Information processor, information processing system, and information processing method, and program

An information processing apparatus comprising:

• a memory storing program code;
• and
• a processor configured to execute the program code to perform operations comprising:
• detecting a mounting position of a device on the basis of sensor data of a sensor provided in the device to produce a detected mounting position,
• wherein detecting the mounting position includes:
• calculating a norm of rotation rate information (u, v, and w) around three axes of X, Y, and Z, the rotation rate information being gyro sensor output;
• performing a frequency component ratio calculation that calculates a ratio between a high-frequency component signal and a low-frequency component signal included in a temporal transition signal of the norm;
• and
• executing discrimination processing of whether the sensor is mounted on a human body or is mounted on other than the human body, on the basis of the ratio calculated in the frequency component ratio calculation.

An information processing system comprising:

• a sensor configured to output sensor detection information according to a motion of a mounting body, the sensor being mounted on a human body of a user or mounted on other than the human body, the human body being an object becoming an image shooting target;
• and
• a video camera configured to execute image shooting,
• wherein the video camera includes:
• a mounting position detection unit configured to input the sensor detection information from the sensor, and to execute sensor mounting position determination processing;
• an action detection unit configured to input the sensor detection information, and to analyze a motion of the user;
• and
• a metadata generating unit configured to input detection information of the action detection unit, and to generate shot image corresponding metadata,
• the mounting position detection unit calculates a ratio between a high-frequency component and a low-frequency component included in the sensor detection information, and executes discrimination processing of whether the sensor is mounted on the human body or is mounted on other than the human body, on the basis of the calculated ratio, and
• the metadata generating unit inputs user motion detection information obtained by executing a motion detection algorithm assuming a sensor mounting position coincident with a detection result of the mounting position detection unit, and generates the shot image corresponding metadata.

An information processing system comprising:

• a sensor configured to output sensor detection information according to a motion of a mounting body, the sensor being mounted on a human body of a user or mounted on other than the human body, the human body being an object becoming an image shooting target;
• a video camera configured to execute image shooting;
• and
• a server configured to receive the sensor detection information from the sensor, and to receive a shot image from the video camera,
• wherein the server includes:
• a mounting position detection unit configured to input the sensor detection information from the sensor, and to execute sensor mounting position determination processing;
• an action detection unit configured to input the sensor detection information, and to analyze a motion of the user;
• and
• a metadata generating unit configured to input detection information of the action detection unit, and to generate shot image corresponding metadata,
• the mounting position detection unit calculates a ratio between a high-frequency component and a low-frequency component included in the sensor detection information, and executes discrimination processing of whether the sensor is mounted on the human body or is mounted on other than the human body, on the basis of the calculated ratio, and
• the metadata generating unit inputs user motion detection information obtained by executing a motion detection algorithm assuming a sensor mounting position coincident with a detection result of the mounting position detection unit, and generates the shot image corresponding metadata received from the video camera.

An information processing method executed in an information processor, the method comprising:

• detecting a mounting position of a device on the basis of sensor data of a sensor provided in the device to produce a detected mounting position;
• detecting an action of a sensor mounting body on the basis of the detected mounting position and the sensor data;
• inputting sensor detection information according to a motion of the sensor mounting body from the sensor mounted on a human body of a user or mounted on other than the human body, and executing sensor mounting position determination processing;
• inputting the sensor detection information from the sensor, and analyzing a motion of the user;
• calculating a ratio between a high-frequency component and a low-frequency component included in the sensor detection information, and executing discrimination processing of whether the sensor is mounted on the human body or is mounted on other than the human body, on the basis of the calculated ratio;
• and
• inputting the sensor detection information and user motion detection information obtained by executing a motion detection algorithm assuming a sensor mounting position coincident with the detected mounting position to generate shot image corresponding metadata.

A non-transitory computer readable medium storing program code, the program code being executable by a processor to perform operations comprising:

• detecting a mounting position of a device on the basis of sensor data of a sensor provided in the device to produce a detected mounting position;
• detecting an action of a sensor mounting body on the basis of the detected mounting position and the sensor data;
• inputting sensor detection information according to a motion of the sensor mounting body from the sensor mounted on a human body of a user or mounted on other than the human body, and executing sensor mounting position determination processing;
• inputting the sensor detection information from the sensor, and analyzing a motion of the user;
• calculating a ratio between a high-frequency component and a low-frequency component included in the sensor detection information, and executing discrimination processing of whether the sensor is mounted on the human body or is mounted on other than the human body, on the basis of the calculated ratio;
• and
• inputting the sensor detection information and user motion detection information obtained by executing a motion detection algorithm assuming a sensor mounting position coincident with the detected mounting position to generate shot image corresponding metadata.