Three-dimensional Image Analysis Of The Effect Of Sphere Speed And Landing Point On The Final Round Of Table Tennis Match

In this paper, three-dimensional sphere trajectory reconstruction system analysis efficiency, ease, convenience features, a single camera at a fixed mark for on-site analysis of table tennis ball flight speed to provide support and placement and new techniques and tactics. Select the 2014 ITTF World Tour Chengdu Open in26 games(12 games men's singles matches, 14 games the women's singles competition) as subjects, the use of race in the final round Players shoot the ball flight speed and placement as the study objects, in order to better and faster on the track to improve the technical and tactical allocation and implementation carried the ball flight speed and placement of statistical analysis. In this paper, literature, video analysis,mathematical statistics and so on ball speed flight characteristics of male and female athletes of the same ball placement and speed of the ball flight characteristics of the final shot technology, sportsmen and women near net area, the region, the bottom line Final shot the ball flight and ball flight speed is the same ball speed area placement with male and female athletes lose points stations of unforced errors comparative differences were analyzed. By analyzing the inquiry, we draw the conclusions are as follows:1.By using a single camera at the venue to mark the next game, using three-dimensional reconstruction of the system to track the ball more accurate test of the athletes in each round cricket ball flying horizontal velocity, can be very good for the coaches and spot athletes feedback to provide the necessary technical and tactical response in the game quickly.2.Male and female athletes in table tennis ball flight speed characteristics of the game balls are low(less than 7 m / sec) and the speed of the ball(less than 15 m / sec) based,and more than 15 m / sec high-speed ball accounted for very few, showing the athletes in fierce competition will not let opponents have too much opportunity to pick smash and fight to increase ball speed and get round victory.3.Different regions, and the final placement of the ball shot technique, its flight speed and placement of the ball will play a different score results.4.Near net area mostly serve, put a short technical implementation of effective regional, athletes must control the ball speed, placement and body movements to make the round more threatening attack. While the district more to push and pull, pick hit, smash other strong offensive technology-based, the first element is to score the ball flying faster, so the ball back to the athlete in a passive state. In addition, the characteristics of the end zone is the placement tricky, arc length and low ball flight,most athletes can greatly improve hitting power, the ball is too fast causing opponents by surprise, to its winning effect.5. 1- backhand mostly because men athletes fierce fight in the game, the initiative seeks to gain the upper hand, sought to suppress the other and different placement plus a faster flight speed and force the other sphere unnecessary mistakes. 2- middle man by the power quality are superior athletes and female athletes in the race pitch and speed changes are more gradual and female athletes kept in a state of stalemate differences related.6. Since the placement of the ball and the ball fly faster mobilization, losing athletes station 1-backhand, ball female athletes average speed faster because the two sides locked in a stalemate plate number more, and about the mobilization of nearly table converted into the main sphere flight distance is short, low arc and speed.