23 results about "Monocular" patented technology

The invention discloses an illumination adaptive image preprocessing method and system for monocular Gaussian sputtering SLAM, and belongs to the technical field of computer vision and robots. Aiming at the problem that the front end of the existing SLAM system depends on a luminosity consistency hypothesis, and positioning drift and mapping artifacts are easy to generate under intense illumination fluctuation, the method decouples a processing flow into a global dimension and a local dimension. In a CIELAB color space, smooth correction of global exposure is realized through a continuous interpolation algorithm, a multi-factor joint constraint mechanism is introduced to adaptively calculate a dynamic threshold value of local contrast enhancement, and intermediate-frequency edge information is directionally improved in combination with a Gaussian difference sharpening technology. According to the method, the robustness of the system is enhanced in an illumination abrupt change and extremely dark environment, the SLAM positioning precision is remarkably improved, the image rendering capability is improved when 3D Gaussian sputtering is used for scene reconstruction, and suspended noisy points and geometric cavities in a map are effectively eliminated.

The utility model relates to the technical field of single-tube telescopes, and discloses a portable single-tube telescope, the single-tube telescope adopts a supporting integrated structure arrangement, a protective cover structure is installed and connected by using a telescopic support arm structure, the structure is simple, the layout is compact, the structural volume is small after the single-tube telescope is stored, and the single-tube telescope is convenient to carry. The cover structure is composed of a connecting frame seat and a protective turning cover, the protective turning cover is installed on the front portion of the connecting frame seat in an overturning mode through cooperation of a rotating shaft support and a limiting clamping block limiting fixed shaft, when the device is held and used, the supporting arm does not need to be unfolded, the objective lens can be opened only through overturning, and holding use and fixed-point supporting work of the device are completed; the protective flip cover serves as a bottom support structure, fixed-point placement supporting of the telescope body can be achieved through matched supporting of the flip supporting arm and the telescopic supporting arm, the telescope body can meet different work use requirements of movable holding and fixed-point placement, and the use flexibility and the work scene applicability of the device are greatly improved.

Aspects of the invention disclose a variable-magnification monocular, comprising an objective lens group, a prism group and an eyepiece group arranged in sequence along an optical axis direction, wherein the eyepiece group comprises an eyepiece compensation group, an eyepiece variable-magnification group and an eyepiece fixing group arranged in sequence; the focal lengths of all lens groups satisfy the following conditional formula: −1.4<F31 / F32<−0.9 and 2<F33 / F32<1.7. The eyepiece magnification group and the eyepiece compensation group may move closer to or farther from each other along the optical axis to achieve continuous change of magnification between 60-20. The monocular may achieve continuous adjustment of the magnification of the monocular by moving the eyepiece zoom group and the eyepiece compensation group closer to or farther from each other along the optical axis, which can meet the needs of different observation objects.

The invention discloses a medical bed motion tracking system and method based on trinocular vision. The system adopts a non-equidistant compact three-camera layout, the left and middle base line is about 30cm, the left and right base lines are about 40cm, and all-angle dead-angle-free medical bed pose capture is realized by matching with medical spherical reflective mark points. Aiming at the shielding problem in a clinical environment, a dual anti-shielding strategy is adopted, trinocular redundancy characteristics are physically utilized, and binocular tracking is automatically switched when a monocular is shielded; a marker ball template is introduced in algorithm to match and repair damaged features. In a stereo matching link, an epipolar line and antipolar line dual verification mechanism is provided for a one-to-many mismatching problem, mismatching is eliminated through bidirectional projection consistency, uniqueness and accuracy of a matched triple are ensured, and high-precision three-dimensional reconstruction and pose tracking are further realized.

The utility model relates to the technical field of single-tube telescopes, and discloses a single-tube telescope with a magnetic attraction structure, one end of a single-tube telescope body is provided with an eyepiece, and the other end of the single-tube telescope body is provided with an objective lens; a storage assembly is arranged on one side of the single-tube telescope body and is used for accommodating accessories; a connecting assembly is arranged on one side of the storage assembly; the storage assembly comprises a box body, a box cover is hinged to one side of the top of the box body, automatic closing is achieved through attraction between the box cover and a first magnet on the top of the box body through an iron sheet, a user does not need to manually conduct complex locking operation, the first magnet and the iron sheet can be automatically attracted only by turning the box cover downwards to make contact with the box body, and the box cover can be automatically closed. Space partitioning is achieved in the box body through plug-in connection of the limiting grooves and the partition plates, and a user can flexibly adjust the positions of the partition plates according to actual requirements, so that the size and the shape of the containing cavities are changed, appropriate storage spaces are provided for different accessories, and diversified storage requirements are met.

1. Name of the product in this design: Camera (Monocular and Binocular Camera). 2. Intended use of this design: for use in vehicle-mounted or aircraft-mounted cameras. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The invention belongs to the technical field of optical system precision detection, and particularly relates to a binocular-assisted single-objective telecentric structured light system calibration and measurement method and system. The method comprises the following steps: obtaining a phase difference value and a height difference value of a reference plane based on a measurement system, fitting a mapping relation between the phase difference value and the height difference value, and realizing calibration from phases to heights of two monocular targets; and converting the phase value of the to-be-measured object into a height value and a point cloud coordinate based on the fitted mapping relation between the phase difference value and the height difference value, and realizing three-dimensional reconstruction and measurement of the to-be-measured object through point cloud splicing. According to the method, the symbol ambiguity problem of a monocular camera lens calibration method is solved, meanwhile, the precision and efficiency problems brought by a traditional projector calibration method are avoided, the phase matching link of an object is avoided, and therefore the problems of matching errors and information loss caused by phase matching under the shielding condition are effectively solved.

This invention discloses an optically optimized, non-rotating curved mirror single-lens AR-HUD optical path system. The system includes an image source, a primary mirror, a secondary mirror, and a windshield. Light rays from the image source pass through the primary mirror, secondary mirror, and windshield to create a virtual image in front of the windshield, which is observed at the virtual image viewing position represented by the eyepiece. The secondary mirror is fixedly mounted on a support bracket of the AR-HUD optical path system. The system utilizes a free-form surface design based on multiple ray tracing simulations and optimizes the surface coating using a multi-wavelength optimization method. This invention also discloses a large-size single-lens box ray path optimization method with broad application value.

The invention provides an adaptive lane line detection method and device based on a foresight monocular camera, and the method comprises the steps: carrying out the illumination adaptive preprocessing of an RGB image collected by the foresight monocular camera, and obtaining a preprocessed image with balanced illumination, so as to solve a problem that the extraction of a lane line is not stable because of the uneven illumination; inputting the preprocessed image into a lightweight hierarchical feature extraction module to obtain a multi-scale fusion feature map, and considering the real-time requirements of long-distance narrow and thin lane line detection and a low-computing-power chip; then, based on the fused feature map, lane line key point coordinates are output through a dynamic key point prediction module, and the detection precision and the frame rate are balanced; and finally, performing curve fitting on the coordinates of the key points, and outputting lane line parameters. The method can improve the backlight shadow scene detection effect and the long-distance lane line recall rate, is suitable for sharp turn scenes, and meets the requirements of an ADAS system.

The application discloses a kind of equipment and method for functional valve seal assembly quality visual inspection.It includes monocular color industrial camera, plane diffuse light source, camera light source fixing plate, two kinds of workpiece positioning devices and other accessories.Monocular color industrial camera can provide good illumination environment for monocular color industrial camera image acquisition;In addition, by being designed with two kinds of workpiece positioning devices in the application, the same equipment can simultaneously meet the inspection needs of large quantities of functional valve seals and adapt to new models of functional valve seals, realize the automatic acquisition, analysis and determination of quality information of seal rubber ring and protective ring as detection feature points, solve the problem of misloading and missing loading, greatly reduce the limitation that traditional manual inspection can only check one sleeve shaft rubber ring at a time, shorten the inspection time and retain product quality certificate function, effectively improve the detection quality and efficiency of sleeve shaft rubber ring assembly.

1. The name of the design product: camera (monocular). 2. The use of the design product: for monitoring and video recording. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a monocular geometric estimation model reasoning acceleration method, which comprises the steps of performing feature extraction on an input image to generate an initial feature map, calculating a regional complexity score of the feature map, dynamically generating a sampling interval for attention calculation according to the complexity score, and calculating a monocular geometric estimation model. And sparse sampling is carried out on the key sum value based on the sampling interval to reduce the attention calculation amount, and feature coding is completed through the transformed attention layer to output a geometric estimation result. The method has the advantages that the calculation amount is reduced through dynamic sampling, the reasoning process is accelerated, and meanwhile the estimation accuracy is kept. According to the method, reasoning acceleration of monocular geometric estimation is efficiently realized.

The invention relates to the technical field of image processing and three-dimensional computer vision, solves the technical problem of low precision caused by model noise and recognition algorithm limitation when coordinates of a mark point are directly extracted from a three-dimensional scanning model in the prior art, and particularly relates to a monocular 6DOF measurement-oriented three-dimensional mark point automatic detection and calibration method. Comprising the steps that a three-dimensional grid model of a measured target and a texture mapping file corresponding to the three-dimensional grid model are obtained, and a plurality of mark points with unique identity codes ID are arranged on the measured target; loading the three-dimensional grid model into a processing system, rendering the three-dimensional grid model through a virtual camera to obtain a projection image, and performing mark point detection to obtain an initial 3D coordinate; according to the method, high-precision geometric prior information provided by a three-dimensional scanner is fully utilized, optimization calibration is carried out through multi-view constraint of a real image, and the precision of the finally obtained mark point coordinates is remarkably higher than that of any single method.

The application provides a monocular endoscope stereo imaging system and a three-dimensional measurement method, and relates to the technical field of endoscope imaging. The monocular endoscope stereo imaging system comprises a monocular endoscope body and an optical prism body, the monocular endoscope body is internally provided with an imaging unit and a lens unit, first incident light and second incident light correspondingly form first image information and second image information on the imaging unit after being reflected by the optical prism body, the first image information and the second image information have horizontal parallax, and the first image information and the second image information after stereo correction have no vertical parallax. The monocular endoscope stereo imaging system provided by the application can realize stereo imaging based on a single camera structure, overcome the defects of the prior art, reduce the hardware size, reduce the development cost, and improve the image quality.

The application discloses a light adaptive image preprocessing method and system for monocular Gaussian sputtering SLAM, and belongs to the field of computer vision and robot technology. In view of the problem that the front end of the existing SLAM system relies on the assumption of photometric consistency, positioning drift and mapping artifacts are prone to occur under severe light fluctuation, the processing flow is decoupled into two dimensions of global and local. In the CIELAB color space, the global exposure is corrected by a continuous interpolation algorithm, a multi-factor joint constraint mechanism is introduced to adaptively calculate the dynamic threshold of local contrast enhancement, and the Gaussian difference sharpening technology is combined to directionally improve the medium frequency edge information. The method enhances the robustness of the system under light mutation and extremely dark environment, significantly improves the SLAM positioning accuracy, improves the image rendering capability when using 3D Gaussian sputtering for scene reconstruction, and effectively eliminates the suspended noise points and geometric holes in the map.

This invention discloses a panoramic 3D measurement method and system for highly reflective aerospace components based on reference objects and monocular / binocular fusion, belonging to the field of 3D measurement and machine vision technology. The method includes the following steps: constructing a multi-view measurement system composed of a projector and a camera, and rigidly fixing the aerospace component to a stereo reference object with a globally unique ID; performing multi-view scanning by changing the relative pose of the measurement system and the measured assembly, obtaining robust phase information at each viewpoint using a multi-step phase-shifting method with pixel-by-pixel saturation frame culling, and reconstructing local point clouds using a pixel-level monocular / binocular point cloud fusion algorithm; simultaneously identifying and reconstructing the 3D coordinates of feature points on the reference object, and using the Kabsch algorithm to achieve high-precision alignment between the local point cloud and the global coordinate system; further repairing point cloud noise using an adaptive optimization algorithm based on normal vector noise evaluation, and finally fusing all aligned point clouds to obtain a complete high-fidelity 3D model of the aerospace component. This invention effectively solves the problems of missing data on highly reflective surfaces and difficulty in stitching together complex geometric features, achieving fully automatic high-precision 3D measurement without spraying or manual marking, significantly improving measurement efficiency and automation level.

The disclosure provides a monocular 6D pose estimation method and system based on enhanced feature projection decoupling, relating to the technical field of robot visual perception, comprising: acquiring a monocular RGB image of a target object scene; inputting the monocular RGB image into a trained pose estimation network to obtain the 6D pose of the object; the pose estimation network extracts and fuses local features and multi-scale global features to obtain high-dimensional object enhanced feature representation; the high-dimensional object enhanced feature representation is subjected to coordinate projection decoupling to obtain the dense corresponding mapping between the three-dimensional model and the two-dimensional image of the target object and the object mask; the dense corresponding mapping and the object mask of the target object are subjected to pose regression to obtain the 6D pose of the object; the present application does not need to rely on depth information, multi-view images and multiple intermediate representations, but only needs to use monocular RGB images to accurately estimate the object pose, reduces the network design and data labeling cost and improves the robustness to complex scenes.

The invention provides a pass following detection method based on pure vision multi-view image fusion, and the method comprises the steps: obtaining a pass region image synchronously collected by a multi-view monocular RGB camera array, so as to obtain video stream data of a plurality of different views; performing geometric transformation and ground plane mapping on the video stream data of each view angle to obtain ground plane track data; performing space-time geometric consistency analysis on the ground plane track data to determine the actual number of the passing targets, and performing passing following detection according to the actual number of the passing targets; therefore, high-precision anti-trailing detection can be realized with low-cost hardware.

This invention provides a robust stereo matching method that integrates monocular semantic priors and multi-expert aggregation, relating to the fields of computer vision and stereo matching technology. It establishes a robust stereo matching framework integrating monocular semantic priors and multi-dimensional expert aggregation, including a monocular branch and a binocular branch. Stereo images are input into this robust stereo matching framework for matching calculations, including: extracting semantic prior features of the input image using the monocular branch; extracting geometrically enhanced feature maps of the stereo image using the binocular branch; generating a matching cost volume based on the geometrically enhanced feature maps; and performing refined iterative updates on the matching cost volume to obtain a disparity map after matching. This invention collaboratively supports monocular and binocular depth estimation within a unified network architecture, actively guiding and strengthening the core binocular matching process using parallel monocular depth prior pathways.

1. The name of the design product: monocular micro-pa. 2. The use of the design product: for identifying and monitoring abnormality such as foreign matter of conductor, fire, etc., automatic early warning and linkage control. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view.