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252 results about "Orthographic projection" patented technology

Orthographic projection (sometimes referred to as orthogonal projection) is a means of representing three-dimensional objects in two dimensions. It is a form of parallel projection, in which all the projection lines are orthogonal to the projection plane, resulting in every plane of the scene appearing in affine transformation on the viewing surface. The obverse of an orthographic projection is an oblique projection, which is a parallel projection in which the projection lines are not orthogonal to the projection plane.

Omnidirectional ceiling antenna and electronic device

The present disclosure provides an omnidirectional ceiling antenna and an electronic device, and belongs to the technical field of communication. The omnidirectional ceiling antenna comprises a reflecting plate and a radiation structure arranged on the reflecting plate; the plane where the reflecting layer and the radiation structure are located has a certain included angle; the radiation structure comprises a first dielectric substrate and a radiation component arranged on the first dielectric substrate, and the radiation component comprises a radiation part; wherein the radiation part has at least one first slot part, and the orthographic projection of the first slot part on the first dielectric substrate is in a spiral shape; and / or the radiation component further comprises at least one first stub arranged on the first dielectric substrate and coupled with the radiation part.
Owner:BEIJING BOE TECH DEV CO LTD +1

Optical substrates and display devices

An optical substrate and a display device are disclosed, relating to the field of display technology. The optical substrate includes multiple optical rotation regions and a first light-shielding region. The first light-shielding region is located between at least two adjacent optical rotation regions. The two adjacent optical rotation regions include a first optical rotation region and a second optical rotation region. The first optical rotation region is used to convert linearly polarized light with a predetermined polarization state in incident light into left-handed polarized light, and the second optical rotation region is used to convert linearly polarized light with a predetermined polarization state in incident light into right-handed polarized light. The optical substrate includes a substrate, and multiple touch electrodes and multiple touch traces disposed on one side of the substrate. The multiple touch electrodes are separated from each other and are not connected. Each touch electrode is connected to a touch trace in a one-to-one correspondence. The touch electrodes are used to detect the touch position of a touch object on the optical substrate. Furthermore, in the orthographic projection onto the substrate, the touch electrodes overlap with the optical rotation regions, and the touch traces are located within the range of the first light-shielding region.
Owner:BEIJING BOE DISPLAY TECH CO LTD +1

A fully automatic multi-style handle splitting device

This utility model provides a fully automatic multi-style handle cutting device, including a frame, a worktable, a first baffle, a second baffle, a cutting component, a feeding cylinder, and a discharging cylinder. The worktable and cutting component are mounted on the frame. The first and second baffles are arranged parallel to each other on the worktable, forming a first feeding channel between them. The cutting component is located at one end of the first feeding channel, and the discharging cylinder and feeding cylinder are located at the other end of the first feeding channel. The feeding cylinder and discharging cylinder are mounted on the worktable. The central axis of the feeding cylinder is parallel to the center line of the first feeding channel, and the central axis of the discharging cylinder is perpendicular to the central axis of the feeding cylinder in the orthographic projection direction. Compared with other handle cutting methods, this device has high working efficiency, can meet the needs of large-scale production, and significantly improves operational safety. It also improves processing accuracy, enhances the stability of the handle's forward movement, and can meet various handle cutting requirements.
Owner:殷德刚

Display substrate, manufacturing method thereof and display device

The present disclosure provides a display substrate and a manufacturing method thereof, and a display device, and belongs to the technical field of display. The display substrate comprises a substrate, a light emitting unit and a photoelectric sensing unit on the substrate, the photoelectric sensing unit is used to generate an electrical signal according to the light emitted by the light emitting unit, and transmit the electrical signal to an identification circuit, the identification circuit is used to connect a fingerprint identification chip, and transmit the received electrical signal to the fingerprint identification chip; a lens unit on the side of the photoelectric sensing unit away from the substrate, the lens unit corresponds to the photoelectric sensing unit one by one, the lens unit comprises a convex surface protruding towards the side away from the substrate, the orthographic projection of the lens unit on the substrate overlaps the orthographic projection of the photoelectric sensing unit on the substrate, and the refractive index of the lens unit is greater than the refractive index of the first film layer. The present disclosure can improve the fingerprint identification accuracy.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Phase shifter, feed network and phased array system

PendingCN122338382ATelecommunicationsInductor
This disclosure provides a phase shifter, a feed network, and a phased array system. The phase shifter includes multiple phase shifting units cascaded between an input and an output. Each phase shifting unit includes a cascaded first phase shifting unit and a second phase shifting unit. The first phase shifting unit includes a first inductor, and the second phase shifting unit includes a second inductor. Both the first and second inductors are disposed on a substrate. The orthographic projection of the first inductor onto the substrate includes interconnected first and second winding portions, which are arranged along a first direction with opposite current winding directions. The orthographic projection of the second inductor onto the substrate at least partially overlaps with the first winding portion in a second direction, and the second direction is perpendicular to the first direction. This disclosure can reduce the coupling between the first and second inductors, which is beneficial for reducing the layout area of ​​the phase shifter.
Owner:BEIJING LINGTONG SEMICONDUCTOR CO LTD

Overlay alignment marks and methods of using the same

PendingCN122284229AWaferMechanical engineering
This invention provides an overlay alignment mark and its application method. The mark includes a first mark and a second mark. The first mark includes an outer frame pattern and a central pattern. The outer frame pattern comprises multiple symmetrically distributed outer frame stripes, and the central pattern is located within the central area enclosed by these stripes. The second mark includes an inner frame pattern; the orthographic projection of the inner frame pattern onto the wafer surface lies within the orthographic projection area of ​​the central pattern. This invention, through the overlapping design of the central pattern and the inner frame pattern, utilizes the central pattern to adjust the local etching load or as an etching stop layer during the etching process. This effectively prevents etching from penetrating the underlying dielectric layer and exposing sensitive materials underneath, avoiding the risk of cross-contamination from the etching equipment, while ensuring the normal measurement of overlay errors.
Owner:HUA HONG SEMICON WUXI LTD

Optical security element

PendingCN122275477AEngineeringOptical security
This invention relates to the field of optical anti-counterfeiting technology and discloses an optical anti-counterfeiting element, including at least one focusing unit. The focusing unit includes a substrate, a focusing element, and an image layer. The substrate includes a first surface and a second surface disposed opposite to each other; the focusing element is disposed on the second surface; the image layer is disposed on the first surface. The central portion of the focusing unit, when projected onto the image layer, forms a first region, and the remaining portion of the focusing unit, when projected onto the image layer, forms a second region. The second region is disposed around the first region. On the image layer, the area outside the projection range of the focusing unit onto the image layer is a third region, which is disposed around the second region. The first region is provided with micro-graphic strokes, and the second and third regions are also provided with supplementary graphic strokes. The sum of the areas of the micro-graphic strokes and supplementary graphic strokes within a focusing unit is a preset area value, reducing the unevenness of the background color of the optical anti-counterfeiting element.
Owner:ZHONGCHAO SPECIAL SECURITY TECH +1

Display panel and display device

This application discloses a display panel and display device, belonging to the field of display technology. By setting the orthographic projections of the first touch trace portion and the second touch trace portion of the same touch trace in the first area within the visible area on the substrate to be at least partially staggered, at least a portion of the orthographic projection of each second touch trace portion in the first area within the visible area on the first touch layer is located in the gap between two adjacent first touch trace portions. This allows light emitted through the gap between two adjacent first touch trace portions in the first touch layer within the visible area to be reflected by at least a portion of the second touch trace portion above it, thereby reducing the amount of light emitted through the first area within the visible area. This avoids uneven brightness in the visible area due to the different densities of multiple touch traces in different areas of the first area within the visible area, thus improving the display quality of the display panel.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD

Display substrate and display device

PendingCN122319757ADisplay deviceAperture ratio
A display substrate and a display device are disclosed. The display substrate includes a substrate and a plurality of sub-pixels. The plurality of sub-pixels are divided into a plurality of sub-pixel groups, each sub-pixel group including a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The plurality of sub-pixel groups include a first sub-pixel group, a second sub-pixel group, and a third sub-pixel group. The light-emitting functional layer of the third color sub-pixel in the first sub-pixel group and the second sub-pixel group, when projected onto the substrate, includes a first side and a second side, respectively. The four endpoints of the first side and the second side enclose a spacing region. The light-emitting functional layer of at least one of the two first color sub-pixels and the two second color sub-pixels in the first sub-pixel group and the second sub-pixel group is located in the spacing region when projected onto the substrate. Thus, the spacing region can be effectively utilized to increase the aperture ratio of the sub-pixels and the overall aperture ratio of the sub-pixel group to which they belong.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Display panel, preparation method thereof and display device

This disclosure provides a display panel and its fabrication method, and a display device. The display panel includes: a substrate; a plurality of pixel electrodes located on one side of the substrate; a pixel definition layer disposed on one side of the substrate and located between the plurality of pixel electrodes, the pixel definition layer defining a pixel opening region; and a conductive structure layer located on the side of the pixel definition layer away from the substrate; wherein the pixel definition layer includes a protrusion structure, the protrusion structure being located in a section of the pixel definition layer away from the substrate and protruding laterally; there is an overlap between the orthographic projection of the protrusion structure on the substrate and the orthographic projection of the pixel electrode on the substrate, and at the overlap region of the protrusion structure and the pixel electrode, a groove is formed on the surface of the pixel electrode, the opening direction of the groove being substantially consistent with the protrusion direction of the protrusion structure.
Owner:BOE TECHNOLOGY GROUP CO LTD

Wafer alignment device and wafer alignment system

PendingCN122458823AWaferMechanical engineering
The application relates to the technical field of semiconductor manufacturing equipment, and discloses a wafer alignment device and a wafer alignment system. The wafer alignment device comprises a base, an upper wafer module and a lower wafer module which are installed on a first surface of the base. The upper wafer module comprises an upper wafer carrier disc for carrying an upper wafer. The lower wafer module comprises a fixed seat installed on the base, a movable seat installed on the fixed seat and a lower wafer carrier disc installed on the movable seat, and the lower wafer carrier disc is used for carrying a lower wafer. A pulling device is arranged between the movable seat and the fixed seat, so that the movable seat can slide along a first direction between a first position and a second position relative to the fixed seat, and the first direction is parallel to the first surface. In the first position, the orthographic projection of the lower wafer carrier disc along a second direction is located in the first surface, and the second direction is perpendicular to the first surface. In the second position, the orthographic projection of the lower wafer carrier disc along the second direction at least partially exceeds the first surface. The wafer alignment device can realize intensive layout and is convenient to maintain.
Owner:YINGUAN SEMICON TECH CO LTD

Display panel and display device

This application provides a display panel and a display device, relating to the field of display technology. The display panel includes a substrate, an isolation structure, a plurality of light-emitting units, and a first encapsulation layer. The isolation structure is disposed on one side of the substrate along its thickness direction and defines a plurality of isolation openings. The light-emitting units are disposed on one side of the substrate along its thickness direction, and are located on the side where the isolation structure is located, with each light-emitting unit disposed in a corresponding isolation opening. The first encapsulation layer is located on the side of the light-emitting units away from the substrate, and includes a plurality of encapsulation portions. The orthographic projection of each light-emitting unit on the substrate lies within the orthographic projection of the corresponding encapsulation portion on the substrate. A first direction and a second direction are parallel to the substrate, and the first direction is perpendicular to the second direction. Along the first direction, the orthographic projections of every two adjacent encapsulation portions on the substrate overlap. The display panel provided by this application can improve the performance of the display device.
Owner:HEFEI VISIONOX TECH CO LTD +2

Method for manufacturing a cavity structure

PendingCN122276662APhotoresistPhysics
This application relates to a method for fabricating a cavity structure. The method includes: providing a substrate; forming a trench on the substrate; forming a peelable filling layer within the trench, with the surface of the filling layer flush with the surface of the substrate; forming a first film layer with an opening on the substrate; wherein the orthographic projection of the trench onto the substrate is outside the orthographic projection of the opening onto the substrate; and removing the filling layer to obtain the cavity structure. The fabrication method provided in this application eliminates the need for expensive dry film photoresist and the purchase of related equipment, reducing production costs. Furthermore, the process is relatively simple, which helps to improve yield.
Owner:CSMC TECH FAB2 CO LTD

Methods of embroidering different patterns on the front and back of a fabric

This invention discloses a method for embroidering different patterns on the front and back sides of a fabric, comprising: Step 1: determining a first area on side A of the base fabric and a second area on side B of the base fabric; Step 2: weaving a first pattern in the first area; Step 3: embroidering a second pattern in the second area; wherein, when embroidering the second pattern, the portion of the thread passing through side A falls within the orthographic projection of the first pattern onto the base fabric, and the portion of the thread passing through side A is located between the base fabric and the first pattern. This invention employs a continuous warp and discontinuous weft method to first weave the first pattern on side A, making each color block within the first pattern independent, thus improving the display effect of the first pattern. Then, the second pattern is embroidered on side B. By concealing the portion of the thread passing through side A between the first pattern and the base fabric, the thread is prevented from being seen from side A, ensuring that only the first pattern is displayed on side A and only the second pattern on side B, thus improving the double-sided display effect.
Owner:SUZHOU MIWEI CULTURE & ART CO LTD

Housing components and electronic devices

ActiveCN224289838UImprove scratch resistanceImprove scratch effectTelephone set constructionsOptical ModuleProtection layer
This application provides a housing assembly and an electronic device. The housing assembly includes a housing body, at least partially comprising a light-transmitting area. This light-transmitting area overlaps at least with the orthographic projection of an optical module of the electronic device in the direction of the mid-frame. The optical module includes an emitting optical module and / or an incident optical module. The light-transmitting area allows light emitted by the emitting optical module to pass through, and / or allows light to pass through the housing body and be received by the incident optical module. The light-transmitting area includes a first surface disposed opposite to the electronic device body and a second surface disposed adjacent to the electronic device body. A protective layer is disposed on the first surface, corresponding at least to the optical module, and the Mohs hardness of the protective layer is greater than that of the housing body. Therefore, the housing body of the housing assembly adopts a transparent design, and by providing a protective layer on the outer surface of the light-transmitting area corresponding to the optical module, the problem of easy scratching and abrasion on the housing body is solved.
Owner:纳欣科技有限公司

The fuselage of the drone and the drone

This disclosure relates to a fuselage shell of a drone and the drone itself. The fuselage shell includes a housing for enclosing a space for accommodating internal components of the drone. The housing includes a bottom wall and a front end wall, a transition wall, and a main body wall sequentially disposed on the bottom wall from front to back along the drone's longitudinal direction. The orthographic projection area of ​​the front end wall along the longitudinal direction is a first projection area. The orthographic projection area of ​​the area enclosed by a first connecting line at the junction of the transition wall and the main body wall and the bottom wall along the longitudinal direction is a second projection area. The first projection area is completely located within the second projection area. The transition wall is a continuous, smooth curved surface extending rearward from the front end wall. This technical solution optimizes the shape of the housing, making it more rounded, suitable for guiding airflow during flight, reducing fuselage drag, and increasing the drone's range.
Owner:MEITUAN TECH CO LTD

1. Vertical beam of a shelf; 2. Horizontal beam of a shelf; 3. Horizontal beam of a storage rack

Design 1 is a vertical beam of a shelf; Figs. 1.1 to 1.7 show six orthographic projection views and a perspective view of Design 1; Reference view 1.8 shows Design 1 in a status of use and forms no part of the claimed design.Design 2 is a horizontal beam of a shelf; Figs. 2.1 to 2.7 show six orthographic projection views and a perspective view of Design 2; Reference view 2.8 shows Design 2 in a status of use and forms no part of the claimed design.Design 3 is a horizontal beam of a storage rack; Figs. 3.1 to 3.8 show six orthographic projection views, one sectional view, and one perspective view of Design 3; Reference view 3.9 shows Design 3 in a status of use and forms no part of the claimed design.The products are made of metal; The double curved lines shown in the reproductions indicate the indeterminate length of the designs.
Owner:SHANGHAI NUOZEQING INTELLIGENT TECHNOLOGY CO LTD

Display panel and its manufacturing method, display device

This application relates to a display panel, its manufacturing method, and a display device. The display panel includes: a substrate; the substrate, an isolation structure, and a plurality of light-emitting elements. Each light-emitting element includes a first electrode, a light-emitting layer group, and a second electrode stacked along a direction away from the substrate. The light-emitting layer group includes a first material layer and a second material layer stacked along a direction away from the substrate. The orthographic projection of the first material layer onto the substrate is a first orthographic projection; the orthographic projection of the second material layer onto the substrate is a second orthographic projection; the orthographic projection of the first conductive portion onto the substrate is a third orthographic projection; the distance between the edge of the first orthographic projection near the isolation structure and the edge of the third orthographic projection near the isolation opening is a first dimension; and the distance between the edge of the second orthographic projection near the isolation structure and the edge of the third orthographic projection near the isolation opening is a second dimension. The first dimension is larger than the second dimension. This solution can improve the yield rate of the display panel.
Owner:合肥维信诺电子有限公司 +2

Display substrate and display device

PCT designated stageWO2026124380A1Computer hardwareDisplay device
A display substrate and a display device. The display substrate comprises: a base, and a plurality of sub-pixels (20) disposed on the base; a plurality of data lines (Data), which are located in an active area (AA), electrically connected to the plurality of sub-pixels (20) and configured to transmit data signals to the plurality of sub-pixels (20); a multiplexing circuit (10), which is at least partially located in the active area (AA) and is connected to the plurality of data lines (Data); a plurality of data output lines (SL), which are at least located in a non-active area (BB) and are connected to the multiplexing circuit (10), the number of the plurality of data output lines (SL) being less than the number of the plurality of data lines (Data); and a shielding structure (30), which is at least partially located in the active area (AA), the orthographic projection of the shielding structure (30) on the base at least partially overlapping with the orthographic projection of a light-emitting device of at least one of the sub-pixels on the base and at least partially overlapping with the orthographic projection of the multiplexing circuit (10) on the base.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

A type of seat foam and seat

ActiveCN117048468BMeet design needsavoid damageThigh restsDual effectClassical mechanics
This application provides a seat foam and a seat. The seat foam includes a foam A-side, which is the side of the foam closest to the occupant. A functional area is disposed on the foam A-side, and the functional area has at least one transition surface, which is a small plane with an angle A greater than or equal to 90 degrees to the foam A-side. A preset area is used to configure a sheet-like occupant sensing device, and the preset area is the orthographic projection area of ​​the sheet-like occupant sensing device on the foam A-side. A stress concentration area is a stress radiation area that overlaps with the functional area and the preset area. A stress relief part is a cut located in the stress concentration area, at the junction of the foam A-side and the transition surface outside the preset area, for stress relief. This solution uses a cut to release stress in the stress concentration area, which not only ensures the flatness of the seat when sitting, but also releases stress protection elements in a timely manner, achieving the dual effect of meeting both seat design requirements and user experience requirements.
Owner:GUANGDONG ANWEN AUTO PARTS CO LTD

Display panel and display device

A display panel includes a display area and a border area surrounding the display area. The display panel includes: a substrate; a plurality of edge sub-pixels (1) located on the substrate, the plurality of edge sub-pixels (1) being located at the edge of the display area and close to the border area, the edge sub-pixels (1) including an anode pattern (10); a first initialization signal bus (3) located on the substrate, at least a portion of the first initialization signal bus (3) being located in the display area; wherein the orthographic projection of the anode pattern (10) on the substrate and the orthographic projection of the first initialization signal bus (3) on the substrate have a first overlapping area.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Display panel and display device

PendingCN122094348AImprove the display effectMeet distance requirementsComputer graphics (images)Display device
This invention provides a display panel and a display device. The display panel includes a substrate, a pixel defining layer, an isolation structure, and a touch layer. The pixel defining layer is disposed on one side of the substrate and includes pixel defining portions and a plurality of pixel openings formed by the pixel defining portions. The isolation structure is disposed on the side of the pixel defining layer opposite to the substrate. The touch layer is disposed on the side of the isolation structure opposite to the substrate, and the touch layer includes a plurality of touch traces. The orthographic projection of the touch traces on the substrate is located within the orthographic projection range of the pixel defining portions on the substrate. In the same direction parallel to the plane of the substrate, at least one side of a portion of the pixel openings has a first spacing with an adjacent touch trace, and the other side of the pixel openings has a second spacing with an adjacent touch trace. The difference between the first spacing and the second spacing is 0-2 micrometers, thereby solving the problem of color misalignment in the display panel.
Owner:HEFEI VISIONOX TECH CO LTD +1

Display panel and display device

PendingCN122121494ADisplay deviceEngineering
The application relates to a display panel and a display device. The display panel comprises a first substrate and a display layer. The first substrate comprises buffer structures arranged in an array, and the display layer comprises display islands arranged in an array. Each display island corresponds to at least one buffer structure. The orthographic projection of the display island on the first substrate at least partially overlaps the orthographic projection of the corresponding buffer structure on the first substrate. The application adds buffer structures between the display island and the first substrate, which can effectively absorb and relieve the stress and strain generated by the shear motion of the first substrate and the display island. By reducing the transmission of stress and strain to the display island, the damage of stress and strain to each film layer in the display island is reduced, and the display performance of the display device is improved.
Owner:BOE TECHNOLOGY GROUP CO LTD

Display panel and liquid crystal molecule alignment method

The application provides an array substrate, a display panel and a liquid crystal molecule alignment method. The array substrate comprises a first substrate, a plurality of data lines, a pixel electrode layer, a first transparent common electrode line and a second transparent common electrode line arranged on the first substrate. The plurality of data lines extend along a first direction and are arranged at intervals along a second direction, and the first direction intersects the second direction. The pixel electrode layer comprises a plurality of pixel electrodes. The first transparent common electrode line and the second transparent common electrode line both extend along the first direction and are arranged to be insulated from the pixel electrode layer, and the second transparent common electrode line is arranged to be disconnected from the first transparent common electrode line. The orthographic projection of the gap between a first transparent common electrode line and a second transparent common electrode line adjacent in the second direction on the first substrate overlaps the orthographic projection of at least one pixel electrode on the first substrate.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

A hybrid transmission line 3dB coupler and a design method thereof

This invention discloses a hybrid transmission line 3dB coupler and its design method, comprising a first conductor layer, a first dielectric layer, a second conductor layer, a second dielectric layer, and a third conductor layer stacked sequentially. A first coupling line is disposed within the first conductor layer, a second coupling line is disposed within the second conductor layer, and a reference ground plane is disposed within the third conductor layer. The first and second coupling lines share the reference ground plane as their reference ground. Perpendicular to the stacking direction, the projections of the first and second coupling lines overlap, and the orthographic projection of the second coupling line completely falls within the orthographic projection of the first coupling line. This invention employs a shared reference ground and a full projection coverage structure, ensuring that the area of ​​the coupling lines facing each other is largely unaffected by PCB layer alignment errors, improving the consistency of mass production performance, while simplifying the stacking structure and reducing costs.
Owner:王家勇

Target projectile and vehicle

ActiveCN120008424BReduce roll backlashThe flight attitude is fully controllableMovable targetsProjectilesFlight vehicleClassical mechanics
The application provides a target projectile and an aircraft. The target projectile comprises a head part in a conical shape, a projectile body comprising at least one engine body section, a first engine body section close to the head part being connected to the head part, a tail part arranged at an end of the engine body section away from the head part and comprising at least two tail wings distributed around an axis of the engine body section, and a rudder part arranged at an end of the first engine body section close to the head part and comprising at least two rudder wings distributed around an axis of the first engine body section, wherein in a first plane perpendicular to the axis of the engine body section, the orthographic projection of the at least two rudder wings is staggered with the orthographic projection of the at least two tail wings. The application realizes controllable supersonic flight of the target projectile in a large airspace and a wide speed range, with a flight height of 0.1-20 km and a flight speed of 0.3-2.4 Ma.
Owner:SICHUAN GALAXY POWER SPACE TECH CO LTD +3

Dxf three-dimensional reconstruction method based on scan line clustering and multi-layer topological measurement

The DXF 3D reconstruction method based on scanline clustering and multi-layer topology calculation includes the following steps: S1: Obtain the target engineering drawing, extract the 2D point set from the preset target layer and preprocess it to obtain the preprocessed 2D point set; S2: Use scanline gap analysis and density clustering algorithm to automatically identify and segment the 2D point set into multiple view point sets corresponding to different projection directions; S3: According to the orthographic projection rules, convert the multiple view point sets into a 3D spatial point cloud, and standardize the 3D spatial point cloud through spatial range calibration to obtain a standardized input point set; S4: Construct a preliminary topology connectivity calculation model based on multi-layer spatial traversal and distance threshold filtering; S5: Use the standardized input point set to perform geometric feature matching and vector cross product verification on the preliminary topology connectivity calculation model to generate triangular patch topology data and output a 3D model file. This invention has the advantages of good versatility, high robustness, high lightweightness, and easy deployment.
Owner:HUNAN UNIV