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Game poker card recognition method based on pixel square difference matching

A recognition method and squared difference technology, applied in character and pattern recognition, image analysis, image data processing, etc., can solve problems such as shortening the recognition time, shorten the recognition time, solve the image rotation, and improve the accuracy rate. Effect

Active Publication Date: 2015-04-15
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical purpose of the present invention is to provide a game playing card recognition method based on pixel square difference matching, which can solve the problem of image rotation, simplify the database of templates, greatly improve the accuracy of recognition and shorten the time of recognition

Method used

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  • Game poker card recognition method based on pixel square difference matching
  • Game poker card recognition method based on pixel square difference matching
  • Game poker card recognition method based on pixel square difference matching

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] figure 1It is the flow chart of the entire recognition method, including image acquisition by camera, key position extraction of playing cards, selective grayscale processing of images, adaptive binarization processing, image inversion processing, image denoising processing, and extraction of target connectivity domain, find the minimum circumscribed connected domain of the connected domain, perform nearest neighbor interpolation scaling and mapping on the image, and finally perform pixel square difference template matching to obtain the point matching result and suit result.

[0034] Step (1): Extract the target photo from the camera

[0035] The specific operation process is that when the fully automatic card dealing machine deals cards, each time a card is dealt, the camera needs to be triggered once to capture, so ...

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Abstract

The invention discloses a game poker card recognition method based on pixel square difference matching. The game poker card recognition method includes collecting images through a camera; extracting key positions of poker cards; performing selective gray processing on the images; performing self-adaptive binary processing; negating the images; denoising the images; extracting a target connected domain; finding minimum circumscribed matrix of the connected domain; subjecting the images to nearest neighbor interpolation scaling and rotating mapping; performing pixel square difference template matching to acquire point number matching result and pattern color matching result. The problem of image rotatability is solved through feature extraction and related processing work before matching; a single template method is adopted, so that a database of templates is simplified; only 13 times of point number template matching and 4 times of pattern color matching are performed for each poker card, so that recognition accuracy is improved greatly while recognition time is reduced.

Description

technical field [0001] The invention relates to technical fields such as image processing, pattern recognition, and data processing, and in particular to a poker recognition method based on pixel square difference matching. Background technique [0002] Poker is a very popular entertainment tool, because of its many ways of playing, it has a large number of poker fans. Thanks to online platforms provided by game companies such as Tencent, poker has become a popular online gaming tool. Although online poker has a large number of online card fans, there is still a lack of accurate and real-time identification of virtual poker and a method for identifying physical poker at the same time. Both physical games and online games pay more attention to the efficiency of recognition. It is necessary to recognize the suit and point size of all cards on the game screen or at the moment of physical card distribution. This is a key component of the entire online game system or modern ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/00
Inventor 王雅琳崇庆魏刘奇陈冬冬何海明卢青谢永芳
Owner CENT SOUTH UNIV
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