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.
In this work the notion of automated risk assessment for 3D scenes is addressed. Using deep learning techniques smart enabled homes and domestic robots can be equipped with the functionality to detect, draw attention to, or mitigate hazards in a given scene. We extend an existing risk estimation framework that incorporates physics and shape descriptors by introducing a novel CNN architecture allowing...
The work describes a heuristic control strategy comprising reactive obstacle avoidance for omni-directional planar robot. The proposed method is based on artificial potential fields. Appropriate reshaping of repelling potential fields incorporating warping vectors and warping functions reduces the problem of local minima. Moreover, a solution to saddle point avoidance based on potential hessian is...
Human bodies and movements exhibit inherent symmetry. However, an important class of everyday movements, such as walking, does not maintain symmetry at every time instance. The symmetry in these movements is a spatiotemporal glide-reflection symmetry. The ability to measure this type of symmetry will provide us opportunities for various computer-aided applications including health monitoring, rehabilitation,...
In this paper we study the shape space of curves with values in a homogeneous space M = G/K, where G is a Lie group and K is a compact Lie subgroup. We generalize the square root velocity framework to obtain a reparametrization invariant metric on the space of curves in M. By identifying curves in M with their horizontal lifts in G, geodesics then can be computed. We can also mod out by reparametrizations...
It is assumed that Japanese can analogize the meaning of original text if they read the original text according to the commonality of written expressions, such as the commonality of Kanji and Chinese characters in case of Chinese-Japanese translations. In this study, participants rewrote translated sentences while viewing simultaneously the original sentences written in Chinese and the translated...
Learning the dynamics of shape is at the heart of many computer vision problems: object tracking, change detection, longitudinal shape analysis, trajectory classification, etc. In this work we address the problem of statistical inference of diffusion processes of shapes. We formulate a general Itô diffusion on the manifold of deformable landmarks and propose several drift models for the evolution...
As the number of Web APIs is rapidly increasing, it is an urgent issue to discover qualified Web APIs and provide value-added services by orchestrating them. However, most of the interface descriptions of Web APIs are informal, and the Web API SLA contracts, which are a key to quality of services orchestration, require manual operations at the consumers. Meanwhile, applying the blockchain, the distributed...
Localization and mobility monitoring are fundamental functions for constructing a smart living space. This paper presents a smart living platform based on motion sensing carpets. It is developed in the form of 50×50cm ‘puzzle floor mat’ units, which allows the users to assemble by themselves according to their desired shape and area. From the pressure data collected by motion sensing carpets, functions...
In this paper, we propose an image transformation method for correcting projective distortion which commonly occurs in surveillance camera systems. The method geometrically transforms a planar image into an equirectangular image using a spherical image sensor model. The transformation makes objects standing perpendicular to the ground to appear vertically in the image and also makes objects at the...
Caching decisions by default seek to maximize some notion of social welfare: the content to be cached is determined so that the maximum possible aggregate demand over all users served by the cache is satisfied. Recommendation systems, on the contrary, are oriented towards user individual preferences: the recommended content should be most appealing to the user so as to elicit further content consumption...
Vectorization is happened by a wave method. The wave method is to analyze the path of the way to the spherical wave in the image. At every step is analyzed offset center of point's mass forming a new step wave relative to the previous position of the center of mass. Offered of the perfected wave tracing algorithm is to use a spherical wave on the combined raster image while creating skeleton. The...
This In the paper we propose optimal algorithm for area triangulation between m arbitrary polygons on the plane with time complexity O(NlogN). The efficiency of the algorithm is achieved by reducing the problem to the triangulation of simple polygons with holes. A simple polygon with holes we triangulate using the monotone chains method. It allows getting a simple implementation.
In this paper a method of monostatic RCS measuring in real conditions for complex shaped objects is proposed. The basic idea of the method is to provide measuring in near field zone for different parts of the object (fragments) separately. This technique is titled «decomposition method». After such measurements all RCS data are summed and one can obtain the average RCS of investigated object. Such...
The new approach for creating the non-homogeneous media with specific refraction coefficient is proposed. The electromagnetic wave scattering problem is solved at condition that the embedded in the initial homogeneous media bodies are small and described by their surface impedance. The numerical results confirm the possibility to create the media with the new refraction coefficient that changes in...
Chinese character culture is the ancients will be the experience of life, into words, language, vocabulary and other forms and content, and derived from calligraphy, seal and other traditional artistic expression, with the creation of ingenuity; and for Nushu such as the disappearance of the national language there is a lack of convenient and effective design conversion model.
According to the study, in the busy work, life pressure, many people will buy and use the healing products to meet emotional needs. However, the healing sensation after use may be affected by different personality traits or personal preferences. Therefore, in the healing product appearance design, must be different with the different personality traits? By this design and planning, will get a better...
This research will collate and analyze the structure and form attributes of the 3D space created by the rules of folding used in origami, the art of paper-folding, to provide more references for practical design application and more possibilities for interdisciplinary integrated development.
Mechanisms with springs were used for variety of purposes from the 2nd century BC in ancient China. Barbed-springs locks and original crossbows are representative types that belong to reconfigurable mechanisms. Several available books with mechanical illustrations introduce the structures and functions of mechanisms with springs in ancient China. However, no historical records describing the appearance...
The understanding of the pain frequency of patients can facilitate medical professional diagnosis, so self-management tools for pain have gained increasing attention. However, there have been just a limited number of tools for children who are not highly literate. In this study, the first of 10 children aged from 3 to 9 as objects, to clarify the extent of the children's understanding of graphic design...
As the birth rates in Taiwan continue to decline, parents will pay more attention to the coming generation of children and thinking about how to educate them. Many small children spend much time watching television, playing electronic games or using the internet, and less time reading. Pop-up books provide wonderful reading experience with its' interesting interaction and vivid content, becoming an...
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.