336 results about "Vision inspection" patented technology

A vision inspection system and method for use with a railcar includes a vision device adapted to provide an image of each rail component. An image recognition component analyzes the images taken by the vision device to determine the type and condition of each rail component as the vehicle is traveling on the railroad track. A control system communicates with the vision device and the image recognition component. The control system causes workheads of the vehicle to engage respective rail components based on the input received from the vision inspection system. A method for determining the relative distance between the rail components includes comparing the position of the respective rail components of a first image to the position of the respective rail components of a second image to determine the distance between the respective components and distance the railcar has moved.

Systems and methods for in-process vision inspection for automated machines are disclosed. In one embodiment, a head assembly includes a tool moveable over a workpiece and adapted to perform a manufacturing operation on the workpiece, and an inspection unit operatively positioned proximate the tool and moveable with the tool relative to the workpiece. The inspection unit is adapted to perform a vision inspection of a portion of the workpiece simultaneously with the performance of the manufacturing operation on the workpiece. In a particular embodiment, the inspection unit includes a camera adapted to monitor an area including the portion of the workpiece upon which the tool has performed the manufacturing operation, and a processor operatively coupled to the camera and adapted to receive an image from the camera and to analyze the image to determine a presence of a defect within the portion of the workpiece.

The telemedicine method and system disclosed includes at least one remote exam module which in turn includes a plurality of optical devices configured to examine a patient's eye, and a controller for collecting and transmitting the examination data of the patient's eye. The information collected is transmitted via a communications link to a diagnostic center for analyzing the information collected at the remote exam module. The diagnostic center further maintains a database of patient records corresponding to the remotely collected examination information and an exam console for enabling a diagnosis based on the collected information.

A visual acuity examination is performed on a patient by bringing a confocal imaging apparatus up to a patient's eye. Stimuli at various points in the patient's field of view are generated while the patient fixates on a point. The patient's responses to the stimuli are recorded with the movement of the eye with is tracked with the aid of the confocal imaging apparatus. The position of said stimuli on the retina is corrected to take into account any movement of the eye between stimuli.

A visual inspection system for flatness of an aluminum plate, comprising a camera and a laser light source, the optical axis of the camera lens forms an angle with the movement plane of the aluminum plate transmission line, the laser light source and the camera are arranged on the same side of the movement plane of the aluminum plate transmission line, and the projection direction of the laser light source is in line with the movement plane of the aluminum plate transmission line The movement plane of the aluminum plate transmission line is at an included angle. The laser light source projects a straight line laser to the aluminum plate on the aluminum plate transmission line. The camera captures the laser projection line on the aluminum plate. According to the bending degree of the laser projection line in the camera, the height change of the aluminum plate plane is judged. The laser projects a straight line from an oblique angle on the plane of the aluminum plate, and detects the degree of curvature of each point of the line in the captured image to obtain the change in height at that point. When the entire aluminum plate is scanned once, the height fluctuation of the entire plane can be obtained. . Compared with the plane of the standard aluminum plate, the area of ​​height change can be obtained to determine whether the flatness of the aluminum plate meets the requirements of process production. According to the inspection results, a qualified or unqualified signal is given.

A course material that is applied to a substrate during fabrication of a composite item is inspected by a system that includes a vision assembly. The vision assembly includes an area light, a line generator, a sensor, and an image processor. The area light illuminates an area of the course material. The line generator generates a line of illumination across the area. The sensor captures an image of the area. The image processor analyzes the image. The image processor is configured to identify debris on the course material in response to the area light being activated and the image processor is configured to identify placement aberrations in response to the line generator being activated.

The invention discloses a visual automatic thread inspection device and a using method. The visual automatic thread inspection device comprises a vibrating disk device, a first conveying line device, a robot device, an integrated inspection platform and a second conveying line; the vibrating disk device comprises a vibrating disk and a vibrating disk bottom plate; the first conveying line device comprises a first conveying line, a limiting device, a thread workpiece, a photoelectric sensor and a photoelectric sensor mounting plate; the robot device comprises a four-degree-of-freedom robot, a first clamping cylinder and a first clamping gripper; the integrated inspection platform comprises a first linear slide rail, a second linear slide rail, a thread go/no go gauge inspection device, a thread vision inspection device and a workpiece fixing device; and the vibrating disk device is located at the input end of the first conveying device, the robot device is located between the output end of the first conveying line device and the input end of the second conveying line, and the integrated inspection platform is arranged on one side of the output end of the first conveying line device. The device can accurately detect the thread size and the appearance defect, and is high in automation degree.

The invention discloses a vision inspection device for appearance defects of rollers, and relates to the technical field of vision inspection devices. The device comprises a first conveying belt, a second conveying belt, a first image device, a first image processing system and a first inferior-quality product removing device and further comprises a rotating disc, a rotating disc driving device, roller sucking devices, a second image capturing device and a second image processing system. The first conveying belt conveys rollers to be inspected, the second conveying belt conveys qualified rollers, and the first image capturing device, the first image processing system and the first inferior-quality product removing device inspect the appearance defects of the upper sides of the rollers and remove unqualified inferior-quality products; and the rotating disc, the rotating disc driving device, the roller sucking devices, the second image capturing device and the second image processing system are used for inspecting the appearance defects of the lower sides of the rollers and remove the unqualified inferior-quality products. Vision inspection can be comprehensively carried out on the rollers in a no-dead-corner manner, and meanwhile, the unqualified inferior-quality products are removed; and automation and intelligence of the whole process are achieved, and precision and efficiency of roller inferior-quality product inspection can be improved.

A method of compensating a Mura defect of a display apparatus, which includes a display area divided into an upper area and a lower area, includes calculating a sharp grayscale correction value of a predetermined sample grayscale displayed on the display apparatus, where the sharp grayscale correction value is configured to compensate a sharp horizontal Mura between the upper and lower areas, displaying a corrected sample grayscale on the display apparatus based on the predetermined sample grayscale and the sharp grayscale correction value, sensing the corrected sample grayscale displayed on each of a plurality of sample areas defined on the display area based on a Mura type, calculating an intensity profile of the sample grayscale and a target intensity profile configured to compensate the intensity profile of the sample grayscale, calculating a grayscale correction value of the sample area using the intensity profile and the target intensity profile.

The invention discloses a polar coordinate composite camera rack for vision inspection. The polar coordinate composite camera rack includes end covers and an arc-shaped rack. The two end covers are mounted on two ends of the arc-shaped rack. The end covers are fixed on a working table. The arc-shaped rack is provided with a guide rail. A slide block is mounted in the guide rail. The slide block can slide on the arc-shaped rack along the guide rail. A support fine adjustment device is connected with the slide block fixedly. The support fine adjustable device is connected with the camera fixing support. The support fine adjustment device is used for position adjustment of the camera fixing support which is used for fixing cameras. The camera rack provided by the invention has beneficial effects that the cameras are arranged in the normal direction of the arc-shaped rack and the camera quantity can be changed and the camera positions can be adjusted freely according to detection requirements and lighting modes. The rack can be mounted and dismounted conveniently and the angle parameters facilitate measurement.

The invention provides a full-automatic visual acuity examination method and an examination device for infants; a stimulus graph can be automatically displayed, and the seeing position, direction and time of eyes of the infant can be automatically recorded and calculated; and meanwhile, a test result can be obtained upon automatic analysis. The full-automatic visual acuity examination device for the infants comprises an eyeball tracking module, a control module, a display module and a visual acuity examination instrument host, wherein the eyeball tracking module and the display module are connected to the visual acuity examination instrument host; the eyeball tracking module is used for locating the seeing position of the human eyes; the display module is used for displaying a pattern for examination; and by virtue of the control module, data communication among the visual acuity examination host, the display module and the eyeball tracking module is achieved.

The invention provides a device and method for 360-degree bottle body production line backlight vision inspection. The device comprises a front inspection station and a back inspection station which are arranged on a conveyor belt of a production line, a first set of cameras, a third set of light sources, a fourth set of cameras and a second set of light sources which are arranged on one side of the conveyor belt of the production line and a second set of cameras, a fourth set of light sources, a third set of cameras and a first set of light sources which are arranged on the other side of the conveyor belt of the production line. According to the device and method, efficient multi-angle photographing of bottle body inspection is achieved, the high-speed exposure characteristics of the industrial cameras and the plane light sources are utilized, vision imaging covering the side face of a bottle body is achieved, industrial defects, such as dirty spots, loss, flashing, deformations and uneven thickness, of the bottle body are highlighted, the two inspection stations are adopted, the space utilization rate is improved, and the structure is compact and reasonable; in addition, through the set photographing order, camera imaging is non-interfering, the device and the method are very suitable for a high-speed integrated machine vision inspection system, and therefore the purpose of efficient inspecting and selecting of the bottle body production line is achieved.

There is disclosed an inspection system that combines 2-D inspection and 3-D inspection of the components of an electronic device into one compact module. The inspection system of the present invention comprises a 2-D image acquisition assembly for inspecting 2-D criteria of the components, a 3-D image acquisition assembly for inspecting 3-D criteria of the components, and a computer for control and data analyzing. The 3-D image acquisition assembly comprises a 3-D image sensor and a 3-D light source. The 3-D light source is preferably a laser capable of generating a planar sheet of light that is substantially perpendicular to the inspection plane of the electronic device. The 2-D image acquisition assembly comprises a 2-D sensor and a 2-D light source positioned above the holder. The 2D and 3D image acquisition assemblies are arranged so that the 2D inspection and 3D inspection can be done while the electronic device is being held in one location.

The invention relates to a comprehensive vision self-service detection system based on an Internet video terminal, which belongs to the technical field of mobile health care. The system comprises a user information registration module, a screen resolution correction module, a vision icon display module, a vision detection information processing module, a vision information calling module and a user vision health archival repository. The method comprises the steps of self-evidence type near vision screening, other-evidence type near vision and distant vision detection and functional check of macula retinae, and each judgment result which is sent by users is received by an Internet cloud vision detection system. According to the comprehensive vision self-service detection system, self-service inspection based on the Internet system and intelligent determination of inspection results can be realized, so that comprehensive vision inspection is standardized, convenient and intelligent, and experience of professional medical personnel is not needed.

The invention discloses a multipurpose attaching machine for 3D glass curved screens. The multipurpose attaching machine comprises a rack, and two vacuum cavities, a vacuumizing mechanism, a glass conveying mechanism and two turning mechanisms are arranged in the rack; the vacuum cavities are used for containing Film protection films, and each vacuum cavity comprises a Film protection film positioning mechanism and a Film protection film fine tuning mechanism; the vacuumizing mechanism is used for vacuumizing the vacuum cavities; the glass conveying mechanism is used for automatically conveying 3D glass, and CCD vision inspection units matched with the Film protection film fine tuning mechanisms are arranged at the bottom of the glass conveying mechanism; the turning mechanisms are used for positioning and turning the glass, and each turning mechanism comprises a cavity cover plate, a glass positioning fixture, a pneumatic clamping mechanism and a rotating shaft; after the 3D glass is manually placed in the glass positioning fixtures in parallel to be clamped, driving mechanisms drive the 3D glass to turn along with the cavity cover plates to the position over the Film protection films to complete attaching of the glass and the Film protection films. The multipurpose attaching machine for the 3D glass curved screens has the advantages of being in precise in glass positioning and Film protection film positioning, good in cavity sealing and vacuumizing effect, high in attaching efficiency, good in attaching effect and the like.

The invention discloses a parameter calibration method of a port mobile container position system, comprising the following steps of detecting and positioning container trucks on the move at a container terminal; realizing the 3D information perception to an object via a monocular vision system by using the containers' width and length as the known gauge information and demarcating all the unknown parameters expediently, rapidly and accurately; being divided into a pre-demarcated step to perform once before the real time survey after the completion of installation of the position system and a real time demarcated step to perform once before each survey in the real time survey; starting the next survey from the real time demarcation. The invention has the advantages of convenient application without any additional requirements for container and the movement of the containers, flexible and accurate calculation of the distance from the container on the move at any height to the right parking space, being applicable to the similar vision inspection tasks, etc.

A course material that is applied to a substrate during fabrication of a composite item is inspected by a system that includes a vision assembly. The vision assembly includes an area light, a line generator, a sensor, and an image processor. The area light illuminates an area of the course material. The line generator generates a line of illumination across the area. The sensor captures an image of the area. The image processor analyzes the image. The image processor is configured to identify debris on the course material in response to the area light being activated and the image processor is configured to identify placement aberrations in response to the line generator being activated.

A method for 3-dimensional vision inspection of objects, such as microelectronic components, which have protrusions as features to be inspected, such as input/output contact balls, is disclosed. The method comprising the steps of determining interior and exterior parameters of a pair of cameras, forming a rectified coordinate system from the parameters of both cameras determined above with a relative pose of second image capturing means with respect to the first image capturing means. A pair of images of the object having a plurality of co-planar protrusions on one surface are captured by the cameras system wherein image coordinates of the images are transformed into coordinates of the rectified coordinate system. Conjugate points of each protrusion are then determined for the measurement of its co-planarity and height. Various configurations of the apparatus for capturing the images and processing the image data are also disclosed.

The invention relates to the technical field of vision inspection devices and particularly relates to a vision inspection device convenient assembly and disassembly of a tray. The vision inspection device comprises a rack, a Z-axis mechanism and a horizontal movement mechanism, wherein the Z-axis mechanism is provided with a camera; the horizontal movement mechanism is provided with a tray clamp; the tray clamp comprises a clamp body arranged on the horizontal movement mechanism; the clamp body is provided with a containing cavity; the front side edge and an adjacent edge of the front side edge of the containing cavity are respectively provided with a front pressing strip and a side pressing strip which are detachable; one side edge of the clamp body is provided with a screw hole in which a screw is installed; both the front pressing strip and the side pressing strip are provided with a through hole; the screw is in threaded connection with the screw hole after penetrating through the through hole; the screw is sleeved with a spring; one end of the spring pushes against the end part of the through hole; and the other end of the spring pushes against the head part of the screw. The vision inspection device can be used for not only assembling and disassembling an IC (integrated circuit) tray rapidly, but also calibrating the position of the IC tray conveniently, and the vision inspection device is simple in structure and strong in practicability.

An in-circuit test fixture performs both electrical tests on a Printed Circuit Assembly (“PCA”) and reads distinguishing features of a feature of interest of the PCA. The in-circuit test fixture physically supports an image sensor array. A light focusing means has a position relative to the distinguishing features and the image sensor such that a focused real image of the distinguishing features is imaged onto the image sensor. The image sensor outputs image information of the distinguishing features. A processor performs image analysis based on the image information of the distinguishing features to determine if defects exist.