WO2018218414A1

WO2018218414A1 - Data processing method and apparatus

Info

Publication number: WO2018218414A1
Application number: PCT/CN2017/086304
Authority: WO
Inventors: 杨松龄; 匡扶东; 李欠欠
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2017-05-27
Filing date: 2017-05-27
Publication date: 2018-12-06
Also published as: CN109643168A

Abstract

A data processing method and apparatus, the method being used in a head-mounted display device, and the method comprising: acquiring movement data of the head of a user (101); on the basis of the movement data, determining preset standard movement data corresponding to the movement data (102); determining whether the movement data matches the preset standard movement data (103); when the movement data does not match the preset standard movement data, displaying the preset standard movement data on a display interface of the head-mounted display device (104); and outputting prompting information, the prompting information being used for prompting adjustment of the movement gesture of the head on the basis of the preset standard movement data (105). The user can be reminded to adjust the movement gesture of the head on the basis of the display interface in order to improve movement effects.

Description

Data processing method and device

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a data processing method and apparatus.

Background technique

With the continuous improvement of living standards, people pay more and more attention to health. More and more people choose to exercise by exercise or slow down the pain of certain diseases (such as cervical spondylosis), so various sports strategies (such as neck) Shoulder self-rehabilitation therapy came into being. However, in practice, it is found that due to the lack of effective guiding measures, the user's movement posture is prone to non-standard conditions, resulting in poor exercise performance.

Summary of the invention

The embodiment of the invention discloses a data processing method and device, which can promptly prompt the user to adjust the movement posture of the head to improve the exercise effect.

A first aspect of the embodiments of the present invention discloses a data processing method, which is applied to a head mounted display device, and the method includes:

Get the motion data of the user's head.

Determining preset standard motion data related to the motion data based on the motion data;

Determining whether the motion data matches the preset standard motion data;

Displaying the preset standard motion data on the display interface when the motion data does not match the preset standard motion data;

The prompt information is used to prompt the user to adjust the motion posture of the head according to the preset standard motion data.

A second aspect of the embodiments of the present invention discloses a data processing device, which is applied to a head mounted display device, and the device includes:

An acquisition module, configured to acquire motion data of a user's head;

a determining module, configured to determine preset standard motion data related to the motion data according to the motion data;

a determining module, configured to determine whether the motion data is matched with the preset standard motion data Match

a display module, configured to display the preset standard motion data on the display interface when the motion data does not match the preset standard motion data;

The prompting module is configured to output prompt information, where the prompt information is used to prompt the user to move the head according to the preset standard motion data.

A third aspect of the embodiments of the present invention discloses a computer readable storage medium, wherein the computer readable storage medium stores instructions for causing a computer to execute a data processing method as provided by the present invention when the instructions are run on a computer .

A fourth aspect of an embodiment of the present invention discloses a computer program product comprising instructions for causing a computer to perform a data processing method as provided by the present invention when the instructions are run on a computer.

When the motion data does not match the preset standard motion data, the embodiment displays the preset standard motion data in the interface of the head mounted display device, and prompts the user to adjust according to the preset standard motion data. The movement posture of the head can promptly prompt the user to adjust the movement posture of the head to improve the exercise effect.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

1 is a schematic flow chart of a data processing method according to an embodiment of the present invention;

2a is a schematic diagram of a motion state of a user's head disclosed in an embodiment of the present invention;

2b is a schematic diagram of another motion state of a user's head disclosed in an embodiment of the present invention;

2c is a schematic diagram of still another motion state of a user's head disclosed in the embodiment of the present invention;

FIG. 3a is a schematic diagram of still another motion state of a user's head according to an embodiment of the present invention; FIG.

FIG. 3b is a schematic diagram of still another motion state of a user's head according to an embodiment of the present invention; FIG.

FIG. 3c is a schematic diagram of still another motion state of a user's head according to an embodiment of the present invention; FIG.

4 is a schematic diagram of displaying motion data and preset standard motion data in a text manner according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of displaying motion data and preset standard motion data in a coordinate manner according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention discloses a data processing method and device for conveniently prompting the user to adjust the movement posture of the head to improve the exercise effect, which are respectively described in detail below.

The head-mounted display device in the embodiment of the present invention may also be referred to as video glasses, a glasses-type display, a portable theater, etc., and can realize playback of multimedia files, including 3D images, 3D videos, and the like.

FIG. 1 is a schematic flowchart diagram of a data processing method according to an embodiment of the present invention. The method can be applied to a data processing method described in this embodiment in a head mounted display device, including:

101. Acquire motion data of a user's head.

The motion data may include at least one of a motion direction, a motion amplitude, and a motion frequency. The motion direction may specifically include a leftward, a rightward, a forward, or a backward motion, and the motion amplitude may specifically refer to a user's head forward. The degree of swinging backwards, to the left or to the right, the greater the degree of the swing, the greater the amplitude.

In the embodiment of the present invention, the head mounted display device can determine the position information of the user's head through the sensor, thereby acquiring the motion data of the user's head. Specifically, the head mounted display device may use a position corresponding to the first position information of the head mounted display device when the user's head is not in motion as a reference point, and when the user's head is detected to be in motion, the reference point may be The reference acquires second location information of the head mounted display device, and determines motion data of the user's head based on the second location information. The second position information may include a moving distance, a moving angle, a moving direction, and the like. The head mounted display device may use the moving distance or the moving angle in the position information as the moving range of the user's head, and use the moving direction as the user's head. The direction of movement. The sensor may specifically be a gravity sensor, a three-axis acceleration sensor, a gyroscope, or the like.

For example, when it is detected that the user's head has no motion, the motion state of the user's head is as shown in FIG. 2a, and the head mounted display device can record the first position information of the user's head, and the first position information is (moving The distance is 0 cm, the moving angle is 0 degrees), and the position corresponding to the first position information can be used as a reference point; when the user's head is detected to move to the left, that is, the motion state of the user's head is as shown in FIG. 2b, The head mounted display device can record the second position information of the head mounted display device based on the reference point. The second position information is (the moving distance is 4 cm, the moving angle is 30 degrees, and the moving direction is leftward); When the user's head moves to the right, that is, the motion state of the user's head, as shown in FIG. 2c, the head mounted display device can record the third position information of the head mounted display device based on the reference point, the third position. The information is (the moving distance is 4.5 cm, the moving angle is 33 degrees, and the moving direction is rightward), and the moving angle (or moving distance) in the second position information or the third position information can be regarded as the movement of the user's head. Amplitude, Movement direction as the direction of movement of the user's head.

For example, when it is detected that the user's head is not moving, the motion state of the user's head is as shown in FIG. 3a, and the head mounted display device can record the first position information of the head mounted display device, the first position information. (the moving distance is 0cm, the moving angle is 0 degrees), and the position corresponding to the first position information can be used as a reference point; when the user's head is detected to move backward, that is, the motion state of the user's head is as shown in FIG. 3b. The head mounted display device can record the second position information of the head mounted display device based on the reference point. The second position information is (the moving distance is 4.5 cm, the moving angle is 40 degrees, and the moving direction is backward). When detecting the forward movement of the user's head, that is, the motion state of the user's head, as shown in FIG. 3c, the head mounted display device can record the third position information of the head mounted display device based on the reference point. The third position information is (the moving distance is 5 cm, the moving angle is 44 degrees, and the moving direction is forward), and the moving angle (or moving distance) in the second position information or the third position information can be regarded as the user head. Department of operations The magnitude, the direction of movement as a movement direction of the user's head.

102. Determine preset standard motion data related to the motion data according to the motion data.

In the embodiment of the present invention, the head mounted display device determines preset standard motion data related to the motion data according to the motion data. Specifically, the head mounted display device can determine preset standard motion data related to the motion data according to a motion direction in the motion data.

For example, if the motion direction in the motion data is to the left, the head mounted display device can determine the preset standard motion data of the motion direction to the left, and if the motion direction in the motion data is forward, the head mounted display device can determine Preset standard motion data moving forward.

It should be noted that the head-mounted display device can preset different standard motion data according to the user's personal information (such as age). For example, the user can select different modes (such as youth mode, middle-aged mode, old-age mode, etc.). The standard motion data is also set in advance. The user can also set a standard motion data in advance. The method of setting the standard motion data in advance is merely exemplary, and is not limited in the embodiment of the present invention.

It should be further noted that the head-mounted display device may further determine preset standard motion data that matches the personal information according to the personal information input by the user, or may randomly acquire a preset standard motion data, and may also receive The preset standard motion data sent by other devices, for example, the head mounted display device can communicate with the mobile terminal through Bluetooth or wireless fidelity Wi-Fi, and receive standard motion data sent by the mobile terminal.

103. Determine whether the motion data matches the preset standard motion data. If not, execute step 104, and if yes, end the current process.

In the embodiment of the present invention, the head mounted display device can determine whether the motion data matches the preset standard motion data, so that whether the preset standard motion data is displayed can be determined according to the matching result.

Specifically, the head mounted display device compares the motion data with the preset standard motion data to determine whether the motion data matches the preset standard motion data. When the direction of motion in the motion data is inconsistent with the standard motion direction in the preset standard motion data; or the absolute value of the difference between the motion amplitude in the motion data and the standard motion amplitude in the preset standard motion data When the value is greater than or equal to the preset value; or the direction of motion in the motion data is inconsistent with the standard motion direction in the preset standard motion data, and the motion amplitude in the motion data and the standard motion amplitude in the preset standard motion data When the absolute value of the difference value is greater than or equal to the preset value; the head mounted display device may determine that the motion data is not similar to the preset standard motion data, that is, the motion data does not match the preset standard motion data.

If the moving direction and the moving amplitude of the motion data are the same as the corresponding moving direction and the moving amplitude in the preset standard motion data, or the moving direction is the same, and the absolute value of the motion amplitude difference is smaller than the preset value, the head The wearable display device can determine that the motion data is similar to the preset standard motion data.

As an optional embodiment, when the motion data matches the preset standard motion data, The head-mounted display device can also output prompt information, which is used to prompt the user's head motion data to match the preset standard motion data, where the prompting manner can be text, image, voice, vibration or multiple ways. A combination of tips.

104. Display the preset standard motion data on the display interface.

In the embodiment of the present invention, the head mounted display device can display the preset standard motion data on the display interface when the motion data does not match the preset standard motion data, and not only promptly and effectively prompt the user. Adjusting the motion posture of the head according to the preset standard motion data can also reduce power consumption caused by displaying the preset standard motion data in real time.

As an optional embodiment, the head mounted display device may display the acquired motion data or the obtained motion data and preset standard data when the motion data does not match the preset standard motion data. The difference between the differences is on the display interface, so that the user can intuitively know whether the current exercise posture is standard, and can promptly prompt the user to adjust the movement posture of the head according to the display interface.

The difference between the motion data, the preset standard motion data, the acquired motion data, and the preset standard data may be displayed in a combination of characters, coordinates, images, or a plurality of modes, and the motion data is simultaneously displayed. The preset standard motion data, the difference between the obtained motion data and the preset standard data displayed on the display interface may be set according to the user's personal preference, or may be randomly set by the head mounted display device. It is also possible that the head-mounted display device is set by the manufacturer at the time of shipment, which is not limited in the embodiment of the present invention.

For example, the display interface of the head mounted display device may display the preset standard motion data in a text manner, and may also display the difference between the motion data or the acquired motion data and the preset standard data. One or more of the values, as shown in FIG. 4, assume that the rectangular area is the display interface of the head mounted display device, and the motion data is displayed above the display interface, and the direction of the motion data is leftward. The motion amplitude is 30 degrees, and the middle position of the display interface displays the preset standard motion data. The standard motion direction of the preset standard motion data is to the left, and the standard motion amplitude is 45 degrees. The lower part of the display interface is displayed. The difference between the motion data and the preset standard motion data, the difference between the motion amplitude of the motion data and the standard motion amplitude is 15 degrees, and the prompt information may also be displayed according to the difference, such as swinging 15 degrees to the left for the user The movement posture of the head can be adjusted more clearly.

Specifically, the display interface of the head mounted display device can display the number of motions by using coordinates. According to the preset standard motion data, that is, the motion data and the motion direction and the motion amplitude in the preset standard motion data can be mapped into the three-dimensional coordinate system, and the motion data is indicated in a line manner. And the preset standard motion data, as shown in FIG. 5, assuming that the rectangular area is a display interface of the head mounted display device, and the line 1 in the display interface is used to indicate preset standard motion data, and the display interface Line 2 can be used to indicate motion data, XYZ for 3D coordinates, Y axis for motion direction for left and right, X axis for motion direction for front and back, and Z axis for motion when the user is not moving, Z axis and The angle of the line 2 (the angle β is) can represent the amplitude of the motion in the motion data, and the angle between the Z axis and the line 1 (the angle α) can represent the standard motion amplitude in the preset standard motion data. The absolute value of the difference between the motion amplitude in the motion data and the standard motion amplitude in the preset standard motion data is greater than or equal to a preset value (eg, the absolute value of the difference between β and α is greater than or equal to 5 degrees) The head-mounted display device can display an arrowed line between the line 1 and the line 2, so that the user can be more clearly prompted to adjust the running posture of the head and the specific adjustment strategy according to the display interface.

It should be noted that, when the user's head is moving forward or backward, if the display interface of the head mounted display device displays the motion data and the preset standard motion data by using an image display manner, three-dimensionality may be adopted. The display mode of the image is displayed so that the displayed motion data is more vivid and intuitive.

105. Output prompt information, the prompt information is used to prompt to adjust the motion posture of the head according to the preset standard motion data.

The prompt information may be presented on the display interface in the form of a text or an image, and may also be presented in the form of a voice, a vibration, or the like, which is not limited in the embodiment of the present invention.

For example, when the head-mounted display device determines that the motion amplitude of the user's head is less than the motion amplitude of the preset standard motion data, the prompt information may be output by voice to prompt the user according to the preset displayed by the display interface. The standard motion data increases the amplitude of the movement of the head, and the effect of the motion can be improved; when the head-mounted display device determines that the motion amplitude of the user's head is greater than the motion amplitude of the preset standard motion data, the prompt information can be output by voice. The user is prompted to reduce the movement range of the head according to the preset standard motion data displayed on the display interface, thereby avoiding damage to the head.

As an optional embodiment, the head mounted display device can display the change of the motion data and the preset standard motion data in real time in the display interface. Specifically, the head mounted display device can acquire motion data of the head in real time, and determine a user header according to the motion data acquired in the real time. The motion data corresponds to the motion trajectory, and displays the motion trajectory and the motion trajectory corresponding to the preset standard motion data in the display interface, so that the user can grasp the current motion posture and the gap with the standard motion in real time, and can also be used for The auxiliary user determines for himself whether the current motion action or posture matches the preset standard motion action or posture.

As an optional embodiment, when the motion data does not match the preset standard motion data, the color of the preset standard motion data on the display interface is adjusted, and the color is used to remind the user to observe the preview. The standard motion data is set so that the user can adjust the motion posture of the head according to the preset standard motion data.

For example, when detecting that the motion data matches the preset standard motion data, the head mounted display device may set the color of the preset standard motion data to green, and detect the motion data and the pre- When the standard motion data is not matched, the head mounted display device may adjust the color of the preset standard motion data to red to remind the user to observe the preset standard motion data, so that the user can The standard motion data is set to adjust the motion posture of the head.

As an optional embodiment, the motion data may further include a motion frequency, so that the user may also prompt when the motion frequency of the user is different from the standard motion frequency in the preset standard motion data, so that the user can maintain reasonable motion. Frequency to improve the sporting effect.

As an optional embodiment, after performing step 105, the head mounted display device may further perform the steps of: acquiring a history of the motion data, the history including the direction of motion and the number of motions, and generating a motion strategy according to the history, And outputting the motion strategy, the motion strategy is used to prompt the user to adjust the motion posture of the head.

In the embodiment of the present invention, since the user's head moves, it may habitually move in a certain direction, resulting in poor exercise effect. Therefore, the head mounted display device can acquire a history record of the motion data, and the history record includes the motion direction and The number of movements is generated according to a history record, and the motion strategy is output, and the motion strategy is used to prompt the user to adjust the motion posture of the head to enable the user to improve the exercise effect.

For example, the head mounted display device can acquire a history record of the user A's motion data, the history record includes a motion direction and a number of motions, and the history record is analyzed to know that the user A moves forward 120 times. The number of post-motions is 115, the number of movements to the left is 130, and the number of movements to the right is 50. It can be seen that the number of movements of the user to the right is significantly less. A motion strategy is generated based on the history, that is, the number of movements to the right is increased.

In a specific implementation, the head mounted display device may acquire a history record of the motion data, where the history record includes the direction of motion and the number of motions, and analyze the history record, if it is determined that the user moves to the target direction too often (more than the preset) The number of times thresholds can be generated according to the history record, that is, the number of movements to the target direction is reduced; if it is determined that the number of times the user moves to the target direction is too small (less than the preset number of thresholds), the motion strategy can be generated according to the history record, that is, The number of movements to the target direction is increased, wherein the target direction may be any of forward, backward, leftward, or rightward.

It should be noted that the threshold number of preset times may be set according to factors such as the total number of times of movement and the direction of motion of the user within the preset time period, for example, the total number of times of movement in a day is 500 times, and the direction of the head movement of the user. Including left, right, forward, and backward, you can set the preset number of thresholds to 100 times.

As an optional embodiment, if the head mounted display device determines that the total number of times of motion in the preset time period of the user has reached a preset total number of times threshold according to the history record, the prompt information may also be output, and the prompt information may be output. It is used to prompt the user to pause the exercise to avoid the excessive amount of exercise and adversely affect the body, thus helping to keep the user's exercise amount within a reasonable range.

In the embodiment of the present invention, when the motion data does not match the preset standard motion data, the head mounted display device may display preset standard motion data in the display interface, and prompt the user to perform motion according to the preset standard. The data adjusts the movement posture of the head, and can promptly prompt the user to adjust the movement posture of the head to improve the exercise effect.

FIG. 6 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention. The data processing device described in this embodiment is applied to a head mounted display device, and the device includes:

The obtaining module 201 is configured to acquire motion data of the user's head.

The determining module 202 is configured to determine preset standard motion data related to the motion data according to the motion data acquired by the acquiring module 201. The preset standard motion data is pre-stored in the storage module 207.

The determining module 203 is configured to determine whether the motion data acquired by the acquiring module 201 matches the preset standard motion data determined by the determining module 202.

The display module 204 is configured to determine, at the determining module 203, the motion data and the preset When the standard motion data does not match, the preset standard motion data is displayed on the display interface.

The prompting module 205 is configured to output prompt information, where the prompt information is used to prompt the user to move the head according to the preset standard motion data displayed by the display module 204.

As an optional embodiment, the determining module 202 is further configured to determine a corresponding motion trajectory according to the motion data acquired by the acquiring module 201.

The display module 204 is further configured to display, on the display interface, the motion track determined by the determining module 202 and the preset standard motion data.

As an optional embodiment, the adjusting module 206 is configured to adjust a color of the preset standard motion data on the display interface, where the color is used to remind the user to observe the preset standard motion data. .

As an optional embodiment, the obtaining module 201 is further configured to acquire a history record of the motion data, where the history record includes a motion direction and a motion number.

The prompting module 205 is further configured to generate a motion policy according to the history record acquired by the acquiring module 201, and output the motion policy, where the motion policy is used to prompt the user to adjust the head Athletic posture.

As an optional embodiment, the motion data includes at least one of a motion direction, a motion amplitude, and a motion frequency.

It is to be understood that the functions of the functional modules of the data processing apparatus of the present embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, refer to the related description of the foregoing method embodiments, and details are not described herein again.

In the embodiment of the present invention, the obtaining module 201 acquires the motion data of the user's head, and the determining module 202 determines the preset standard motion data related to the motion data stored in the storage module 207 according to the motion data, and the determining module 203 determines the Whether the motion data matches the preset standard motion data, and when the motion data does not match the preset standard motion data, the display module 204 displays the preset standard motion data on the display interface, and the prompt module 205 outputs The prompt information is used to prompt the user to promptly adjust the movement posture of the head according to the movement posture of the head according to the preset standard motion data, so as to improve the exercise effect.

The present invention also provides a computer readable storage medium stored in the computer readable storage medium There is an instruction that, when run on a computer, causes the computer to execute the data processing method described in the first embodiment above.

The present invention also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the data processing method described in the first embodiment above.

It should be noted that, for the foregoing various method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

The above disclosure is only a preferred embodiment of the present invention, and of course, the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

Claims

A data processing method is applied to a head mounted display device, and the method includes:

Obtaining motion data of the user's head;

Determining preset standard motion data related to the motion data based on the motion data;

Determining whether the motion data matches the preset standard motion data;

Displaying the preset standard motion data on the display interface when the motion data does not match the preset standard motion data;

The prompt information is output, and the prompt information is used to prompt to adjust the motion posture of the head according to the preset standard motion data.
The method according to claim 1, wherein before the determining whether the motion data matches the preset standard motion data, the method further comprises the steps of:

Determining a corresponding motion trajectory according to the motion data;

The motion trajectory and the preset standard motion data are displayed on a display interface.
The method of claim 2, wherein the method further comprises the step of:

Adjusting a color of the preset standard motion data on the display interface, the color being used to remind the user to observe the preset standard motion data.
The method of claim 1 further comprising:

Obtaining a history of the motion data, the history including a direction of motion and a number of motions;

Generating a motion strategy according to the history record, and outputting the motion policy, the motion strategy is used to prompt the user to adjust a motion posture of the head.
The method of claim 1 wherein said motion data comprises at least one of a direction of motion, a magnitude of motion, and a frequency of motion.
A data processing device applied to a head mounted display device, characterized in that the device include:

An acquisition module, configured to acquire motion data of a user's head;

a determining module, configured to determine preset standard motion data related to the motion data according to the motion data;

a determining module, configured to determine whether the motion data matches the preset standard motion data;

a display module, configured to display the preset standard motion data on the display interface when the motion data does not match the preset standard motion data;

The prompting module is configured to output prompt information, where the prompt information is used to prompt the user to move the head according to the preset standard motion data.
The device of claim 6 wherein:

The determining module is further configured to determine a corresponding motion trajectory according to the motion data;

The display module is further configured to display the motion track and the preset standard motion data on a display interface.
The device according to claim 7, wherein the device further comprises:

And an adjustment module, configured to adjust a color of the preset standard motion data on the display interface, where the color is used to remind the user to observe the preset standard motion data.
The device according to claim 6 wherein

The acquiring module is further configured to acquire a history record of the motion data, where the history record includes a motion direction and a motion number;

The prompting module is further configured to generate a motion policy according to the historical record, and output the motion policy, where the motion policy is used to prompt the user to adjust a motion posture of the head.
The apparatus of claim 6 wherein said motion data comprises at least one of a direction of motion, a magnitude of motion, and a frequency of motion.
A computer readable storage medium having stored therein instructions for causing a computer to execute the data processing method according to any one of claims 1 to 5 when the instructions are run on a computer.
A computer program product comprising instructions for causing a computer to perform the data processing method of any one of claims 1 to 5 when said instructions are run on a computer.