17 results about "Horizontal line segment" patented technology

The embodiment of the invention discloses a method and device for extracting cross-page table data. The method comprises the following steps that a page object in OFD is analyzed, and text information and line segment information are extracted; classifying the extracted line segments into a horizontal line segment group and a vertical line segment group, and combining the line segment data and the text data of the first page and the second page to form a unified line segment data group and a text data group; identifying a table structure from the merged line segment data set, forming an intersection point grid by detecting intersection of horizontal line segments and vertical line segments, and constructing rectangular cells based on adjacent intersection points to form a cell set; and extracting a text associated with each cell by judging whether the rectangular boundary of each text character is located in the cell boundary or not. According to the embodiment of the invention, the text in the cross-page table is extracted by vectorizing the identification table, the complex page layout, the variable table structure and the potential data continuity problem can be processed, and the consistency and the accuracy of the extraction result are further improved.

This invention provides a method, apparatus, electronic device, and storage medium for automatically arranging standard punch markings, relating to the field of mold design and manufacturing technology. The method includes the following steps: on a target 3D drawing, with a first arrangement position as the center, determining whether vertical and horizontal line segments exist within a preset radius. Specifically, if only vertical line segments exist, determining the target direction vector for arranging the punch based on the vertical line segments; if both vertical and horizontal line segments exist, determining the target direction vector for arranging the punch based on the vertical and horizontal line segments; and arranging standard punch markings on the corresponding punch holes in the target 3D drawing according to the target direction vector. This invention aims to solve the problem of manually arranging standard punch markings, featuring high intuitiveness, low repetition rate, and accurate placement, significantly improving the efficiency of standard punch arrangement.

The invention relates to the technical field of image processing, in particular to a line segment detection optimization method and device, and the method comprises the following steps: obtaining an image initial line segment set outputted by an original line segment detector; dividing the initial line segment into a horizontal line segment and a vertical line segment, and uniformly defining a starting point and an ending point of each line segment; constructing a PointsMap to record features and attributes of end points of all line segments in the image, traversing points with starting point features in the PointsMap, judging whether a point with an end point feature and the point with the starting point feature meet a preset constraint condition or not, and if the preset constraint condition is met, forming a mergeable line segment combination by two line segments corresponding to the point with the end point feature and the point with the starting point feature; refitting the line segments in each mergeable line segment combination into one line segment to obtain a new line segment set; and performing meaningless short line segment elimination processing on the new line segment set to obtain an optimized line segment set. The method solves the problem that a large number of meaningless short line segments are frequently generated in an existing line segment detection algorithm.

The invention discloses a power transmission tower three-dimensional modeling method and device based on point cloud data, terminal equipment and a storage medium, and belongs to the technical field of three-dimensional modeling. According to the method, point cloud data of a power transmission tower is subjected to two-dimensional projection, and target intersection points of each horizontal line segment and a plurality of non-horizontal line segments are identified; matching the target intersection points of different two-dimensional projection images to generate a plurality of key point sets; according to the key points, generating a plurality of to-be-identified planes of each two-dimensional projection image; according to the key point set, to-be-recognized planes of different two-dimensional projection images are divided, and a plurality of plane sets are generated; and converting the two-dimensional line segment of the plane to be identified in each plane set into a three-dimensional line segment, and splicing the three-dimensional line segments in all the plane sets to generate a three-dimensional model of the power transmission tower. Therefore, by implementing the three-dimensional modeling method, the defects of low efficiency and low accuracy of an existing three-dimensional modeling method of the power transmission tower can be overcome.

The application provides an image automatic deviation correction method and system, which comprises the following steps: acquiring an image, and pre-processing the image to remove noise and background interference in the image, and to enhance line features, so as to obtain a to-be-detected image; identifying vertical line segments and horizontal line segments in the to-be-detected image, and calculating a vertical inclination angle and a horizontal inclination angle of the to-be-detected image according to the vertical line segments and the horizontal line segments; judging whether the vertical inclination angle and the horizontal inclination angle are less than a preset angle; if yes, rotating the to-be-detected image to obtain a rotated image, and specifically, the accuracy of inclination angle identification is greatly improved by fusing and judging the vertical and horizontal two-dimensional line segments.

Embodiments of the present application provide a table decoration layout method, device and equipment and a storage medium. In the embodiments of the present application, based on the table coordinate data of the key positions in the target table to be laid out, a horizontal line segment set in the horizontal axis direction and a vertical line segment set in the vertical axis direction of the target table are determined; based on the line segment set in the horizontal axis direction and the line segment set in the vertical axis direction and a preset area frame composition rule, a plurality of area frames in which decorations can be placed in the target table are determined; based on the table style of the target table, the size of the plurality of area frames and a preset selection rule, one or more corresponding decorations are selected for the plurality of area frames from a preset decoration pool, and the preset selection rule includes a rule that decorations in the same table are not repeated; and based on the center positions of the plurality of area frames, the placement positions of the one or more corresponding decorations of the plurality of area frames are determined.

The invention relates to the field of graphic processing, in particular to a method, a system and equipment for judging the arrow direction of a bubble control and a medium, and the method comprises the following steps: acquiring image data of the bubble control; calculating the image data according to an edge detection algorithm to obtain a contour image of the image data; calculating the contour image according to a straight line detection algorithm to obtain all straight line segments in the contour image; in all the straight line segments, target line segments at the upper end and the lower end in the horizontal direction are obtained through filtering and sequentially serve as a first horizontal line segment and a second horizontal line segment, and target line segments at the left end and the right end in the vertical direction are obtained through filtering and sequentially serve as a first vertical line segment and a second vertical line segment; according to the lengths of the four target line segments, the arrow direction of the bubble control is judged. A large number of training samples are not needed, and the implementation cost is low; meanwhile, the method is directly carried out based on calculation and analysis of image data, so that the recognition speed is high, and the efficiency is high.

The invention discloses a method for obtaining logging while drilling curve sampling rate data, and relates to the technical field of oil-gas exploration, and the method comprises the steps: extracting straight line segments and a text object based on PDF page information, and screening out transverse line segments and vertical line segments from the straight line segments; screening out a depth channel drawing vertical line segment from the vertical line segments, and screening out a depth text object located in the depth channel drawing vertical line segment from the text object; screening out a depth transverse line segment from the transverse line segments, and matching the position coordinates of the depth text object and the depth transverse line segment; substituting the depth transverse line segment and the depth text object matched with the depth transverse line segment into a preset mapping conversion relational expression, and calculating to obtain a mapping parameter value; and screening sampling rate line segments from the transverse line segments, and calculating depth data based on the sampling rate line segments and the mapping relational expression. According to the method, the logging while-drilling curve sampling rate data can be more accurately obtained from the original PDF file.

The invention provides a standard punch mark automatic arrangement method and device, electronic equipment and a storage medium, and relates to the technical field of mold design and manufacturing. The method comprises the following steps: on a target three-dimensional drawing, by taking a first arrangement position as a circle center, determining whether a vertical direction line segment and a horizontal direction line segment exist in a preset radius range, specifically, if only the vertical direction line segment exists, determining a target direction vector for arranging a punch according to the vertical direction line segment; if it is determined that the vertical line segment and the horizontal line segment exist at the same time, a target direction vector for arranging the punch is determined according to the vertical line segment and the horizontal line segment; and according to the target direction vector, a standard punch mark is arranged on a corresponding punched hole of the target three-dimensional drawing. The method aims to solve the problem of manual arrangement of standard punch marks, has the characteristics of high intuition degree, low repetition rate and accurate arrangement position, and can greatly improve the arrangement efficiency of the standard punch.

The invention provides a low-resistance multi-rotor unmanned aerial vehicle arm which comprises an arm body, the arm body is a prismoid with the outer contour of the cross section kept unchanged in the length direction, the cross section of the arm body in the length direction comprises an upper side line and a lower side line, and the upper side line and the lower side line are horizontal line segments which are parallel and arranged at the same length; the left side line and the right side line are arc lines which are parallel to each other and are perpendicular to the upper side line; according to the unmanned aerial vehicle, the maximum aerodynamic lift force is improved through the extrusion effect of the upper edge line of the cross section of the vehicle arm body and the blades, and the two arc lines which are parallel to each other and are perpendicular to the upper edge line form an inclination angle; airflow is guided to smoothly flow through the surfaces of the arms, resistance caused by vortex generated by the airflow is reduced, and the purposes of reducing the total aerodynamic resistance, improving the lift power ratio and further improving the flight performance of the unmanned aerial vehicle are achieved.

The invention relates to a frame extraction method and device, a vehicle and a readable storage medium, and is applied to the technical field of automatic driving. The method comprises the following steps: performing straight line detection on a target image to obtain a first straight line segment in the target image; determining a horizontal straight line segment and a vertical straight line segment in the first straight line segment based on the inclination angle of the first straight line segment; determining a horizontal straight line cluster corresponding to the horizontal straight line segment and a vertical straight line cluster corresponding to the vertical straight line segment; determining a first weight value of the horizontal straight line cluster and a second weight value of the vertical straight line cluster; according to the first weight value, determining a target horizontal straight line cluster corresponding to the target image, and according to the second weight value, determining a target vertical straight line cluster corresponding to the target image; and determining a frame of the target image based on the target horizontal straight line cluster and the target vertical straight line cluster. According to the embodiment of the invention, under the condition that the frame extraction accuracy is ensured, the computing resource overhead for frame extraction is reduced, and the frame extraction efficiency is improved.

An image processing method and apparatus and a device are provided, which relate to the field of image processing. After obtaining an image to be processed, a line segment to be corrected is obtained from the line segment included in the image to be processed by filtering based on at least one of IMU information and field of view included in the metadata. The image to be processed includes at least one of vertical line segments and horizontal line segments in a first scenario captured by a photographing device. The line segment to be corrected and the feature region of the image to be processed are corrected to obtain a processed image, and the feature region includes a background region, a portrait region and an edge region. Since the IMU information and field of view describe the characteristic information of the photographing device that captures the image to be processed, the line segment to be corrected can be accurately located based on the IMU information and field of view, and the line segment to be corrected and the feature region of the image to be processed are corrected so that the line segment in the processed image better follows the distribution characteristics of the horizontal line segment and the vertical line segment in the first scenario captured by the photographing device. This effectively improves the accuracy of correcting the tilt-shift distortion phenomenon of the image.

A test method for determining the shear softening constitutive relationship of a rock-concrete interface under compression-shear conditions. The specimen consists of a rock block and a concrete block, with initial cracks reserved at the upper and lower parts of the specimen interface. Starting from the tip of the initial crack, horizontal line segments are drawn at equal intervals on the rock surface along the Y direction, and strain gauges are arranged at equal intervals on each line segment. A clamp-on extensometer is arranged at the middle position of two adjacent line segments along the interface ligament. A uniformly distributed compressive stress perpendicular to the rock-concrete interface is applied along the X direction using load control, and a compressive load is applied to the concrete along the Y direction using a displacement control mode. The Y-direction strain and the interface sliding displacement are obtained by the strain gauge and the clamp-on extensometer respectively to derive the interface shear softening constitutive relationship. By using the method of the present invention, the shear softening constitutive relationship of the rock-concrete interface under compression-shear conditions can be accurately and conveniently determined by performing a compression-shear test. The present invention is also applicable to the determination of the shear softening constitutive relationship of the rock-concrete interface under tension-shear conditions.

Integrated circuitry comprising devices electrically coupled through a plurality of interconnect levels in which lines of a first and second interconnect level are coupled through a planar slab via. An interconnect line may include a horizontal line segment within one of the first or second interconnect levels, and the slab via may be a vertical line segment between the first and second interconnect levels. A planar slab via may comprise one or more layers of conductive material, which have been deposited upon a planarized substrate material that lacks any features that the conductive material must fill. A planar slab via may be subtractively defined concurrently with a horizontal line of one or both of the first or second interconnect levels.

The present invention relates to a method for generating an indoor floor plan based on an image and a computing device using same, and the method for generating an indoor floor plan based on an image, using a computing device, according to an embodiment of the present invention, may comprise the steps of: receiving an upper image obtained by capturing an upper area of a target space; performing image processing on each frame image included within the upper image, to extract a plurality of line segments included within the frame image; dividing the plurality of line segments into vertical line segments corresponding to the height direction of the target space and horizontal line segments corresponding to the breadth or width direction within the target space; extracting intersection points at which the horizontal line segments are orthogonal to one another, generating an outline shape connecting the intersection points, and detecting a unit space corresponding to the outline shape; from among a plurality of horizontal line segments included within the frame image, extracting a horizontal line segment generating intersection points with two vertical line segments, and detecting same as a passage; and generating an indoor floor plan for the target space by connecting respective unit spaces extracted from the upper image by means of the passage.

The invention relates to a text-oriented line segment detection method based on a UNet algorithm. The specific process is as follows: obtaining text image data with line segments; performing size normalization processing on the acquired image, performing manual annotation on the image by using an annotation tool label, obtaining a line segment position, expanding the line segment position into a rectangle with the width of two pixel points, obtaining coordinates of four points of the rectangle, performing binarization processing on the image, generating a binarization label image, and obtaining a target detection data set; positions of all line segments in the original image are marked in the binarized label image; constructing a line segment detection network model based on a UNet algorithm, training the line segment detection network model by using the target detection data set, predicting line segments in the text image by using the trained line segment detection network model, and outputting a model prediction map; and post-processing the model prediction map, extracting the positions of the transverse line segments, the longitudinal line segments and the oblique line segments in the text image, realizing detection of the line segments in the text image, and improving the detection precision of the text line segments.