Abstract: Systems and methods for improving x-ray sources with switchable electron emitters. Improved systems may use the functionality of the switchable electron emitters in various configurations to provide power regulation, multidimensional analysis, and electron beam forming so as to increase the durability and the reliability of the system. Cooling mechanisms may be used to further protect the anode from deterioration over time.

Abstract: A system evaluates a point of gaze of a user on an object and includes at least one eye tracker camera and at least one positioning camera. The eye tracker camera and the positioning camera are arranged in fixed positions relative to each other. A light source provides corneal reflection from at least one of a user's eyes. A computer and an object is provided. Geometrical data of the object enables determination of the position of at least one screen in a first 3D coordinate system. The computer is configured to determine a gaze line of the user relative to a second 3D coordinate system; the position of the screen relative to a third 3D coordinate system; a gaze point calculated as the intersection of the gaze line with the surface of the screen in a fourth 3D coordinate system; and the location of the gaze point on the screen.

Abstract: A system evaluates a point of gaze of a user on an object and includes at least one eye tracker camera and at least one positioning camera. The eye tracker camera and the positioning camera are configured to be arranged in fixed positions relative to each other. At least one light source is configured to provide conical reflection from at least one of a user's eyes. At least one computer and at least one object is provided. The geometrical data of the object is stored in a storage device accessible to the computer. Wherein the computer is configured to determine: a gaze line of said user relative to a 3D coordinate system, the position of said at least one object relative to said 3D coordinate system, and a gaze point calculated as the intersection of said gaze line with the surface of said object in said 3D coordinate system.

Abstract: A system evaluates a point of gaze of a user on an object and includes at least one eye tracker camera and at least one positioning camera. The eye tracker camera and the positioning camera are configured to be arranged in fixed positions relative to each other. At least one light source is configured to provide conical reflection from at least one of a user's eyes. At least one computer and at least one object is provided. The geometrical data of the object is stored in a storage device accessible to the computer. Wherein the computer is configured to determine: a gaze line of said user relative to a 3D coordinate system, the position of said at least one object relative to said 3D coordinate system, and a gaze point calculated as the intersection of said gaze line with the surface of said object in said 3D coordinate system.

Abstract: A method for separating layers in an image using image processing, comprising: identifying a non-repeating pattern depicted in a captured image, the non-repeating pattern comprising a plurality of graphic elements, having a different chroma and luma; defining a transformation between an original version of the non-repeating pattern stored in a memory and the non-repeating pattern depicted in the captured image; and removing the non-repeating pattern from the captured image by using the transformation, to be replaced by a target image.

Abstract: A method for calibrating an eye tracker includes drawing the attention of a user to a calibration target. At least one positioning camera and at least one computer is employed to determine the position of the calibration target and the eye tracker coordinate system relative to each other. The calibration parameters of a gaze line are determined, to the calibration target, in a first coordinate system. The above steps are repeated, thereby providing a desired part of a gaze range and calibration targets distribution. The calibration data is then stored. A method of calibrating and using an eye tracker and a method of calibrating an eye tracker for use with a display are also provided.

Abstract: A system for evaluating a point of gaze of a user on an object, the system comprising: an eye tracker, comprising: at least one eye tracker camera associated with a first coordinate system; a light source; at least one computer; at least one positioning camera associated with a second coordinate system, the geometrical data of the object is stored in a storage device accessible to the at least one computer; wherein any combination of the at least one computer is configured to determine: a gaze line of the user relative to the first coordinate system; the position of the at least one eye tracker camera relative to the second coordinate system; the position of the object relative to the second coordinate system; and a gaze point, based on the gaze line in any coordinate system and the at least one object's position in the any coordinate system.

Abstract: A multiple frame imaging system comprising: radiation source; a detector having an input area; a monitor configured to display detected images; means for determining at least one Region of Interest (ROI) of an object on the displayed image; and a collimator comprising means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by said x-ray source, the collimator comprising at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, wherein each plate comprises a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to said first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.

Abstract: A method for separating layers in an image using image processing, comprising: identifying a non-repeating pattern depicted in a captured image, the non-repeating pattern comprising a plurality of graphic elements, having a different chroma and luma; defining a transformation between an original version of the non-repeating pattern stored in a memory and the non-repeating pattern depicted in the captured image; and removing the non-repeating pattern from the captured image by using the transformation, to be replaced by a target image.

Abstract: A method for calibrating an eye tracker includes drawing the attention of a user to a calibration target. At least one positioning camera and at least one computer is employed to determine the position of the calibration target and the eye tracker coordinate system relative to each other. The calibration parameters of a gaze line are determined, to the calibration target, in a first coordinate system. The above steps are repeated, thereby providing a desired part of a gaze range and calibration targets distribution. The calibration data is then stored. A method of calibrating and using an eye tracker and a method of calibrating an eye tracker for use with a display are also provided.

Abstract: A multiple frame imaging system comprising: radiation source; a detector having an input area; a monitor configured to display detected images; means for determining at least one Region of Interest (ROI) of an object on the displayed image; and a collimator comprising means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by said x-ray source, the collimator comprising at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, wherein each plate comprises a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to said first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.

Abstract: This invention relates to a multiple frame imaging system including radiation source, a detector having an input area, a monitor configured to display detected images, means for determining at least one Region of Interest (ROI) of an object on the displayed image, and a collimator having means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by the x-ray source. The collimator including at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, each plate includes a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to the first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.

Abstract: A system for evaluating a point of gaze of a user on an object, the system comprising: an eye tracker, comprising: at least one eye tracker camera associated with a first coordinate system; a light source; at least one computer; at least one positioning camera associated with a second coordinate system, the geometrical data of the object is stored in a storage device accessible to the at least one computer; wherein any combination of the at least one computer is configured to determine: a gaze line of the user relative to the first coordinate system; the position of the at least one eye tracker camera relative to the second coordinate system; the position of the object relative to the second coordinate system; and a gaze point, based on the gaze line in any coordinate system and the at least one object's position in the any coordinate system.

Abstract: This invention relates to a multiple frame imaging system including radiation source, a detector having an input area, a monitor configured to display detected images, means for determining at least one Region of Interest (ROI) of an object on the displayed image, and a collimator having means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by the x-ray source. The collimator including at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, each plate includes a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to the first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.

Abstract: A method serves to facilitate communication between members of an operating team in an operating room. Among others the method supports operation of different devices and expression of different command by gazing at a proper area on the monitor.

Abstract: A method serves to facilitate communication between members of an operating team in an operating room. Among others the method supports operation of different devices and expression of different command by gazing at a proper area on the monitor.

Abstract: A system that serves to facilitate communication between members of an operating team in an operating room. Among others the system supports operation of different devices and expression of different command by gazing at a proper area on the monitor.

Abstract: A system that serves to facilitate communication between members of an operating team in an operating room. Among others the system supports operation of different devices and expression of different command by gazing at a proper area on the monitor.

Abstract: A device for sensing lung sounds, comprising: a piezoelectric sensor comprising an electrical conductive plate attached to a piezoelectric material, said sensor encased in a body structure; a first electric wire connected to the piezoelectric material on the opposite side of said plate; a second electric wire connected to said plate; a connector connected to the other ends of said first and second electric wires; and an adhesive layer connected to the surface of said plate on the side opposite to the piezoelectric material, said adhesive layer facing away from said plate; said device adapted to provide electrical signals representing vibrations present on the surface of a object when it is attached to said object surface with said adhesive layer; said electrical signals resulting from vibrations on the object surface, wherein stress applied on the piezoelectric material generates electrical voltage-difference on both sides of the piezoelectric material, creating voltage build-up on said first and second elect