WO2017008218A1 - Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis - Google Patents

Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis Download PDF

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Publication number
WO2017008218A1
WO2017008218A1 PCT/CN2015/083819 CN2015083819W WO2017008218A1 WO 2017008218 A1 WO2017008218 A1 WO 2017008218A1 CN 2015083819 W CN2015083819 W CN 2015083819W WO 2017008218 A1 WO2017008218 A1 WO 2017008218A1
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WO
WIPO (PCT)
Prior art keywords
axis
tennis
tennis ball
picture
coordinates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/083819
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English (en)
Chinese (zh)
Inventor
张阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/CN2015/083819 priority Critical patent/WO2017008218A1/fr
Publication of WO2017008218A1 publication Critical patent/WO2017008218A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/38—Training appliances or apparatus for special sports for tennis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities

Definitions

  • the present invention belongs to the field of sporting goods, and in particular relates to a method and system for eagle eye recognition in a tennis game.
  • An object of embodiments of the present invention is to provide a method for identifying an eagle eye in a tennis game, which aims to solve the problem of high cost of the prior art solution.
  • a method for eagle eye recognition in a tennis game comprising:
  • [0006] 102 positioning a picture of the tennis ball in the picture, projecting the tennis ball onto the X axis, the Y axis, and the Z axis;
  • the method provided by the present invention realizes the drawing of a tennis trajectory by a single high-speed camera, so that it has the advantage of low cost.
  • the implementation of the 102 is specifically:
  • a eagle eye recognition system for a tennis game comprising:
  • a photographing unit configured to periodically take a picture by a camera disposed at a corner of the field; the angle between the camera and each side is 45°;
  • a projection unit configured to position a picture of the tennis ball in the picture, project the tennis ball onto the X axis, the Y axis, and the Z axis;
  • a calculation unit configured to calculate the projection onto the X axis, the Y axis, and the Z axis Projection calculates the distance from the calibration line;
  • a coordinate unit for acquiring the three-axis coordinates of the tennis ball through the distance;
  • a drawing unit configured to repeat the above steps until the tennis coordinates of all the pictures are acquired, and the tennis track is drawn according to the tennis coordinates.
  • the projection unit is specifically configured to multiply a picture of the tennis ball by 0.707 to obtain a tennis picture projected by the tennis ball onto the X-axis, the Y-axis, and the Z-axis.
  • the technical solution provided by the present invention provides a new eagle eye recognition method, which can realize most functions of the current eagle eye by setting a few high-speed cameras, which effectively reduces the cost.
  • FIG. 1 is a flow chart of a method for identifying an eagle eye in a tennis match according to the present invention
  • FIG. 2 is a structural diagram of a eagle eye recognition system in a tennis match according to the present invention.
  • a specific embodiment of the present invention provides a method for identifying an eagle eye in a tennis game.
  • the method is as shown in FIG. 1 and includes:
  • [0026] 102 positioning a picture of the tennis ball in the picture, projecting the tennis ball onto the X axis, the Y axis, and the Z axis;
  • the method provided by the present invention acquires the coordinates of the tennis ball by taking a picture, and can acquire the coordinates of the tennis ball only by a single camera, so it has the advantage of low cost.
  • the implementation method of the foregoing 102 may specifically be:
  • Multiplying the picture of the tennis ball by 0.707 gives a picture of the tennis ball projected onto the X-axis, the Y-axis, and the Z-axis.
  • a specific embodiment of the present invention also provides a eagle eye recognition system in a tennis game, as shown in FIG. 2, the system includes:
  • the photographing unit 201 is configured to periodically take a picture by a camera disposed at a corner of the field; the angle between the camera and each side is 45°;
  • the projection unit 202 is configured to locate a picture of the tennis ball in the picture, and project the tennis ball onto the X axis, the Y axis, and the Z axis.
  • the calculating unit 203 is configured to calculate a distance between a projection calculation projected onto the X axis, the Y axis, and the Z axis and the calibration line
  • a coordinate unit 204 configured to acquire three-axis coordinates of the tennis ball by the distance
  • the drawing unit 205 is configured to repeat the above steps until the tennis coordinates of all the pictures are acquired, and the tennis track is drawn according to the coordinates of the net.
  • the projection unit 202 is specifically configured to multiply a picture of the tennis ball by 0.707 to obtain a tennis projection.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Analysis (AREA)

Abstract

L'invention concerne un procédé et un système d'identification Hawk-eye dans le cadre d'un match de tennis. Le procédé comprend les étapes consistant à : 101, capturer périodiquement des images par l'intermédiaire d'une caméra agencée au niveau d'un coin d'un terrain de jeu, les angles entre la caméra et chaque côté étant tous de 45°; 102, positionner des images d'une balle de tennis dans les images, projeter la balle de tennis sur l'axe X, l'axe Y et l'axe Z; 103, calculer la distance entre la projection de la balle de tennis sur l'axe X, l'axe Y et l'axe Z et une ligne de référence; 104, acquérir les coordonnées de la balle de tennis sur les trois axes sur la base de la distance; et 105, répéter les étapes ci-dessus jusqu'à ce que les coordonnées de la balle de tennis dans toutes les images soient acquises, et tracer la trajectoire de la balle de tennis sur la base des coordonnées de la balle de tennis. Le présent procédé d'identification a l'avantage d'être peu coûteux par rapport à un procédé appliqué actuellement dans lequel de multiples caméras sont utilisées pour déterminer la trajectoire d'une balle de tennis afin de déterminer si, oui ou non, celle-ci est tombée en dehors des limites du terrain ou a touché la ligne.
PCT/CN2015/083819 2015-07-10 2015-07-10 Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis Ceased WO2017008218A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/083819 WO2017008218A1 (fr) 2015-07-10 2015-07-10 Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/083819 WO2017008218A1 (fr) 2015-07-10 2015-07-10 Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis

Publications (1)

Publication Number Publication Date
WO2017008218A1 true WO2017008218A1 (fr) 2017-01-19

Family

ID=57756609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/083819 Ceased WO2017008218A1 (fr) 2015-07-10 2015-07-10 Procédé et système d'identification hawk-eye dans le cadre d'un match de tennis

Country Status (1)

Country Link
WO (1) WO2017008218A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020122115A1 (en) * 2000-12-29 2002-09-05 Miklos Harmath System and method for judging boundary lines
CN1824352A (zh) * 2005-02-27 2006-08-30 赵健 球类比赛中界外球的数字检测系统
EP2455911A1 (fr) * 2010-11-23 2012-05-23 Vicomtech-Visual Interaction and Communication Technologies Center Procédé de détection de point d'impact d'un ballon dans les événements sportifs
US8199199B1 (en) * 2007-08-15 2012-06-12 Yuriy Shlyak Method and system for real time judging boundary lines on tennis court
WO2014005561A1 (fr) * 2012-07-04 2014-01-09 Vach Radomir Équipement employant des caméras pour enregistrer et afficher l'impact de la balle près des limites de la zone de jeu
CN104984534A (zh) * 2015-07-10 2015-10-21 张阳 网球比赛中鹰眼识别方法及系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020122115A1 (en) * 2000-12-29 2002-09-05 Miklos Harmath System and method for judging boundary lines
CN1824352A (zh) * 2005-02-27 2006-08-30 赵健 球类比赛中界外球的数字检测系统
US8199199B1 (en) * 2007-08-15 2012-06-12 Yuriy Shlyak Method and system for real time judging boundary lines on tennis court
EP2455911A1 (fr) * 2010-11-23 2012-05-23 Vicomtech-Visual Interaction and Communication Technologies Center Procédé de détection de point d'impact d'un ballon dans les événements sportifs
WO2014005561A1 (fr) * 2012-07-04 2014-01-09 Vach Radomir Équipement employant des caméras pour enregistrer et afficher l'impact de la balle près des limites de la zone de jeu
CN104984534A (zh) * 2015-07-10 2015-10-21 张阳 网球比赛中鹰眼识别方法及系统

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