Processing set of image data
FIELD: physics, computer engineering.
SUBSTANCE: invention relates to creating a processed set of image data. The system comprises: a plurality of sets of parameter data, wherein a set of parameter data corresponds to a clinically classified population of patients and represents a transfer function, wherein the set of parameter data includes statistical distribution of measured characteristics of the clinically classified population of patients; a selection unit in the form of a computer hardware processing unit for selecting a set of parameter data from the plurality of sets of parameter data; and an image processing subset in the form of said computer hardware processing unit for applying the transfer function, represented by the selected set of parameter data, for at least part of the set of image data which is characteristic for a patent to obtain a processed set of image data.
EFFECT: high accuracy of processing a set of image data of a patient.
12 cl, 5 dwg
SUBSTANCE: invention relates to automatic acquisition of clinical MRI image data. The method comprises: acquiring a first inspection image with a first field of view, the first inspection image having a first spatial resolution, locating a first region of interest and at least one anatomic landmark in the first inspection image; a step comprising: creating a three-dimensional volume (202), determining (132) a set of contours (204) in the three-dimensional volume, identifying one or more anatomic landmarks (206) in the three-dimensional volume, automatic segmentation of the three-dimensional volume (208); determining the position and orientation of the first region of interest using the anatomic landmark; the position and orientation of the first region are used to schedule a second inspection image; obtaining a second inspection image with a second field of view, the second field of view having a second spatial resolution, the second spatial resolution being higher than the first spatial resolution; creating geometry scheduling for the anatomic region of interest using the second inspection image; and acquiring a diagnostic image of the anatomic region of interest using geometry scheduling.
EFFECT: providing fast and accurate scheduling of diagnostic scanning.
15 cl, 4 dwg
FIELD: physics, video.
SUBSTANCE: invention relates to methods of presenting a collection of images. The computer-implemented method for dynamic visualisation of a collection of images in the form of a collage includes a step of obtaining an image from a collection of images. Further, the method includes adjusting parameters of dynamic visualisation and analysing distribution of colours in local areas of the image and the collage. The method also includes modifying the image by adding decorative elements, the appearance of which depends on the distribution of colours in the local areas of the image and the collage. Furthermore, the method includes modifying the collage by changing an appearance of decorative elements in the image.
EFFECT: improved visual quality of a collection of images owing to automated modification of display of decorative elements depending on the colour of the images.
6 cl, 5 dwg
FIELD: physics, computer engineering.
SUBSTANCE: invention relates to automated drawing means. The method includes identifying a previously drawn object within a grid with a first gridline spacing; determining a dimensional unit of said object; automatically adjusting gridline spacing from the first to the second as a function of the dimensional unit, where the first spacing differs from the second and where some of the steps for identification, determination or automatic adjustment are carried out by a computer processing unit.
EFFECT: high speed of drawing by providing dynamic adaptation of the gridline spacing to the object being drawn at the present moment.
20 cl, 9 dwg
FIELD: printing industry.
SUBSTANCE: background area is detected in a bitmapped image; a background type is detected; a command is saved into a metafile, which relates to background display; multicoloured areas are detected in a bitmapped image; multicoloured areas are saved into a metafile as a command related to display of bitmapped image fragments; single-coloured areas are detected in a bitmapped image; a command is saved into a metafile related to display of single-coloured areas.
EFFECT: provision of high quality of display of a bitmapped image converted into a metafile, with considerable reduction of saved data volume compared to memory volume required to store an initial digital bitmapped image.
7 cl, 17 dwg
FIELD: information technologies.
SUBSTANCE: method for reproduction of diagram related to document includes conversion of object-diagram into description of diagram on the basis of figures, where specified object-diagram, describes this diagram with application of diagram elements, and specified description of diagram on the basis of figures describes this diagram with application of figures; and saving object-diagram in specified document so that access to initial data contained in diagram is possible. System includes object-diagram, describing diagram with application of diagram elements; graphical module capable of reproducing figures, module of diagram creation, generating description of diagram on the basis of figures, based on specified object-diagram, where specified description of diagram on the basis of figures describes this diagram with application of figures, which may be reproduced by specified graphical module.
EFFECT: provision of coordination in process of diagrams reproduction and processing in various applications, provision of unified, high-quality reproduction of diagrams.
25 cl, 5 dwg
FIELD: physics, measurement.
SUBSTANCE: invention concerns methods of electromagnetic signal processing for tool of modelling and visualisation of stratified underground fractions surrounding the tool. Electromagnetic signals corresponding to current position of tool measurement point are obtained for measurement during drilling, and multilayer model is generated by the electromagnetic signals. Histogram describing multilayer model uncertainty is used to generate multiple colour tone values, representing formation property forecasts for depth level over/under the tool, and corresponding multiple saturation values. Screen diagram is generated and displayed. Screen diagram uses colours for visualisation of formation property forecast for depth levels over and under the tool for further positions of measurement point. New column in screen diagram is generated for current measurement point. Colours of new column are based on multiple colour tone and saturation values obtained from histogram. Saturation values of new column represent uncertainties of respective forecasts.
EFFECT: modeling and visualisation of underground fraction properties during well drilling.
25 cl, 10 dwg
FIELD: physics, processing of images.
SUBSTANCE: invention is related to methods of television image processing, namely, to methods of detection and smoothing of stepped edges on image. Method consists in the fact that pixels intensity values (PIV) of image are recorded in memory; for every line: PIV of the current line is extracted; PIV of line that follows the current line is extracted; dependence of pixel intensity difference module dependence (PIDMD) is calculated for the mentioned lines that correspond to single column; PIDMD is processed with threshold function for prevention of noise; "hill" areas are determined in PIDMD; single steps are defined out of "hill" areas; PIV of line that is next nearest to the current line is extracted; for current line and line next nearest to the current line operations of "hill" areas definition are repeated; for every part of image line that is defined as single step, availability of stepped area is checked in image in higher line, if so, these two stepped areas are defined as double stepped area (DSA); parts of DSA lines are shifted in respect to each other, and DSA is divided into two single steps; values of line pixels intensity are extracted for the line that is located in two lines from the current line, and operations of "hill" areas definition are repeated; single steps are smoothened by averaging of pixel intensity values.
EFFECT: improvement of quality of image stepped edges correction.
FIELD: computer engineering.
SUBSTANCE: the system contains markup language, object model of graphics, converter of types, analyzer-translator, system of presenters, interface for applied programming of visuals and indication interface.
EFFECT: ensured organized interaction of computer program developers with data structure of scene graph for creation of graphics.
27 cl, 31 dwg
FIELD: technologies of data processing in microprocessor systems, in particular, generation of visual data displays in automated expert systems, possible use in systems for visual analysis and prediction of variable multi-parameter states of systems or processes, including individual conditions of certain person.
SUBSTANCE: in known method for color-code display from a set of all parameters on basis of one or more topic signs, subsets of parameters are grouped and ranked, with which methods of color code display are used separately, while in accordance to ranks of subsets, width of strips of parameters of subsets is formed and/or position of strips of subsets is determined on diagram relatively to strips of other subsets with their possible isolation.
EFFECT: less time needed for faster and improved quality monitoring of object states and improved ergonomics of visualization results.
8 cl, 2 dwg
SUBSTANCE: invention relates to medicine. System for determining location of relief reference point on orthopaedic implant contains device, made with possibility of processing in autoclave. Said device contains case, field generator for generation of electromagnetic field, first electromagnetic sensor for placing at specified distance from relief reference point and element, connected with case with possibility of detachment. Case is made with possibility of processing in autoclave. Said field generator contains multitude of elements, generating magnetic field and located inside case. Said device is made with possibility of functioning after sterilisation in autoclave. First electromagnetic sensor for placement at specified distance from relief reference point generates sensor readings in response to generated electromagnetic field. Said element determines longitudinal axis, representing one axis of generated electromagnetic field. System is made with possibility of using one axis of generated electromagnetic field for determination of element position relative to relief reference point.
EFFECT: invention provides possibility of easy sterilisation or processing in autoclave for re-use.
15 cl, 62 dwg
SUBSTANCE: group of inventions refers to medicine, namely to a device and a method for magnetic particle exposure and/or detection in a field of vision. For zooming-out and still accessing a patient while forming an image, the device comprises two or more transmission coil sets with neighbouring coil sets overlapped partially. The transmission coil set comprises: a pair of concentric selection field coils for generating a magnetic selection field having such space distribution of its magnetic intensity that the first subzone having low magnetic intensity and the second subzone having higher magnetic intensity are generated in the field of vision; and at least one pair of travelling field coils for repositioning spatially the two subzones in the field of vision by the travelling magnetic field in such a way as to change magnetic particle excitation locally. The above at least one pair of travelling field coils is parallel to the above pair of selection field coils and is formed by the two neighbouring turns.
EFFECT: zooming-out and still accessing the patient.
13 cl, 11 dwg
SUBSTANCE: invention refers to medicine, functional diagnostics and can be used for preclinical, predoctoral examination, assessment of the functional state of body organs and systems, and pre-diagnosis. The method involves measuring electrical conductivity (EC) of 24 representing points of 12 symmetrical meridians, determining an arithmetic mean (AM) value of these measurements and specifying a corridor of permissible values for this patient, to which the derived values are compared in order to assess the functional state of the patient's body. That involves using the following criteria: a ratio of total ECs of Yin meridian points to total ECs of Yang meridian points, a ratio of total ECs of arm points to total ECs of leg points, a ratio of total ECs of left-side points to total ECs of right-side points. ECs are measured at voltages 5V, and/or 9V, and/or 12V. If the measurements are taken at 9V, the measured ECs are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); if the measurement process is performed at 12V, the measured values are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); and at 5V: I new=1 measured*Coeff, (III), wherein in (I), (II) and (III) respectively: I new is the re-calculated EC; I measured is the measured EC; Coeff is a correction coefficient taking into account a meridian conductivity heterogeneity. The re-calculated values are transformed into adjusted ones by formula: I adjusted=I new/I mean, wherein: I adjusted is the adjusted EC; I new is the non-adjusted re-calculated EC; I mean is the arithmetic mean value of all the 24 measurements. That is followed by delimiting an individual normal corridor for this patient depending on the preset diagnostic sensitivity S and a width of corridor of the permissible EC values Wpv. The Wpv represents a range of EC values measured in this patient, whereas the diagnostic sensitivity S is specified depending on selecting the patients with a certain disease. Delimiting the individual normal corridor for this patient is ensured by measuring intermediate coefficients for lower Kl and upper Ku corridor limits respectively: Kl=1-(1-S)*Wpv/2.1 and Ku=1+(1-Kl)*1.1. Lower L and upper U limits of the individual normal corridor are determined: L=Kl* I mean and U=Ku* I mean. That is followed by comparing I adjusted to the derived limits of the individual normal corridor.
EFFECT: method provides high accuracy of the individual diagnosis.
4 tbl, 2 ex
SUBSTANCE: invention relates to medicine, electric puncture screening-diagnostics and can be used in different fields of medicine, psychology, sport, where monitoring of person's state for long-term time period with operative correction of their indices is required. Electric puncture impact on person's corporal biologically active points (BAP) by means of hardware-software complex with application of positive and negative polarities, measurement of electric skin resistance (ESR) in BAP and further analysis of results by mutual location of ESP profiles are performed. Additionally carried out is spectral diagnostics, including analysis of spectral Fourier series of frequency changes, when measured point is adapted to provoking impact of measuring current, with further formation by means of computer programme of frequency therapeutic module, consisting of patient's functional frequencies, isolated from their frequency spectrum in case when they do not correspond to their standard indices. Frequency therapeutic module is aimed at diagnosed points to carry out operative correction of functional state of organs and systems. Analysis of spectrum of frequency characteristics is realised in range 0.015-100 Hz with discreteness 0.015. Frequency therapeutic modules are formed at specified time interval of 1 minute and longer depending on patient's state. Operation of diagnostics and correction of functional state of organs and systems is realised by cycle with period (1…N) depending on patient's state.
EFFECT: method provides increase of diagnostics accuracy due to increased quantity of diagnostic characteristics and optimal reduction of noise component, with reduction of quantity of diagnosed points, which provides reduction of diagnostics time, increase of long-term monitoring efficiency due to possibility of specifying diagnostic cycles.
5 cl, 5 dwg
SUBSTANCE: invention relates to medical equipment, namely to devices for magnetic resonance. Device contains electric device or component, which includes printed circuit board, and radiofrequency shield, made with possibility of shielding electric device or component, with radiofrequency shield including earth bus of printed circuit board. Device is placed in opening of magnetic-resonance scanner in radiofrequency (B1) field. Earth bus of printed circuit board includes electro-conductive sheet or layer, which has openings, suppressing vibration of earth bus, induced due to changing in time gradient of magnetic field. Magnetic-resonance system contains magnetic-resonance scanner, including basic magnet, winding for creation of magnetic field gradient and one or more radiofrequency coils for production of radiofrequency (B1) field in studied area. Device is placed in opening of magnetic-resonance scanner.
EFFECT: application of invention makes it possible to improve efficiency of MR-compatible electric device work due to reduction of vibration, caused by radiofrequency field.
14 cl, 11 dwg
SUBSTANCE: invention can be used for diagnosing the Dupuytren's contracture (DC) of fingers. High-resolution MR imaging covering the palmar aponeurosis of interest is used to record the time of nuclear magnetic relaxation T2 * on hydrogen nuclei of isotropic signal component of the CH2 lipid group. The derived coefficient T2 * is inserted into the discriminate analysis equation: DC=-3.37+0.24·T2 *. CD is diagnosed if the equation value is <0.313. If the derived equation value is ≥0.313, the diagnosis of DC is not confirmed.
EFFECT: technique provides the non-invasive one-hour verification of the DC diagnosis at the pre-clinical stage with no imaged signs of the contracture.
1 dwg, 3 ex
SUBSTANCE: invention is intended for visualising the structure of the atherosclerotic plaque in brachiocephalic arteries in the diagnostics of a risk of ischemic impairment of the cerebral blood flow (IICBF) in patients with extensive atherosclerosis and can be used in radiodiagnostics, neurology and vascular surgery. Contrasting T1-weighed spin-echo MRI of the neck and head area is carried out with thin cuts in the axial plane, 1-3 mm thick, with the compulsory inclusion of the area of the carotid arteries bifurcation, with the introduction of a contrast agent - paramagnet in a dose of 2 mM/10 kg of body weight. The examination is carried out twice: initially and 5-8 min after the introduction of the contrast agent-paramagnetic, an image amplification index (AI) is determined for the area of atherosclerotic plaque as the ratio of intensity of T1-weighed image with contrasting by means of the paramagnetic (IT1WIcontrast) to the intensity of T1-weighed image on the initial (IT1WIinitial) non-contrasting examination AI= IT1WIcontrast/IT1WIinitial. In case ofthe plaque presence in the area of the internal carotid artery or in the place of its deviation from the general carotid artery and AI value in the area of the said plaque larger than 1.22, risk of the acute IICBF development is predicted.
EFFECT: method provides high self-descriptiveness of MRI method of examination with the visualisation of the structure of the atherosclerotic plaque, identification of the presence of neoangiogenesis, which reliably increase the risk of rupture and ischemic affection of the brain.
8 dwg, 1 ex, 2 tbl
SUBSTANCE: invention is intended for visualisation of regions of local myocardium dystrophy in evaluating efficiency of radiofrequency ablation (RFA) of renal arteries in patients with resistant arterial hypertension. Before and after RFA T1-weighed spin-echo ECG-synchronised MRI of heart is conducted by cuts on short axis of left ventricle 7-8 mm thick 8-15 min after introduction of contrast paramagnetic substance in dose 2 ml of 0.5 M solution per 10 kg of body weight. Volume of contrast inclusion into myocardium and in case of its reduction by value less than 1 cm3 in comparison with value of said index before RFA, RFA is evaluated as effective.
EFFECT: method ensures clear visualisation of myocardium injury areas, their extension and localisation.
5 dwg, 1 tbl, 2 ex
SUBSTANCE: aponeurosis boundary is identified according to the findings of the geometry analysis of layered hand MR-scans in axial and coronary projections on 1H cores in the mode of proton density measurement. The palmar aponeurosis criterion is its thickness of more than 1×10-3m.
EFFECT: method provides the non-invasive pre-operative identification in vivo of the aponeurosis boundaries for no more than 40 minutes and makes it possible to form 2D-images according to MRT findings with the topographic-anatomic verification of the palmar aponeurosis spreading.
5 dwg, 3 ex
SUBSTANCE: device for correction of sleep characteristics contains sensor for registration of electrodermal activity EDA, connected with unit of analysis and extraction of signals of skin-galvanic responses SGR, generator of stimulating electric pulses, on-skin electrodes and control unit. Device is made in form of monoblock with possibility of fastening on user's palm. Monoblocks case has front and back side, and fastening elements. Three electrodes, placed with possibility of galvanic connection with skin of user's hand palm, are located on back part. Measuring electrode is connected to input of sensor for EDA registration, with stimulating electrode being connected to output of generator of electric pulses, with the third one being common neutral electrode of galvanic circuits of said sensor and generator. Units of analysis and extraction of SGR signals and control unit are made on base of microprocessor with possibility of periodical control of current condition of galvanic contact of electrodes with skin, cyclic measuring of SGR intensity and supply of stimulating electric pulses in pauses between SGR measuring, and provide three modes of functionality: sleeping mode - in absence of galvanic contact of electrodes with skin; mode of EDA registration - in presence of galvanic contact of electrodes with skin, including extraction of SGR pulses and counting their quantity N for given time interval and comparison with threshold value; mode of stimulation - if quantity N of SGR pulses exceeds threshold value, including periodical supply of electric pulses to stimulating electrodes during specified time interval.
EFFECT: invention application makes it possible to extend arsenal of technical means for correction of patient's physical condition during sleep and further wakefulness, increase index of slow-wave sleep stage, power of delta-waves and therefore deepen sleep sensation, phases of fast eye motions, and increase sleep quality in general.
9 cl, 10 dwg
SUBSTANCE: method involves carrying out urological examination for determining hydrodynamic resistance of ureter calculated from formula Z=8Lμ/(πR4), where Z is the hydrodynamic resistance of ureter, L is the ureter length, R is the ureter radius, μ is the urine viscosity. Angle α at which the ureter enters the urinary bladder is determined from formula cosα = 8l1μ/(ZπR4), where l1 is the perpendicular drawn from the upper edge of the ureter to the its exit projection line, μ is the urine viscosity, Z is the hydrodynamic resistance of ureter, R is the ureter radius. Vesicoureteral reflux recidivation is predicted when the angle of α+90° is less than 120°.
EFFECT: enhanced effectiveness in reducing the number of recidivation cases.
2 dwg, 1 tbl