7 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 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.