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US 12,551,755 B2Granted
Calculation device, calculation system, calculation method, and calculation program
AssigneeQoncept, Inc.
InventorsKenichi Hayashi, Shunsuke Nambu
Life of this patent
Estimating the term…
Abstract
A trajectory and a flight distance of a target moving body such as a ball hit by a golf club in an athletic competition such as a golf game may be calculated from the images having been taken. The calculation may be conducted from the pictures having been taken with a monocular camera of low resolution such as a smartphone. An initial velocity and a hitting angle of a target moving body such as a ball having been hit high by the golf club may be calculated.
Claims14
A calculation device of a motion of a target moving body, comprising:
- a detecting unit that detects an image of the target moving body from information of each of a plurality of image frames, in which the image of the target moving body is captured, the plurality of image frames being consecutively taken from above with a constant time interval with a monocular camera;
- a position calculating unit that calculates a three-dimensional position of the image from a two-dimensional position of the image in the each of the image frames and a three-dimensional position of an optical center of a lens of the monocular camera by approximating the motion of the target moving body as a uniform linear motion;
- an initial velocity calculating unit that calculates an initial velocity of the target moving body from the three-dimensional position of the image and the information of the image frames;
- and
- a hitting angle calculating unit that calculates a hitting angle of the target moving body from the three dimensional position of the image and the information of the image frames.
2 more elements
A calculation method of calculation of a motion of a target moving body, comprising the steps of:
- a detecting step of detecting an image of the target moving body from information of each of a plurality of image frames, in which the image of the target moving body is captured, the plurality of image frames being consecutively taken from above with a constant time interval with a monocular camera;
- a position calculating step of calculating a three-dimensional position of the image from a two-dimensional position of the image in the each of the image frames and a three-dimensional position of an optical center of a lens of the monocular camera by approximating the motion of the target moving body as a uniform linear motion;
- an initial velocity calculating step of calculating an initial velocity of the target moving body from the three-dimensional position of the image and the information of the image frames;
- and
- a hitting angle calculating step of calculating a hitting angle of the target moving body from the three-dimensional position of the image and the information of the image frames.
2 more elements
A calculation device that calculates an initial velocity and a hitting angle of a target moving body, comprising:
- a storage device capable of recording information;
- an input device capable of inputting information;
- a central processing unit capable of calculating based on information;
- an output device capable of outputting a calculation result;
- and
- a wired or wireless communication line capable of transferring information to each component thereof;
- wherein the central processing unit is operable to:
- cause the input device to input information of a plurality of image frames having the target moving body consecutively taken therein from above with a predetermined time interval with a monocular camera and being recorded, the monocular camera being arranged at a position fixed above over an initial position of the target moving body, the target moving body being placed at the initial position when being shot therefrom, and information of the initial position and the position of the monocular camera;
- cause the storage device to record the input information;
- detect an image of the target moving body in each of the plurality of image frames based on information stored in the storage device;
- calculate a three-dimensional position of the image of the target moving body from a two-dimensional position of the image in the each of the plurality of image frames and a three-dimensional position of an optical center of a lens of the monocular camera by approximating a motion of the target moving body as a uniform linear motion based on the information stored in the storage device;
- and
- calculate the initial velocity and the hitting angle of the target moving body from the calculated three-dimensional position of the target moving body.
10 more elements
Dependencies are inferred from the claim text.