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In tennis, the server has two chances to hit a serve into the service box; in badminton, the server is allowed only one attempt. A tennis court is approximately twice the length and width of a badminton court. Tennis racquets are about four times as heavy as badminton racquets, 10 to 12 ounces (280 to 340 grams) versus 2 to 3 ounces (57 to 85 ...
Video Data Analysis (VDA) is a curated multi-disciplinary collection of tools, techniques, and quality criteria intended for analyzing the content of visuals to study driving dynamics of social behavior and events in real-life settings. It often uses visual data in combination with other data types.
Video content analysis is a subset of computer vision and thereby of artificial intelligence. Two major academic benchmark initiatives are TRECVID , [ 23 ] which uses a small portion of i-LIDS video footage, and the PETS Benchmark Data. [ 24 ]
It is also used as part of a larger tennis simulation implemented by IBM called PointTracker. The 2006 Hopman Cup in Perth, Western Australia, was the first elite-level tennis tournament where players were allowed to challenge point-ending line calls, which were then reviewed by the referees using Hawk-Eye technology. It used 10 cameras feeding ...
The underhand serve is struck below shoulder level. In the early days of tennis the underhand serve was the standard serve method, merely intended to start the game. [16] In children's tennis, young children may be encouraged to use the underhand serve on 36 feet (11 m) courts.
A serve (or, more formally, a service) in tennis is a shot to begin the point. The most common serve is used is an overhead serve.It is initiated by tossing the ball into the air over the server's head and hitting it when the arm is fully stretched out (usually near the apex of its trajectory) into the diagonally opposite service box without touching the net.
The 1972 Summer Olympics saw the inaugural staging of badminton, as a demonstration sport.Two decades later, after a successful exhibition at the 1988 games, the sport was officially introduced to the Olympics in 1989, and debuted in competition at the 1992 Games where 4 events were held, with singles and doubles events for both men and women.
The tennis racket theorem or intermediate axis theorem, is a kinetic phenomenon of classical mechanics which describes the movement of a rigid body with three distinct principal moments of inertia. It has also been dubbed the Dzhanibekov effect , after Soviet cosmonaut Vladimir Dzhanibekov , who noticed one of the theorem's logical consequences ...