System for measuring, substantially instantaneously, the distance and trajectory traveled by a body in flight during sports competitions

• US 6,782,118 B2
• Filed: 12/20/2000
• Issued: 08/24/2004
• Est. Priority Date: 05/24/2000
• Status: Expired due to Fees

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Verga, Antonio
• Primary Examiner(s): Mehta, Bhavesh M.
• Assistant Examiner(s): DESIRE, GREGORY M
• Application Number:
  US09/742,555
• Publication Number:
  US 20010048754A1
• Time in Patent Office: 1,343 Days
• Field of Search: 382/103, 382/106-107, 473/190-199, 473/468, 348/135-142, 348/144, 356/3.13, 356/3.16, 356/4-6-
• US Class Current: 382/106
• CPC Class Codes: A63B 2024/0034 during flight
• CPC Class Codes: A63B 2220/806 Video cameras
• CPC Class Codes: A63B 2244/08 Jumping, vaulting
• CPC Class Codes: A63B 2244/15 Discus throwing
• CPC Class Codes: A63B 2244/16 Spear or javelin throwing
• CPC Class Codes: A63B 24/0021 Tracking a path or terminating locations
• CPC Class Codes: A63B 71/0605 Decision makers and devices using detection means facilitating arbitration
• CPC Class Codes: G01C 11/02 Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
• CPC Class Codes: G01C 22/00 Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers

Abstract

A system for measuring the distance traveled by bodies in flight during sports events, the bodies executing trajectories having a common predetermined take-off area, and a variable landing point within a landing surface. The system includes a fixed image acquisition device positioned at a predetermined distance from the take-off area for acquiring the image of the landing surface, a recorder for recording the landing surface image at least from the moment of initiation of the flight to completion of the flight, an identifying device for identifying a landing point of the body within the landing surface, and a calculating device for calculating the distance of the landing point from the take-off area.

Claims

1. A system for measuring the distance travelled by bodies in flight during sports events, the bodies executing trajectories having a common predetermined take-off area, and a variable landing point within a landing surface, the system comprising:

a fixed image acquisition device positioned at a predetermined distance from the take-off area for acquiring the image of the landing surface;

a recorder for recording the landing surface image at least from the moment of initiation of the flight to completion of the flight;

an identifying device for identifying a landing point of the body within the landing surface;

a calculating device for calculating the distance of the landing point from the take-off area;

an image processing device for receiving images from the recording device; and

a monitor for receiving images from the image processing device;

wherein the image processing device comprises an image converter;

wherein the microprocessor is in communication with the monitor and controls the monitor to display the image of the landing surface, and the landing point of the body within the landing surface acquired by the image acquisition device within a calculation area generated on the monitor by the microprocessor unit; and

wherein the microprocessor unit generates the calculation area comprising a matrix with at least parallel lines perpendicular to a longitudinal axis of the landing surface, an end line that lies on the monitor image in a position representing a predetermined distance from the take-off area, and a plurality of dividing lines separated from each other and the end line by a predetermined distance such that the distance between each portion of the landing area and the take-off area can be calculated.

2. A system as claimed in claim 1, wherein the identifying device comprises a cursor, and further comprising a control device for moving the cursor on the matrix displayed on the monitor to a near position on the landing point of the body, the microprocessor calculating the distance between the near position on the landing point and the end line to determine the distance travelled by the body.

3. A method for measuring the distance travelled by a body in flight during a sports competition, between a take-off area and a landing surface on which impact is made by the body at a landing point, comprising:

a) acquiring at least the image of the landing surface;

b) recording the acquired landing surface image starting at least from the moment in which the body commences flight;

c) representing the recorded landing surface image on a monitor as a still image;

d) enclosing the represented landing surface image on the monitor within a matrix;

e) defining a first distance from the take-off area to an end element of the matrix;

f) positioning a reference point on a landing point of the landing surface represented on the matrix;

g) calculating a second distance between the reference point and the end element and adding the second distance to the first distance to equal the distance travelled by the body in flight;

h) displaying the calculated distance travelled by the body in flight substantially immediately after the impact of the body on the landing surface.

4. A method as claimed in claim 3, comprising dividing the matrix into a plurality of defined dimension bands with end edges that are parallel to and a defined distance from the end element.

5. A method as claimed in claim 3, comprising acquiring and recording a plurality of separate image portions of the landing surface.

6. A method as claimed in claim 3, comprising acquiring and recording images of intermediate areas between the take-off area and the landing surface.