Valery Grishkin

Unification of control in P2P communication middleware: Towards complex messaging patterns

Complex distributed service appliacations require extensibility of messaging patterns: Traditional synchronous Request-Response and Publish-Subscribe need extensions that would provide an asynchronous approach, furthermore with current P2P (Peer-to-Peer) communication libraries such as ZeroMQ and NanoMsg a message pattern description is fundamentally limited to one action type for a group of connected peers. Business logic often requires alterations to load balancing schemes for most effective tasks distribution. We propose a lightweight library and a set of modules sitting on top of common P2P communication transports and provide vast patterns extensibility with support for business logic participation in load balancing.

Multiple segmentation of the image series

The combined segmentation method of the same objects in a series of images is proposed.<br/>This method is based on the propagation a single image segmentation results for all images in the series.<br/>Images in the series transformed to the base image and segmented using previously obtained masks.

Application of Multi-core Architecture to the MPDRoot Package for the Task ToF Events Reconstruction

In this article, we propose an approach that allows acceleration of the Time-of-Flight (ToF) event reconstruction algorithm implementation, which is a part of the Multi Purpose Detector (MPD) Root application.

Monitoring of the State of Stone and Bronze Monuments

Methods and approaches to be used in monitoring the monument condition are discussed. The main stages of materials science expert analysis are considered. The technique for qualimetric assessment of the integrated condition of the material and various options of mapping the forms of its deterioration are described: those based on the results of visual inspection, ultrasonic sounding, and also using computer technologies, including 3D laser scanning. The potential and efficiency of comprehensive laboratory instrumental methods for studying the material of the monument and the products of its deterioration are analyzed: polarization microscopy, X-ray powder diffraction, scanning electron microscopy, electron microprobe analysis, IR spectroscopy. The design of the database on the state of sculptural monuments in St. Petersburg, for the storage, analysis and structuring of the material gathered during the monitoring, is presented.

3D Reconstruction of Landscape Models and Archaeological Objects Based on Photo and Video Materials

Computer technology is used to reconstruct the main parts of archaeological monuments by creating their 3D models. There is a number of software products that can solve this important task of historical and cultural studies. However, the existing solutions either require expensive specialized equipment or may only be used by specially trained personnel. This makes it relevant to create a software that could reconstruct 3D models automatically.

A system for the recognition of biofouling on the surface of the monuments of cultural heritage

This paper proposes a system for the recognition of biological contaminants existing on the surface of the cultural heritage monuments. Knowing the type of biological contaminants is necessary to protect the monuments from their harmful impact. The proposed recognition system uses as input a series of images of cultural heritage monuments. The series contains images obtained in the visible and near infrared spectral bands. During preprocessing a series, all images are converted to a selected shooting point, and the background is removed. Feature vector is built from combinations of formal vegetation indices. To recognize the type of biological contaminants, a pretrained classifier based on SVM method with RBF kernel is used.

Interface method of digital devices testing

The method of constructing testing impacts for digital devices is proposed. The method is based on the representation device as a set of models data exchange interfaces. This approach allows to build models of input impacts as a collection of standard operations inherent to the corresponding interface.

Methods of modeling of the test inputs for analysis the digital devices

The automation of test software construction for the modern digital devices is required. For this purpose, the computer-aided designed system for the test software is design. The method of test program development for the control and diagnosis of digital devices.