Cooperative construction method for enhancing realistic table-tennis system based on real rackets

A technology of augmented reality and construction methods, applied in mechanical mode conversion, input/output of user/computer interaction, television, etc., can solve the problems of not being able to experience the feeling of playing, and users not being able to see distant relatives and friends, etc., to achieve good results Immersion and experience, improve readability and reusability, and ensure the effect of system operation

Inactive Publication Date: 2010-11-24
BEIHANG UNIV
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Problems solved by technology

In 2004, researchers at the Finnish VTT Technology Research Center used collaborative augmented reality technology to simulate table tennis sports. This system enables users who use real table tennis rackets to face the camera and play cooperatively with users in different places connected through the network. However, the system is still Artificial markers need to be

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  • Cooperative construction method for enhancing realistic table-tennis system based on real rackets
  • Cooperative construction method for enhancing realistic table-tennis system based on real rackets
  • Cooperative construction method for enhancing realistic table-tennis system based on real rackets

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the drawings.

[0024] Refer to figure 1 The overall architecture diagram of the system of the present invention. The overall architecture of the present invention mainly includes 9 parts: (1) Video capture, capturing local video data, which is used to track and register real table tennis rackets and send them to other users for display; (2) Rackets Tracking and registration, the racket is the only tool for human-computer interaction in the system, so the accuracy of the tracking and registration of the racket is very important. The main purpose of racket registration is to place the real racket, the virtual table and the virtual ball in the same coordinate system, and detect the interaction between the virtual ball and the racket in the coordinate system with the center of the virtual table as the origin of the world coordinate system; (3) Virtual table tennis collision detection and trajectory ca...

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Abstract

The invention relates to a cooperative construction method for enhancing a realistic table-tennis system based on real rackets. The method comprises the following steps of: detecting and tracking a real table-tennis racket by utilizing the color characteristics according to a video image acquired by the system; designing and realizing the virtual-real three-dimensional registration of a virtual scene and a real scene, mapping the virtual scene to a video image coordinate system of the real rackets, participator users and real environment; designing and realizing the collision detection between a virtual table-tennis ball and objects, such as the real rackets, a virtual table-tennis table, a virtual table-tennis net, and the like according to the motion information of the real rackets and confirming and representing the motion trajectory of the virtual table-tennis ball after collision; and providing a finite state machine and a message-processing mechanism, controlling the conversion of various states of the table-tennis system in the operation process and ensuring a plurality of users to have the same table-tennis motion experience. The cooperative construction method can be widely applied to the fields, such as interactive digital entertainment, sports research, training simulation, remote education and training, and the like.

Description

Technical field [0001] The invention relates to the fields of virtual reality, augmented reality and computer graphics, in particular to a method for constructing a cooperative augmented reality table tennis system based on a real racket. Background technique [0002] Augmented Reality (AR) is a further expansion of virtual reality. It uses necessary equipment to make computer-generated virtual objects (Virtual Object, VO) coexist with the objective real environment (Real Environment, RE). In the augmented reality system, the user is presented with an augmented reality environment in which virtual objects and the real environment are integrated from the senses and experience effects. Augmented reality has the basic characteristics of virtual and real combination, real-time interaction, and three-dimensional registration. [0003] Collaborative Augmented Reality (CAR) technology is a combination of augmented reality technology and network technology. It is an important part of augme...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06F19/00H04N7/26
Inventor 陈小武李鑫颜勇赵沁平
Owner BEIHANG UNIV
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