Information processing device and information processing method

An information processing method comprising:

• capturing a movement of an object within a moving image;
• defining a candidate curve representing a contour of an object in a current image frame included within the moving image as captured, based on a contour of the object estimated in an image frame at a preceding point of time, and estimating the contour of the object in the current image frame by observing the likelihood of the candidate curve;
• acquiring a parameter indicating an orientation of the object or a position of the object by performing image analysis in an area inside the contour of the object as estimated;
• determining whether a gesture is made by checking a time-dependent change in the orientation of the object or in the position of the object, which is estimated from the parameter, by referring to a criterion defined for each gesture;
• and
• performing, when it is determined that a gesture is made, a process corresponding to the gesture and generating output data accordingly.

A computer program embedded in a non-transitory computer-readable recording medium, comprising:

• a module configured to capture a movement of an object within a moving image;
• a module configured to define a candidate curve representing a contour of an object in a current image frame included within the moving image as captured, based on a contour of the object estimated in an image frame at a preceding point of time, and estimate the contour of the object in the current image frame by observing the likelihood of the candidate curve;
• a module configured to acquire a parameter indicating an orientation of the object or a position of the object by performing image analysis in an area inside the contour of the object as estimated;
• a module configured to determine whether a gesture is made by checking a time-dependent change in the orientation of the object or in the position of the object, which is estimated from the parameter, by referring to a criterion defined for each gesture;
• and
• a module configured to perform, when it is determined that a gesture is made, a process corresponding to the gesture and generating output data accordingly.

A non-transitory computer-readable recording medium having embodied thereon a computer program comprising:

• a module configured to capture a movement of an object within a moving image;
• a module configured to define a candidate curve representing a contour of an object in a current image frame included within the moving image as captured, based on a contour of the object estimated in an image frame at a preceding point of time, and estimate the contour of the object in the current image frame by observing the likelihood of the candidate curve;
• a module configured to acquire a parameter indicating an orientation of the object or a position of the object by performing image analysis in an area inside the contour of the object as estimated;
• a module configured to determine whether a gesture is made by checking a time-dependent change in the orientation of the object or in the position of the object, which is estimated from the parameter, by referring to a criterion defined for each gesture;
• and
• a module configured to perform, when it is determined that a gesture is made, a process corresponding to the gesture and generating output data accordingly.