Gesture input system, method, and program

Abstract

A gesture input method includes acquiring motion information of an individual based on a gesture of the individual. The method also includes performing normalization and position-coordinate conversion on the acquired motion information, where the normalization is a correction of at least a first body data of the individual into a second body data that is indicative of a normal figure provided as a base model. The method also includes matching, based on one or more parameters, the normalized and converted motion information against a template to recognize the gesture of the individual, where the one or more parameters include position, velocity, acceleration, distance, and direction. The method further includes generating information for operating an object on a screen on the basis of the normalized and converted motion information that is matched to the template.

1 . A gesture input method comprising:
 acquiring motion information of an individual based on a gesture of the individual;   performing normalization and position-coordinate conversion on the acquired motion information, wherein the normalization is a correction of at least a first body data of the individual into a second body data that is indicative of a normal figure provided as a base model;   matching, based on one or more parameters, the normalized and converted motion information against a template to recognize the gesture of the individual, wherein the one or more parameters include position, velocity, acceleration, distance, and direction; and   generating information for operating an object on a screen on the basis of the normalized and converted motion information that is matched to the template.   
     
     
         2 . The gesture input method of  claim 1 , wherein the gesture of the individual includes movement of a limb, and wherein the object on the screen includes a window. 
     
     
         3 . The gesture input method of  claim 1 , wherein said matching includes recognizing an increase in width between a left hand of the individual and a right hand of the individual. 
     
     
         4 . The gesture input method of  claim 1 , wherein said matching includes recognizing a lateral or longitudinal movement of both hands of the individual. 
     
     
         5 . The gesture input method of  claim 1 , wherein said matching includes recognizing a movement of a hand of the individual toward the front. 
     
     
         6 . The gesture input method of  claim 1 , wherein said matching includes recognizing a waving of a hand of the individual. 
     
     
         7 . The gesture input method of  claim 1 , wherein said operating the object on the screen includes at least one of reducing a size of a window, closing the window, or moving the window from a first location to a second location. 
     
     
         8 . The gesture input method of  claim 1 , wherein the gesture of the individual includes movement of a finger, and wherein the object on the screen includes a cursor. 
     
     
         9 . The gesture input method of  claim 1 , wherein said matching includes recognizing a finger-pointing by the individual. 
     
     
         10 . The gesture input method of  claim 1 , wherein said operating the object on the screen includes performing an operation that is equivalent to a click of a mouse. 
     
     
         11 . The gesture input method of  claim 1 , wherein said operating the object on the screen includes moving a cursor from a first location to a second location. 
     
     
         12 . The gesture input method of  claim 1 , wherein the gesture of the individual includes head movement. 
     
     
         13 . The gesture input method of  claim 1 , wherein the object on the screen includes a pie menu. 
     
     
         14 . The gesture input method of  claim 13 , wherein said operating the object on the screen includes selecting one pie of the pie menu. 
     
     
         15 . The gesture input method of  claim 1 , wherein said matching includes recognizing a downward movement of a palm of the individual. 
     
     
         16 . The gesture input method of  claim 1 , wherein said matching includes recognizing a punch movement of a hand of the individual. 
     
     
         17 . The gesture input method of  claim 1 , wherein said matching includes recognizing a clockwise movement of a wrist of the individual. 
     
     
         18 . A gesture input system comprising:
 a camera configured to acquire motion information of an individual based on a gesture of the individual; and   a processor operatively coupled to the camera, wherein the processor is configured to:
 perform normalization and position-coordinate conversion on the acquired motion information, wherein the normalization is a correction of at least a first body data of the individual into a second body data that is indicative of a normal figure provided as a base model; 
 match, based on one or more parameters, the normalized and converted motion information against a template to recognize the gesture of the individual, wherein the one or more parameters include position, velocity, acceleration, distance, and direction; and 
 generate information to operate an object on a screen on the basis of the normalized and converted motion information that is matched to the template. 
   
     
     
         19 . The gesture input system of  claim 18 , wherein the gesture of the individual includes movement of a limb, and wherein the object on the screen includes a window. 
     
     
         20 . The gesture input system of  claim 18 , wherein the gesture of the individual includes movement of a finger, and wherein the object on the screen includes a cursor