Body movement detecting apparatus and method, and content playback apparatus and method
First Claim
1. A body movement detecting apparatus comprising:
- measuring means which outputs, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
detecting means in which, after slicing off a part of said at least one time-series signal output from the measuring means to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, the detecting means detects an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length; and
determining means which, based on the detected intensity of correlation detected by the detecting means, performs one or both of determining whether the body movement is periodic, and determining a period of the body movement.
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Abstract
A body movement detecting apparatus includes a measuring section which outputs, as at least one time-series signal, at least one result of measurement obtained by measuring body movement, a detecting section in which, after slicing off a part of the time-series signal output from the measuring section to generate a reference signal having a predetermined interval length from a predetermined position in the time-series signal, the detecting section detects the intensity of correlation between the reference signal and each different part of the time-series signal in the vicinity of the reference signal, the different part having the predetermined interval length, and a determining section which, on the basis of the detected intensity of correlation detected by the detecting section, performs one or both of determining whether or not the body movement is periodic, and determining the period of the body movement.
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Citations
18 Claims
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1. A body movement detecting apparatus comprising:
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measuring means which outputs, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
detecting means in which, after slicing off a part of said at least one time-series signal output from the measuring means to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, the detecting means detects an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length; and
determining means which, based on the detected intensity of correlation detected by the detecting means, performs one or both of determining whether the body movement is periodic, and determining a period of the body movement. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A content playback apparatus comprising:
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playback means which plays back content data;
measuring means which outputs, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
detecting means in which, after slicing off a part of said at least one time-series signal output from the measuring means to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, the detecting means detects an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length;
specifying means which, based on the intensity of correlation detected by the detecting means, specifies a period of the body movement; and
control means which controls the playback means to control a playback speed for the content data so that the playback speed matches the period of the body movement specified by the specifying means. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A body movement detecting method comprising the steps of:
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outputting, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
after slicing off a part of said at least one time-series signal output in the measuring step to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, detecting an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length; and
based on the detected intensity of correlation detected in the detecting step, performing one or both of determining whether the body movement is periodic, and determining a period of the body movement.
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16. A content playback method comprising the steps of:
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performing playback processing on content data;
outputting, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
after slicing off a part of said at least one time-series signal output in the measuring step to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, and detecting an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length;
based on the detected intensity of correlation detected in the detecting step, specifying a period of the body movement; and
controlling the playback processing to control a playback speed for the content data so that the playback speed matches the period of the body movement specified in the specifying step.
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17. A body movement detecting apparatus comprising:
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a measuring section outputting, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
a detecting section slicing off a part of said at least one time-series signal output from the measuring section to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, and subsequently detecting an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length; and
a determining section performing, based on the detected intensity of correlation detected by the detecting section, one or both of determining whether the body movement is periodic, and determining a period of the body movement.
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18. A content playback apparatus comprising:
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a playback section playing back content data;
a measuring section outputting, as at least one time-series signal, at least one result of measurement obtained by measuring body movement;
a detecting section slicing off a part of said at least one time-series signal output from the measuring section to generate a reference signal having a predetermined interval length from a predetermined position in said at least one time-series signal, and subsequently detecting an intensity of correlation between the reference signal and each different part of said at least one time-series signal in a vicinity of the reference signal, the different part having the predetermined interval length;
a specifying section specifying, based on the intensity of correlation detected by the detecting section, a period of the body movement; and
a control section controlling the playback section to control a playback speed for the content data so that the playback speed matches the period of the body movement specified by the specifying section.
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Specification