2304 results about "Orthographic projection" patented technology

The invention relates to a true orthophoto generation method based on a three-dimensional Gaussian model, a storage medium and equipment, and aims to solve the problems of low image quality, low generation speed, detail loss and the like in the prior art. The method comprises the following steps: firstly, acquiring image data through an unmanned aerial vehicle or aerial photography, and extracting a camera attitude and sparse point cloud by using a motion recovery structure (SfM) technology; secondly, constructing a three-dimensional Gaussian model based on the sparse point cloud, and performing iterative training through top view orthographic projection in combination with a gradient descent algorithm; in the training process, a densification strategy, a point deleting strategy, a blocking strategy and an image pyramid strategy are innovatively introduced, so that the detail expressive force and the overall quality of the image are remarkably improved. Specifically, according to the densification strategy, fine detail reconstruction is achieved by dynamically increasing Gaussian ball density, and according to the point deletion strategy, rendering efficiency is improved and computing resource allocation is optimized by eliminating redundant Gaussian balls. The image pyramid strategy generates a multi-level visual effect through multi-scale training, and the blocking strategy improves the reconstruction precision through local optimization. Finally, on the basis of the trained three-dimensional Gaussian model, real-time generation of a high-quality true orthophoto in a large-scale scene can be realized. The method has remarkable advantages in the aspects of efficiency, precision and practicability, provides important technical support for the fields of geographic information systems, urban planning, disaster monitoring and the like, and has wide application prospects.

An electronic device includes: a projector; a camera; one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the electronic device to: control the projector to display a projected image on a screen, wherein the screen includes surfaces; control the camera to obtain a captured image including the surfaces and the projected image; identify, based on the captured image, shapes of the surfaces and areas of the projected image projected onto the surfaces; and correct the projected image, based on the shapes of the surfaces and the areas of the projected image, by transforming the projected image into one from among a three-dimensional image and a flat image.

An image reconstruction method and system based on a sparse graph set. The method comprises the following steps: using CT scanning to obtain a sparse angle projection graph set; performing back projection on the sparse angle projection graph set to obtain an initial iteration value of volume data; calculating initial values of three directional gradient fields of the initial iteration value of the volume data; on the basis of the initial iteration value of the volume data and the initial values of the three gradient fields, respectively calculating orthographic projection and residual back projection; performing, by means of a neural network and by using the initial values of the three gradient fields, regularization processing on data having undergone orthographic projection and data having undergone residual back projection; performing addition on an integral of the volume data and the gradient fields to serve as an initial value of next iteration, iterating again until completion and outputting a result. The method can obtain projection data required by reconstruction in a short period of time, and can effectively process the sparse angle / finite angle problem to obtain a high-quality image reconstruction result.

The invention relates to the technical field of projectors, in particular to an intelligent picture geometric distortion control method based on machine vision and an image projector, and the method comprises the steps: obtaining image data of a to-be-corrected projection picture, and carrying out the feature analysis of the image data, so as to obtain a distortion feature value; matching a correction optimization model corresponding to the distortion characteristic value, so as to call a correction parameter from a preset correction parameter library through the correction optimization model; simulating a correction process corresponding to the projection picture to be corrected according to the correction parameter; the correction parameters are adjusted according to the correction process, and the projection picture to be corrected is corrected according to the adjusted correction parameters, the corresponding correction optimization model is matched based on the characteristic values, the adaptive correction parameters can be dynamically called from the preset parameter library, the limitation of a traditional fixed algorithm is changed, and the correction efficiency is improved. The correction strategy is highly coupled with the actual distortion scene, and the correction efficiency and pertinence are remarkably improved.

The invention discloses a display substrate, a manufacturing method thereof and a display device. The display substrate comprises a plurality of first electrodes (31) and a plurality of pixel definition structures (32), the first electrodes (31) and the pixel definition structures (32) are arranged on a substrate (10), and the pixel definition structures (32) are arranged between the adjacent first electrodes (31) and form pixel openings (35) exposing the first electrodes (31); the pixel defining structure (32) at least comprises a first insulating layer (101), a second insulating layer (102), a third insulating layer (103) and a fourth insulating layer (104). The orthographic projection of the second insulating layer (102) on the substrate is at least partially overlapped with the orthographic projection of the first electrode (31) on the substrate; the surface of the second insulating layer (102) is provided with a second recess (106), and the inner wall of the side, close to the substrate, of the second recess (106) is located between the surface of the side, away from the substrate, of the first electrode (31) and the surface of the side, close to the substrate, of the first electrode (31).

The invention relates to the technical field of robots, in particular to a dexterous hand finger, a dexterous hand and a robot, and aims to solve the problem that the size of the dexterous hand finger with three active degrees of freedom is large. According to the dexterous hand finger, the first knuckle can have the functions of laterally swinging and rotating towards the palm side or the hand back side through the first linear driving assembly and the second linear driving assembly which are connected in parallel, and the knuckle assembly has the function of rotating towards the palm side or the hand back side through the third linear driving assembly. Due to the fact that the third straight line can be parallel to the palm base plate, on the plane perpendicular to the second axis, the distance between the orthographic projection of the third straight line and the orthographic projection of the first straight line in the extending direction of the first axis is gradually reduced in the direction from the third straight line to the first knuckle. The circumferential size of the end, away from the knuckle assembly, of the first knuckle is small, and the space occupied by the three linear driving assemblies in the palm is close to the shape of the palm of a person.

The three-axis Hall magnetic sensing chip comprises a magnet gathering body, a first Hall element group and a second Hall element group, the first Hall element group and the second Hall element group are arranged in a plane at intervals, the magnet gathering body is arranged on Hall elements, and the orthographic projection of the magnet gathering body on a Hall plane has a first direction symmetry axis and a second direction symmetry axis which are orthogonal. The first Hall element group comprises two first Hall elements which are connected in a contrast difference mode, wherein the magnetic induction centers of the two first Hall elements are located on a first-direction symmetric axis and are symmetrically arranged relative to a second-direction symmetric axis. The second Hall element group comprises two second Hall elements which are located on the same side of the first direction symmetry axis and are symmetrically arranged relative to the second direction symmetry axis, and the magnetic induction centers of the two second Hall elements are perpendicular to the connecting line between the orthogonal intersection points of the first direction symmetry axis and the second direction symmetry axis; the magnetism gathering body is located on one side of the connecting line of the two magnetic induction centers. According to the invention, a high inter-axis signal rejection ratio is realized, and the Z-axis signal can be directly output.

Provided in the present disclosure are a display panel and a manufacturing method therefor. The display panel is provided with a display area and a non-display area, and comprises a substrate and, located on the substrate, an encapsulation structure, a protective layer and a plurality of light-emitting devices; the light-emitting devices are located in the display area; the encapsulation structure is located on the side of the light-emitting devices away from the substrate, and comprises a first encapsulation layer and a second encapsulation layer located on the side of the first encapsulation layer facing away from the substrate, the first encapsulation layer and the second encapsulation layer covering the light-emitting devices, and the orthographic projection of the second encapsulation layer on the substrate being located in the display area and the non-display area; at least part of the protective layer is located in the non-display area and located on the side of the second encapsulation layer close to the substrate; in the non-display area, the protective layer is in direct contact with the second encapsulation layer, the material types of the protective layer and the second encapsulation layer being the same as each other. During the preparation process of the first encapsulation layer, the protective layer can protect structures beneath so as to avoid damage to the substrate or structures between the substrate and the protective layer, thus ensuring the quality of the display panel.

The invention discloses a display panel and a display device, the display panel comprises an array substrate, the array substrate comprises a substrate, a first conductive layer, an insulating layer and a second conductive layer, the first conductive layer comprises a first signal line and a second signal line which extend along a first direction, the second conductive layer comprises a third signal line and a fourth signal line which extend in the second direction, and the third signal line and the fourth signal line transmit the same signal; in the direction perpendicular to the substrate, the first signal line and the third signal line have a first overlapping area and are electrically connected in the first overlapping area, the second signal line and the fourth signal line have a fourth overlapping area and are electrically connected in the fourth overlapping area, and the first signal line and the fourth signal line have a second overlapping area and are insulated. The second signal line and the third signal line have a third overlapping area and are insulated. The orthographic projection of the second overlapping area and the orthographic projection of the third overlapping area on the substrate are at least partially located in the orthographic projection of the pixel opening on the substrate. The display panel provided by the invention can improve the color cast of the display panel.

Provided is a display substrate, including: a substrate; a first electrode layer, a pixel defining layer, a first film layer group, and a second film layer group, which are disposed on the base substrate along a direction away from the base substrate. The first film layer group includes a first portion and a second portion, where an orthographic projection of the first portion on the base substrate at least partially overlaps with an orthographic projection of the first electrode layer, an orthographic projection of the second portion on the base substrate at least partially overlaps with an orthographic projection of the pixel defining layer on the base substrate, and the first portion and the second portion are interrupted. The second film layer group includes a first portion and a second portion, which extend continuously.

A display substrate has a display region. The display region includes at least a first region, and the first region includes a plurality of first sub-pixel regions. The display substrate includes: a substrate; a plurality of first sub-pixels disposed on a side of the substrate; and a pattern layer disposed on a side of the plurality of first sub-pixels away from the substrate. The pattern layer includes a first pattern and a plurality of second patterns. Boundaries of orthographic projections of part of the second patterns located in the first region on the substrate respectively coincide with boundaries of the first sub-pixel regions; or boundaries of the first sub-pixel regions are respectively located within boundaries of orthographic projections of part of the second patterns located in the first region on the substrate. A portion of the first pattern located in the first region is electrically connected to the first cathode.

The embodiment of the invention provides an array substrate and a display panel. The array substrate includes: a plurality of first active patterns; a plurality of first metal lines; a plurality of conductive parts; the conductive part comprises a first conductive part and a second conductive part which are distributed along the first direction; wherein the adjacent first metal wires on the two sides of the conductive part comprise first sub-metal wires and second sub-metal wires; wherein the first sub metal wire is electrically connected with the second part; the first part is electrically connected with the first electrode through the conductive part; at least the distance between the orthographic projection of the second conductive part on the substrate and the orthographic projection of the first sub-metal wire on the substrate is larger than the distance between the orthographic projection of the second conductive part on the substrate and the orthographic projection of the second sub-metal wire on the substrate.

A display substrate and a manufacturing method therefor, and a display device. The display substrate comprises a plurality of first electrodes (31) and a plurality of pixel definition structures (32) which are arranged on a base substrate (10), wherein each pixel definition structure (32) is arranged between adjacent first electrodes (31), and forms a pixel opening (35) exposing the first electrodes (31); and each pixel definition structure (32) comprises at least a first insulating layer (101), a second insulating layer (102), a third insulating layer (103) and a fourth insulating layer (104). The orthographic projection of the second insulating layer (102) on the base substrate (10) at least partially overlaps the orthographic projection of the first electrode (31) on the base substrate (10); second recesses (106) are provided in the surface of the second insulating layer (102); and an inner wall on the side of each second recess (106) close to the base substrate (10) is located between the surface on the side of the first electrode (31) away from the base substrate (10) and the surface on the side of the first electrode (31) close to the base substrate (10).

The embodiment of the invention provides a display device, a fingerprint identification method thereof and electronic equipment, and relates to the technical field of display. The display device comprises a display panel, a friction assembly and an optical fingerprint element, the friction assembly is located on the light emitting side of the display panel, the optical fingerprint element is located on the backlight side of the display panel, and the orthographic projection of the friction assembly on the display panel is located in the orthographic projection of the optical fingerprint element on the display panel. According to the display device, the authenticity of the finger is judged by arranging the friction assembly, and the matching degree of the fingerprint is judged by combining the optical fingerprint element, so that the anti-counterfeiting capability and the use safety of the display device are improved. Furthermore, the orthographic projection of the friction assembly on the display panel is located in the orthographic projection of the optical fingerprint element on the display panel, so that the misjudgment of the display device on the combination of the true fingerprint of the real finger and the false fingerprint of the false finger is avoided, and the anti-counterfeiting capability of the display device and the use safety of the display device are further improved.

The utility model discloses a spinneret assembly, which comprises a distribution plate and a spinneret plate provided with spinneret orifices, the distribution plate comprises a first runner used for simultaneously introducing a first component and a second component into the spinneret orifices, and a second runner used for introducing a third component into the spinneret orifices; the number of the first flow channels and the number of the second flow channels are respectively multiple, every two adjacent first flow channels are separated by one second flow channel, the multiple second flow channels are mutually separated or the axial leads of the second flow channels are mutually intersected at the same point, and the orthographic projection of the first flow channels and the orthographic projection of the second flow channels are all located in the orthographic projection range of inlets of the spinneret orifices; the spinneret assembly can continuously and stably eject composite fibers with normal sizes and specific structures on the basis of three components, and superfine fibers with at least one excellent effect in the aspects of elasticity, glossiness, strength such as tearing strength and the like can be obtained by removing single-component fibers in the composite fibers.

A display panel is provided. The display panel includes a plurality of subpixels, a plurality of antenna units, a color filter and a black matrix. The color filter includes a plurality of color filter blocks. An orthographic projection of a respective color filter block of the plurality of color filter blocks on a first base substrate at least partially overlaps with an orthographic projection of a third electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a fourth electrode on the first base substrate. An orthographic projection of the black matrix on the first base substrate at least partially overlaps with an orthographic projection of a first electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a second electrode on the first base substrate.

The present application provides a communication terminal. The communication terminal comprises a radio frequency chip, a first main radiator, a second main radiator, and a feed structure. The first main radiator, the second main radiator, and the feed structure are pairwise parallel and spaced apart, and the orthographic projection of the first main radiator on a first plane and the orthographic projection of the second main radiator on the first plane at least partially overlap, so that the first main radiator and the second main radiator form an antenna of a parallel structure. The first plane is perpendicular to the arrangement direction of the first main radiator and the second main radiator. The feed structure is used for coupling and feeding the first main radiator and the second main radiator separately. The feed structure simultaneously feeds the first main radiator and the second main radiator, thereby improving the radiation efficiency of the first main radiator and the second main radiator in the antenna system, enhancing the communication effect of the antenna system, and improving the communication capability of the communication terminal.

A display substrate and a display device. The display substrate comprises sub-pixels, pixel defining patterns, and defining structures. The sub-pixels each comprise a light-emitting functional layer; the pixel defining patterns each comprise openings and pixel defining portions surrounding the openings, and at least part of each light-emitting functional layer is isolated in at least one opening; and the defining structures are located between the pixel defining portions and a base substrate. The defining structures each are located between two corresponding adjacent sub-pixels of different colors; the defining structures each comprise a first portion covered by the corresponding pixel defining portion and a second portion exposed out of the corresponding opening; the second portions of the defining structures are configured to isolate the light-emitting functional layers; and the defining structures are made of an organic material, and the orthographic projection of the edge of the side surface of each second portion distant from one side of the base substrate on the base substrate falls within the orthographic projection of the corresponding opening on the base substrate, such that the corresponding light-emitting functional layer is isolated to reduce crosstalk, thereby minimizing the effect of the defining structures on the process and productivity while guaranteeing the electrode flatness and normal light-emitting effects of the sub-pixels.

Provided are a display substrate and a method of manufacturing the same, and a display device. The display substrate includes: a base substrate; a planarization layer; a pixel defining layer including a first pixel defining layer and a second pixel defining layer; a first electrode. A vertical spacing between the first surface of first pixel defining layer and the first surface of base substrate is less than a vertical spacing between the first surface of second pixel defining layer and the first surface of base substrate. The first surface of the first pixel defining layer has a first region and second region. An orthographic projection of the electrode via hole on the base substrate is located within an orthographic projection of the second region on the base substrate. A maximum vertical spacing between the second region and the first region is less than or equal to a thickness of the first pixel defining layer in the first region.

A display panel and a manufacturing method therefor, and a display apparatus. The display panel comprises a base substrate, a pixel define layer located on the base substrate, and a light-emitting functional layer located on the side of the pixel define layer away from the base substrate. The pixel define layer comprises a defining portion for defining a pixel opening. The light-emitting functional layer comprises carrier layers, wherein the carrier layers are consecutive and cover the pixel define layer. Each carrier layer comprises a first area and a second area except the first area, wherein the orthographic projection of the first area on a first surface of the base substrate is located in the orthographic projection of the defining portion on the first surface of the base substrate, and the carrier mobility of the first area is smaller than the carrier mobility of the second area. The present application can prevent a crosstalk current from being formed between adjacent sub-pixels of the display panel.

The invention discloses an auxiliary contact part and a relay, the auxiliary contact part comprises an auxiliary movable spring and an auxiliary static assembly, the auxiliary movable spring comprises a reed and an auxiliary movable contact, and the auxiliary movable contact is connected to the reed; the auxiliary static assembly comprises a leading-out pin and an auxiliary static contact, the tail part of the leading-out pin is provided with a supporting section, and the auxiliary static contact is fixedly connected to the tail end of the supporting section; the auxiliary static contact is used for being in contact with or separated from the auxiliary movable contact, and the contact and separation direction of the auxiliary movable contact and the auxiliary static contact is parallel to the axis of the supporting section. A plane perpendicular to the axis of the supporting section is defined; the area of the orthographic projection of the auxiliary static contact on the plane is larger than that of the orthographic projection of the supporting section on the plane.

Provided are a wiring substrate and a preparation method therefor, and a display apparatus. The wiring substrate comprises a base substrate, which comprises at least one bonding region and bending regions. The wiring substrate further comprises: a plurality of metal wiring layers, which are located above the base substrate; and a plurality of dielectric layers, wherein one dielectric layer is correspondingly arranged on the side of each of the plurality of metal wiring layers that is away from the base substrate, and each dielectric layer comprises an organic dielectric layer and an inorganic dielectric layer that are stacked, the orthographic projection of the organic dielectric layer on the base substrate not overlapping with the orthographic projection of the bonding region on the base substrate, and the orthographic projection of the inorganic dielectric layer on the base substrate at least partially overlapping with the orthographic projection of the bonding region on the base substrate.

The present invention discloses a multi-source heterogeneous large-scene remote sensing image matching method for global optimal solution, including: S1, preprocessing the input image information; S2, extracting the reference image point group features by constructing a sub-pixel point group feature detection algorithm; S3, constructing a multi-mode matching algorithm based on wavelet analysis for sub-pixel matching; S4, constructing a point group global registration algorithm for forward and inverse projection, hierarchical elimination, and obtaining the global optimal solution; S5, judging whether the sub-pixel requirement is met. If it is judged that the requirement is not met, return to step S4, otherwise output the result. According to the present invention, a high-precision sub-pixel is obtained, the consistency of image intensity and phase is ensured, an accurate matching result is obtained, and an algorithm system with good compatibility is provided.

The invention relates to a surface-enhanced Raman scattering detection substrate, a preparation method thereof and a Raman scattering detection method. The surface-enhanced Raman scattering detection substrate comprises a silicon substrate, wherein at least one surface of the silicon substrate is provided with a functional area; the plurality of silicon nanorods are positioned in the functional region; the silicon nanorod comprises a main body part and a head part, the main body part is located between the head part and the silicon substrate, and the main body part is connected with the head part and the silicon substrate; the radial width of the head part is gradually reduced in the direction perpendicular to and away from the surface of the silicon substrate; the total area of orthographic projections of the silicon nanorods on the silicon substrate accounts for 1%-10% of the area of the functional area. According to the surface-enhanced Raman scattering detection substrate, enrichment of molecules to be detected in a three-dimensional space can be achieved, the signal enhancement capacity is high, and the detection sensitivity of target molecules can be remarkably improved.

The invention relates to the technical field of intelligent control technology and edge computing application, in particular to an actuator real-time control method and system based on edge computing, and the method comprises the steps: carrying out the multi-mode state sensing and real-time preprocessing of an actuator at an edge node, mapping a high-dimensional feature to a low-dimensional evolution space through space-time compression projection, and carrying out the multi-mode state sensing and real-time preprocessing of the actuator; constructing a lightweight prediction model in combination with a linear skeleton and nonlinear residual reasoning, and dynamically generating a confidence interval to quantify uncertainty; further introducing an evolution updating mechanism based on a residual error, correcting a projection matrix, a dynamic operator and an inverse mapping matrix on line, and ensuring that the real states of the model and the actuator are consistent for a long time; and finally, based on the prediction result and the risk perception capability, adaptively generating an optimal control signal within the security constraint. According to the invention, high-precision, low-delay and robust edge real-time control is realized, and the robustness and adaptability of the system under complex working conditions are improved.

The present application belongs to the technical field of projection. Disclosed are a projection display device and a white balance adjustment method. The projection display device comprises a processor. The processor is used for: driving a primary color light source to emit primary color light, and acquiring a first color coordinate value of white light generated by mixing the primary color light; and when the deviation between the first color coordinate value and a standard color coordinate value is greater than a deviation threshold value, adjusting light emission parameters of the primary color light source on the basis of the standard color coordinate value, so that the deviation between a color coordinate value of white light generated by mixing primary color light emitted by the adjusted primary color light source and the standard color coordinate value is less than or equal to the deviation threshold value, wherein the standard color coordinate value is a white light color coordinate that the projection display device is expected to achieve. Thus, by means of accurate color control and correction, the projection display device can reduce color distortion and deviation and improve the definition and contrast of images, thereby enhancing the display stability and consistency.

According to the online path planning method and system for the automatic polishing robot, the one-to-one mapping relation between the plane and the curved surface is established through orthographic projection, the complex curved surface is locally segmented into the simple curved surface, the algorithm time complexity of searching the coordinates of the path points on the surface of the model is reduced, the running speed is increased, and the real-time path planning requirement is met; according to the method, path planning can be directly carried out on point cloud data, the requirements for reconstruction algorithm precision and model quality are low, three-dimensional path planning can be converted into two-dimensional plane path planning, a two-dimensional path in any shape can be generated, and automatic and efficient online path planning of a robot is ensured.

The invention relates to a display panel, a preparation method of the display panel and a display device. The display panel comprises a substrate, an isolation structure arranged on one side of the substrate and a plurality of light-emitting devices arranged on the side, away from the substrate, of the isolation structure. Wherein the isolation structure comprises a first isolation part, a second isolation part and a third isolation part which are arranged in a laminated mode, the orthographic projection of the second isolation part on the substrate is located in the orthographic projection of the first isolation part on the substrate, and the orthographic projection of the side, facing the third isolation part, of the second isolation part on the substrate is located in the orthographic projection of the third isolation part on the substrate; the distance between the edge of the orthographic projection of the third isolation part on the substrate and the edge of the orthographic projection of one side, facing the third isolation part, of the second isolation part on the substrate is a first length; the distance between the edge of the orthographic projection of the first isolation part on the substrate and the edge of the orthographic projection of the side, facing the first isolation part, of the second isolation part on the substrate is a second length. The display effect of the display panel is improved.

The embodiment of the invention provides a power module, communication equipment, a motor driver, a power assembly and a vehicle, the power module comprises an electronic device, the power module can effectively shorten the length of a heat dissipation path for heat dissipation of the electronic device, the heat dissipation efficiency of the electronic device is improved, and it is guaranteed that heat generated by the electronic device is conducted out in time. The power module comprises a first bottom plate, a first heat dissipation bonding pad and a first electronic device, the second surface is concave inwards to form a first heat dissipation blind groove, the first heat dissipation bonding pad has a first orthographic projection on the first surface, the first heat dissipation blind groove has a second orthographic projection on the first surface, and the first orthographic projection of the first heat dissipation bonding pad is greater than the second orthographic projection of the first heat dissipation blind groove. The first orthographic projection and the second orthographic projection at least partially coincide.

The invention provides a display module and a display device. The display module comprises a substrate, a pixel defining layer and a dielectric layer, and a plurality of light emitting units are arranged on the pixel defining layer in an array; the first deflection part is arranged in the dielectric layer, the orthographic projection of the first deflection part on the substrate covers the orthographic projection of the light-emitting unit on the substrate, and the refractive index of the first deflection part is larger than that of the dielectric layer; the junction area of the first deflection part and the dielectric layer is an arc-shaped curved surface; the first deflection part extends in the first direction, the curvature of the section in the second direction is gradually increased, and light emitted by the light emitting unit is deflected towards the second direction after passing through the first deflection part and is emitted in parallel; by introducing the first deflection part, the light and thin design of the display module is facilitated, the consistency and directionality of the light emitting direction are improved, the display effect is optimized, and the visual experience is improved.