# US 10,375,288 B2 · Motion capture system

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- Number: US 10,375,288 B2
- Document ID: US10375288B2
- Status: Granted
- Kind: B2
- Application number: 15/580,438
- Filed: 2016-04-22
- Published: 2018-06-21
- Granted: 2019-08-06
- Earliest claimed: 2015-06-09
- Assignees: Oxford Metrics PLC
- Applicants: Oxford Metrics PLC
- Inventors: David Reynolds; Matthew Kingman; Ben Freeman; Shane Lowe; Paul Tate; Stephen Malton; Imogen Moorhouse
- Web page: https://patentgrep.com/patent/US10375288B2

## CPC

- H04N 23/66: Remote control of cameras or camera parts, e.g. by remote control devices
- H04N 5/2224: {related to virtual studio applications}
- H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
- H04N 23/62: Control of parameters via user interfaces
- H04N 23/63: by using electronic viewfinders
- H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Systems and methods for motion capture are disclosed. In one arrangement a plurality of cameras are provided and a processing unit is configured to perform processing using image data from each of the plurality of cameras. Each of the cameras comprises an accelerometer and the processing unit is configured to perform processing that is dependent on an output from the accelerometers. In another arrangement each of the cameras comprises a temperature sensor and the processing unit is configured to perform processing that is dependent on an output from the temperature sensors.

## Claims

### Claim 1

A motion capture system comprising:
a plurality of cameras; and
a processing unit configured to perform processing using image data from each of the plurality of cameras, wherein
each of the cameras comprises an accelerometer and the processing unit is configured to perform processing that is dependent on an output from the accelerometers;
wherein the processing unit is configured to perform a first direction-selected processing associated with a camera when a perturbation in the acceleration at the camera in a first direction is detected and to perform a second direction-selected processing associated with the camera when a perturbation in the acceleration at the camera in a second direction is detected, the first and second directions being different from each other, and the first and second direction-selected processings being different from each other.

### Claim 2 (depends on 1)

The system of claim 1, wherein the processing unit is configured to:
select one of the cameras based on an output from the accelerometer; and
perform a selected-camera processing which depends on which of the cameras has been selected.

### Claim 3 (depends on 2)

The system of claim 2, wherein the selected-camera processing comprises displaying data from the selected camera.

### Claim 4 (depends on 3)

The system of claim 3, wherein the selected-camera processing comprises displaying data from a plurality of the cameras and providing visual information indicating which of the displayed data corresponds to the selected camera.

### Claim 5 (depends on 3)

The system of claim 3, wherein the selected-camera processing comprises displaying data from the selected camera and not displaying data from any other camera.

### Claim 6 (depends on 2)

The system of claim 2, wherein the displayed data comprises image data captured by the selected camera.

### Claim 7 (depends on 2)

The system of claim 2, wherein the displayed data comprises configuration data of the selected camera.

### Claim 8 (depends on 2)

The system of claim 2, wherein the selected-camera processing comprises providing a selected-camera interface to a user that allows a user to control the selected camera.

### Claim 9 (depends on 8)

The system of claim 8, wherein the selected-camera interface allows control of a plurality of the cameras and provides a visual indication indicating which of the cameras is the selected camera.

### Claim 10 (depends on 8)

The system of claim 8, wherein the selected-camera interface allows control of the selected camera and no other camera.

### Claim 11 (depends on 2)

The system of claim 2, wherein the processing unit is configured to select one of the cameras in response to a perturbation in the output of the accelerometer from that camera that is larger than a predetermined threshold.

### Claim 12 (depends on 2)

The system of claim 2, wherein the processing unit is configured to select one of the cameras when an output of the accelerometer from that camera matches a predetermined signature output.

### Claim 13 (depends on 12)

The system of claim 12, where the predetermined signature output corresponds to an output consistent with a user tapping the camera with a finger.

### Claim 14 (depends on 12)

The system of claim 12, wherein the predetermined signature output corresponds to an output consistent with a user tapping the camera a predetermined multiplicity of times.

### Claim 15 (depends on 1)

The system of claim 1, wherein each of the cameras is a physically separate unit and is mountable independently of the other cameras.

### Claim 16 (depends on 1)

The system of claim 1, wherein the processing unit is provided in a portable computing device configured to communicate wirelessly with each of the cameras.

### Claim 17 (depends on 1)

The system of claim 1, wherein the processing unit is configured to detect a change in an orientation of any of the cameras based on an output from the accelerometers.

### Claim 18 (depends on 17)

The system of claim 17, wherein the detection of a change in an orientation of a camera is performed by detecting a change in the direction of gravity relative to that camera.

### Claim 19

A method of performing motion capture using a plurality of cameras, wherein each of the cameras comprises an accelerometer, the method comprising:
performing processing at a processing unit that is dependent on an output from the accelerometers,
wherein the processing unit is configured to perform a first direction-selected processing associated with a camera when a perturbation in the acceleration at the camera in a first direction is detected and to perform a second direction-selected processing associated with the camera when a perturbation in the acceleration at the camera in a second direction is detected, the first and second directions being different from each other, and the first and second direction-selected processings being different from each other.

### Claim 20 (depends on 19)

The method of claim 19, wherein the processing comprises detecting a change in an orientation of any of the cameras based on an output from the accelerometers.

### Claim 21 (depends on 20)

The method of claim 20, further comprising fixedly mounting each of the cameras so as to be directed towards a target scene and using the detected change in an orientation of a camera to detect a deviation in the mounting of the camera.
