58 results about "Fluoroscopic imaging" patented technology

The invention discloses an IC (integrated circuit) chip packaging detection method for realizing system-in-package and 3D (three-dimensional) packaging, which relates to the technical field of chip packaging detection, and comprises the following steps: vertically stacking a plurality of DRAM (dynamic random access memory) core particles on a basic logic core particle with a micro-bump array on the surface through silicon through holes, and activating a self-detection circuit to obtain a suspicious area coordinate list; dividing regional risk levels through a targeted scanning scheduling algorithm, and generating a differentiated scanning parameter set; for each suspicious area, controlling an external X-ray source to collect multispectral projection data according to the differential scanning parameter set; performing three-dimensional reconstruction on the multiple groups of multispectral projection data by using an enhanced reconstruction model embedded with physical priori knowledge to obtain enhanced three-dimensional body data; and performing automatic defect identification on the enhanced three-dimensional body data, and outputting the identified defect as a detection result. The invention aims to solve the problems of difficulty in perspective imaging and insufficient resolution of internal defects of the high-density 3D stacked chip.

The invention relates to the technical field of minimally invasive vascular interventional operations, in particular to an adjustable balloon expansion pressure pump and an intelligent control method thereof.The method comprises the steps that a real-time image of a connecting pipe is obtained based on perspective imaging equipment, positioning information of a marker in the connecting pipe is recognized, and an initial parameter set is generated; constructing a fluid model according to the initial parameter set, and generating a fluid parameter set by taking distance information between the first identification body and the second identification body as a constraint condition; controlling pump body output pressure according to the fluid parameter set to generate a pre-expansion parameter set; the fluid model is updated based on the pre-expansion parameter set, the pump body is controlled to execute a pressure instruction in the dynamic pressure sequence, a second change value of the distance information is obtained, and a regulation and control data set is generated according to the second change value; and optimizing the regulation and control data set, and controlling the output pressure of the pump body to a target value until the balloon is completely opened. The success rate and safety of balloon dilatation are remarkably improved, and the balloon dilatation process is more controllable and efficient.

The gas-phase welding equipment comprises a liquid storage tank, a preheating device, a heating cavity and a perspective imaging system, the liquid storage tank is used for storing gas-phase liquid, the preheating device is connected to the liquid storage tank and heats the gas-phase liquid to a first temperature, and the heating cavity is connected to the preheating device and heats the gas-phase liquid to a second temperature. The perspective imaging system is used for heating the gas-phase liquid until the gas-phase liquid is evaporated so as to heat a workpiece, the perspective imaging system comprises a ray imaging assembly, a servo driving mechanism and a digital imaging device, the ray imaging assembly is arranged above the heating cavity through the servo driving mechanism, and the ray imaging assembly can be located in the heating cavity through the servo driving mechanism to carry out horizontal moving scanning; the digital imaging device is arranged below the heating cavity and used for receiving rays of the ray imaging assembly to form a perspective image, and specific defect factors can be analyzed according to the perspective image of a workpiece welding spot, so that the specific defect factors are fed back to gas-phase welding equipment to adjust corresponding working parameters such as pressure, temperature, constant-temperature time and cooling slope.

A mobile radiographic imaging system includes a radiation generation apparatus that emits radiation and can be set to a plurality of imaging modes including a first mode for performing fluoroscopic imaging and a second mode that is a general imaging mode and acquires a series of frame images by irradiating a subject with the radiation, and a hardware processor that restricts the use of the first mode outside a management area.

The invention relates to an inter-hole electromagnetic wave perspective imaging inversion method based on a particle swarm optimization algorithm, and belongs to the field of inter-hole electromagnetic wave perspective attenuation coefficient imaging. Comprising the following steps: initializing an attenuation coefficient, a particle swarm number, a position, an individual optimal position, a group optimal position and a fitness threshold of each grid divided by a perspective stratigraphic interval; calculating the updating speed of the attenuation coefficient of each grid in each particle; calculating the terminal field intensity of each ray according to the ray tomography theory, and calculating the fitness of each current particle by combining the actually measured field intensity; comparing the fitness of each particle with the fitness calculated by the particle individual optimal position of each particle and the swarm optimal position of the particle swarm to obtain a new particle individual optimal position and a new swarm optimal position of the particle swarm; repeating the steps until the fitness meets the requirement; the attenuation coefficient of each grid obtained at the moment is the optimal attenuation coefficient. According to the method, the number of iterations can be effectively reduced, and the inversion calculation accuracy is improved.

Example systems and techniques are disclosed that may determine a three-dimensional (3D) model of a coronary vasculature of a patient. An example system may include memory configured to store the 3D model and processing circuitry communicatively coupled to the memory. The processing circuitry may be configured to obtain first fluoroscopy imaging data from a first viewing angle and obtain second fluoroscopy imaging data from a second viewing angle. The processing circuitry may be configured to determine the 3D model of the coronary vasculature of the patient based on the first fluoroscopy imaging data and the second fluoroscopy imaging data. The processing circuitry is configured to obtain additional imaging data from one or more imagers other than a fluoroscopy imager and update the 3D model based on the additional imaging data. The processing circuitry may be configured to output for display a representation of the 3D model.

The present invention discloses a vascular guidewire tracking method based on Res-Unet and a hidden Markov model, comprising the following steps: S1, training a preoperative neural network model; S2, 2D / 3D alignment; S3, construction and introduction of an HMM probability model; the tip tracking and roadmap used in the present invention can be performed continuously using fluoroscopic imaging, reducing the use of X-ray imaging and contrast agents when obtaining position information, and reducing the radiation dose received by doctors and patients; the present invention provides a 3D roadmap next to the 2D roadmap, which will provide more information for doctors with difficult cases. The present invention constructs an HMM model to track the guidewire tip, and the nature of the tracking method provides temporal consistency of the tracking results, thereby being robust to changes in the field of view, etc.

A system and method for navigation of a luminal network including receiving a computed tomography (CT) image data set, generating a three-dimensional (3D) model, displaying the 3D model in a user-interface on a display operatively connected to the computing device, and receiving an indication of a location of a tumor in the CT image data set. The system and method further including displaying the location of the tumor in the 3D model, receiving an indication of a margin around the tumor to achieve a desired therapy, generating a pathway to the tumor for navigation of a catheter, receiving a location of a sensor associated with a navigation catheter and registering the CT image data set with a luminal network of a patient, displaying the location of the sensor within the 3D model that substantially corresponds to the location of the sensor within the luminal network of the patient.

The X-ray fluoroscopic imaging device (100) comprises a photographing unit (1), an X-ray image acquiring unit (20) for acquiring an X-ray image (10), an object distribution learning and recognizing unit (21) for outputting the distribution of an object captured in the X-ray image using a learning model (7), an image quality improving processing unit (22), and a display unit (3), wherein the image quality improving processing unit is configured to be able to switch between a first image processing mode and a second image processing mode, wherein in the first image processing mode, image quality improving processing is performed on the X-ray image using a learning and recognition result (7a) of the object distribution learning and recognizing unit, and in the second image processing mode, image quality improving processing is performed on the X-ray image without using the learning and recognition result.

The invention provides an arm structure which can arrange a monitor on the side opposite to a machine base through an X-ray generator, is light in weight and does not affect the internal structure of the machine base. According to the arm structure, an upper surface guide rail is fixed to the upper surface of a base, and a back guide rail is fixed to the upper portion of the back of the base. An arm base part is clamped on the sliding guide rail, and an arm supporting column part is mounted on the arm base part. The arm part is of a structure for fixing the vertical rod to the horizontal rod. An end portion of the horizontal rod is connected to the arm strut portion. The horizontal rod is rotatable with respect to the central axis of the arm support column portion. A monitor bracket for holding a monitor is attached to the lower end of the vertical rod.

The embodiment of the invention provides an intelligent medical insurance fund dynamic supervision method and system. The intelligent medical insurance fund dynamic supervision method and system can solve the problems of data vulnerabilities and low efficiency in supervision. The method comprises the following steps: acquiring medicine identification information of a medicine corresponding to a target prescription, and searching first contour feature information corresponding to the medicine in a preset medicine information base according to the medicine identification information; a perspective imaging device is controlled to collect first particle accumulation image information of the medicine outer package in the first state; a perspective imaging device is controlled to collect second particle accumulation image information of the medicine outer package in a second state; calculating according to the first particle accumulation image information and the second particle accumulation image information to obtain second outline feature information of the medicine; and comparing the first contour feature information with the second contour feature information, and generating alarm information when the first contour feature information is not matched with the second contour feature information.

An X-ray fluoroscopic imaging apparatus includes an imaging unit, an X-ray image acquisition unit configured to acquire an X-ray image, a target distribution learning identification unit for outputting distribution of a target appearing in an X-ray image using a learning model, an image quality improvement processing unit, and a display unit. The image quality improvement processing unit is configured to switch, using a learning identification result by a target distribution learning identification unit, between a first image processing mode for performing image quality improvement processing on an X-ray image and a second image processing mode for performing image quality improvement processing on the X-ray image without using the learning identification result.

A surgical implant planning computer for intra-operative CT workflow, pre-operative CT imaging workflow, and fluoroscopic imaging workflow. A network interface is connectable to a CT image scanner and a robot surgical platform having a robot base coupled to a robot arm that is movable by motors. A CT image of a bone is received from the CT image scanner and displayed. A user's selection is received of a surgical screw from among a set of defined surgical screws. A graphical screw representing the selected surgical screw is displayed as an overlay on the CT image of the bone. Angular orientation and location of the displayed graphical screw relative to the bone in the CT image is controlled responsive to receipt of user inputs. An indication of the selected surgical screw and an angular orientation and a location of the displayed graphical screw are stored in a surgical plan data structure.

An X-ray fluoroscopic imaging device (100) comprises a control unit (6) that performs control for causing irradiation of X-rays by an X-ray irradiation unit (21) on the basis of an input operation of an operation unit (3), and performs control for generating an X-ray image. The control unit (6) is configured such that when the pixel value of a pixel included in the generated X-ray image is included in the range of a target pixel value (58), the X-ray irradiation by the X-ray irradiation unit (21) is stopped even when reception of the input operation for causing irradiation of X-rays is continued by the operation unit (3).

To display, in real time, a fluoroscopic image subjected to super-resolution processing without requiring recognition or designation of a range of a subject image.SOLUTION: An X-ray image is generated from an output of an X-ray detector, and a field-of-view region corresponding to an irradiation region within the X-ray image is determined on the basis of a position of diaphragm blades of a movable diaphragm or the X-ray image. A magnification factor for enlarging the field-of-view region to a display image having a predetermined size is calculated. When the magnification factor is greater than a predetermined value, the X-ray image of the field-of-view region is enlarged to the size of the display image at the magnification factor while being subjected to high-resolution processing by first high-resolution processing. When the magnification factor is equal to or less than the predetermined value, the X-ray image of the field-of-view region is enlarged to the size of the display image at the magnification factor while being subjected to high-resolution processing by second high-resolution processing having a shorter processing time than the first high-resolution processing.SELECTED DRAWING: Figure 2

An X-ray fluoroscopic imaging apparatus includes: a C-arm 17 that is rotatable, and supports an X-ray tube 13 and an X-ray detector 15 such that the X-ray tube 13 and the X-ray detector 15 are opposite to each other; an image generator 43 that generates X-ray images L using detection signals of the X-ray detector 15; and an image display device 11 that displays the X-ray images L. The image display device 11 includes: an image display unit 49 that can display information display images D in a row and a column in a matrix; an input unit 51 that inputs an instruction to change a position at which image information K is displayed in each of the information display images D such that at least two of the X-ray images L are displayed adjacently in the respective information display images D; and an image display control unit 57 that causes the image display unit 49 to display the X-ray images L adjacently based on a content of the instruction.

The application discloses an IC chip package detection method for realizing system-level package and 3D package, and relates to the technical field of chip package detection, and comprises the following steps: vertically stacking a plurality of DRAM core particles on a basic logic core particle provided with a micro-bump array on a surface through a through silicon via, and activating a self-detection circuit to obtain a suspicious area coordinate list; dividing area risk levels and generating a differentiated scanning parameter set through a targeted scanning scheduling algorithm; controlling an external X-ray source to collect multi-spectral projection data according to the differentiated scanning parameter set for each suspicious area; performing three-dimensional reconstruction on a plurality of sets of multi-spectral projection data by using an enhanced reconstruction model embedded with physical prior knowledge to obtain enhanced three-dimensional body data; and performing automatic defect identification on the enhanced three-dimensional body data, and outputting the identified defects as detection results. The application aims to solve the problems of perspective imaging difficulty and insufficient resolution of internal defects of high-density 3D stacked chips.

To provide a target site selection, entry and update with automatic remote image annotation.SOLUTION: Fluoroscopic imaging of a patient's heart is performed by positioning a patient in a sterile field and imaging the heart using an x-ray fluoroscopy system within the sterile field to produce a two-dimensional image. The two-dimensional image is simultaneously displayed on an operative display within or adjacent the sterile field and on a display of a remote image processor outside the operative field. The two-dimensional image of the remote display is manually marked or annotated to show anatomical or treatment information which is simultaneously shown on the operative display. Alternatively, a patient's heart is imaged using a catheter to produce a real time image. The image is presented on a screen and sent to an image processor. Treatment parameters are input to the image processor, and the image processor calculates locations of a plurality of target treatment sites which are displayed on the screen.SELECTED DRAWING: None

The invention relates to the technical field of industrial CT (Computed Tomography), in particular to a conformal track generation method for CT scanning of a flat object, which comprises the following steps of: for the flat object to be scanned, respectively carrying out perspective imaging on the main plane and the side surface of the flat object, and calculating to obtain the space size of the object; frame-selecting a to-be-scanned region of interest on a computer interface through user interaction, and calculating the spatial size of the region of interest by using an image geometrical relationship; on the basis of the space size of the object and the space size of the region of interest, generating a conformal track suitable for CT scanning through a space geometric constraint relation; the spatial geometric constraint relationship includes that the scanned object cannot collide with the radiation source and the detector, and the region of interest is always kept in the projection image in the rotation process and cannot be cut off. According to the method, the spatial sizes of the flat object and the region of interest are accurately obtained, the conformal trajectory is automatically generated through the spatial geometric constraint relation, and the scanning efficiency and the reconstruction precision are remarkably improved.

The invention relates to the technical field of vehicle-mounted electronic equipment calibration, in particular to an AR-HUD high-precision calibration method and system, a storage medium and a product, and the method comprises the steps: building a head-up display calibration environment, and installing a camera; lightening the vehicle-mounted head-up display; acquiring the position of a feature light spot in the head-up display in a vehicle coordinate system; solving a geometric perspective projection relation of the head-up display; verifying the calibration result of the vehicle-mounted head-up display; the method comprises the following steps: completing calibration of the vehicle-mounted head-up display, focusing on establishing a geometric perspective projection relationship between two-dimensional optical pixel points and three-dimensional projection imaging points under a vehicle coordinate system, establishing a multi-point perspective imaging model of the vehicle-mounted head-up display, and realizing high-precision calibration of the vehicle-mounted head-up display. The vehicle-mounted head-up display realizes a self-closed loop through a multi-point perspective imaging model, provides a conversion interface of three-dimensional points and two-dimensional optical pixel points, and shares data information with other sensors to realize combined control; and the industrial camera assists in realizing automatic calibration of the vehicle-mounted head-up display, so that the efficiency of the calibration process is improved.

An X-ray CT device of an embodiment includes processing circuitry. The processing circuitry acquires data corresponding to energy when X-rays radiated by an X-ray tube are transmitted through a subject. The processing circuitry adjusts conditions including first and second conditions for the data when the data is acquired. The processing circuitry switches the condition between the first condition and the second condition during a fluoroscopic imaging manipulation performed by radiating the X-rays to the subject. The processing circuitry bundles the data discriminated into some of a plurality of energy bins.

Imaging systems and methods estimate poses of a fluoroscopic imaging device, which may be used to reconstruct 3D volumetric data of a target area, based on a sequence of fluoroscopic images of a medical device or points, e.g., radiopaque markers, on the medical device captured by performing a fluoroscopic sweep. The systems and methods may identify and track the points along a length of the medical device appearing in the captured fluoroscopic images. The 3D coordinates of the points may be obtained, for example, from electromagnetic sensors or by performing a structure from motion method on the captured fluoroscopic images. In other aspects, a 3D shape of the catheter is determined, then the angle at which the 3D catheter projects onto the 2D catheter in each captured fluoroscopic image is found.

This fluoroscopic imaging device (100) is provided with a top plate (2), a top plate operation unit (51), and a control unit (31) configured so that, in a first control when the movement of the top plate is not prohibited, the top plate is moved on the basis of an operation input to the top plate operation unit, and, in a second control when the movement of the top plate is prohibited, the top plate is moved on the basis of an operation input to the top plate operation unit. The center (42a) of the X-ray irradiation field (42) of the X-ray image (41) in the display unit (40) is moved without moving the top plate on the basis of an operation input to the top plate operation unit.

Example systems, devices, and techniques are described for lesion characterization. An example medical system includes one or more memories configured to store one or more memories configured to store fluoroscopy imaging data of a patient and processing circuitry communicatively coupled to the memory. The processing circuitry is configured to obtain the fluoroscopy imaging data, the fluoroscopy imaging data including imaging data of one or more calibration artifacts. The processing circuitry is configured to execute one or more machine learning models to determine, based on the imaging data of the one or more calibration artifacts, a calibration factor. The processing circuitry is configured to apply the calibration factor to the fluoroscopy imaging data and output a representation of the fluoroscopy imaging data based on the application of the calibration factor to the fluoroscopy imaging data.

Systems and methods provide for identification and visualization of nerves proximate a surgical site within the brain during brain surgery. The system includes a nerve monitoring system that includes a tool suitable for insertion into the brain of a patient, response sensors suitable for mounting on the skin of the patient, a nerve monitoring control system. The system also includes a fluoroscopic imaging system used to obtain fluoroscopic images of the brain and the tool during the surgery. The nerve monitoring system is interoperable with the fluoroscopic imaging system to determine the location of the tool tip corresponding a signal from the response sensors, and present a screen element in a corresponding location in the fluoroscopic images.

An X-ray fluoroscopic imaging apparatus (100) includes a table (2), a table operation unit (51), and a controller (31). The controller is configured or programmed to move the table based on an operation input to the table operation unit in a first control performed when movement of the table is not prohibited, and move a center (42a) of an X-ray irradiation field (42) of an X-ray image (41) on a display (40) without moving the table based on the operation input to the table operation unit in a second control performed when the movement of the table is prohibited.

A mobile radiolucent table system configurable for medical imaging includes a table pedestal comprising a table base portion and a table support mounted to the table base portion; a platform supported by the table support; a frame translatably mounted to the platform and configured for positioning a patient; and an actuator configured to linearly translate the frame relative to the platform between a fully extended configuration and a fully retracted configuration, wherein in the fully extended configuration, a front edge of the frame projects from the platform at least 1 meter past a front edge of the platform and a front edge of the table base portion, wherein the fully extended configuration is configured for medical imaging.

The present application discloses a camera calibration system and method. The method is applied to electronic equipment, and the method includes: obtaining multiple target images taken by the camera during the rotation of the rotating mechanism and the position information of the rotating mechanism corresponding to each target image, superimposing the multiple target images to obtain a target composite image, determining the image coordinates of the marking point in the target composite image, and determining the world coordinates of the marking point in the virtual target; fitting the image coordinates and the world coordinates according to the perspective imaging model of the camera to obtain the focal length, principal point and initial values ​​of the distortion parameters of the camera; optimizing the focal length, principal point and initial values ​​of the distortion parameters of the camera through an algorithm to determine the imaging model parameters of the camera, and then when calibrating the camera, it is not necessary to move the target, but only to collect images during the rotation of the rotating mechanism, so as to reduce the difficulty of camera calibration and complete the fast and high-precision calibration of the camera in a smaller calibration space.

This invention relates to an artificial valve delivery device and system. The device includes a balloon catheter, a bend-controlled outer tube, and a proximal handle. The balloon catheter includes a balloon body, a first stop, and at least two alignment imaging elements. The first stop is located at the distal end of the balloon body and is used to limit the compression of the artificial valve. The alignment imaging elements are located on the first stop, and multiple alignment imaging elements are distributed circumferentially. At least some of the alignment imaging elements differ in at least one of axial length, shape, or circumferential position, for forming orientation identification features under fluoroscopic imaging. The proximal end of the balloon catheter is provided with an external marker including multiple circumferentially distributed alignment marks, which correspond to the alignment imaging elements. The bend-controlled outer tube is sleeved outside the balloon catheter and includes a bendable adjustment section. The proximal handle is connected to the proximal ends of the balloon catheter and the bend-controlled outer tube and includes a bending control mechanism and a position adjustment mechanism.