23 results about "Projection View" patented technology

The invention discloses a large language model robustness visual diagnosis method based on multi-dimensional features and adversarial attacks. The method aims to break through a mode that traditional evaluation only depends on a single aggregation index, and a multi-dimensional text feature exploration system covering vocabularies, syntax, semantics and a structural layer is constructed, and a large-scale antagonism disturbance mechanism and a task self-adaptive quantification strategy are combined. And generating structured feature-adversarial instruction-robustness diagnosis data comprising the cue word to be evaluated and the corpus. On the basis, an interactive visual analysis system is constructed, and through bidirectional linkage of a feature statistical view and a semantic projection view, a user is supported to realize progressive exploration from macroscopic feature screening to microscopic semantic attribution under the double view angles of cue words and corpora, so that a root cause causing the fragility of the model is deeply diagnosed. According to the method, the key feature combination influencing the stability of the model can be identified, so that a basis is provided for directional optimization of the model, and the diagnosis depth of robustness evaluation is improved.

The invention discloses a virtual reality roaming method and system based on a multi-view panoramic image model, and belongs to the technical field of computer vision and virtual reality. Through a multi-viewpoint panoramic image set, real-time generation of a high-quality panoramic image from a known viewpoint to any unknown viewpoint is realized based on a spherical projection viewpoint transformation algorithm. Modeling generation methods for a road scene and a region scene are respectively designed according to scene feature differences, so that scene representation with complete coverage is constructed. According to the system, adjacent viewpoints are quickly positioned through a spatial index mechanism, geometric mapping and multi-viewpoint weighted fusion are performed by using the spherical projection algorithm, and a smooth and continuous free viewpoint roaming picture is rendered in a virtual reality environment. According to the method, on the premise of ensuring high fidelity of the scene, real-time rendering is realized on common consumption-level hardware, and the coherence and the degree of freedom of immersive interactive experience are improved.

The invention discloses a multi-robot process scheduling and cooperative control method based on artificial intelligence, and the method comprises the steps: carrying out the modeling of a process structure and robot resources, and generating a unified task information queue; environment perception and multi-source point cloud acquisition are carried out to generate multi-source point cloud data; carrying out Poisson curved surface reconstruction to obtain a three-dimensional reconstruction result and an occupied grid map; selecting a projection view angle and a grid resolution, and generating a multi-channel two-dimensional environment grid map; constructing an improved HarDNet network, and generating an environment semantic and risk map; performing task allocation and path planning to form a cooperative control plan; and performing cooperative execution, controlling the physical robot to execute tasks, and controlling the software robot to process businesses. Through combination of Poisson curved surface reconstruction and improved HarDNet network, unified scheduling and cooperative control of multi-robot tasks are realized.

The invention discloses an obstacle distance measurement method and system based on panoramic tiled display. Four-way or six-way fisheye cameras are installed on a vehicle, images around a vehicle body are collected, 3D rendering splicing is carried out based on calibration data (internal parameters / external parameters), and a 360-degree panoramic aerial view image is generated. A user clicks two points of a screen through a display terminal, a system converts screen coordinates into 3D normalized vertex coordinates through viewport inverse transformation, relative coordinate differences are calculated and then expanded into homogeneous coordinates, the homogeneous coordinates are converted into physical coordinate differences in combination with a pre-stored rendering transformation matrix inverse matrix (generated by model / projection / view transformation combination), and the 3D normalized vertex coordinates are converted into 3D normalized vertex coordinates. And finally calculating the actual physical distance between the two points. The system supports dynamic refreshing of a ranging result and renders a distance marking line on a panoramic image. According to the method, through multi-camera calibration, coordinate space mapping and a matrix transformation algorithm, interactive obstacle distance measurement in a vehicle-mounted panoramic display scene is realized, and the method is suitable for intelligent driving, vehicle auxiliary driving and other scenes.

The application provides a pinhole image splicing true value acquisition and splicing method based on a heterogeneous camera combination. The acquisition method first symmetrically installs two pinhole cameras on a support, and installs an fisheye camera between the two pinhole cameras. Based on a double spherical camera model, the three cameras are calibrated to obtain the internal parameters and external parameters of the three cameras. The left eye pinhole view, the right eye pinhole view and the middle eye fisheye view of the target scene are simultaneously acquired by using the three cameras. The middle eye fisheye view is subjected to equirectangular projection. According to the internal parameters and external parameters of the three cameras, the left eye pinhole view and the right eye pinhole view are projected to the equirectangular projection view plane respectively, multi-camera coordinate system one is completed, and the splicing true value is obtained. The application has the core advantages of the hardware structure design and the heterogeneous camera image registration algorithm, can stably acquire images without seams and time sequence consistency, and provides strong support for the true value reference of the precision verification and model training of subsequent panoramic video splicing.

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.

The invention discloses a GIS partial discharge diagnosis method based on a deep multi-view convolutional neural network, and the method comprises the steps: obtaining an ultrahigh frequency signal of GIS partial discharge, and extracting a physical parameter of the ultrahigh frequency signal to obtain a three-dimensional statistical graph containing a power frequency phase, a discharge capacity and the number of discharge times; inputting the three-dimensional statistical atlas into a partial discharge detection model; generating a plurality of orthogonal projection views from the three-dimensional statistical graph through coordinate transformation by using a multi-view projection layer; performing feature extraction on the plurality of orthogonal projection views by using a feature extraction layer to obtain feature maps of different scales; fusing the feature maps of different scales by using a feature fusion layer to obtain fused high-dimensional features; processing the high-dimensional features by using a full-connection classification layer to obtain a partial discharge type diagnosis result; according to the method, the calculation efficiency and the processing speed of fault diagnosis can be remarkably improved, and relatively high recognition accuracy and robustness can be kept under complex working conditions.

Reproductions 1.1 to 1.8 are six orthographic projection views and two perspectives showing a dust box for cleaning appliance, reproductions 1.9 to 1.16 are reference views for representing a physical appearance of the dust box for cleaning appliance; the reference views are provided only for illustrative purpose and thus form no part of the claimed design.

The application discloses a cone beam CT geometry correction method suitable for irregular tracks, adopts a new optimization constraint iteration method based on a back projection model to solve geometry parameters under each projection view, and most of existing correction methods all assume that the internal geometry relation of a reference point in a phantom is accurate and known, and rarely deeply study whether the phantom precision is suitable for the correction model. Through the disclosure of the application scheme, the correction method is a high-noise robust correction method, and high-precision correction can be realized even when the resolution of a system to be calibrated is twice that of a phantom measurement system.

The application relates to the field of projection display technology, in particular to a windshield baking and bending mold. In the windshield baking and bending process, the baking and bending mold not only makes the whole windshield meet the bending requirement through an outer frame, but also is provided with a control block corresponding to the receiving and display light projection position of the windshield in the outer frame; the control block has a control surface corresponding to the projected area surface type of the windshield; the baking surface type fluctuation of the projected area of the windshield under the action of the self weight is reduced under the premise of controllable cost. The application can improve the stability of windshield processing, at least ensure that the surface type of the projection area meets the projection requirement of the HUD display device, and improve the projection viewing experience.

1. The name of the design product: integrated house (1). 2. The use of the design product: assembled integrated house for living, residence or office, etc. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The six orthogonal projection views of the design have clearly expressed all the design features of the product, and the perspective view is omitted.

A projection system includes a control module, a projection tube, an aiming driver, an observation device and an observation driver. The control module is configured to issue a first control command and a second control command. The aiming driver is electrically connected to the projection tube and configured to control, in response to the first control command, a projection viewing-line of the projection tube to be aligned with a calibration point. The observation driver is electrically connected to the observation device and configured to control, in response to the second control command, an observation viewing-line of the observation device to be aligned with the calibration point. The projection tube and the observation device are controlled asynchronously.

The application discloses a kind of based on projection numerical control processing simulation method and medium, the method includes the following steps: the three-dimensional model of the workpiece to be processed is imported;Obtain the projection view of three-dimensional model, projection view includes front view, rear view, left view, right view, top view and overhead view;Surface machining feature information and depth cross-section machining feature information of the workpiece to be processed are obtained based on projection view;According to surface machining feature information and depth cross-section machining feature information, determine the region to be processed;According to depth cross-section machining feature information and the region to be processed, generate tool contact point trajectory;Based on tool contact point trajectory, generate numerical control processing trajectory, simulate.The application determines the region to be processed based on the projection six views of three-dimensional model, generates tool machining trajectory, can obtain higher precision processing area;And from three-dimensional model directly generate machining trajectory, without converting three-dimensional parts into two-dimensional drawing again processing trajectory design, greatly improve the efficiency of workpiece processing.

This invention discloses a direct-viewing near-eye display system and design method based on a transparent display screen with micro-nano luminescent pixels, belonging to the fields of augmented reality and near-eye display technology. Its core lies in: on the light-emitting side of the micro-nano luminescent pixels of the transparent display screen, a macro-pixel unit array is arranged, and a preset phase distribution is programmed for each area, directly modulating the display light to enter the human eye, eliminating traditional relay optics and achieving ultra-lightweight display. The system includes: a transparent display substrate, which also serves as a lens; a micro-nano luminescent pixel array located on the substrate, with the light-emitting side facing the human eye, forming a two-dimensional periodic macro-pixel unit array with a non-uniform density arrangement; and optical control elements disposed on the light-emitting side near the human eye, applying a preset phase distribution to each macro-pixel to achieve light collimation, deflection, and focusing, forming a Maxwell projection view. The remaining areas are transparent, used for observing real objects. Because the virtual image is directly focused into the eye, the imaging depth and physical distance are decoupled, eliminating convergence-accommodation conflict in principle. This invention has advantages such as high luminous efficiency, low power consumption, and lightweight design.

This invention relates to the field of computer-aided design technology, and discloses a method, apparatus, device, and storage medium for determining two-dimensional views of multiple parts. The method includes: obtaining corresponding blank entities and multiple part entities based on multiple projection entities; performing view projection on the multiple part entities to obtain corresponding multi-part entity projection views; determining position information and dimension information based on the multiple part entities and blank entities; and drawing the outline of the blank entity in the multi-part entity projection view using the position information and the dimension information. By performing view projection on the multiple part entities in the above manner, and then drawing the outline of the blank view in the multi-part entity projection view based on the position information and dimension information, compared with the prior art of obtaining part views by simultaneously projecting three-dimensional part entities and blank lines, the efficiency and accuracy of determining two-dimensional views of multiple parts can be effectively improved.

Provides a hat that exhibits improved breathability. [Solution] A hat X is provided, comprising a crown 1 and an air intake portion 2 that forms a pocket a on the outer surface of the crown 1, wherein the crown 1 has a ventilation portion 11 that connects the inside and outside of the crown 1, and the air intake portion 2 is provided such that the opening a1 of the pocket a faces forward, the internal space a2 of the pocket a is aligned substantially parallel to the front-rear direction, and covers at least a part of the ventilation portion 11, and the air intake portion 2 is provided on the outer edge of the crown 1 in a front projection view.

The utility model belongs to the technical field of projection display, and provides a semi-cylindrical micro-mirror micro-optical projection curtain which comprises a base material layer and a micro-optical structure layer. The micro-optical structure layer is arranged on the back surface of the base material layer, the micro-optical structure layer comprises a plurality of concave micro-mirrors, the concave micro-mirrors are of semi-cylindrical structures, the curved surfaces of the concave micro-mirrors are opposite to the base material layer, the plurality of concave micro-mirrors are distributed in an array mode, the lowest concave micro-mirror is vertically arranged, and the included angle between the axis of each concave micro-mirror and the vertical surface is gradually increased from bottom to top. According to the projection curtain, a plurality of concave micro-mirrors are arranged on the back surface of a base material layer to form a micro-mirror array, and each concave micro-mirror is an independent reflecting surface. The micro-mirror angles of the longitudinally arranged concave micro-mirrors are gradually increased from bottom to top, so that light rays diffused up and down by the projection curtain can be reflected to a projection viewing area, and the reflection gain of the projection curtain is improved. The semi-cylindrical concave micro-mirror is vertically placed, so that projection light can be effectively diffused, and the horizontal visual angle is increased.

1. Name of this design product: Magnetic eyelet buckle. 2. Purpose of this design: This design is for use as a button on clothing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design points: a 3D view of the combined state. 5. Other situations requiring explanation: ① This design product consists of four independent components (1, 2, 3, 4). The submitted views include: the front view, rear view, left view, right view, top view, bottom view, and 3D view of each of Component 1, Component 2, Component 3, and Component 4, showing their independent unassembled state. ② Six-view orthographic projection and perspective view of combined state 1 (combination of component 1 and component 2). ③ Six-view orthographic projection view and perspective view of combined state 2 (combination of component 3 and component 4). ④ Six-view orthographic projection and perspective view of combined state 3 (combination of component 1, component 2, component 3 and component 4).

1. The name of the design product: coffee machine. 2. The use of the design product: for brewing coffee and other beverages. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: the brewing state is the front projection view, the pouring state is the use state 1, and the grinding state is the use state 2.

The invention provides a pinhole image splicing truth value acquisition and splicing method based on heterogeneous camera combination, and the method comprises the steps: symmetrically installing two pinhole cameras on a support, installing a fisheye camera between the two pinhole cameras, calibrating the three cameras based on a double-spherical camera model, and carrying out the calibration of the three cameras, the method comprises the following steps: obtaining internal parameters and external parameters of three cameras, simultaneously acquiring a left-eye pinhole view, a right-eye pinhole view and a middle-eye fisheye view of a target scene by using the three cameras, performing equidistant rectangular projection on the middle-eye fisheye view, and obtaining a target scene according to the internal parameters and the external parameters of the three cameras. And respectively projecting the left-eye pinhole view and the right-eye pinhole view to a view plane of equidistant rectangular projection to complete unification of a multi-camera coordinate system and obtain a splicing true value. Core advantages are formed by means of hardware structure design and a heterogeneous camera image registration algorithm, images which are free of splicing seams and consistent in time sequence can be stably obtained, and powerful support is provided for precision verification of follow-up panoramic video splicing and truth value reference of model training.

1. The name of the design product: flying car. 2. The use of the design product: for manned land travel or low-altitude flight. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: this design includes two states of unfolding and folding, and the projection view in the folded state shows the appearance shape of the product in the folded state.

1. Name of the product in this design: ventilation fan (3). 2. Purpose of this design: for ventilation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 2. 5. Other orthographic projection views are already shown in the various 3D drawings, so they are omitted.