Command issuing device, method and computer program product

A command issuing device comprising:

• an acquiring unit configured to acquire a moving image by capturing a hand of an operator;
• a projection area recognizer configured to recognize a projection area of a projection finger in the moving image, the projection finger being one of fingers onto which one of pictures of a graphical user interface (GUI) is projected;
• a projector configured to project one of the pictures of the GUI onto the projection area;
• a selection determining unit configured to measure a bending degree of the projection finger to determine whether or not the GUI is selected;
• and
• a issuing unit configured to issue a command associated with the GUI when it is determined that the GUI is selected.

A command issuing method comprising:

• acquiring a moving image by capturing a hand of an operator;
• recognizing a projection area of a projection finger in the moving image, the projection finger being one of fingers onto which one of pictures of a graphical user interface (GUI) is projected;
• projecting one of the pictures of the GUI onto the projection area;
• recognizing an operation area of an operation finger in the moving image, the operation finger being one of fingers which is assigned to operate the GUI;
• measuring an overlapping degree of the projection area and the operation area to determine whether or not the GUI is selected;
• and
• issuing a command associated with the GUI when it is determined that the GUI is selected.

A command issuing method comprising:

• acquiring a moving image by capturing a hand of an operator;
• recognizing a projection area of a projection finger in the moving image, the projection finger being one of fingers onto which one of pictures of a graphical user interface (GUI) is projected;
• projecting one of the pictures of the GUI onto the projection area;
• measuring a bending degree of the projection finger to determine whether or not the GUI is selected;
• and
• issuing a command associated with the GUI when it is determined that the GUI is selected.

A computer program product comprising a computer-readable medium including program instructions, wherein the instructions, when executed by a computer, cause the computer to execute:

• acquiring a moving image by capturing a hand of an operator;
• recognizing a projection area of a projection finger in the moving image, the projection finger being one of fingers onto which one of pictures of a graphical user interface (GUI) is projected;
• projecting one of the pictures of the GUI onto the projection area;
• recognizing an operation area of an operation finger in the moving image, the operation finger being one of fingers which is assigned to operate the GUI;
• measuring an overlapping degree of the projection area and the operation area to determine whether or not the GUI is selected;
• and
• issuing a command associated with the GUI when it is determined that the GUI is selected.

A computer program product comprising a computer-readable medium including program instructions, wherein the instructions, when executed by a computer, cause the computer to execute:

• acquiring a moving image by capturing a hand of an operator;
• recognizing a projection area of a projection finger in the moving image, the projection finger being one of fingers onto which one of pictures of a graphical user interface (GUI) is projected;
• projecting one of the pictures of the GUI onto the projection area;
• measuring a bending degree of the projection finger to determine whether or not the GUI is selected;
• and
• issuing a command associated with the GUI when it is determined that the GUI is selected.