29results about How to "Improve scanning accuracy" patented technology

The invention discloses a virtual restoration system for damaged cultural relics, relates to the field of virtual restoration of the damaged cultural relics, and solves the problems that the restoration effects of textures and geometric shapes of damaged areas are difficult to be completely consistent, the recognition capability for complex damage modes and disease types is weak, and the restoration effect is poor. The technical problems of difficulty in realizing sharing and cooperative processing of cultural relic data among different mechanisms and lack of digital display and propagation of models in the prior art are solved in the invention. The method comprises the following modules: a cultural relic fragment data import and export module, which is used for obtaining three-dimensional information of cultural relic fragments through a three-dimensional scanning device and then carrying out preprocessing operation; the cultural relic fragment data feature enhancement and classification module is used for extracting geometric features and texture features of cultural relic fragments by using corresponding technologies, and constructing a three-dimensional digital model after classification and splicing by combining with a machine algorithm, and the cultural relic fragment interactive splicing module is used for developing a data sharing platform by using a cloud computing technology. And constructing a virtual cultural relic restoration environment by using a virtual reality technology.

The invention discloses a high-precision line laser wind power blade contour detection and analysis system, and relates to the technical field of wind power blade contour quality inspection. According to the invention, a motion path of a line laser contour scanner on a displacement conduction mechanism is provided with a starting acceleration area, a constant-speed stable area and a stopping deceleration area. The photoelectric receiving modules on the two sides comprise CCD light sensing modules, position parameters of the photoelectric receiving modules are preset, the position information of the scanner is obtained in real time, and the power of the horizontal laser module is adjusted according to the distance between the scanner and the CCD light sensing modules. And after the scanner enters the constant-speed stable area, acquiring and analyzing starting and moving conditions of the geometric center point of the light sensing area, comparing a displacement difference with a preset reference value to judge a moving state, marking a position point if abnormity occurs, and alarming if abnormity occurs for many times. According to the method, tiny motion state changes can be more sensitively captured, and after motion state abnormity occurs, detection problems can be timely and accurately found, so that the wind power blade contour scanning precision can be further guaranteed.

This invention provides a full-foot 3D scanner, comprising a housing, a motion module, and a scanning module. The housing has two scanning areas arranged opposite each other in a first horizontal direction and a support area disposed between the two scanning areas, the support area being used to place the full foot. The motion module is disposed within the housing and includes a sliding part slidably disposed along a second horizontal direction. The scanning module includes a first frame, a second frame, lasers, and a camera. The first and second frames are respectively disposed corresponding to the two scanning areas. The first frame has at least two lasers spaced apart in the vertical direction, with the two lasers positioned on opposite sides of the support area in the vertical direction. The second frame also has at least two lasers spaced apart in the vertical direction, with the two lasers positioned on opposite sides of the support area in the vertical direction. The camera is disposed corresponding to the lasers, and both the lasers and the camera are oriented towards the support area. This solution provides a full-foot 3D scanner that balances motion accuracy, imaging quality, and structural compactness.

The invention relates to the technical field of false tooth manufacturing, and provides a false tooth digital three-dimensional scanner, a false tooth scanning method and a storage medium, the scanner comprises a data processing module, a motion control module and a false tooth placing platform; the motion control module comprises at least one motor; the data processing module comprises a structured light device and at least one camera; the data processing module is used for being connected with external electronic equipment, and the data processing module controls the structured light device and the at least one camera to work according to a control instruction issued by the external electronic equipment; the data processing module is further used for sending a motor control instruction issued by external electronic equipment to the motion control module, and the motion control module controls at least one motor according to the motor control instruction so as to enable the false tooth placing platform to move. According to the invention, a data processing function and a motion control function which are originally integrated into a whole are divided into two independent modules, so that the interference of large current on the camera and the structured light device during the operation of the motor is prevented.

The invention discloses an alpha-beta light beam scanning device, and belongs to the technical field of light beam scanning, the alpha-beta light beam scanning device comprises two supporting boxes and a connecting box fixed between the two supporting boxes, supporting sleeves are fixed on the surfaces of the two supporting boxes, lifting screw rods are rotatably connected in the supporting sleeves, and guide sleeves are in threaded connection with the outer walls of the lifting screw rods; fixing boxes are fixed to the opposite faces of the two guide sleeves correspondingly, a stepping motor is installed in one fixing box, a protective shell is fixed to the output end of the stepping motor, a scanner is installed in the protective shell, a protective cover is installed on the outer wall of the other fixing box, a linear reciprocating motor is arranged in the protective cover, and the linear reciprocating motor is arranged on the outer wall of the other fixing box. And a workbench of the linear reciprocating motor is provided with two limiting rods and an electric telescopic rod. According to the alpha-beta light beam scanning device, the reconstruction error and image distortion of a scanned image can be reduced, meanwhile, the cable can be conveniently stored, and the cable can stretch out and draw back along with rotation of the protective shell.

The utility model discloses a full -automatic digital slice scanner relates to slice scanner technical field, including frame, the front end fixedly connected with mounting seat of frame, the inboard of mounting seat is provided with light source, the upper end of mounting seat is provided with a plurality of clamping components, a plurality of clamping components's top is provided with first guide rail, first guide rail with frame fixed connection, the outside slide connection of first guide rail has riser, the utility model discloses a full -automatic digital slice scanner, through third motor drive rotating block, in through first pull rod and second pull rod synchronous drive first clamping plate and second clamping plate symmetrical sliding on guide rail block, has realized to the adaptive clamping of slice, and this kind of linkage clamping structure can not only adapt to different size slice specification, can also guarantee that clamping force is uniform and stable, avoids the image blur, the misplacement etc. of the problem that the slice loosening or deviation leads to in the scanning process, promotes scanning accuracy.

This invention discloses a multimodal barcode scanner for power equipment and its operating method, relating to the field of power inspection and management technology. It includes a scanner body and various hardware modules mounted on it, including: a multimodal scanning module comprising a photoelectric sensor module for scanning and recognizing barcodes, an image acquisition unit for capturing images of the target area, and a laser-assisted locator for generating adjustable crosshairs; a human-machine interaction module including a touchscreen and a voice module; and an embedded main control module for performing various barcode scanning operations based on user interaction information and the multimodal scanning function, generating barcode scanning results. The barcode scanning process includes dynamic area recognition and continuous multi-code scanning, barcode duplication detection and alarm, and barcode data inventory and export. This invention enables intelligent dynamic area recognition, continuous multi-code scanning, and localized data management functions.

The present invention relates to the technical field of ultrasonic diagnostic instruments, and discloses a wireless dual-plane intracavitary ultrasonic diagnostic instrument, comprising a body for a doctor to hold, the front part of the body forming an insertion section inserted into the cavity, a control panel provided in the body, and the control panel having a wireless communication element; a convex array probe and a linear array probe are provided on the front part of the insertion section, the convex array probe is arranged around the outer periphery of the insertion section, and the linear array probe is arranged along the axial extension of the insertion section; the convex array probe and the linear array probe respectively expose the outer surface of the insertion section, and the convex array probe is arranged between the front end head and the linear array probe along the axial direction of the insertion section; when the insertion section is inserted into the cavity, the convex array probe and the linear array probe can be used to perform ultrasonic scanning on the cavity, the convex array probe is arranged in a circumferential shape, and the linear array probe is arranged along the axial direction of the insertion section, so that ultrasonic scanning of multiple positions in the axial direction and the circumferential direction can be realized, and the scanning accuracy is high.

The utility model discloses a portable handheld three-dimensional modeling data scanner which comprises a handle, a rotating seat is fixedly installed on the upper surface of the top end of the handle, a rotating piece is arranged in the rotating seat, the rotating seat and the rotating piece are rotationally connected through an arbitrary stop damping rotating shaft, and a scanner is fixedly installed on the upper surface of the top end of the rotating piece. A scanning camera is fixedly installed on the outer wall of one side of the scanner, a traction rope is fixedly installed on the outer wall of one side of the handle, the tail end of the traction rope is fixedly connected with a lacing sleeve, and a lacing belt is sewn on the upper surface of one side of the lacing sleeve through a needle and a thread. The handheld scanner lens can stay at any position, the adjusting range of the scanning angle is effectively enlarged, the overall adjusting structure is simple but extremely practical, the precision problem caused by the fact that the handheld scanner lens cannot be adjusted can be effectively avoided, and the handheld scanner lens adjusting device has a good using effect.

The application discloses an IQ skew estimation method, which uses a dynamic scanning unit to estimate a skew_index value corresponding to an IQ skew value according to statistical correlation value information of I and Q data, uses a dynamic tracking unit to track and adjust the skew_index of the IQ skew value, and finally outputs a skew estimation value according to the skew_index. The application also discloses an IQ skew estimation method, which only uses a dynamic scanning unit to estimate a skew_index value corresponding to an IQ skew value, and outputs a skew estimation value according to the skew_index. The application also discloses an IQ skew estimation method, which only uses a dynamic tracking unit to estimate a skew_index value corresponding to an IQ skew value, and outputs a skew estimation value according to the skew_index. The application also discloses corresponding IQ skew estimation devices.

The utility model discloses a kind of logistics box code scanning devices of automatic control, including first conveyor belt structure and second conveyor belt structure, the first conveyor belt structure and the outer side of second conveyor belt structure are commonly provided with the code scanning room for scanning code, the outer side of the first conveyor belt structure close to import is equipped with pre-induction structure.The utility model has the advantages compared with prior art in that: without manual intervention, high degree of automation: through pre-induction structure, label position is identified in advance, induction array board tracks logistics box trajectory, cooperates the collaborative work of six face code scanner, whole process does not need manual adjustment logistics box orientation;Code scanning has no dead angle, and scanning rate is low: first code scanner covers bottom, second code scanner covers top and four sides, realizes six face code scanning without dead angle.

The application provides an optical phased array radar beam scanning technology and a waveguide preparation method, and belongs to the field of optical waveguide laser radars.The application uses a doped material as a cladding layer, changes the electrical characteristics of the material by controlling the doping type and doping concentration in the cladding layer, and makes the material into an electrode, the core layer of the optical waveguide adopts an intrinsic layer without doping, a high resistance characteristic of the intrinsic layer is utilized, a sufficient voltage is loaded on the waveguide layer, a sufficient electric field is formed, and the electric-optical effect is utilized to scan the angle of a surface plasmon incident light beam.The optical phased array radar beam scanning technology is used for the surface plasmon incident angle regulation, is beneficial to plasmon wave vector matching and accurate regulation of the incident angle, the optical phased array radar beam scanning technology and the waveguide preparation method for regulating the surface plasmon incident angle are simple, are widely applied, and have important significance for the development of microscopic, sensing and measuring fields.

The invention discloses an intelligent management and control method for installation of a box girder embedded part. The method comprises the steps that a box girder pouring mold model is established; the embedded part is matched to the installation position on the box girder pouring mold, and a model of the embedded part is arranged; extracting position information and height information of the embedded part on the embedded part; an image acquisition device is adopted to acquire installation image data of the embedded part; extracting specific position data of the embedded part on the bottom plate of the box girder pouring mold according to the installation image data, wherein the specific position data comprises actually measured position information and actually measured height information; and comparing the actually measured position information and the actually measured height information with comparison data of corresponding models in a database, judging whether requirements are met or not, and if not, performing adjustment until the requirements are met. According to the method, the installation quality of the embedded part can be judged, if the requirement is met, the embedded part is qualified, otherwise, adjustment is conducted, installation quality monitoring of the embedded part is rapidly achieved, efficiency and accuracy are improved, and time and labor are saved.

The utility model discloses a simple scanning measurement composite support, belongs to the field of testing fixture clamps, and solves the problems that a conventional testing fixture in the prior art is long in development time, high in manufacturing cost and very time-consuming in work. According to the invention, an even number of groups of measuring bracket components are arranged; all the measuring bracket components are arranged in pairs and are symmetrically arranged on the upper end surface of the base; the measuring bracket component comprises a plurality of measuring bracket groups which are arranged at intervals; the upper end face of the base is a rectangular face, and four rectangular corners of the upper end face of the base are provided with reference circular truncated cones respectively. The reference circular truncated cone adopts a concentric cylinder; and a plurality of laser marking points are arranged around the reference circular truncated cone. The simple scanning and measuring composite support is short in manufacturing period and low in cost, avoids the operation of pasting points again in each time of scanning, and improves the use efficiency.

The invention discloses a sample scanning method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a to-be-detected sample, and segmenting the to-be-detected sample to obtain at least two to-be-scanned samples with preset shapes, the preset shapes at least comprising cuboids; for each to-be-scanned sample, scanning the to-be-scanned samples on the mobile operation table at different rotation angles based on a fixed scanning device to obtain scanning images corresponding to the to-be-scanned samples; and determining the porosity of the to-be-detected sample based on each scanning image. The problems of low scanning precision and poor effect caused by a scanning mode based on a cylindrical sample in the prior art are solved, the sample scanning efficiency is improved, the scanning cost is reduced, the scanning precision and stability are improved, and the effect of improving the porosity obtaining precision is achieved.

A laser radar device used for aircraft carrying comprises a main machine shell, an aircraft connecting base is arranged on the outer side of the main machine shell, the main machine shell comprises a main machine cover body and a main machine shell body, a laser, an emergent light adjusting assembly and a scanning assembly are arranged in the main machine shell, the scanning assembly comprises a rotatable tower mirror, and the main machine cover body is provided with a transparent window mirror. The laser emits pulse laser beams, the angles of the pulse laser beams are adjusted through the emergent light adjusting assembly and then reach the scanning assembly, and the laser beams are reflected by the scanning assembly and then penetrate through the window mirror to reach the outside. The laser is reflected by a target, penetrates through the window mirror, reaches the tower mirror, is reflected to the light gathering cover and is finally gathered to the light receiving plate; an L-shaped air channel is arranged in the main machine shell, air enters from one end of the L-shaped air channel, air exits from the other end of the L-shaped air channel, and the problems that a traditional laser radar structure is high in wind resistance, heavy in weight and unsmooth in heat dissipation are solved.

The present invention provides a brightness adjustment method, system and scanning device for a projector, the method comprising: obtaining a scanned model image of an object to be measured; processing the scanned model image to determine a target area occupied by the scanned model image based on the contour of the processed scanned model image; determining a target brightness value and a target darkness value of the scanned model image based on a grayscale histogram of the target area, and adjusting the projection brightness of the projector according to the target brightness value and the target darkness value. The brightness adjustment method, system and scanning device of the present invention solve the problem of low adjustment efficiency and low adjustment accuracy caused by manually adjusting the scanning brightness in the prior art.

The application relates to the technical field of aviation equipment maintenance, and particularly discloses an aircraft wing carbon fiber skin ultrasonic automatic scanning system and method, which comprises a movable gantry frame and an industrial mechanical arm. The movable gantry frame comprises a plurality of stands and two bed bodies, the plurality of stands are respectively arranged at the bottom ends of the two bed bodies, the top portions of the two bed bodies are jointly provided with a movable cross beam, the top portion of the movable cross beam is provided with a horizontal sliding table, the top portion of the horizontal sliding table is provided with a vertical sliding saddle, the industrial mechanical arm is arranged at the bottom end of the vertical sliding saddle, the bottom end of the industrial mechanical arm is provided with a scanning probe, a limiting mechanism and a transfer trolley are arranged below the movable cross beam, and a control box is arranged below one of the bed bodies. In the application, the automatic lifting type automatic loading and unloading of the composite material wing component is realized through the automatic control technical means of the detection rack and the movable platform, the manual lifting risk is reduced, the labor intensity of the personnel is greatly reduced, and the risk of occupational diseases is reduced.

The present invention relates to the field of vehicle type measurement technology, and in particular to a vehicle type size measurement method and system for unmanned intelligent loading, the system comprising a measurement management platform, an information collection unit, an interference evaluation unit, a transportation efficiency supervision unit, a scanning analysis unit, an optimization analysis unit and a management response unit; the present invention analyzes the working interference and operation performance of a laser radar to understand the operation stability of the laser radar, which helps to improve the size measurement accuracy of the laser radar, and under the premise of the laser radar being stable, by scanning, identifying, matching, supervising and analyzing the vehicle information of the transport vehicle, on the one hand, it helps to manage the scanned transport vehicles, on the other hand, it helps to build a loading model for the unscanned transport vehicles, and helps to command the driver of the vehicle and control the material discharge when loading under the warehouse, and scans, optimizes, dynamically supervises, evaluates and analyzes the transport vehicles after loading, so as to improve the measurement accuracy of the laser radar.

Embodiments of the present disclosure relate to a method and apparatus for processing scanning, a device, and a medium. The method includes: obtaining scanning process information based on target oral cavity information, scanning a target oral cavity based on the scanning process information to obtain customized scan post data and dental and jaw data, performing calculation based on a preset position transformation matrix between a customized scan post and an adaptive scan post, as well as the customized scan post data to obtain adaptive scan post data, and stitching the dental and jaw data and the scan post data to obtain target scanning data. By adopting the above technical solution, through scanning processing on the customized scan post, the scanning accuracy can be improved. In addition, the corresponding scanning process can be selected for scanning according to scanning requirements, thereby optimizing the scanning process, reducing dependence between data, and improving work efficiency.

The utility model discloses a portable scanner which comprises a foldable table top, a cross beam and a scanner lens, the table top is detachably connected with the cross beam, the cross beam is provided with the scanner lens, the cross beam and the scanner lens can move relative to the table top, the table top is provided with a horizontal regulator, and the horizontal regulator is connected with the scanner lens. And the horizontal regulator can drive the table board to ascend or descend. According to the utility model, the table top is foldable, and the table top is detachably connected with the cross beam, so that the scanner is convenient to carry, the foldable table top can be leveled through the arrangement of the horizontal regulator, and the scanning precision of the scanner is improved.

The invention discloses an oil granularity three-dimensional monitoring system which comprises a detection tube, light sources and an image processor, the detection tube is provided with a detection cavity used for containing oil to be detected, and the light sources comprise an X-axis laser source, a Y-axis laser source and a Z-axis laser source. The Z-axis photoelectric receiver and the Z-axis laser source are correspondingly located on the two sides of the detection tube in the Z-axis direction, and lasers emitted by the X-axis laser source, the Y-axis laser source and the Z-axis laser source intersect in the detection cavity. The photoelectric converter corresponds to the X-axis photoelectric receiver, the Y-axis photoelectric receiver and the Z-axis photoelectric receiver so as to convert optical signals received by the X-axis photoelectric receiver, the Y-axis photoelectric receiver and the Z-axis photoelectric receiver into electric signals; and the image processor is electrically connected with the photoelectric receivers so as to calculate and process the electric signals. The three-dimensional monitoring system for the granularity in the oil, provided by the invention, has the advantages of accurate counting of the particles in the oil and high precision.

The utility model is suitable for the technical field of edentulous jaw implantation repair, and provides an auxiliary device for scanning in an edentulous jaw mouth, which comprises a scanning positioning rod, a screw and a scanning auxiliary piece, the screw is arranged in the scanning positioning rod in a penetrating mode, and the scanning positioning rod is fixedly connected to the jaw implant composite abutment through the screw. Two grooves are formed in the circumferential side wall of the scanning positioning rod and surround the scanning positioning rod in the circumferential direction, the scanning positioning rod is provided with a convex part, the two grooves are spaced through the convex part, and one end of the scanning auxiliary part is provided with an elastic clamping part. And the elastic clamping part can be detachably assembled in the groove in a manner of rotating around the axis of the scanning positioning rod. The scanning auxiliary part can be in contact with the adjacent scanning positioning rod after transversely rotating around the axis direction of the scanning positioning rod, so that the two adjacent scanning positioning rods can be in contact connection through the scanning auxiliary part, the clinical operability is good, and the time of doctors and patients is saved.

The utility model relates to a projection mechanism and a three-dimensional scanning device, and the projection mechanism comprises a projection assembly. The projection assembly is used for projecting a speckle pattern to a scanned object and forming a first projection area, and projecting a fringe image to the scanned object and forming a second projection area; wherein an overlapping area exists between the first projection area and the second projection area. According to the invention, the problem of low accuracy of three-dimensional scanning is solved.

The invention belongs to the field of scanning equipment, and discloses a scanning pen which comprises a shell, a first roller assembly and a second roller assembly. The first roller assembly comprises a first rotating shaft, a first support and a first roller, the first support is rotationally connected with the shell through the first rotating shaft, and the first roller is arranged on the first support; the second roller assembly comprises a second rotating shaft, a second support and a second roller, the second support is rotationally connected with the shell through the second rotating shaft, and the second roller is arranged on the second support; when the first rolling wheel and the second rolling wheel are in contact with the scanned surface at the same time and the included angle between the center line of the shell and the scanned surface is a preset angle, the first rotating shaft and the second rotating shaft are perpendicular to or approximately perpendicular to the scanned surface, and the first rotating shaft deviates from the contact point of the first rolling wheel and the scanned surface. And the second rotating shaft deviates from the contact point of the second roller and the scanned surface. The scanning track can be corrected when the scanning track is skewed, and the scanning precision is improved.

The present invention provides a global registration method and system for three-dimensional model point cloud data, the method comprising extracting point cloud data whose height is greater than the corresponding base height in the current single-frame input point cloud as point cloud data of interest; dividing the point cloud data of interest into multiple block point clouds based on a preset evaluation model, and registering the multiple block point clouds with the preset evaluation model to construct a new evaluation model; determining multiple block point clouds corresponding to the next single-frame input point cloud based on the new evaluation model; iterating the transformation matrix of the multiple block point clouds of each single-frame input point cloud, and converting the point cloud pose based on the transformation matrix formed after the iteration to output a converted point cloud set. The present invention solves the problem that registering three-dimensional point cloud data by rigid body transformation will introduce movement errors and cause a decrease in registration accuracy, or registering three-dimensional point cloud data by non-rigid body transformation will cause overall point cloud distortion, resulting in data deformation and thus low scanning accuracy.

A handheld 3D scanner and its system are disclosed, relating to the field of optical inspection technology. The handheld 3D scanner includes a support frame and a laser mounted on the support frame, the laser projecting laser light onto the object being scanned. The support frame includes a first mounting surface and a second mounting surface that are perpendicular to each other. At least two scanning cameras are evenly distributed along the extension direction of the first mounting surface, with the laser located between any two scanning cameras. The scanning cameras are used to acquire image information formed by laser light reflected from the object's surface. At least two tracking cameras are evenly distributed along the extension direction of the second mounting surface, the tracking cameras tracking reflective markers placed in the scanning environment. This handheld 3D scanner achieves high-precision and convenient measurement while maintaining a lightweight design.

The utility model discloses a line scanning camera support, which comprises a support main body, the support main body comprises a mounting rack, a mounting plate is fixed on the upper surface of the mounting rack, two clamping plates are arranged on two sides in the mounting rack, and a line scanning camera main body is clamped and fixed on the lower surface of the mounting rack through the two clamping plates; by designing the cleaning mechanism, when dust falls on the surface of a lens of the line scanning camera body, a moving table can move on the outer surface of a lead screw, the moving table moves to drive a moving plate and a cleaning sponge to move, and the moving plate and the cleaning sponge stably reciprocate; when the cleaning sponge moves to the lower surface of the line scanning camera body, the cleaning sponge deforms and tightly presses the surface of the line scanning camera body for cleaning treatment, so that a lens of the line scanning camera body can be quickly cleaned during use, clear scanning work is realized, scanning errors are not easy to generate, and the working efficiency is improved. And the cleaning convenience and the scanning accuracy of the bracket main body after the line scanning camera is mounted are improved.

The application discloses an ultrasonic robot gynecological autonomous scanning method and related devices and equipment. The method comprises the following steps: performing multi-tissue segmentation on a real-time ultrasonic image to obtain a uterine contour point set; determining a minimum left boundary included angle and a minimum right boundary included angle every time the probe moves a step; judging whether at least one of the minimum left boundary included angle and the minimum right boundary included angle is smaller than a preset included angle threshold; if yes, controlling the probe to move up and down and swing; finding a region with the longest continuous occlusion in the uterine contour point set every time the probe moves a step, determining the length of the region as a current occlusion length; judging whether the current occlusion length is greater than a preset length threshold; if yes, controlling the probe to swing according to the current occlusion length and the preset length threshold; and controlling the probe to scan left and right ovaries according to a preset path. The method can ensure that there is no occlusion in uterine tissue, effectively avoids image missed detection, and improves the quality of ultrasonic images.