Gesture recognition apparatus, method for controlling gesture recognition apparatus, and control program

A gesture recognition apparatus that performs gesture recognition processing of recognizing a gesture from action of a recognition object taken in a moving image, the gesture recognition apparatus comprising:

• a specific subject detecting unit for detecting a specific subject having a specific feature from the moving image;
• a moving speed computing unit for computing a moving speed per unit time of the specific subject;
• a moving pattern extracting unit for extracting a moving pattern of the specific subject;
• and
• an input instruction discriminating unit for discriminating movement of the specific subject as an instruction input to the gesture recognition apparatus when the moving speed and the moving pattern satisfy predetermined conditions,
• wherein the specific subject detecting unit specifies a specific subject region including at least part of the specific subject on a frame of the moving image and specifies a gravity center position coordinate in the specific subject region.

A method for controlling a gesture recognition apparatus that performs gesture recognition processing of recognizing a gesture from action of a recognition object taken in a moving image, the gesture recognition apparatus controlling method comprising the steps of:

• performing the gesture recognition processing;
• detecting a specific subject having a specific feature from the moving image;
• computing a moving speed per unit time of the specific subject;
• extracting a moving pattern of the specific subject;
• and
• judging movement of the specific subject as an instruction of start or end of the gesture recognition processing when the moving speed and the moving pattern satisfy predetermined conditions,
• wherein, if the gesture recognition processing is started based on the judgment of the movement of the specific subject, the gesture recognizing unit performs the gesture recognition processing is performed by recognizing a shape or a posture of the specific subject.

A gesture recognition apparatus that performs gesture recognition processing of recognizing a gesture from action of a recognition object taken in a moving image, the gesture recognition apparatus comprising:

• a specific subject detecting unit for detecting a specific subject having a specific feature from the moving image;
• a moving speed computing unit for computing a moving speed per unit time of the specific subject;
• a moving pattern extracting unit for extracting a moving pattern of the specific subject;
• and
• an input instruction discriminating unit for discriminating movement of the specific subject as an instruction input to the gesture recognition apparatus when the moving speed and the moving pattern satisfy predetermined conditions,
• wherein the input instruction discriminating unit comprises a start/end judgment unit for judging the action of the specific subject as an instruction of start or end of the gesture recognition processing based on the moving speed and the moving pattern of the specific subject;
• and,
• wherein the specific subject detecting unit specifies a specific subject region including at least part of the specific subject on a frame of the moving image and specifies a gravity center position coordinate in the specific subject region.

A gesture recognition apparatus that performs gesture recognition processing of recognizing a gesture from action of a recognition object taken in a moving image, the gesture recognition apparatus comprising:

• a specific subject detecting unit for detecting a specific subject having a specific feature from the moving image;
• a moving speed computing unit for computing a moving speed per unit time of the specific subject;
• a moving pattern extracting unit for extracting a moving pattern of the specific subject;
• an input instruction discriminating unit for discriminating movement of the specific subject as an instruction input to the gesture recognition apparatus when the moving speed and the moving pattern satisfy predetermined conditions;
• and
• a gesture recognition unit for performing the gesture recognition processing by discriminating a finger posture of the user as the recognition object taken in a moving image,
• wherein the input instruction discriminating unit comprises a start/end judgment unit for judging the action of the specific subject as an instruction of start or end of the gesture recognition processing based on the moving speed and the moving pattern of the specific subject;
• wherein the specific subject detecting unit detects an organ of a user or part of the organ as the specific subject;
• wherein the specific subject detecting unit detects a palm of the user as the specific subject;
• wherein the gesture recognition unit discriminates the finger posture from a frame of the moving image from a start point to an end point;
• wherein the start point and the end point are judged by the start/end judgment unit;
• and
• wherein the specific subject detecting unit specifies a specific subject region including at least part of the specific subject on a frame of the moving image and specifies a gravity center position coordinate in the specific subject region.

A non-transitory computer readable medium for controlling a gesture recognition apparatus that performs gesture recognition processing of recognizing a gesture from action of a recognition object taken in a moving image, the gesture recognition apparatus controlling method comprising the steps of:

• performing the gesture recognition processing;
• detecting a specific subject having a specific feature from the moving image;
• computing a moving speed per unit time of the specific subject;
• extracting a moving pattern of the specific subject;
• and
• judging movement of the specific subject as an instruction of start or end of the gesture recognition processing when the moving speed and the moving pattern satisfy predetermined conditions,
• wherein, if the gesture recognition processing is started based on the judgment of the movement of the specific subject, the gesture recognizing unit performs the gesture recognition processing is performed by recognizing a shape or a posture of the specific subject.