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Method and system for quickly identifying and counting votes on the basis of layout analysis

A statistical method and layout analysis technology, applied in character and pattern recognition, calculation, computer parts, etc., can solve problems such as poor applicability, low work efficiency, and low accuracy

Inactive Publication Date: 2010-12-08
ZHEJIANG UNIV OF TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] In order to overcome the disadvantages of poor applicability, low accuracy, and low work efficiency of the existing ballot identification and statistics methods and systems, the present invention provides a rapid identification and statistics of ballots based on layout analysis with strong applicability, high accuracy, and improved work efficiency. method and system

Method used

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  • Method and system for quickly identifying and counting votes on the basis of layout analysis
  • Method and system for quickly identifying and counting votes on the basis of layout analysis
  • Method and system for quickly identifying and counting votes on the basis of layout analysis

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Embodiment 1

[0069] refer to Figure 1 ~ Figure 3 , a method for rapid identification and statistics of ballots based on layout analysis, the method for rapid identification and statistics of ballots comprises the following steps:

[0070] (1) Scan the ballot into a ballot image;

[0071] (2), the ballot image is preprocessed, first the ballot image is converted into a binary image, and then smoothed and thinned; and the predefined semantics of the voting symbols are established, and the voting symbols include ticks, crosses and circles, According to the analysis of image shape features, the vertical line feature is used to distinguish hooks, circles, and forks, and the local direction features of contours are used to distinguish circles and forks;

[0072] (3) Enhance the preprocessed ballot image, select effective sub-regions, detect the edge line of the form, extract the edge points of the form line to establish an edge point set, and establish a local slope feature set for each edge p...

Embodiment 2

[0153] refer to Figure 1-Figure 3 , a ballot rapid identification and statistics system based on layout analysis, including: an image acquisition module, used to scan the ballot into a ballot image; an image preprocessing and pre-defined semantic module, used to preprocess the ballot image, firstly, the ballot image Convert it into a binary image, and then perform smoothing and thinning processing; and establish the predefined semantics of voting symbols, which include ticks, crosses and circles. According to the analysis of image shape features, vertical line features are used to distinguish ticks and circles, Fork, the circle and fork are distinguished by the local direction feature of the contour; the image tilt correction module is used to enhance the preprocessed ballot image, select effective sub-regions, detect the edge line of the table, and extract the edge points of the table line to establish the edge point set, and establish a local slope feature set for each edge...

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Abstract

The invention provides a method for quickly identifying and counting votes on the basis of layout analysis. The format of vote can be self-defined by electoral units; images of votes are collected by a high-speed scanner; furthermore, a semantic database is established for key symbols such as tick, fork, ring or filling-typed small diamonds; comprehension capability of computer on the vote imagesis enhanced by the mapping between the symbol data and the semanteme. The method comprises the steps (1) the votes are scanned as vote images; (2) the vote images are pre-processed and pre-defined semantic database of the vote symbols is proposed; (3) inclination correction of the vote images are corrected; (4) table line is detected and extracted; (5) symbols are detected and extracted; (6) symbols are recognized; (7) the recognized structure is memorized in the database. The invention also provides a system for quickly identifying and counting votes on the basis of layout analysis. The method and the system have strong adaptability, high exactness and improve the working efficiency.

Description

technical field [0001] The invention relates to a method and system for quickly identifying and counting votes. Background technique [0002] Election is an important and widely used means of embodying democracy in human society. With the improvement of democratic system, democratic election has attracted more and more attention. Through elections, voters can produce recognized candidates according to their wishes. [0003] Most of the ballots currently used in elections are tabular, and the understanding of their layout is one of the typical applications of pattern recognition and image processing. Scholars at home and abroad have carried out a lot of research work around related key technologies; With the advancement of social civilization, the election model has also been highly developed as one of the ways to embody the democratic system. A series of technical research around the election method aims to ensure the greatest degree of fairness, justice and efficiency. Wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/60G06K9/46
Inventor 肖刚陆佳炜陈久军高飞张元鸣沈军强刘海萍
Owner ZHEJIANG UNIV OF TECH
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