Patents by Inventor Barak ALFASSI
Barak ALFASSI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11982781Abstract: A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.Type: GrantFiled: April 10, 2023Date of Patent: May 14, 2024Assignees: ELBIT SYSTEMS CAI AND CYBER LTD, SOREQ NUCLEAR RESEARCH CENTERInventors: Aner Lev, Barak Alfassi, Alon Refael Heimer, Shai Mordechai Butzin
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Patent number: 11921254Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest.Type: GrantFiled: February 9, 2022Date of Patent: March 5, 2024Assignees: ELBIT SYSTEMS LAND AND C4I LTD., SOREQ NUCLEAR RESEARCH CENTERInventors: Aner Lev, Shai Mordechai Butzin, Barak Alfassi, Alon Refael Heimer
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Publication number: 20230314643Abstract: A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.Type: ApplicationFiled: April 10, 2023Publication date: October 5, 2023Inventors: Aner LEV, Barak ALFASSI, Alon Refael HEIMER, Shai Mordechai BUTZIN
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Patent number: 11734833Abstract: A system and method for detecting movement of an object outside a line-of-sight of a camera is disclosed. The camera acquires images of a target that is impacted by light that is scattered from the object and by ambient light, and of a reference that is impacted by the ambient light. A processing circuitry can be configured to detect the movement of the object by calculating, for each of a plurality of acquired images, a compensated light intensity value (LIV), being a target LIV that is based on pixels in the respective acquired image that represent the target, as modified, based on a reference LIV that is based on pixels in the respective acquired image that represent the reference, to reduce an effect, on the target LIV, of changes in the ambient light during a time period between acquiring a given image and the acquiring of the respective acquired image.Type: GrantFiled: February 27, 2023Date of Patent: August 22, 2023Assignee: Elbit Systems C4I and Cyber Ltd.Inventors: Alon Refael Heimer, Barak Alfassi, Ilya Leizerson, Yaron Mayerowicz
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Patent number: 11734834Abstract: A system and method for detecting movement of a non-light-of-sight (NLOS) object in a space outside a line-of-sight (LOS) of a camera is disclosed. The camera acquires a sequence of successive images that each include a set of pixels, at least a subset thereof representing a target, being at least part of a visible object located within the LOS of the camera and impacted by light scattered from the NLOS object. The set of pixels of two images of the sequence, acquired from different positions of the camera, are registered into a common coordinate system, giving rise to two registered images. A target light intensity value is calculated for both registered images based on at least part of the set of pixels representing the target in the respective registered image. Movement of the NLOS object is detected based on a variation in the target light intensity value between registered images.Type: GrantFiled: February 27, 2023Date of Patent: August 22, 2023Assignee: Elbit Systems C4I and Cyber Ltd.Inventors: Alon Refael Heimer, Barak Alfassi, Ilya Leizerson, Yaron Mayerowicz
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Publication number: 20230237674Abstract: A system and method for detecting movement of a non-light-of-sight (NLOS) object in a space outside a line-of-sight (LOS) of a camera is disclosed. The camera acquires a sequence of successive images that each include a set of pixels, at least a subset thereof representing a target, being at least part of a visible object located within the LOS of the camera and impacted by light scattered from the NLOS object. The set of pixels of two images of the sequence, acquired from different positions of the camera, are registered into a common coordinate system, giving rise to two registered images. A target light intensity value is calculated for both registered images based on at least part of the set of pixels representing the target in the respective registered image. Movement of the NLOS object is detected based on a variation in the target light intensity value between registered images.Type: ApplicationFiled: February 27, 2023Publication date: July 27, 2023Inventors: Alon Refael HEIMER, Barak ALFASSI, Ilya LEIZERSON, Yaron MAYEROWICZ
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Publication number: 20230215019Abstract: A system and method for detecting movement of an object outside a line-of-sight of a camera is disclosed. The camera acquires images of a target that is impacted by light that is scattered from the object and by ambient light, and of a reference that is impacted by the ambient light. A processing circuitry can be configured to detect the movement of the object by calculating, for each of a plurality of acquired images, a compensated light intensity value (LIV), being a target LIV that is based on pixels in the respective acquired image that represent the target, as modified, based on a reference LIV that is based on pixels in the respective acquired image that represent the reference, to reduce an effect, on the target LIV, of changes in the ambient light during a time period between acquiring a given image and the acquiring of the respective acquired image.Type: ApplicationFiled: February 27, 2023Publication date: July 6, 2023Inventors: Alon Refael HEIMER, Barak ALFASSI, Ilya LEIZERSON, Yaron MAYEROWICZ
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Patent number: 11692810Abstract: A method and a system for photoacoustic inspection of a part are provided herein. The method may include the following steps: photo-acoustically exciting a predetermined position in a predetermined region on a part by pulsed laser illumination, to yield ultrasonic excitation of the part; coherently illuminating a predetermined location in the predetermined region on the part; detecting an illumination scattered from the predetermined location; determining, based on the scattered illumination, a plurality of sequence of two or more temporally-sequential de-focused speckle pattern images, wherein each of the sequences corresponds to one of the predetermined illuminated locations; and determining a set of translations, each determined based on the sequences, wherein each translation in the set is determined based on two temporally-sequential speckle patterns images in the respective sequence.Type: GrantFiled: August 6, 2018Date of Patent: July 4, 2023Assignee: Elbit Systems Land and C4I Ltd.Inventors: Ilya Leizerson, Barak Alfassi, Alon Heimer, Sharone Aloni, Adam Wolff
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Patent number: 11523737Abstract: A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam from the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent light beam and further associated with a time-tag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.Type: GrantFiled: June 17, 2019Date of Patent: December 13, 2022Assignee: ELBIT SYSTEMS LAND AND C4I LTDInventors: Ilya Leizerson, Barak Alfassi
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Publication number: 20220342110Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest.Type: ApplicationFiled: February 9, 2022Publication date: October 27, 2022Inventors: Aner LEV, Shai Mordechai BUTZIN, Barak ALFASSI, Alon Refael HEIMER
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Publication number: 20200371018Abstract: A method and a system for photoacoustic inspection of a part are provided herein. The method may include the following steps: photo-acoustically exciting a predetermined position in a predetermined region on a part by pulsed laser illumination, to yield ultrasonic excitation of the part; coherently illuminating a predetermined location in the predetermined region on the part; detecting an illumination scattered from the predetermined location; determining, based on the scattered illumination, a plurality of sequence of two or more temporally-sequential de-focused speckle pattern images, wherein each of the sequences corresponds to one of the predetermined illuminated locations; and determining a set of translations, each determined based on the sequences, wherein each translation in the set is determined based on two temporally-sequential speckle patterns images in the respective sequence.Type: ApplicationFiled: August 6, 2018Publication date: November 26, 2020Applicant: Elbit Systems Land and C4I Ltd.Inventors: Ilya LEIZERSON, Barak ALFASSI, Alon HEIMER, Sharone ALONI, Adam WOLFF
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Publication number: 20190365233Abstract: A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam from the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent light beam and further associated with a time-tag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.Type: ApplicationFiled: June 17, 2019Publication date: December 5, 2019Inventors: Ilya LEIZERSON, Barak ALFASSI
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Patent number: 10321825Abstract: A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam from the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent light beam and further associated with a time-tag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.Type: GrantFiled: May 30, 2016Date of Patent: June 18, 2019Assignee: ELBIT SYSTEMS LAND AND C4I LTDInventors: Ilya Leizerson, Barak Alfassi
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Publication number: 20180168453Abstract: A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam from the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent light beam and further associated with a time-tag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.Type: ApplicationFiled: May 30, 2016Publication date: June 21, 2018Inventors: Ilya LEIZERSON, Barak ALFASSI