172 results about "Two-dimensional graph" patented technology

The invention relates to a point cloud data annotation method, a segmentation model determination method, a target detection method and related equipment. The annotation method comprises the steps of obtaining original point cloud data collected by a laser radar; projecting the original point cloud data to a two-dimensional graph, and obtaining each piece of target annotation information based on the two-dimensional graph; detecting the original point cloud data through a trained target detection model, and determining detected target detection information; and on the basis of the corresponding target category confidence, adopting target detection information to correct the target annotation information, obtaining a target detection data set of the original point cloud data, wherein the target detection data set comprises the position information and the target category of each target. By adopting the method, marking can be rapidly and accurately carried out.

The invention discloses a continuous blood sugar monitoring based method for processing and displaying diabetes management information with intervention information. The method comprises an information processing step and an information displaying step. In the information processing step, blood sugar change information is continuously acquired in all weather through an optical monitoring based noninvasive blood sugar monitoring technology; and in the information displaying step, a blood sugar monitoring result generated by continuous blood sugar monitoring is mapped to a two-dimensional graph to be displayed, and a curve graph of blood sugar changed with time change is formed. The method has the beneficial effects that the optical monitoring based noninvasive blood sugar monitoring technology is adopted, and a displaying method for correlating life intervention information of drug treatment, diet, exercise and the like with blood sugar change is provided, so that patients are helped to understand positive effects of the drugs, the exercise and the diet on the blood sugar change, visual knowledge is provided for the patients, and the patients are promoted to actively perform intervention and management.

The invention provides a BIM-based fabricated member parametrization design method. The method comprises the steps of 1: according to functions of fabricated building members, performing component disassembly on a building structure drawing to form a plurality of disassembly design schemes, wherein the schemes are specifically expressed in a form of "total construction design + BIM issued component disassembly drawing"; 2: by using Revit software, establishing three-dimensional models of the building members in the disassembly design schemes; 3: by applying three-dimensional modeling software,making rough profiles of the members, adding parameters, and forming controllable models; 4: through a geometric relationship between the parameters of the members, creating a relational expression;and 5: from the three-dimensional models of the members, obtaining a two-dimensional graph comprising the parameters of the members and the relationship expression. According to the design, the drawing needed by factory production is quickly and accurately generated, and the material requirement amount can be automatically calculated and summarized according to the parameters in the drawing.

The invention provides a 3D (three dimensional) cylinder mirror film with alignment targets. The 3D cylinder mirror film with the alignment targets comprises an upper cementing layer which is a transparent double faced adhesive tape, an upper cylinder mirror layer which is a transparent upper cylinder mirror, a lower cylinder mirror layer which is a transparent lower cylinder mirror, a lower substrate layer which is a transparent substrate, a lower cementing layer which is another transparent double faced adhesive tape, and a plurality of the alignment targets which are arranged on appropriate positions of the lower substrate layer or the lower cylinder mirror layer and of two dimensional graph structure, and have optical outline strengthening features. The 3D cylinder mirror film with the alignment targets provides a double face gluing function during the assembly and gluing process among the 3D cylinder mirror film with the alignment targets, a displayer screen and a touch panel, and additionally can provide alignment target images high in definition and high in contrast ratio for an optical camera system used in assembly alignment, substantially improves assembly alignment accuracy between the 3D cylinder mirror film and the displayer screen, and achieves the purpose of providing the best 3D image quality.

The invention relates to a collision detection method and a system for a three-dimensional model. The method comprises the steps of projecting two to-be-detected three-dimensional STL models in the XOY plane to obtain two corresponding two-dimensional graphs; judging whether the two two-dimensional graphs are intersected or contained in each other or not; on the condition that the two two-dimensional graphs are intersected or contained in each other, determining that the two three-dimensional STL models will collide with each other. Based on the method and the system, the collision detection accuracy of three-dimensional models is improved. Meanwhile, the algorithm complexity is simplified, and the detection efficiency is improved.

The invention relates to a method for establishing a three-dimensional geometrical structure of a dog left ventricle conduction system based on a local linear embedding method, in particular to a method for mapping a plane image into a curved surface image. The method comprises the following steps to complete a ventricle conduction system: firstly, mapping dog left ventricle three-dimensional geometrical configuration to a plane by an LLE algorithm, and recording as a two-dimensional linear graph of the ventricle conduction system; then, extracting the conduction system in a two-dimensional graph of a real ventricle conduction system, and integrating the conduction system into a new graph; and finally, mapping the integrated new graph to the left ventricle three-dimensional geometrical configuration by using the LLE algorithm again so as to obtain the three-dimensional geometrical structure of the left ventricle conduction system. The invention retains the local linear characteristic of a space structure, has the characteristics of high efficiency and speed and uses real data to reflect the real dog left ventricle conduction system.

The invention discloses a precise three-dimensional curved surface laser marking method. The method comprises unwrapping a three-dimensional object model into a two-dimensional unwrapped graph through a curved surface unwrapping algorithm, then mapping two dimensional images onto the two-dimensional graph, and converting the two-dimensional unwrapped graph mapped with the two-dimensional images into a three-dimensional object model mapped with the two-dimensional images; on the basis of the three-dimensional object model, establishing a three-dimensional coordinate system, taking the origin coordinate as the starting point to compute and obtain the mapping points of the two-dimensional images on the three-dimensional object model layer by layer in the surface direction of the three-dimensional object model, performing distortion error correction on the obtained mapping point coordinates to generate position marking parameters and storing the position marking parameters into a database; during marking, reading the database through a dynamic marking system, and marking the surface of an object according to the position marking parameters. The precise three-dimensional curved surface laser marking method can achieve rapid and precise marking on the surfaces of objects in random shapes; the two-dimensional images marked on the surfaces of the objects can avoid distortion.

The invention relates to a laser etching method of a three-dimensional curved surface, is applied to the fields of aerospace, electronic and optical devices, and solves the problem that ideal texturegraphs cannot be acquired as a conventional three-dimensional curved surface laser processing method can only be utilized to process parts with to-be-processed surface texture characteristics and processed graphs have angle change. The laser etching method comprises the following steps that: (1) a two-dimensional graph is mapped to a corresponding position of a three-dimensional curved surface model; (2) the graph is cut according to a processing region of a scanning galvanometer and laser focus depth, and central point normal vector coordinates of cut regions are calculated; (3) processing tracks of the scanning galvanometer in the cut regions are confirmed; and (4) the central point normal vector coordinates acquired in the step (2) are adopted as target point positions of five-shaft motion of a machine tool, the processing tracks of the scanning galvanometer acquired in the step (3) are adopted as processing graphs of the cut regions, scanning processing is carried out, and laser etching processing of curved surface parts is achieved.

The invention discloses a multifunctional assembled 3D printing device and a multifunctional assembled 3D printing method. The device comprises a circular chassis, multiple workbenches, a rotary motor, and single printing assemblies. The center of the circular chassis is provided with a mounting hole which is coaxial with a gear ring in the mounting hole. The multiple workbenches are fixed to the side wall of the gear ring at intervals along the circumferential direction. The rotary motor is used for driving the gear ring to rotate. The multiple single printing assemblies are disposed in the mounting hole, and each single printing assembly includes a vertical lifting mechanism, a circumferential rotary motor, a horizontal telescoping mechanism, a printing head, and the like. The method comprises the steps of using first laser to scan a photographic film according to a two-dimensional graph to form a latent image, completing 'charging', 'adsorption', 'neutralization', 'release' and other operations by the device, and using second laser or other heat sources to sinter-mold a product in a conventional manner.

The invention discloses a method and a system for extracting a two-dimensional electric construction drawing from a digitized three-dimensional model. The method for extracting the two-dimensional electric construction drawing from the digitized three-dimensional model comprises the following steps of: obtaining identifying information of electrical equipment quoted in the digitized three-dimensional model; filtering the electrical equipment in the digitized three-dimensional model when the identifying information of the electrical equipment is identical with that in a two-dimensional block database and obtaining a first two-dimensional graph according to the digitized three-dimensional model of the remaining portion; finding two-dimensional blocks corresponding to identifying information of the electrical equipment from the two-dimensional block database when the identifying information of the electrical equipment is identical with that in the two-dimensional block database to obtain a second two-dimensional graph; synthesizing the two-dimensional electric construction drawing according to the first two-dimensional graph and the second two-dimensional graph. According to the method and the system for extracting the two-dimensional electric construction drawing from the digitized three-dimensional model, the drawing efficiency and drawing depth can be effectively improved through the calling of drawing data of the database.

The invention discloses a method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing. The method includes drawing three-dimensional photonic crystal models of complete cycles, geometric morphology channels or defects; slicing and layering the three-dimensional photonic crystal models to divide the three-dimensional photonic crystal models into a plurality of two-dimensional graphs; sequentially exposing the two-dimensional graphs layer by layer by the aid of a micro-projection 3D printing optical path system, absorbing light by the aid of photosensitive resin to solidify the two-dimensional graphs layer by layer and ultimately printing the three-dimensional photonic crystal templates. The method is based on LED plane projection lithography technologies and is combined with printing principles of three-dimensional printing technologies, so that planes can be quickly formed layer by layer. Tiny imaging light spots can be adjusted according to the sizes of the models in the horizontal directions and requirements on forming precision and can be ultimately projected, and clear imaging locations of the light spots can be effectively positioned and focused. The method has the advantages of high customization degree, full-automatic manufacturing, simple manufacturing procedures, low manufacturing cost, high forming speed and the like.

The present invention overcomes the limitations of the prior art by exploiting properties of the projection of a three-dimensional building structure (such as a roof) onto the ground. This projection is a two-dimensional spatial graph, which can be constructed for example by a user or by an image recognition algorithm. The spatial graph is processed to recreate a three-dimensional model of the building structure.

Aspects of the invention relate to the technical field of computer vision, and provide a texture image generation method and apparatus. The texture image generation method comprises the steps of obtaining a target object two-dimensional diagram and obtaining the target object two-dimensional diagram; creating a local contour mask, namely selecting a local part of the two-dimensional graph of the target object to create the local contour mask; a texture graph obtaining step: obtaining a two-dimensional texture graph with the same local texture style as the two-dimensional graph of the target object; and an image fusion step: fusing the two-dimensional texture image with the two-dimensional image of the target object through the local contour mask to form a two-dimensional composite image. Texture image data generated through the method are basically the same as real texture images, and a large number of vivid texture images can be generated in a short time at low cost.

The invention discloses a bridge structure information model system for generating three-dimensional and two-dimensional graphs and a use method thereof. The system comprises a kernel database, an input platform oriented to a designer, a three-dimensional graph processing module and a two-dimensional graph processing module. The kernel database stores bridge structure information through BIM software. The input platform oriented to the designer is used for inputting bridge structure design main control information. The three-dimensional graph processing module and the two-dimensional graph processing module process geometric information of a bridge structure in the kernel database and display the geometric information on a displayer of a computer. During use, the input platform oriented to the designer inputs the information to the kernel database, then the three-dimensional graph processing module and the two-dimensional graph processing module process the data, and three-dimensional or two-dimensional graphs or drawings are output. The defects in the prior art are overcome, and the map making problem of a BIM model is solved.

The invention discloses a making method of a two-dimensional code graph, which comprises the following steps: encoding a first type of information to generate a first data set; encoding and encrypting a second type of information to generate a second data set; sequentially connecting the first data set, a self-defined separator and the second data set into a third data set; generating the two-dimensional code graph by the third data set. The invention also discloses a decoding method for the two-dimensional code graph, which comprises the following steps: scanning the two-dimensional code graph to obtain the third data set; detecting whether the third data set comprises the self-defined separator; if the third data set comprises the self-defined separator, extracting data behind the separator in the third data set and using the extracted data as the second data set and then carrying out decryption and decoding on the second data set to obtain the private second type of information, or prompting error information. According to the invention, by adopting an encrypting means, safety transmission of private information is implemented; by adopting the separator, the same two-dimensional graph can bear two or more types of information so as to implement two purposes of one code.

The invention provides a data processing method and device based on a distributed fiber sensing system, and belongs to the technical field of data processing. The data processing method comprises the steps: obtaining original data, and enabling the original data to be converted into a two-dimensional graph according to a preset rule; obtaining the noise standard deviation of the two-dimensional graph; obtaining the gray scale standard deviation of the two-dimensional graph according to the noise standard deviation; carrying out the filtering of the two-dimensional graph based on a two-dimensional bilateral filtering algorithm, and obtaining the two-dimensional graph after noise filtering, wherein the two-dimensional bilateral filtering algorithm comprises the gray scale standard deviation and a preset distance weight. Compared with the prior art, the method and device provided by the invention effectively improve the signal to noise ratio of the original data, reduce the calculation burden, and are simpler and more practical.

In one embodiment, a method and apparatus for animated load graph analysis of system metrics is disclosed. The method includes plotting system metric data of components for three dimensions in a two-dimensional graph for a plurality of distinct time periods, wherein a Z-axis of the three dimensions is represented in the two-dimensional graph by colors that each indicate a frequency of an occurrence at an intersection of a X- and a Y-axis of the two-dimensional graph, and animating the two-dimensional graph by portraying the system metric data for the plurality of distinct periods of time in a sequential order beginning with the earliest time period of the distinct periods of time. Other embodiments are also disclosed.

The invention discloses a method for reducing three-coordinate measuring compensating error of a blade surface. The method is characterized by comprising the steps of manufacturing a new measuring curve and the comparing and analyzing the measuring deviation; the new measuring curve is specifically manufactured by the following steps: 1, manufacturing the two-dimensional graph of each section according to the theoretical point proposed by the design drawing; 2, generating a three-dimensional body surface through the plurality of two-dimensional graphics of the sections; 3, obtaining the closed measuring point of each section; 4, deviating the measuring point of each section by a probe radius along the normal direction to obtain the coordinate of a new measuring point; 5, generating a new section curve through the new measuring point; 6, connecting all sections produced according to the new measuring point, so as to obtain a new measuring curve. The method has the beneficial effects that the cosine measuring error of the body surface is controlled to be within 0.005, thus the problem of cosine error caused by the current two-dimensional surface measuring can be effectively solved, and the true deviation value of the surface of the end bending part is obtained.

The invention discloses a BIM-based method and device of automatic labeling of a two-dimensional graph. A three-dimensional building model generated on the basis of BIM is acquired; the three-dimensional building model is projected to generate the two-dimensional planar graph; and size labeling is carried out on the two-dimensional planar graph according to a preset labeling rule to generate a two-dimensional planar graph with labeling information. Therefore, according to the BIM-based method and device of automatic labeling of the two-dimensional graph provided by the invention, two-dimensional transformation is carried out on the three-dimensional building model on the basis of a BIM platform, the two-dimensional planar graph is automatically generated by a three-dimensional graph, sizelabeling is automatically carried out on the two-dimensional planar graph to facilitate use of subsequent production and machining links, and efficiency of BIM fabricated-building technology is improved.

The invention discloses a transformer substation cross-platform two-dimensional and three-dimensional graph linkage display system and method. The method includes embedding a two-dimensional and three-dimensional container into a two-dimensional graph editor of a monitoring system; acquiring all points needing to be dynamically changed in the three-dimensional model file, and associating the points with equipment points in a database; and by using the three-dimensional moving point data refreshing module, enabling the real state of the equipment to be completely consistent with the state presented by the three-dimensional information model, achieving the consistency of two-dimensional and three-dimensional picture equipment state display, and dynamically changing and displaying linked three-dimensional pictures and two-dimensional pictures. The method can be operated on various operating systems; the function of seamlessly accessing the three-dimensional picture of the transformer substation in a cross-platform two-dimensional power monitoring system is realized; and the real state of the electrical equipment is synchronously updated to the equipment display state in the two-dimensional and three-dimensional pictures, so that fusion switching and linkage display of the two-dimensional and three-dimensional pictures are truly realized, the management and control capability of the electrical equipment is comprehensively improved, and the monitoring means is perfected.

The invention discloses a product evaluation method. The method includes acquiring sample data corresponding to product indexes; performing weighting and calculating on the product indexes according to the sample data to acquire score of each product index; generating a two-dimensional graph for product index evaluation according to the score of each product index. The invention further disclosesa product evaluation device and a storage medium.

The invention relates to the technical field of semiconductor technologies, and provides a process method for improving two-dimensional graph resolution. According to the method, a double-exposure mode is adopted, and for the region where circular beads are generated easily and shortened easily in a final design graph, in the first exposure process, a first graph of a first metal pattern plate is preprocessed to outwards extend by a certain distance; in the second exposure process, a second photoetching glue layer is coated, a second metal pattern plate is used for blocking a pre-extension region, the finally-formed graph is made to be consistent with the design graph through exposure etching, the phenomena that the graph generates corners and becomes round, and the line end is shortened are avoided, graph distortion is prevented, and the resolution of the two-dimension graph is improved.

System, method and computer program product for combined scheduling of two different slab sequences by a rational technique. A two-dimensional grid graph having a direct slab sequence as a first dimension and an inventory slab sequence as a second dimension is prepared by processing of a computer as a data structure represented on a memory or a hard disk drive of the computer. A processing program of the computer generates two child nodes corresponding to a direct slab and an inventory slab, in each node of the two-dimensional graph according to a predetermined algorithm. By defining an appropriate weighting function, the processing program of the computer weights edges between nodes in the two-dimensional grid graph. After forming the weighted graph on a storage device of the computer such as the memory or the hard disk drive, the processing program of the computer calculates a path from a start point to an end point as a shortest path search problem.