В статье рассматривается и обосновывается принцип совмещения и обработки разнодиапазонных изображений на базе матричных приборов с зарядовой связью. Разработанный принцип предлагается как альтернатива программной реализации задачи совмещения и обработки разнодиапазонных изображений. Проведен анализ существующих методов совмещения разнодиапазонных изображений и обоснована недостаточность этих методов в плане повышения информативности результирующего изображения. Рассмотрен метод совмещения и обработки изображений с целью повышения информативности, реализуемый цифровыми методами. Обоснована возможность и перспективность реализации указанной задачи на базе дискретно-аналоговых систем, а именно базе матричных приборов с зарядовой связью. Предложен принцип двухэтапного воздействия на зарядовые пакеты, формирующие пиксели изображений в матричных приборах с зарядовой связью с целью их деления в заданных пропорциях, указанных в цифровом методе, и внедрения нужных частей деления в соседние запоминающие ячейки. Показана простота реализации процедуры деления и перемещения частей зарядовых пакетов посредством перемены напряжений на фазных шинах матричного прибора с зарядовой связью. Аналитически определена передаточная характеристика матричного прибора с зарядовой связью в предложенном режиме. Определен коэффициент прямоугольности передаточной характеристики. The article discusses and substantiates the principle of multi-range images combining and processing based on matrix devices with charge coupling. The developed principle is proposed as an alternative to the software implementation of the task of multi-range images combining and processing. The analysis of existing methods of combining multi-range images is carried out and the insufficiency of these methods in terms of increasing the resulting image information content is confirmed. The method for images combining and processing with a view to enhancing the information content, which is performed by means of digital methods, is considered. The possibility and prospects of the specified problem employment with the aid of discrete-analog systems, namely, the basis of matrix devices with charge coupled, have been affirmed. The principle of a two-stage impact on charge packets, which form image pixels in matrix devices with charge-coupled devices, is suggested with the aim of dividing them in specified proportions, indicated in the digital method, and introducing the necessary division parts into adjacent storage cells. The application simplicity of the procedure for dividing and moving parts of the charge packets by changing the voltages on the phase buses of the matrix device with charge coupling is shown. The transfer characteristic of the charge coupled matrix device in the outlined mode is determined analytically. The coefficient of the transfer characteristic squareness is ascertained.

Problem statement. The problem under consideration is caused by the need to develop an effective system for monitoring the condition of pediatric patients with a diagnosed ventricular septal defect. Within the framework of the proposed approach, special attention is paid to the creation of a model that allows predicting the development of potentially dangerous hemodynamic disorders. Work purpose. development of a method for in silico modeling of the current functional status and dynamics of changes in the cardiovascular system in children with VSD, aimed at optimizing clinical decision-making and reducing the level of infant mortality. Results. A specialized software package for mathematical modeling of the cardiovascular system in children with ventricular septal defect has been developed. The created system provides comprehensive forecasting of the physiological state of a developing organism, taking into account age-related hemodynamic characteristics. The developed computational system incorporates a comprehensive multiparametric model capable of quantitative risk stratification for impending critical cardiovascular events, early detection of preclinical hemodynamic disturbances, and in silico evaluation of therapeutic interventions. This integrated modeling framework enables probabilistic assessment of pathophysiological progression while providing clinically actionable insights through simulation-based treatment optimization. Practical significance. of the study results lies in the possibility of preventing life-threatening complications through timely detection of negative trends in changes in hemodynamic parameters.

Background. The paper considers the problem of creating a mathematical model of a heart with a congenital anomaly of the interventricular septum. This malformation is one of the most common and occurs both separately or in combination with other abnormalities. Materials and methods. The mathematical model refers to zero-dimensional models of blood circulation and consists of sequentially connected active and passive chambers. Laplace's law for a thin-walled sphere, a 4-element Hill muscle model and an augmented Starling's law are used to model active chambers. The ventricular septal defect in the model is represented by the equations of connection between the ventricles. Results. Examples of numerical studies of the model are given, on the basis of which a strong effect of an interventricular septal defect on general blood circulation has been established. Conclusions. The model will provide additional information for early diagnosis, as well as become the basis for medical decision support systems in cardiology practice.

An important aspect of medical rehabilitation using exoskeletons is objective monitoring of the effectiveness of the exercise program. This control is most often manual and relies on the attention of a rehabilitation physician, but advanced rehabilitation systems also use computer vision technology. Topological skeletons generalize large areas of digital images, representing a virtual internal framework of the analyzed object. The patient and the exoskeleton are described either as a set of spatially disparate (but not explicitly related to either the patient or the exoskeleton) topological skeletons, or as branches of a single topological skeleton which does not allow for objective monitoring of joint displacements. A method to solve this problem for medical rehabilitation using an upper-limb exoskeleton is proposed. It includes the following stages: (I) identifying the exoskeleton, as well as upper and lower parts of the patient’s body; (II) independent construction of three topological skeletons (separately for the exoskeleton and for the upper and lower parts of the patient’s body); (III) their integration. This approach allows for accurate, real-time analysis of movements in the upper-limb joints and prompt notification to the rehabilitation physician of any significant deviations in the technique of performing prescribed exercises.