Ball trajectory measuring apparatus
First Claim
1. A ball trajectory measuring apparatus comprising:
- a first camera for photographing a flying ball from a back part;
a second camera having an angle of view related to that of the first camera and serving to photograph the ball from the back part later than the first camera;
a third camera for photographing the ball from a front part;
a control portion for controlling photographing timings of the first, second and third cameras; and
a calculating portion for calculating position coordinates of the ball based on image data obtained by the first, second and third cameras, and position coordinates, directions of optical axes and angles of view of the respective cameras.
3 Assignments
0 Petitions
Accused Products
Abstract
A first camera (1) is provided behind a launch point (Ps), a second camera (2) is provided between the launch point (Ps) and a drop point (Pe), and a third camera (3) is provided before the drop point (Pe). The first camera (1) and the second camera (2) photograph a golf ball (G) from a back part. The third camera (3) photographs the golf ball (G) from a front part. First of all, the golf ball (G) is photographed by the first camera (1) and the third camera (3). The photographing of the first camera (1) is relayed to the second camera (2). Then, the golf ball (G) is photographed by the second camera (2) and the third camera (3). The angle of view of the first camera (1) is related to that of the second camera (2). Based on image data which are obtained by cameras, a coordinate position (x, z) of the golf ball (G) is calculated by a triangulation method.
30 Citations
6 Claims
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1. A ball trajectory measuring apparatus comprising:
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a first camera for photographing a flying ball from a back part;
a second camera having an angle of view related to that of the first camera and serving to photograph the ball from the back part later than the first camera;
a third camera for photographing the ball from a front part;
a control portion for controlling photographing timings of the first, second and third cameras; and
a calculating portion for calculating position coordinates of the ball based on image data obtained by the first, second and third cameras, and position coordinates, directions of optical axes and angles of view of the respective cameras. - View Dependent Claims (2, 3)
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4. A ball trajectory measuring apparatus comprising:
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a first camera for photographing a flying ball from a front part;
a second camera having an angle of view related to that of the first camera and serving to photograph the ball from the front part earlier than the first camera;
a third camera for photographing the ball from a back part;
a control portion for controlling photographing timings of the first, second and third cameras; and
a calculating portion for calculating position coordinates of the ball based on image data obtained by the first, second and third cameras, and position coordinates, directions of optical axes and angles of view of the respective cameras. - View Dependent Claims (5, 6)
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Specification