A board positioning method for Go automatic notation based on video recognition technology

A technology of video recognition and positioning method, which is applied in board games, character and pattern recognition, sports accessories, etc. It can solve the problems of huge cost of manual recording of chess records and no one to record chess records, so as to simplify image processing and remove image interference Effect

CN107358221BActive Publication Date: 2020-10-09LIAONING ZHONGXIN AUTOMATIC CONTROL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-10-09

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Abstract

The invention provides a chessboard positioning method based on video recognition technology for automatic Go notation, which is a chessboard positioning method included in the image recognition-based Go notation processing method, and the chessboard positioning method is based on four corner positioning marks. The glyph icon is a positioning mark, and the specific coordinates of 361 points in the chessboard are calculated according to the positions of the four corners of the chessboard and the horizontal and vertical spacing standards of the chessboard. Arranging back-shaped icons at the four corners of the chessboard as the image recognition control points for chessboard positioning can calculate the specific coordinates of 361 points in the chessboard according to the four corners of the chessboard, and can effectively remove irrelevant image interference around the chessboard, greatly simplifying the image processing.
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Description

technical field

[0001] The invention relates to the technical field of Go automatic notation methods, in particular to a chessboard positioning method for assisting Go notation based on video recognition technology. Background technique

[0002] Go, originated in China, is a strategic chess game for two players. It was called "Yi" in ancient China and "Go" in the West. It can be said to be the originator of chess. It has a history of more than 4,000 years. Go, popular in East Asian countries (China, Japan, Korea, and North Korea), is one of the four arts of piano, chess, calligraphy and painting. It is said that it was written by Emperor Yao, and it was recorded in the Spring and Autumn Period and the Warring States Period. During the Sui and Tang Dynasties, it was introduced to Japan via Korea, and spread to European and American countries. Go contains rich connotations of Chinese culture and is the embodiment of Chinese culture and civilization.

[0003] Go uses a squar...

Examples

specific Embodiment 1

[0043] Specific embodiment 1: a kind of Go automatic notation method based on video recognition technology, comprises following general steps:

[0044] Step 1. Initialization. First, obtain an original image including the entire blank chessboard and additional four-corner positioning marks through the camera as the original frame; the difference between the initialization frame and the previous frame is 0, and the reference frame is the original frame;

[0045] Step 2, chessboard positioning, adopting the four-corner positioning method of the back-shaped positioning mark, carrying out chessboard positioning to the original frame, obtaining the specific position coordinates of 361 points of the Go chessboard in the image;

[0046] Step 3, frame calculation, take out the video captured by the camera at a rate of 10 frames per second, and perform image processing one by one, and use the matrix method to judge the frame difference to judge the change state of the checkerboard point...