GB2539387A - Motion capture system - Google Patents
Motion capture system Download PDFInfo
- Publication number
- GB2539387A GB2539387A GB1509993.0A GB201509993A GB2539387A GB 2539387 A GB2539387 A GB 2539387A GB 201509993 A GB201509993 A GB 201509993A GB 2539387 A GB2539387 A GB 2539387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- camera
- cameras
- output
- processing
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2224—Studio circuitry; Studio devices; Studio equipment related to virtual studio applications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/292—Multi-camera tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
Motion capture system and method comprising a plurality of cameras and image processor using image data from each camera, wherein each camera comprises an accelerometer with processing dependent on an output from accelerometers. In another arrangement each of the cameras comprises a temperature sensor with processing dependent on temperature sensor output. One of the cameras may be selected based accelerometer output with processing dependent on which camera is selected. Image data, configuration data and a visual indication of camera selection may be displayed on a user interface. Cameras may be selected in response to a perturbation in camera motion sensor output when larger than a threshold, with different processing performed depending on the direction of the perturbation. Cameras may be selected when accelerometer output matches a signature output such as a user finger tap. Multiple finger tapping may be required. Cameras may be physically separate and mounted independently with wireless communication. Accelerometer output may be used to detect change in camera orientation by detecting change in the direction of gravity relative to camera body. MoCap cameras with built-in accelerometers and/or temperature sensors helps to reduce the time-consuming motion capture setup and calibration procedures.
Description
MOTION CAPTURE SYSTEM
The present invention relates to a motion capture system and a method of performing motion capture, in which a plurality of cameras are each provided with an accelerometer and/or a temperature sensor.
A motion capture system typically comprises a plurality of cameras configured to monitor a target region in which the movements of a target, for example an actor, are to be captured. The captured movements may be used to animate a digital character in a film or computer game based on the actor's movements, for example. Typically, in such systems each of the cameras will need to be mounted at separate locations and directed towards the target region. The cameras will also need to be calibrated and connected to a processing unit such as a desktop or laptop computer, or a tablet. Setting up such motion capture systems can be time consuming, requiring for example multiple return trips for an operator between the processing unit and each of the cameras and/or the involvement of multiple people. For example, one person might interact directly with the processing unit while one or more other people may move around the room individually adjusting and checking each of the cameras while communicating with the person at the processing unit. The person at the processing unit may provide feedback to the moving operator about the image being captured by each of the cameras, as the moving operator moves from one camera to the next.
Motion capture systems may be sensitive to environmental conditions and to disturbances. For example, deviations in the quality of a camera mounting (e.g. due to knocks, thermal expansion/contraction, bending, etc.) may cause the position or orientation of the camera to change over time. This can have a negative impact on the motion capture process and/or require frequent and time consuming recalibrations.
A further challenge with existing systems is that temperature variations within the cameras themselves may alter the performance of the cameras, for example by causing differences in the optical path from a lens through to an imager of the camera. These effects can be mitigated in some circumstances by calibrating the cameras after the temperature has reached a steady state. However, judging when to perform such calibration is difficult. Users may be advised to wait a predetermined period after start up of the system before performing camera calibration and beginning use of the system. However, this can cause inconvenient delay. Furthermore, such an approach is not effective where a steady state temperature is not reached reproducibly or where the temperature varies during use of the system, for example due to variations in the activity of individual cameras or in the temperature of the surrounding environment.
It is an object of the invention to provide a motion capture system and method that at least partially address one or more of the challenges discussed above.
According to an aspect of the invention, there is provided 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.
Thus, a system is provided in which individual cameras can respond to output from an accelerometer provided in each camera. This capability enhances flexibility in how the motion capture system can be set up and maintained, facilitating in particular procedures which involve close proximity of a user with individual cameras. For example, the system can be configured to use the accelerometer outputs to allow a user to select individual cameras by causing perturbations in the accelerometer outputs, e.g. by tapping or double tapping a camera. The accelerometers may alternatively or additionally be used to detect unwanted deviations in the orientation of cameras, thereby to prompt investigatory action and/or recalibration procedures.
According to an aspect of the invention, there is provided 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 a temperature sensor and the processing unit is configured to perform processing that is dependent on an output from the temperature sensors.
Thus, a system is provided in which individual cameras can respond to variations in a temperature of each camera. This capability facilitates detection of when a steady state temperature has been reached after a powering on of the camera, making it possible for calibration procedures to be started more reliably in the steady state regime, and potentially earlier than would be possible using other approaches. The capability also makes it possible to respond to variations in temperature that may occur at times other than shortly after powering on, for example due to changes in the environmental temperature.
According to an alternative aspect of the invention, there is provided 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.
According to an alternative aspect of the invention, there is provided a method of performing motion capture using a plurality of cameras, wherein each of the cameras comprises a temperature sensor, the method comprising: performing processing at a processing unit that is dependent on an output from the temperature sensor.
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which corresponding reference symbols indicate corresponding parts, and in which: Figure 1 depicts a motion capture system; Figure 2 depicts a top view of a plurality of cameras of a motion capture system directed towards a target region; and Figure 3 is a schematic side view of a single one of the plurality of cameras of Figure 2.
in an embodiment, an example of which is shown in Figures 1-3, there is provided a motion capture system 2 comprising a plurality of cameras 4. A processing unit 6 is configured to perform processing using image data received from each of the plurality of cameras 4. The processing may comprise processing associated with performing motion capture for example. in this context, motion capture is understood to encompass at least any process or technique of recording patterns of movement digitally, for example for recording of an actor's movements for the purpose of animating a digital character in a film or computer game. Optionally, one or more of the plurality of cameras 4 may be configured to perform processing that contributes to the motion capture procedure. For example a camera may pre-process image data captured by the camera before sending data to the processing unit. The processing unit 6 may take various forms. For example, the processing unit 6 may comprise a computer (e.g. a desktop or laptop PC), a tablet computer, a smart telephone, or any combination of these in communication with each other. The processing unit 6 may comprise a display 8. The processing unit 6 may further comprise processing hardware 10 (e.g. CPU, memory, etc.), and an interface 12 allowing a user to interact with the processing unit 6. The interface may comprise a touch screen, keyboard, mouse, or other input device.
In an embodiment each of the cameras 4 comprises an accelerometer 22. An example of such a camera is shown in Figure 3. in embodiments of this type the processing unit 6 is configured to perform processing that is dependent on an output from the accelerometers 22.
In an embodiment the processing unit 6 is configured to select one of the cameras 4 based on an output from the accelerometer 22 of that camera. The processing unit 6 is further configured to perform a selected-camera processing which depends on which of the cameras 4 has been selected. The selected-camera processing may comprise various different functionalities associated with the selected camera. In an embodiment, the selected-camera processing comprises displaying data, for example on the display 8, from the selected camera 4. This functionality therefore makes it possible for a user to view data associated with a particular camera merely by causing an output from the accelerometer to vary in a particular way (e.g. by tapping or otherwise manipulating the camera 4).
In an embodiment, 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. For example, the processing unit 6 may be configured to display image data captured by more than one of the cameras 4 in a corresponding plurality of different windows in the display 8. The selected camera may be indicated by highlighting the window corresponding to the selected camera, or by bringing the window to the front relative to other windows, for example.
Alternatively or additionally, the selected-camera processing may comprise displaying data from the selected camera and not displaying data from any other camera. In this way, manipulation of the camera to cause a characteristic change in the output from the accelerometer 22 in that camera can be used to cause the display 8 to switch between displaying data from different cameras.
The above-described functionality may be particularly convenient in the case where the processing unit 6 comprises a portable unit, such as a laptop or tablet. In this case, a user can carry the portable unit from one camera 4 to another camera 4 in the system and conveniently select to view data associated with a camera that he is currently next to merely by causing the output from the accelerometer to change (e.g. by tapping the camera 4). This functionality avoids the user having to manually interact with the portable unit itself in order to select a camera. This approach may save considerable time and effort, particularly in the case where many different cameras 4 are provided.
in an embodiment, the displayed data of the selected-camera processing comprises image data captured by the selected camera 4. Alternatively or additionally, the displayed data comprises configuration data of the selected camera. The configuration data may comprise any operating parameters or other parameters of the camera 4. In an embodiment, the selected-camera processing comprises providing a selected camera interface, for example as part of the display 8, for example a touch screen active part of the display 12, which allows a user to control the selected camera 4. Thus, by tapping or otherwise manipulating the camera 4 to provide a change in the output from the accelerometer 22, the user is able conveniently to bring up an interface which allows him to control the selected camera 4 via the processing unit 6 (e.g. laptop or tablet).
The selected-camera interface may allow control of a plurality of cameras 4 and provide a visual indication indicating which of the cameras 4 is the selected camera 4. This approach allows the user to view configuration data or other relevant data from other cameras while controlling the selected camera 4. This may be usefid where the data from other cameras is relevant for comparison or reference purposes.
In an embodiment, the selected-camera interface is configured to allow control of the selected camera 4 and no other camera 4. Various other funetionalities associated with the selected camera 4 may be provided by the selected-camera interface.
in an embodiment, the processing unit 6 is configured to select one of the cameras 4 in response to a perturbation in the output of the accelerometer 22 (e.g. an amplitude of the perturbation, proportional to a magnitude of an acceleration, or a duration of the perturbation) from that camera 4 that is larger than a predetermined threshold. The perturbation may be caused for example by a user of the system tapping the camera 4 lightly.
Alternatively or additionally, the processing unit 6 may be configured to select one of the cameras 4 when an output from the accelerometer 22 from that camera 4 matches a predetermined signature output. The predetermined signature output may correspond to an output consistent with a user tapping the camera with a finger, or any other manipulation of the camera by a user which does not disturb the mounting of the camera 4. Typically, therefore, the processing unit 6 is configured to detect relatively light interaction between the user and the camera 4, such as tapping (single or multiple, such as double tapping), or other similar, light interactions. The predetermined signature output may be determined by recording the response of the camera accelerometer 22 to one or more types of envisaged interaction. For example, the response to a variety of single finger taps could be recorded and an average response could be used as a predetermined signature output. When a user taps the camera 4 in use, the response of the accelerometer 22 can be compared to the recorded average response and if the two responses are sufficiently similar it can be deduced that there is a match between the output from the accelerometer and the predetermined signature output. Various aspects of the accelerometer output could be used for the comparison, including for example the duration of the perturbation in the output, the amplitude of the perturbation of the output, or the variation with time of the amplitude of the perturbation. Using the variation with time of the amplitude of the perturbation may be particularly appropriate for example where the interaction by the user takes a more complex form, for example a double tap. Here, it may be appropriate for example to detect a pair of local maxima in the perturbation of the accelerator output 22 and/or the time separation of the maxima in order to determine whether the user interaction matches the predetermined signature output for a double tap.
in an embodiment, the processing unit 6 is configured to respond differently according to the direction of a perturbation in the output from the accelerometer 22. For example, the processing unit 6 may be configured to perform a first direction-selected processing when the camera 4 is tapped on one side (and thus in a first direction, for example in an inward direction substantially perpendicular to the first side) and a second direction-selected processing, different from the first direction-selected processing, when the camera 4 is tapped on a second side (and thus in a second direction, different from the first direction, for example in an inward direction substantially perpendicular to the second side). For example, the first direction-selected processing may comprise displaying image data captured by the camera and the second direction-selected processing may comprise displaying configuration data of the camera.
Figure 2 depicts how four cameras 4 of a motion capture system 2 may be configured so as to be directed towards a target region 16. The provision of four cameras 4 is exemplary. Fewer than four or more than four cameras 4 may be provided according to requirements. Typically, each of the cameras 4 will be a physically separate unit. Each camera 4 is typically mountable independently of the other cameras 4. In the example shown, the cameras 2 are mounted to separate mounting supports 14.
The cameras 4 may be configured to interact with the processing unit 6 in various ways. Wires may be provided between each of the cameras 4 and the processing unit 6, for example. Alternatively or additionally, wireless data transfer may be possible between the cameras 4 and the processing unit 6.
In the above-described embodiments, accelerometers 22 in the cameras 4 are used to provide a convenient way for a user to select a camera that he is in close proximity with and/or to select functionality associated with that camera. However, the accelerometers 22 may be used for other purposes, in addition to the fiinctionalities described above, or as an alternative to the functionalities described above.
For example, in an embodiment the processing unit 6 is configured to detect a change in an orientation of one or more of the cameras 4 based on an output from the accelerometers 22. This may be achieved by detecting a change in the direction of gravity relative to the camera 4. This is illustrated schematically in the side view of Figure 3. Arrow 26 indicates the direction of gravity relative to the accelerometer 22. Gravity acts as an acceleration and is therefore detected by the accelerometer 22. The accelerometer 22 is able to detect the direction of gravity 26 relative to a reference axis 28 of the camera 4. In the example shown in Figure 3, this is used to allow the accelerometer 22 to determine an angle 24 of inclination of the camera 4 relative to the vertical. Typically, when the motion capture system 2 is set up, one or more of the cameras 4 will be mounted fixedly and then calibrated before the motion capture system is used to capture motion in the target region 16. Any deviation in the position or orientation of a camera 4 after the calibration process has finished will lead to a reduction in the quality of the image capture process. Such deviations may occur for example due to knocks to the camera 4 or mounting 14, variations in temperature and associated thermal expansion/contraction in the camera 4 or mounting 14, or yielding or bending of the mounting 14, etc. The inventors have recognised that a wide range of such deviations will involve a change in orientation of the camera 4 relative to the direction of gravity and that this can be detected by an accelerometer 22. Thus, the accelerometer 22 provides a convenient and accurate way for the processing unit 6 to detect when there has been a deviations in the camera mounting. Even changes which occur slowly over time, such as when a mounting is gradually bending or changing due to long time-scale temperature variations, etc., the accelerometer 22 can still detect changes in the orientation by comparing an absolute measurement of the orientation at a camera 4 with an absolute recording of the orientation of the same camera 4 at a previous time. For example, when the system is left overnight, a comparison can be made between the outputs from the accelerometers 22 in the morning compared with the outputs recorded from the previous day. Any significant variations (e.g. variations that are larger than a predetermined threshold) will indicate that a camera has been disturbed significantly and that checking of the mounting and/or recalibration is therefore necessary in the above-described embodiments, each of the cameras 4 is provided with an accelerometer 22. In these and other embodiments each of the cameras 4 may alternatively or additionally comprise one or more other sensors which provide useful information about the state of the camera.
In an embodiment, each of the cameras 4 comprises a temperature sensor 18. The temperature sensor I8 may be provided instead of or in addition to the accelerometer 22. The processing unit 6 is configured in such embodiments to perform processing that is dependent on an output from the temperature sensor 18. In an embodiment the processing unit 6 is configured to provide a visual indication of the temperature of one or more of the cameras 4. The visual indication may be provided on the display 12 of the processing unit 6 for example. Alternatively or additionally, a visual indication of the temperature may be provided at the individual cameras 4. in an embodiment, the temperature sensor 18 of each camera 4 is mounted on computer processing hardware 20, such as a PCB, within the camera 4. The temperature sensor 18 in such an embodiment is therefore configured to measure the temperature of the computer processing hardware 20. Typically, when a camera 4 is powered on power is supplied to the computer processing hardware 20 within the camera 4, which causes the hardware 20 to heat up. The heating can lead to changes in operating characteristics of the computer processing hardware 20 and/or in characteristics of other elements of the camera. For example, heat can be conducted from the computer processing hardware 20 to optical or mechanical elements of the camera, for example between a lens of the camera 4 and an image capture unit configured to transform light received at pixels thereof into an electrical signal representing the image captured. By measuring the temperature of the computer processing hardware 20 it is possible to detect for example when the temperature of the hardware 20 reaches a steady state. At this point, further thermal-driven changes in the properties of the camera 4 are likely to be very small. A user can therefore safely commence calibration procedures at this point in the knowledge that subsequent temperature variations are unlikely to cause significant deviation from the calibrated state. Relative to alternative approaches in which a user simply waits for a predetermined type which is chosen so as to be safely longer than any temperature settling period, the approach of the present embodiment allows a user to start the calibration procedure earlier and/or at a point which is more reliably in the steady state temperature regime.
Claims (46)
- CLAIMSA 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.
- 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.
- 3. The system of claim 2, wherein the selected-camera processing comprises displaying data from the selected camera.
- 4. 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.
- 5. 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.
- 6. The system of any of claims 2-5, wherein the displayed data comprises image data captured by the selected camera.
- 7. The system of any of claims 2-6, wherein the displayed data comprises configuration data of the selected camera.
- 8. The system of any of claims 2-7, wherein the selected-camera processing comprises providing a selected-camera interface to a user that allows a user to control the selected camera.
- 9. 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.
- 10. The system of claim 8, wherein the selected-camera interface allows control of the selected camera and no other camera.
- 11. The system of any of claims 2-10, 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.
- 12. The system of any of claims 2-1 t, 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.
- 13. The system of claim 12, where the predetermined signature output corresponds to an output consistent with a user tapping the camera with a finger.
- 14. The system of claim 12 or 13, wherein the predetermined signature output corresponds to an output consistent with a user tapping the camera a predetermined multiplicity of times.
- 15. The system of any preceding claim, wherein each of the cameras is a physically separate unit and is mountable independently of the other cameras.
- 16. The system of any preceding claim, wherein the processing unit is provided in a portable computing device configured to communicate wirelessly with each of the cameras.
- 17. The system of any preceding claim, 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.
- 18. 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.
- 19. The system of any of the preceding claims, 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.
- 20. 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 a temperature sensor and the processing unit is configured to perform processing that is dependent on an output from the temperature sensors.
- 2 I. The system of claim 20, wherein the processing unit is configured to provide a visual indication of the temperature of one or more of the cameras using the output from the temperature sensors.
- 22. The system of claim 20 or 21, wherein the temperature sensor of each camera is mounted on computer processing hardware within the camera.
- 23. 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 s dependent on an output from the accelerometers.
- 24. The method of claim 23, wherein the processing comprises selecting one of the cameras based on an output from the accelerometer; and performing a selected-camera processing which depends on which of the cameras has been selected.
- 25. The method of claim 24, wherein the selected-camera processing comprises displaying data from the selected camera.
- 26. The method of claim 25, 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.
- 27. The method of claim 26, wherein the selected-camera processing comprises displaying data from the selected camera and not displaying data from any other camera.
- 28. The method of any of claims 25-27, wherein the displayed data comprises image data captured by the selected camera.
- 29. The method of any of claims 25-28, wherein the displayed data comprises configuration data of the selected camera.
- 30. The method of any of claims 24-29, wherein the selected-camera processing comprises providing a selected-camera interface to a user that allows a user to control the selected camera.
- 31. The method of claim 30, 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.
- 32. The method of claim 30, wherein the selected-camera interface allows control of the selected camera and no other camera.
- 33. The method of any of claims 24-32, wherein the processing comprises selecting 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.
- 34. The method of any of claims 24-33, wherein the processing comprises selecting one of the cameras when an output of the accelerometer from that camera matches a predetermined signature output.
- 35. The method of claim 34, where the predetermined signature output corresponds to an output consistent with a user tapping the camera with a finger.
- 36. The method of claim 34 or 35, wherein the predetennined signature output corresponds to an output consistent with a user tapping the camera a predetermined multiplicity of times.
- 37. The method of any of claims 23-36, wherein the processing comprises detecting a change in an orientation of any of the cameras based on an output from the accelerometers.
- 38. The method of claim 37, 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.
- 39. The method of claim 37 or 38, 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.
- 40. The method of any of claims 23-39. wherein the processing comprises performing 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.
- 4 I. A method of performing motion capture using a plurality of cameras, wherein each of the cameras comprises a temperature sensor, the method comprising: performing processing at a processing unit that is dependent on an output from the temperature sensor.
- 42. The method of claim 41, wherein the processing comprises providing a visual indication of the temperature of one or more of the cameras.
- 43. The method of claim 41 or 42, wherein the temperature sensor of each camera is mounted on computer processing hardware of the camera.
- 44. The method of any of claims 4 I -43, further comprising turning on one of the cameras and performing a calibrating operation of that camera after the temperature of the temperature sensor of that camera has risen above a predetermined threshold temperature.
- 45. A motion capture system configured and/or arranged to operate substantially as hereinbefore described with reference to and/or as illustrated in the accompanying drawings.
- 46. A method of performing motion capture substantially as hereinbefore described with reference to and/or as illustrated in the accompanying drawings.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1509993.0A GB2539387B (en) | 2015-06-09 | 2015-06-09 | Motion capture system |
ES16718888T ES2946982T3 (en) | 2015-06-09 | 2016-04-22 | Motion capture system and method |
JP2018516640A JP6978411B2 (en) | 2015-06-09 | 2016-04-22 | Motion capture system |
PCT/GB2016/051130 WO2016198827A1 (en) | 2015-06-09 | 2016-04-22 | Motion capture system |
EP23152155.0A EP4184930A1 (en) | 2015-06-09 | 2016-04-22 | Motion capture system and method |
US15/580,438 US10375288B2 (en) | 2015-06-09 | 2016-04-22 | Motion capture system |
EP16718888.7A EP3308535B1 (en) | 2015-06-09 | 2016-04-22 | Motion capture system and method |
JP2021183932A JP2022043028A (en) | 2015-06-09 | 2021-11-11 | Motion capture system |
JP2021183920A JP7344950B2 (en) | 2015-06-09 | 2021-11-11 | motion capture system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1509993.0A GB2539387B (en) | 2015-06-09 | 2015-06-09 | Motion capture system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201509993D0 GB201509993D0 (en) | 2015-07-22 |
GB2539387A true GB2539387A (en) | 2016-12-21 |
GB2539387B GB2539387B (en) | 2021-04-14 |
Family
ID=53785189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1509993.0A Active GB2539387B (en) | 2015-06-09 | 2015-06-09 | Motion capture system |
Country Status (6)
Country | Link |
---|---|
US (1) | US10375288B2 (en) |
EP (2) | EP3308535B1 (en) |
JP (3) | JP6978411B2 (en) |
ES (1) | ES2946982T3 (en) |
GB (1) | GB2539387B (en) |
WO (1) | WO2016198827A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10742959B1 (en) | 2017-12-29 | 2020-08-11 | Perceive Corporation | Use of machine-trained network for misalignment-insensitive depth perception |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110267456A1 (en) * | 2010-05-03 | 2011-11-03 | Microsoft Corporation | Detecting motion for a multifunction sensor device |
US20130271602A1 (en) * | 2010-08-26 | 2013-10-17 | Blast Motion, Inc. | Motion event recognition system and method |
WO2014092552A2 (en) * | 2012-12-13 | 2014-06-19 | Mimos Berhad | Method for non-static foreground feature extraction and classification |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3566451B2 (en) * | 1996-04-24 | 2004-09-15 | キヤノン株式会社 | Camera control system and camera control system control method |
US5878283A (en) | 1996-09-05 | 1999-03-02 | Eastman Kodak Company | Single-use camera with motion sensor |
JP4209535B2 (en) | 1999-04-16 | 2009-01-14 | パナソニック株式会社 | Camera control device |
JP2002008040A (en) * | 2000-06-16 | 2002-01-11 | Matsushita Electric Ind Co Ltd | Three-dimensional information detecting device and three-dimensional information detecting method |
WO2005029658A1 (en) * | 2003-09-22 | 2005-03-31 | Murata Manufacturing Co., Ltd. | Method and device for installing light emitting element |
JP4767507B2 (en) | 2004-07-13 | 2011-09-07 | オリンパス株式会社 | Medical cost calculation device |
JP2006163759A (en) * | 2004-12-07 | 2006-06-22 | Canon Inc | Portable terminal |
US10148897B2 (en) * | 2005-07-20 | 2018-12-04 | Rearden, Llc | Apparatus and method for capturing still images and video using coded lens imaging techniques |
EP1713253A1 (en) * | 2005-04-14 | 2006-10-18 | Thomson Licensing | Camera system with PIP in viewfinder |
EP1713254A3 (en) | 2005-04-14 | 2007-06-13 | THOMSON Licensing | Camera system with PIP in viewfinder |
US8659668B2 (en) * | 2005-10-07 | 2014-02-25 | Rearden, Llc | Apparatus and method for performing motion capture using a random pattern on capture surfaces |
US9891435B2 (en) * | 2006-11-02 | 2018-02-13 | Sensics, Inc. | Apparatus, systems and methods for providing motion tracking using a personal viewing device |
US8040382B2 (en) | 2008-01-07 | 2011-10-18 | Dp Technologies, Inc. | Method and apparatus for improving photo image quality |
JP5117288B2 (en) * | 2008-06-12 | 2013-01-16 | オリンパスイメージング株式会社 | Imaging device and setting method of imaging device |
IT1392548B1 (en) | 2008-11-24 | 2012-03-09 | St Microelectronics Rousset | DEVICE AND METHOD OF DETECTING THE ORIENTATION OF AN ELECTRONIC DEVICE |
JP5259464B2 (en) * | 2009-03-13 | 2013-08-07 | オリンパスイメージング株式会社 | Imaging apparatus and mode switching method thereof |
US8687070B2 (en) | 2009-12-22 | 2014-04-01 | Apple Inc. | Image capture device having tilt and/or perspective correction |
JP2011188210A (en) * | 2010-03-08 | 2011-09-22 | Olympus Imaging Corp | Photographing apparatus and photographing system |
JP5661367B2 (en) | 2010-08-02 | 2015-01-28 | キヤノン株式会社 | IMAGING DEVICE, ITS CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM |
JP2012039468A (en) | 2010-08-09 | 2012-02-23 | Olympus Imaging Corp | Photographing apparatus system and photographing device |
JP5792662B2 (en) | 2011-03-23 | 2015-10-14 | シャープ株式会社 | Parallax calculation device, distance calculation device, and parallax calculation method |
US8786680B2 (en) * | 2011-06-21 | 2014-07-22 | Disney Enterprises, Inc. | Motion capture from body mounted cameras |
US9143769B2 (en) * | 2011-06-29 | 2015-09-22 | Massachusetts Institute Of Technology | 3-D luminous pixel arrays, 3-D luminous pixel array control systems and methods of controlling 3-D luminous pixel arrays |
US9100587B2 (en) * | 2011-07-22 | 2015-08-04 | Naturalpoint, Inc. | Hosted camera remote control |
US9444547B2 (en) * | 2011-07-26 | 2016-09-13 | Abl Ip Holding Llc | Self-identifying one-way authentication method using optical signals |
US9596398B2 (en) | 2011-09-02 | 2017-03-14 | Microsoft Technology Licensing, Llc | Automatic image capture |
US9534924B2 (en) * | 2011-11-11 | 2017-01-03 | Qualcomm Incorporated | Sensor auto-calibration |
EP2802958B1 (en) | 2012-01-11 | 2019-11-13 | Ultra-D Coöperatief U.A. | Mobile display device |
JP6110617B2 (en) | 2012-01-16 | 2017-04-05 | 矢崎エナジーシステム株式会社 | Display system, display control apparatus, and display control method |
EP2642748A1 (en) | 2012-03-22 | 2013-09-25 | BlackBerry Limited | A camera device for reducing sensor noise |
JP2012177941A (en) * | 2012-06-05 | 2012-09-13 | Olympus Imaging Corp | Electronic device |
JP5393863B2 (en) * | 2012-10-15 | 2014-01-22 | オリンパスイメージング株式会社 | Imaging device and setting method of imaging device |
US9124762B2 (en) * | 2012-12-20 | 2015-09-01 | Microsoft Technology Licensing, Llc | Privacy camera |
JP5412591B2 (en) * | 2013-03-07 | 2014-02-12 | オリンパスイメージング株式会社 | machine |
WO2014155730A1 (en) | 2013-03-29 | 2014-10-02 | 株式会社東芝 | Display processing device and display processing method |
US9563105B1 (en) * | 2013-04-10 | 2017-02-07 | Ic Real Tech Inc. | Screw coupler enabling direct secure fastening between communicating electronic components |
JP5458202B2 (en) * | 2013-04-24 | 2014-04-02 | オリンパスイメージング株式会社 | Imaging apparatus and mode switching method thereof |
US9066007B2 (en) * | 2013-04-26 | 2015-06-23 | Skype | Camera tap switch |
JP5632040B2 (en) * | 2013-05-17 | 2014-11-26 | オリンパスイメージング株式会社 | Imaging apparatus and mode switching method thereof |
US10362303B2 (en) | 2013-12-03 | 2019-07-23 | Apple Inc. | Sensor-assisted autofocus calibration |
US9824572B2 (en) * | 2015-05-21 | 2017-11-21 | Donald J Arndt | System, method, and computer program product for locating lost or stolen items |
-
2015
- 2015-06-09 GB GB1509993.0A patent/GB2539387B/en active Active
-
2016
- 2016-04-22 JP JP2018516640A patent/JP6978411B2/en active Active
- 2016-04-22 ES ES16718888T patent/ES2946982T3/en active Active
- 2016-04-22 WO PCT/GB2016/051130 patent/WO2016198827A1/en active Application Filing
- 2016-04-22 EP EP16718888.7A patent/EP3308535B1/en active Active
- 2016-04-22 EP EP23152155.0A patent/EP4184930A1/en active Pending
- 2016-04-22 US US15/580,438 patent/US10375288B2/en active Active
-
2021
- 2021-11-11 JP JP2021183920A patent/JP7344950B2/en active Active
- 2021-11-11 JP JP2021183932A patent/JP2022043028A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110267456A1 (en) * | 2010-05-03 | 2011-11-03 | Microsoft Corporation | Detecting motion for a multifunction sensor device |
US20130271602A1 (en) * | 2010-08-26 | 2013-10-17 | Blast Motion, Inc. | Motion event recognition system and method |
WO2014092552A2 (en) * | 2012-12-13 | 2014-06-19 | Mimos Berhad | Method for non-static foreground feature extraction and classification |
Also Published As
Publication number | Publication date |
---|---|
US10375288B2 (en) | 2019-08-06 |
WO2016198827A1 (en) | 2016-12-15 |
JP6978411B2 (en) | 2021-12-08 |
EP3308535A1 (en) | 2018-04-18 |
ES2946982T3 (en) | 2023-07-31 |
GB201509993D0 (en) | 2015-07-22 |
EP3308535B1 (en) | 2023-06-07 |
US20180176446A1 (en) | 2018-06-21 |
JP7344950B2 (en) | 2023-09-14 |
JP2022043028A (en) | 2022-03-15 |
GB2539387B (en) | 2021-04-14 |
EP3308535C0 (en) | 2023-06-07 |
JP2018529130A (en) | 2018-10-04 |
EP4184930A1 (en) | 2023-05-24 |
JP2022043027A (en) | 2022-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2808652B1 (en) | Portable electronic device with integrated temperature sensor being compensated by other sensing data | |
WO2018032436A1 (en) | Pan-tilt control method and device, storage medium and unmanned aerial vehicle | |
KR20140144423A (en) | Method for controlling heat management and an electronic device thereof | |
CN112513595A (en) | Movable device, control terminal, method for measuring temperature by using thermal infrared imager in movable device and movable system | |
KR20070037773A (en) | Apparatus and method for inputting user command in display device | |
CN107490365A (en) | Scene change detection in dimensioning device | |
JP2020053976A (en) | Imaging device with alignment analysis feature | |
JP7344950B2 (en) | motion capture system | |
CN104699279A (en) | Displacement detection device with no hovering function and computer system including the same | |
CN106370883B (en) | Speed measurement method and terminal | |
EP2808651A1 (en) | Portable electronic device with integrated temperature sensor being compensated by other sensing data | |
CN109470715B (en) | Computational vision detection method, device and computer readable storage medium | |
US20220279122A1 (en) | Image capturing device, image capturing method and recording medium | |
KR102572675B1 (en) | Method and electronic device for adaptively configuring user interface | |
US9239638B2 (en) | Information processing device supporting suspension operation function, data processing method thereof, input device and input controlling method thereof | |
US10877597B2 (en) | Unintended touch rejection | |
TWI521421B (en) | Interactive image displaying system and apparatus for providing image | |
US10742883B2 (en) | Data processing method for generating composite image data indicating positional changes of an object | |
JP2017103638A (en) | Observation region estimation method, observation region estimation device, and program | |
CN106303244A (en) | Self-shooting bar and length calculation method, acquisition parameters control method and terminal | |
CN113311937A (en) | Calibration method for eyeball tracking and related device | |
KR101779407B1 (en) | Display method for two dimension data and display apparatus thereof | |
JP2016036085A5 (en) | ||
KR102614026B1 (en) | Electronic device having a plurality of lens and controlling method thereof | |
US9354706B2 (en) | Storage medium having stored therein information processing program, information processing apparatus, information processing system, and method of calculating designated position |