Gesture recognition based on user proximity to a camera
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorIkushi Yoda
Life of this patent
Estimating the term…
Abstract
A gesture recognition apparatus by which a gesture for an interface operation is performed includes an image capturer that captures distance image data, a closest point detector that detects a closest point from the imaging apparatus, a gesture measurer that calculates an input switching border for switching ON and OFF of interface input, a gesture recognizer that determines whether the input is ON or OFF, and an interface controller that performs the interface control associated with the gesture if it is determined that the input has been turned on.
Claims6
A gesture recognition apparatus recognizing a gesture of a user and performing interface control associated with the recognized gesture, the gesture recognition apparatus comprising:
- a processor which, by executing instructions, function as:
- an image capturer that sequentially captures distance image data taken by an imaging apparatus in which a user has been imaged, and outputs the input image data and the distance data on a display screen;
- a closest point detector that detects, from the distance image data displayed on the display screen, a closest point from the imaging apparatus;
- a gesture measurer that calculates an input switching border, which is currently displayed with the distance image data, a tracking area associated with recognizable gestures, a gesture guideline, and an origin of the gesture, for switching ON and OFF of interface input, based on a trajectory of the closest point that is the gesture of the user detected from a plurality of distance image data items;
- a gesture recognizer that determines whether the input is ON or OFF, in accordance with the input switching border;
- and
- an interface controller that performs the interface control associated with the gesture when it is determined that the input has been turned on, wherein
- the gesture measurer detects start point of the gesture of the user as the origin and an OFF side of input, and
- the gesture recognizer determines ON or OFF of input by determining whether the detected closest point resides in a space that includes the origin relative to the input switching border.
The gesture recognition apparatus according to the gesture recognition apparatus according to wherein, when the gesture recognizer detects that a time to detect the closest point on an ON side of input is equal to or greater than a predetermined time, the interface controller applies a long press on a predetermined interface.
A gesture recognition method for recognizing a gesture of a user and performing interface control associated with the recognized gesture, the method comprising:
- sequentially capturing, by an image capturer, distance image data taken by an imaging apparatus in which a user has been imaged, and outputting the input image data and the distance data on a display screen;
- detecting, from the distance image data displayed on the display screen by a closest point detector, a closest point from the imaging apparatus;
- calculating, by a gesture measurer, an input switching border, which is currently displayed with the distance image data, a tracking area associated with recognizable gestures, a gesture guideline, and an origin of the gesture, for switching ON and OFF of interface input, based on a trajectory of the closest point that is the gesture of the user detected from a plurality of distance image data items;
- determining, by a gesture recognizer, whether the input is ON or OFF, in accordance with the input switching border;
- and
- performing, by an interface controller, the interface control associated with the gesture when it is determined that the input has been turned on, wherein
- detecting, by the gesture measurer, start point of the gesture of the user as the origin and an OFF side of input, and
- determining, by the gesture recognizer, ON or OFF of input by determining whether the detected closest point resides in a space that includes the origin relative to the input switching border.
Dependencies are inferred from the claim text.