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Badminton track analysis method and system based on immersion

A trajectory analysis and badminton technology, applied in the field of badminton trajectory analysis based on immersion, can solve the problems of not taking into account the situation of the first person, increasing the risk of user fatigue, etc., to reduce the selection steps, easy to understand and master, Enhance the effect of immersion

Pending Publication Date: 2020-11-17
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But multi-step selection will increase the risk of user fatigue in virtual reality
At the same time, most of these methods do not take into account the situation of the first person
In this case, viewing different angles of the trajectory (and thus filtering from different parts) needs to be done by the user's actual physical movement, so selection in the first person requires more user burden than in the case of free rotation and scaling of the trajectory space

Method used

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  • Badminton track analysis method and system based on immersion
  • Badminton track analysis method and system based on immersion
  • Badminton track analysis method and system based on immersion

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Experimental program
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Embodiment

[0052] see figure 1 , in the present embodiment, the method for analyzing badminton trajectory based on immersion includes the following steps:

[0053] S100, the user first puts on the virtual reality equipment, including the head-mounted display and the handle, and selects the hitting technique to be analyzed from the menu, such as picking the ball or smashing the ball, as the object of exploration.

[0054] The badminton trajectory data includes the position of both players at each shot, the position and initial velocity vector of the shot, the technique of the shot, the result after the shot (continuation, victory, and failure), and the ball's position between two shots. The three-dimensional space position of the flight path. The object of analysis in this embodiment is the trajectory of badminton hitting. Each track as image 3 As shown, it contains a ball trajectory and two player trajectories.

[0055] In this embodiment, the user selects a technology to be analyz...

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Abstract

The invention relates to a badminton track analysis method and system based on immersion, and belongs to the technical field of visualization and visual analysis. The method comprises the following steps: 1) a user wears a virtual reality device including a head-mounted display and a handle, and selects a to-be-analyzed ball hitting technology; 2) all tracks belonging to the selected ball hittingtechnology are clustered to form a plurality of class clusters; 3) the user performs trajectory overview on a plurality of class clusters of the selected ball hitting technology, selects a certain class cluster, and removes outlier trajectories or trajectories which are not expected to be analyzed in the class cluster to obtain a to-be-analyzed class cluster; and 4) the relationship between the attribute of the key point of each trajectory k in the same to-be-analyzed class cluster and the statistical characteristics is explored, or attributes between the trajectories in the two classes of clusters are compared.

Description

technical field [0001] The present invention relates to the technical field of visualization and visual analysis, in particular to an immersive badminton trajectory analysis method and system. Background technique [0002] Trajectory analysis is an important research content in the field of sports data analysis, and it is widely used in football, tennis and table tennis. In the field of badminton, experts usually need to analyze the badminton trajectory from a real three-dimensional perspective, because the three-dimensional shape of the trajectory has a non-negligible impact on the quality of the ball and the success of tactics. Existing trajectory analysis mainly adopts the methods of dimensionality reduction and multi-cooperative views, and displays each attribute value of the trajectory on a two-dimensional screen in the form of a traditional chart. [0003] However, these charts representing low-dimensional data relationships are separated from the two-dimensional vide...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V20/48G06V20/41G06V20/52G06N3/045G06F18/214
Inventor 巫英才叶帅男
Owner ZHEJIANG UNIV