System and method for subtracting reflection images from a display screen

A system for use in conjunction with a video display device, the video display device having image control means connected to a display screen for displaying an image of a predetermined first brightness value, for subtracting, from the displayed image, at least one reflection image of a second brightness value caused by light generated by at least one light source, the at least one reflection image being visible to a user of the video display device from a viewing position, the system comprising:

• image acquisition means, positioned in proximity to the video display device at a predetermined distance and at predetermined coordinates with respect to the display screen and oriented to point substantially perpendicularly to the display screen and toward the user, operable for determining a position of at least one bodily feature of the user and positions of the at least one light source relative to said image acquisition means;
• and
• control means, connected to said image acquisition means and to the image control means, operable for:
• determining the position and area of the at least one reflection image, caused by said at least one light source, on the display screen as seen from the user's viewing position, from said predetermined distance and coordinates of said image acquisition means and said positions of at least one bodily feature of the user and of the at least one light source;
• determining, in conjunction with said image acquisition means, the second brightness value of the at least one reflection image;
• determining a difference between the predetermined first brightness value of the display image and the second brightness value of the at least one reflected image;
• and
• causing the image control means to lower the first brightness value in said area of the at least one reflection image by a function of said difference, thereby eliminating at least a portion of said at least one reflection image from the display screen.