115 results about "Image detector" patented technology

A dental X-ray imaging system (100) comprises: a dental X-ray imaging unit (102) having an X-ray source part (114), an X-ray imaging detector part (116) with an X-ray detector, and a gantry part (112) for the X-ray source part (114) and the X-ray imaging detector part (116); and a control system (106). The control system (106) controls the parts of the dental X-ray imaging unit (102) to acquire an X-ray scout image (302) of the patient (300) by using a first, larger part of an active area of the X-ray detector, and to acquire panoramic dental X-ray image data of the patient (300) by using a second, smaller part of the active area of the X-ray detector being respective to the panoramic imaging. A method for a panoramic dental X-ray imaging of a patient (300), a computer program (714), and a tangible non-volatile computer-readable medium are also disclosed.

An X-ray imaging device emits an X-ray to irradiate an object and includes an object moving mechanism that rotates the object; an X-ray image detector to detect a projection image of the object; an object temperature adjusting mechanism configured to change a temperature of the object; and a processing unit configured to acquire a cross-sectional image of the object by a reconstruction calculation from the projection images detected by the X-ray image detector by rotating the object. The processing unit is acquires a plurality of cross-sectional images and of the object captured at a plurality of different temperatures T1 and T2, and divides an inside of the object into regions for each of substances using a distribution of pixels of each of the cross-sectional images based on CT values obtained at the plurality of temperatures T1 and T2 at which the cross-sectional images of the object are acquired.

A projection apparatus (102) for image projection of an image on a subject (114). The apparatus (102) includes an image detector (104) having a detector field of view, where the image detector (104) is configured to detect an input image of the subject 5 (114). The processor (204) is configured to generate an output image based on the input image, where the output image includes content representing at least a portion of the content of the input image. An image projector (106) has a projector field of view, where the projector field of view overlaps the detector field of view, and where the image projector (106) is configured to project the output image on a target surface (208) 10 of the subject (114).

The application belongs to the technical field of photon imaging detection, and particularly relates to a photon counting imaging detection system based on a mixed anode. The system comprises a vacuum sealed tube detector composed of a window coated with a photocathode, a microchannel plate stack and a mixed anode, and a signal processing circuit. The photocathode is used for converting photons incident through the window into photoelectrons. The microchannel plate stack is used for converting the photoelectrons into electron clouds. The mixed anode comprises a strip anode and a delay line anode arranged orthogonally, and the mixed anode transmits the collected charge short pulses of each channel to the signal processing circuit. The signal processing circuit calculates the two-dimensional coordinates of the photons based on the collected charge short pulses of each channel, and then transmits the two-dimensional coordinates of the photons to a terminal for imaging display. The application provides a photon counting imaging detection system based on a cross strip-delay line mixed anode, and solves the problem that the existing position sensitive anode detector cannot simultaneously have high spatial resolution and high temporal resolution.

Method of operation of an image sensor comprising a medium (15) including at least one photosensitive material (19; 191) capable of generating charges (190) by photoelectric effect when the sensor is exposed to incident light, and collection electrodes (181) in contact with said medium (15) associated with pixel circuits, method in which at least one electric field including at least one lateral component is created to collect said charges (190) on at least one of said collection electrodes (181), enabling their reading by the associated pixel circuit, in which said electric field is generated by creating at least one potential difference between said collection electrode (181) and at least one other area of ​​the sensor, raised to a different potential, this other area being located between at least two collection electrodes (181).

The application provides a point target wide-area high-precision positioning method, device and equipment combined with imaging model fine and coarse calibration, relates to the technical field of optical imaging precision measurement, and aims to realize point target wide-area high-precision positioning. The method comprises the following steps: collecting point target images located at different sub-pixel positions, calibrating the PSF of a first pixel on an image detector to obtain a reference PSF model; mapping the reference PSF model to a second pixel and fitting the imaging data of the second pixel to obtain an extended PSF model; wherein the extended PSF model represents the pixel response values corresponding to different positions of the center of the image spot from the center of the pixel; and positioning the wide-area point target images collected by the image detector by using the extended PSF model and the maximum likelihood method to obtain a positioning result.

Methods, apparatus, systems and articles of manufacture are disclosed. An example apparatus includes a thermal image detector to determine a heat blob count based on a frame of thermal image data captured in the media environment, an audience image detector to identify a face of an audience member based on a frame of audience image data captured in the media environment, the frame of audience image data corresponding to a field of view associated with at least one heat blob included in the heat blob count, and a people meter controller to cause a people meter, which is to emit a prompt for audience identification information, not to emit the prompt for at least a first time period after the audience member is identified.

The utility model discloses an automatic rod coil assembling and detecting production line which comprises transfer jig conveying belts at the upper end, the lower end and the right side end, magnetic core assembling machines are arranged above the two sides of the transfer jig conveying belt on the right side, and a mechanical arm is arranged between a winding machine and the magnetic core assembling machines. The transfer jig conveying belt at the lower end penetrates through the drying furnace and then reaches the image detector on the left side; the tray placing area is arranged at the upper end of the left side, and the tray placing robot is arranged between the tray placing area and the image detector. The utility model has the advantages that the coil cannot be damaged when falling off, and the relative position of the coil and the magnetic bar cannot be changed during drying; in addition, the magnetic bar can be inserted into the coil while changing shaking, and interference between the magnetic bar and the coil is prevented; in addition, a two-time positioning method is adopted, so that the accuracy of the coil insertion position is ensured.

An agricultural machine includes a vehicle, an image detector, memory, a processing circuit, and a steering control unit. The vehicle has at least one agricultural implement affixed thereto. The image detector is mounted to the vehicle and is configured to generate first image data. The memory stores at least a first trained model of a crop row detection neural network. The processing circuit is configured to generate a crop row prediction image using the first image data, the first trained model, and a convolutional neural network. The processing circuit is further configured to generate navigational parameters based at least in part on the crop row prediction. The steering control unit is configured to control movement of vehicle based on the navigational parameters.

The application discloses a kind of self-adapting coding imaging positioning method, its steps include:1) according to the actual coding pattern of the machining form of coding board, and according to the coding pattern, the dimension number of imaging detector projection and the dimension number of expected imaging generation decoding matrix;2) the projection matrix of the imaging detector is generated, and the corresponding pixel index position of the bad pixel and the corresponding pixel of slit dead zone of imaging detector in projection matrix is obtained;3) according to pixel index position, the pixel value corresponding to the corresponding matrix element in decoding matrix is set to 0, represents that ray does not pass;When the coded pattern projection is formed on imaging detector by the modulation of the coded board after the ray bundle emitted by the ray source, the coded pattern projection is decoded and calculated using the corrected decoding matrix, and the decoding image is generated;4) the position and azimuth angle of the corresponding hotspot of the ray source are positioned from the decoding image.The application eliminates artifact, and improves positioning accuracy.

This invention relates to the field of spacecraft fire prevention technology, and discloses a fire prevention and control system and extinguishing method for hypergravity environments. The system includes: a cabin with an external accelerometer and internal smoke detectors, temperature sensors, and flame image detectors; and an extinguishing system housed within the cabin and electrically connected to a controller. The controller controls the extinguishing system to extinguish fires and / or trigger alarms based on detection data from the accelerometer, smoke detector, temperature sensor, and flame image detector. This invention couples the accelerometer to the extinguishing system, allowing the controller to control the extinguishing system based on the hypergravity multiple of the cabin, particularly adjusting the spray pressure of the air curtain nozzles and jet nozzles. This enables the extinguishing system to adapt to hypergravity environments, solving the technical problems of inaccurate initial fire detection, delayed response, and low extinguishing efficiency in hypergravity environments.

A machine tool (1) comprises a table (12) on which a workpiece is placed, a main shaft (16) on which a tool (17) is mounted, a movement mechanism (18) which moves the table (12) and the tool (17) relative to one another, and a control device (20) which controls the movement mechanism (18), said machine tool (1) including: a reference instrument (31) installed in a first portion (table (12)) of the machine tool (1), said reference instrument (31) having an optical scale disposed unidirectionally; an imaging detector (32) installed in a second portion (main shaft head (15)) which moves relative to the first portion due to the movement mechanism (18), said imaging detector (32) performing detection on an image of the reference instrument (31); and an error correction device (33) which reads the optical scale from the detection image from the imaging detector (32), measures a positional error between the first portion and the second portion, and corrects the operation of the movement mechanism (18) on the basis of the measured positional error.

The utility model discloses a thermal neutron imaging detector based on a TFT area array detector, comprising a housing, a TFT substrate and a scintillator layer, the TFT substrate and the scintillator layer are both arranged in the housing, the TFT substrate comprises a substrate layer and an optical adhesive layer, the scintillator layer is arranged on the optical adhesive layer, and the scintillator layer is arranged on the substrate layer. The optical adhesive layer is matched with the scintillator layer to optimize optical signal transmission and improve imaging resolution; according to the TFT area array detector, the optical adhesive layer is arranged on the surface of the substrate layer of the TFT area array detector, and the optical adhesive layer is combined with the scintillator layer, so that optical signal transmission is optimized, and the imaging resolution is improved.

The present disclosure provides a modular radiation therapy apparatus comprising a plurality of modules configured to sequentially interlock within one another in an annular arrangement, wherein the plurality of modules are individually extractable from the annular arrangement and at least a subset of the plurality of modules comprise computing elements configured to communicate with one another, the plurality of modules comprising a collimator module comprising a multi-leaf collimator (MLC) and at least one sensor, a linear accelerator (LINAC) module comprising at least one of a magnetron or a klystron, at least one imaging module comprising at least one of an image detector, an imaging source, a magnetic imaging system, a single photon emission computed tomography (SPECT) system, or a positron emission tomography (PET) system, a patient tracking module, a cooling module, and a vacuum module, and performing at least one of: monitoring a respective status of the plurality of modules via onboard sensors and computing elements to determine whether any module is in an error state and provisioning status information and module identifiers to a remote computing environment; or distributing computational workloads among the plurality of modules and communicating with a remote computing environment to offload processing tasks using federated processing operations.

A calibration target for use with a radiographic image detector includes a target body securable to the image detector and a plurality of radiopaque linear markers, e.g. wires, ixed to the target body, wherein access to the image detector by incident radiation is at least partially blocked by the plurality of linear markers. By using the geometric properties of wires and advanced detection techniques, a precise calibration suitable for high-quality, volumetric three-dimensional CT reconstruction from biplanar X-ray images is achieved.

A projection image adjustment method is applied to a projector device electrically connected with an external computer apparatus. The projection image adjustment method includes a projection lens of the projector device projecting a projection image which is transmitted from an image output source of the external computer apparatus towards a projection screen, an image detector of the projector device acquiring a detection image relevant to the projection image, an operation processor of the projector device analyzing the detection image to find borders and a border ratio of the projection screen, and transforming the border ratio into a control command for transmitting towards the external computer apparatus, so that the external computer apparatus adjusts an output image ratio of the image output source in accordance with the border ratio.

To provide a dental X-ray imaging system for dental X-ray imaging of a patient.SOLUTION: The system comprises a dental x-ray imaging unit comprising an x-ray source portion, an x-ray imaging detector portion comprising an x-ray detector, and a gantry portion comprising the x-ray source portion and the x-ray imaging detector portion, and a control system. The control system controls the part of the dental x-ray imaging unit to acquire an x-ray scout image by using a first part of the active area of the x-ray detector, and controls the part of the dental x-ray imaging unit to acquire panoramic dental x-ray image data by using a second part of the active area of the x-ray detector corresponding to panoramic imaging. The first portion of the active area is larger than the second portion. The invention also relates to a panoramic dental X-ray imaging method, a computer program and a computer-readable medium.SELECTED DRAWING: Figure 1

An information processing apparatus functioning as a determination apparatus of the present disclosure includes a projection controller, an imaging controller, a detector, and a determination unit. The projection controller causes a projection apparatus to project, on a projection surface, a first pattern image including a plurality of first figures arranged in a matrix. The imaging controller acquires a first captured image of the first pattern image by a camera. The detector detects a second pattern image including a plurality of second figures corresponding one-to-one to the plurality of first figures based on the first captured image. The determination unit determines whether the detection of the first pattern image failed based on the number of figures belonging to an internal pattern out of the plurality of second figures.

The present application relates to the technical field of spectral imaging detection, and particularly relates to a cross-bar anode photon counting imaging detector splicing system and a splicing method, which respectively cover ultraviolet, visible and near-infrared bands, each detector unit comprises a vacuum sealed tube composed of a glass window coated with a photocathode, a cylindrical micro-channel plate stack, a resistance anode and a cross-bar anode, and a position reading circuit, wherein the curvature radius of the cylindrical MCP stack is matched with the focal plane curvature radius of the Rowland circle spectrometer to improve the spectral resolution. Four detector units are connected in one-to-one correspondence to form a long strip electrode array in the direction perpendicular to the spectral imaging direction, and the position reading circuit is used for processing charge pulses to determine the electron cloud centroid position. The curvature radius of the cross-bar anode single-photon imaging detector unit can be matched with the curvature radius of the cylindrical focal plane of the Rowland circle spectrometer, the spectral resolution of the spectrometer is improved, and continuous imaging of a wide spectral band of 115 nm to 900 nm is realized.

The invention provides a film laminating compound machine for ink printing, and relates to the technical field of film laminating compound machines, the film laminating compound machine comprises a workbench, a hot pressing roller and a film laminating cylinder are arranged on the workbench, a plastic film coiled material is detachably mounted on the film laminating cylinder, a conveying table is arranged on the workbench, two electric push rods are arranged on the conveying table, and the telescopic ends of the two electric push rods are jointly connected with a moving frame; a fixed frame is arranged on the conveying table, the movable frame is in through sliding connection with the fixed frame, an adhesive tape and an image detector are arranged on the movable frame, the image detector is electrically connected with an electric push rod, a guide frame is arranged on the working table, a conveying frame controlled to rotate is arranged on the working table, and the conveying frame is driven to rotate through mechanical linkage of the electric push rod, the movable frame and the conveying frame. By combining the detection functions of the adhesive tape and the image detector, real-time judgment of the ink drying state and automatic switching of the conveying path are achieved, the quality defects of bubbles, image-text blurring and the like caused by the fact that wet ink printed matter enters the film covering procedure are effectively avoided, and the automation degree of the equipment is remarkably improved.

A robot assembly for safe operation in a manufacturing setting with humans including a sensor for detecting movement of the robot assembly and a human location. A positional apparatus including at least one tag located on the robot apparatus and at least one detector for detecting the tag. Posture nodes associated with a human saved in memory. A method that includes, generating a task movement plan based on images captured by the sensors, tags detected by the detector, and posture nodes of a nearby human captured by the sensor.

The invention discloses a customized intelligent drug release monitoring trigeminal nerve block microneedle system, and relates to the technical field of medical equipment. Comprising a radiography mechanism, and the radiography mechanism comprises a workbench, a C-shaped arm, an X-ray bulb tube and an image detector; the head limiting assembly is used for fixing the head of a patient, the positioning assembly is arranged on the head limiting assembly, the positioning assembly comprises an arc-shaped support and a positioning plate used for positioning an oval hole, the positioning plate can be adjusted around the arc-shaped support, a plurality of needle holes are formed in the positioning plate, and the central axis of any needle hole can coincide with the central axis of the oval hole; when the foramen ovale is positioned, a metal probe is inserted into the needle hole, and after positioning is completed, a microneedle for conveying blocking medicine is inserted through the needle hole. According to the microneedle system for customized intelligent drug release monitoring of trigeminal nerve block, after the head of a patient is fixed, the radiography mechanism is matched with the positioning assembly to obtain the position of the foramen foramen ovale, and the accuracy and safety of blocking drug delivery are improved.

The utility model discloses a bucket type blast hole backfilling device, which relates to the technical field of blast hole backfilling devices, and comprises a working table, a revolving platform, a control frame, an image detector and a bucket mechanism, the revolving platform is rotatably arranged above the working table, and the surface of the revolving platform is fixedly connected with the bottom of the control frame; one side of the control frame extends to form an image detector, and a bucket mechanism is installed below the image detector. When the bucket type blast hole backfilling equipment works, dust can be identified through the image detector, the dust is positioned and sent to the control mechanism through the sensor, and the position and the angle of the bucket mechanism can be flexibly adjusted according to the distribution condition of the dust; according to the bucket mechanism, accumulated dust is loaded through the arrangement of the rotating platform and the hydraulic oil cylinders, transferring and transporting of materials are achieved, the dust transferring efficiency is greatly improved, blast holes can be backfilled rapidly and effectively, and the construction period can be shortened.

The invention discloses a remote sensing image relative radiation calibration method and system based on quantiles, and relates to the technical field of remote sensing image processing, and the method comprises the steps: collecting satellite historical image data, and separating the data according to a spectral band; performing incremental sorting on pixel values of each column of the single-band image detector, and uniformly extracting quantile values to generate a quantile feature sequence of each column; calculating an arithmetic mean value of all columns under the same quantile level, and constructing global reference quantile distribution; constructing a linear mapping relation between each column quantile sequence and reference distribution based on a least square method, and obtaining radiation correction gain and bias coefficient of each detector column; correcting the original image column by column by using the coefficient; according to the method, vertical strip noise caused by non-consistency of sensor response is effectively eliminated, the limitation that traditional calibration is limited by meteorological conditions and platform maneuvering is overcome, and high-frequency and high-precision calibration timeliness and image radiation quality are remarkably improved.

The present disclosure provides a wireless scanning device, including a scanning housing, including an image detector configured for acquiring 2D-images at a first 2D-frame-rate; and one or more processor(s) coupled to the image detector such that the 2D-images can be processed by the processor(s) to form processed data; a wireless module being coupled to the processor(s) such that the wireless module receives the processed data from the processor(s) and wirelessly transmits the processed data.

An inspecting tool for inspecting a micro LED array panel (00) comprises: an optical collector group (01) configured to collect light emitted from a micro LED array included in the micro LED array panel (00): an image detector (02) connected with the optical collector group (01) to receive the light collected by the optical collector group (01) and to capture an image of the micro LED array: and. a light measuring device (03) electrically connected with the optical collector group (01) to receive the light collected by the optical collector group (01) and to measure the light emitted from one or more portions of the micro LED array. The optical collector group (01) comprises a first optical collector (101) connected with the image detector (02) and a second optical collector (102) electrically connected with the light measuring device (03); the first optical collector (101) and the second optical collector (102) are configured on a fixture element (104); and, the fixture element (104) is rotatable at any direction. This inspecting tool can increase the image accuracy.

A projector control method with an environment adaptive function is applied to a projector device and includes driving a projection lens to project a projection image onto a projection curtain, utilizing an image detector to acquire a detection image relevant to the projection image, driving a size detector to acquire a size of the detection image on the projection curtain, driving an ambient light sensor to acquire an ambient light intensity, and acquiring a control parameter combination in accordance with the size of the detection image, the ambient light intensity and an image intensity of the detection image to adjust an intensity, color temperature or color of the projection image.

The invention relates to a source image distance adjusting method and device and a storage medium, the source image distance adjusting method is applied to a radioactive ray imaging system, the radioactive ray imaging system comprises an image detector, a ray source and a rack, and the method comprises the steps that distance information between the image detector and a target object is acquired; determining a real-time deviation value based on the distance information; and generating a source image distance dynamic adjustment result based on the real-time deviation value, and controlling the rack to drive the image detector and / or the radiation source to move according to the source image distance dynamic adjustment result. According to the invention, the problem of poor radioactive imaging quality is solved.

This invention relates to the field of muon detection, providing a downhole muon imaging detector and detection method, comprising: a stainless steel shell, a signal processing circuit board, an inner vertical structural module, and an outer horizontal structural module; the stainless steel shell, the inner vertical structural module, and the outer horizontal structural module are all cylindrical, the signal processing circuit board is disposed inside the inner vertical structural module, the stainless steel shell fits and encloses the outer horizontal structural module, and the outer horizontal structural module fits and encloses the inner vertical structural module. The detector of this invention can be placed in a confined space at the bottom of a borehole and can image a large area of ​​geological structure around the borehole. The detection method of this invention can effectively acquire incident and emitted signals through event discrimination, thereby constructing an accurate two-dimensional density image, simplifying the overall computational workload of detection, and improving the detection efficiency of muons.

The application discloses a kind of infrared image non-uniformity real-time correction method and system, the method includes: according to the current frame image gray statistical value and the previous frame image gray statistical value output by imaging system, using the function relationship of motion angular velocity and image motion threshold value determined offline to obtain the motion angular velocity of infrared imaging system;According to the motion angular velocity of infrared imaging system, the weight of the correction parameter update calculation required for the current frame image correction is obtained, and the adaptive correction parameter update step factor is obtained according to the motion angular velocity of infrared imaging system;According to the weight of the correction parameter update calculation required for the current frame image correction and adaptive correction parameter update step factor, the correction parameter of next frame image is obtained;According to the correction parameter of next frame image, the correction of row by row and pixel by pixel of the frame image is carried out.The application solves the non-uniformity problem of short-wave infrared image detector, and ensures the real-time performance of infrared image correction algorithm.