce a region segmentation method to extract significant blocks such as defects in visual inspection system. Our basic idea is based on the simple and realistic assumption that the target blocks should be detected must have different statistical characteristics from other blocks...
We designed a method for estimating the subjective age of a person; using this method, one evaluates one's own age by estimating whether a person shown in a facial image looks older or younger than oneself. Thus far, experiments have shown that Japanese people tend to underestimate their subjective age. In this study, we conducted an international comparative study to focus on the socio-psychological...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.