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Broken line graph broken line segmentation method and device

A line chart and legend technology, applied in the field of data processing, to achieve the effect of good segmentation results and short program running time

Active Publication Date: 2018-08-31
ABC FINTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional edge detection or line segment detection methods are often restricted by many factors, such as image noise, sharpness, etc. If there are very complex and intersecting broken lines, it is difficult to segment the ideal result using the above method

Method used

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  • Broken line graph broken line segmentation method and device
  • Broken line graph broken line segmentation method and device
  • Broken line graph broken line segmentation method and device

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1a , the line segmentation method...

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Abstract

The invention relates to a broken line graph broken line segmentation method and device; the method comprises the following steps: c, converting a RGB color model of a broken line graph of N detectedlegends into a LAB space model, respectively obtaining a LAB value of each legend in the broken line graph and a LAB value of each pixel in the broken line graph; d, carrying out Euclidean distance calculation for the LAB value of each legend in the broken line graph and the LAB value of each pixel in the broken line graph, thus forming N aberration distribution maps, wherein one legend is matchedwith one aberration distribution map ; finding the minimum value in each aberration distribution map, setting a segmentation threshold according to the minimum value, and segmenting a rough broken line corresponding to the aberration distribution map in the aberration distribution map according to the segmentation threshold. The method and device can provide a simple and effective solution for the broken line segmentation problem, thus using the shortest program operation time to realize the best effect of a segmentation result.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method and device for dividing a line in a line graph. Background technique [0002] A line chart is one of the types of chart images. The image is mainly composed of horizontal and vertical coordinate axes (including scale values), title, legend, legend annotation, and line data. The analysis of the polyline image is mainly to achieve: effectively restore all the data information in the original image, quantify each data point of the polyline at the same time, and at the same time correspond to the scale of the parsed horizontal and vertical coordinate axes. Ultimately, the viewer can browse and consult the relevant data reflected by the broken line more clearly and accurately by restoring and quantifying the data from the broken line chart. [0003] Usually, the methods used for line segment detection mainly include gradient detection based on edges, such as Laplace,...

Claims

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Application Information

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IPC IPC(8): G06T7/136G06T7/90G06N3/04G06N3/08G06V10/56
CPCG06N3/084G06T7/136G06T7/90G06T2207/20156G06T2207/20081G06T2207/20084G06T2207/10024G06V2201/07G06N3/045G06V30/422G06V10/56G06V30/414
Inventor 余宙杨永智陈晨
Owner ABC FINTECH CO LTD
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