Radeva
Axinia Radeva, New York, NY US
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20130232094 | MACHINE LEARNING FOR POWER GRID - A machine learning system for ranking a collection of filtered propensity to failure metrics of like components within an electrical grid that includes a raw data assembly to provide raw data representative of the like components within the electrical grid; (b) a data processor, operatively coupled to the raw data assembly, to convert the raw data to more uniform data via one or more data processing techniques; (c) a database, operatively coupled to the data processor, to store the more uniform data; (d) a machine learning engine, operatively coupled to the database, to provide a collection of propensity to failure metrics for the like components; (e) an evaluation engine, operatively coupled to the machine learning engine, to detect and remove non-complying metrics from the collection of propensity to failure metrics and to provide the collection of filtered propensity to failure metrics; and (f) a decision support application, operatively coupled to the evaluation engine, configured to display a ranking of the collection of filtered propensity to failure metrics of like components within the electrical grid. | 09-05-2013 |
Petia Radeva, Barcelona ES
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20090284589 | CASCADE ANALYSIS FOR INTESTINAL CONTRACTION DETECTION - A method and system cascade analysis for intestinal contraction detection is provided by extracting from image frames captured in-vivo. The method and system also relate to the detection of turbid liquids in intestinal tracts, to automatic detection of video image frames taken in the gastrointestinal tract including a field of view obstructed by turbid media, and more particularly to extraction of image data obstructed by turbid media. | 11-19-2009 |
20100046816 | METHOD FOR AUTOMATIC CLASSIFICATION OF IN VIVO IMAGES - A method for automatically detecting a post-duodenal boundary in an image stream of the gastrointestinal (GI) tract. The image stream is sampled to obtain a reduced set of images for processing. The reduced set of images is filtered to remove non-valid frames or non-valid portions of frames, thereby generating a filtered set of valid images. A polar representation of the valid images is generated. Textural features of the polar representation are processed to detect the post-duodenal boundary of the GI tract. | 02-25-2010 |
20110044515 | DEVICE, SYSTEM AND METHOD FOR AUTOMATIC DETECTION OF CONTRACTILE ACTIVITY IN AN IMAGE FRAME - A device, system and method for automatic detection of contractile activity of a body lumen in an image frame is provided, wherein image frames during contractile activity are captured and/or image frames including contractile activity are automatically detected, such as through pattern recognition and/or feature extraction to trace image frames including contractions, e.g., with wrinkle patterns. A manual procedure of annotation of contractions, e.g. tonic contractions in capsule endoscopy, may consist of the visualization of the whole video by a specialist, and the labeling of the contraction frames. Embodiments of the present invention may be suitable for implementation in an in vivo imaging system. | 02-24-2011 |
20130123586 | DEVICE, SYSTEM AND METHOD FOR MEASUREMENT AND ANALYSIS OF CONTRACTILE ACTIVITY - A method and system for determining intestinal dysfunction condition are provided by classifying and analyzing image frames captured in-vivo. The method and system also relate to the detection of contractile activity in intestinal tracts, to automatic detection of video image frames taken in the gastrointestinal tract including contractile activity, and more particularly to measurement and analysis of contractile activity of the GI tract based on image intensity of in vivo image data. | 05-16-2013 |
20130188845 | DEVICE, SYSTEM AND METHOD FOR AUTOMATIC DETECTION OF CONTRACTILE ACTIVITY IN AN IMAGE FRAME - A device, system and method for automatic detection of contractile activity of a body lumen in an image frame is provided, wherein image frames during contractile activity are captured and/or image frames including contractile activity are automatically detected, such as through pattern recognition and/or feature extraction to trace image frames including contractions, e.g., with wrinkle patterns. A manual procedure of annotation of contractions, e.g. tonic contractions in capsule endoscopy, may consist of the visualization of the whole video by a specialist, and the labeling of the contraction frames. Embodiments of the present invention may be suitable for implementation in an in vivo imaging system. | 07-25-2013 |
20130243286 | CASCADE ANALYSIS FOR INTESTINAL CONTRACTION DETECTION - A method and system cascade analysis for intestinal contraction detection is provided by extracting from image frames captured in-vivo. The method and system also relate to the detection of turbid liquids in intestinal tracts, to automatic detection of video image frames taken in the gastrointestinal tract including a field of view obstructed by turbid media, and more particularly to extraction of image data obstructed by turbid media. | 09-19-2013 |
20150016700 | SYSTEM AND METHOD FOR DISPLAYING MOTILITY EVENTS IN AN IN VIVO IMAGE STREAM - A system and method may analyse and display intestinal motility events, based on an image stream captured by an in vivo imaging device. According to some embodiments, the system includes a storage unit to store image frames from the image stream, a processor to select a strip of pixels from a plurality of image frames of the image stream and to align the selected strips adjacently to form a motility events bar, and a visual display unit for displaying the motility events bar to a user. | 01-15-2015 |
Petia Radeva, Bareelona ES
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20090202117 | DEVICE, SYSTEM AND METHOD FOR MEASUREMENT AND ANALYSIS OF CONTRACTILE ACTIVITY - A method and system for determining intestinal dysfunction condition are provided by classifying and analyzing image frames captured in-vivo. The method and system also relate to the detection of contractile activity in intestinal tracts, to automatic detection of video image frames taken in the gastrointestinal tract including contractile activity, and more particularly to measurement and analysis of contractile activity of the GI tract based on image intensity of in vivo image data. | 08-13-2009 |
Petia Radeva, Sant Cugat (barcelona) ES
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20110305377 | SYSTEM AND METHOD FOR SYNCHRONIZING IMAGE SEQUENCES CAPTURED IN-VIVO FOR AUTOMATIC COMPARISON - A system and method for comparing captured sequences of in-vivo images with (e.g., template) sequences, for example, for computer-automated diagnosis. Captured in vivo images may be divided into a plurality of captured image sequences. For each of the plurality of captured sequences, the processor may assign a first and second set of scores to each frame in the captured sequence and align each frame in the captured sequence with one or more frames in the template sequence for which the comparisons therebetween generate the minimum scores in the first and second sets of scores. The processor may define a match between the template sequence and captured sequences having a combination of scores in the first and second sets of scores for the frames in the captured sets compared with the one or more aligned frames in the template sequence, which are below or above a threshold value. | 12-15-2011 |
20120057766 | SYSTEM AND METHOD FOR AUTOMATIC DETECTION OF IN VIVO CONTRACTION VIDEO SEQUENCES - A system and method for comparing captured sequences of in-vivo images with (e.g., template or model) sequences, for example, for computer-automated recognition of contractions. The size of the opening of an in-vivo lumen passageway represented in each frame in a subset of frames of an image stream captured in vivo may be measured. Frames in the subset of frames of the image stream having a local minimum size of the lumen passageway may be identified. The subset of frames may be divided into segments of sequential frames at frames having local maximum lumen sizes before and after the identified frame having a local minimum size of the lumen passageway to generate contraction sequences. A plurality of the contraction sequences may be compared to template sequences. A plurality of the contraction sequences may be displayed. | 03-08-2012 |
Petia Radeva, Sant Cugat ES
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20120130243 | SYSTEMS AND METHODS FOR DETECTING AND DISPLAYING BODY LUMEN BIFURCATIONS - A method for generating an ultrasound image includes receiving a sequence of intravascular ultrasound (IVUS) data obtained as an IVUS imager moves through a body lumen; identifying at least one bifurcation of the body lumen from the sequence of IVUS data; determining a bifurcation angle between two branches of the body lumen; and displaying a longitudinal view of the body lumen using the IVUS data and incorporating the bifurcation angle to angularly align portions of the longitudinal view corresponding to the two portions of the body lumen. | 05-24-2012 |
20120283569 | SYSTEMS AND METHODS FOR NAVIGATING AND VISUALIZING INTRAVASCULAR ULTRASOUND SEQUENCES - A method for processing a sequence of ultrasound frames for display includes receiving a sequence of ultrasound frames; characterizing a morphology of regions within a plurality of the ultrasound frames; determining a frame profile for each of the plurality of ultrasound frames; detecting a plurality of key frames from the plurality of ultrasound frames using the frame profiles of the plurality of ultrasound frames; and displaying at least one of the key frames. | 11-08-2012 |
Petia Radeva, Sofia BG
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20110250571 | NUMBER LINE TOOL AND METHOD - A computer-implemented method for teaching math is disclosed. The method comprises displaying a number line graphic to indicate a relative order between numbers; generating a first problem comprising numbers at least some of which are indicated on the number line graphic; selectively providing guidance for solving the problem; and receiving a user's input as a solution to the first problem. | 10-13-2011 |
20110250572 | TILE TOOL AND SYSTEM FOR TEACHING MATH - A computer-implemented method for teaching math is disclosed. The method comprises displaying a challenge for a learner to solve; displaying in first area a plurality of moveable pieces; displaying a second area defining a receptacle to which the learner can move the moveable pieces in attempting to solve the challenge; and evaluating the learner's response to the challenge. | 10-13-2011 |
20110250573 | PACKING WORKSPACE TOOL AND METHOD FOR MATH LEARNING - A computer-implemented method for teaching math is disclosed. The method comprises generating a number; generating movable items corresponding to the number defining a number of place values for representing the number; graphically marking place value areas corresponding to the place values; allowing a user to move the movable items into the place value areas to represent the number in terms of its place values. | 10-13-2011 |
20110250574 | PICTURE GRID TOOL AND SYSTEM FOR TEACHING MATH - A computer-implemented method for teaching math is disclosed. The method comprises generating a problem for a user to solve; generating a graphical representation of a number associated with the problem; wherein the graphical representation is selected to facilitate subitizing of the number; and overlaying visual guidance on the graphical representation to guide a user as a means to drawing attention to a learning strategy for solving the problem; receiving and checking a user's input as a solution to the problem; and indicating to the user a correctness of the solution. | 10-13-2011 |
Petia Ivanova Radeva, Barcelona ES
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20110096972 | SYSTEMS AND METHODS FOR PERFORMING AN IMAGE-BASED GATING PROCEDURE DURING AN IVUS IMAGING PROCEDURE - A method for imaging a patient using an intravascular ultrasound imaging system includes inserting a catheter into a target imaging region within patient vasculature. The catheter includes at least one transducer coupled to a control module. A plurality of image frames is generated as the at least one transducer is moved within patient vasculature. The image frames are based on data obtained from a plurality of echo signals reflected from patient tissue in response to a plurality of acoustic signals output from the at least one transducer. Each image frame includes a motion-blur component. A motion-blur-intensity estimate is quantified for each image frame to form a motion-blur-estimation signal that varies over time and that includes periodic local motion blur minima. Temporal variations of the motion-blur components are filtered to reduce variation in the motion-blur-intensity estimate arising from vessel structure variation. Image frames are selected that contain local motion blur minima. | 04-28-2011 |