Visual editor of streaming video broadcasted from different servers

Abstract: In the article the principles of creation of software tools capable to support, on the basis of use of the proposed visual editor, the process of creation author's media content formed from various distributed streaming Internet resources are considered (first of all the streaming video broadcasted in the formats used in HTML5). This content is a result of virtual editing (combining different streams, removing the stream data fragments, insertion of new fragments in a video sequence, simultaneous overlay on the video sequence of the new broadcast sound or additional elements, etc.) and is reproduced as a unit or if it is set, in hypervideo mode. The organization of the developed software and the interface of the visual editor are described.Note: Research direction:Programming, parallel computing, multimedi

Quantum oscillations of resistivity in bismuth nanowires

We studied the influence of uniaxial deformation on the transport properties of bismuth wires in the wide range of temperatures. Measurements of the resistance of bismuth nanowires with several diameters and different quality reveal oscillations on the dependence of resistance under uniaxial strain at T = 4.2 K. Amplitude of oscillations is significant (38%) at helium temperature and becomes smearing at T = 77 K. Observed oscillations originate from quantum size effect. Evaluation of period of oscillations allows us to identify the groups of carriers involved in transport. Calculated periods of 42.2 and 25.9 nm satisfy approximatively the ratio 2:1 for two experimentally observed sets of oscillations from light and heavy electrons

Visual Information Management Systems.

Abstract: This paper discusses various questions connected with visual information management, a database tool, specially designed to store and organize a large collection of digitized images, and delete images, and search for images using content-based visual information retrieval. Ideally, a visual information management system (VIMS) provides access to the images both by any text information associated with the image (such as the date of the image or its title), also called metadata, as well as through their content - i.e., trough their visual features that can be computed using computer-vision and image-processing techniques (examples are color histograms, shape measures, and texture measures). Queries by example are the most suitable for VIMS: user provides an entire image as a template and the system finds images that are visually similar. As VIMS computes image features, the main task in processing a similarity query is to compare these features and come up with some measure of how they differ. Once the distance between the template image and each target image is computed, target images canbe ranked in order of their similarity with the template image. Object recognition and scene understanding are still research areas, so systems using these technologies can be built within only narrow domains.Note: Research direction:Programming, parallel computing, multimedi