Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pointer light tracking method, program, and recording medium thereof










Image Number 10 for United States Patent #8049721.

A pointer light tracking method wherein all black image and white square images located at four corners of the all black image are projected on the display, the display on which the all black image and the white square images are displayed is shot by a camera, a domain corresponding to the white square image is extracted from the obtained image data, central coordinates (x, y) of the extracted domain are computed, and a parameter necessary in performing distortion correction by use of projection conversion for coordinate expressing the position of the pointer light on the display is computed from the computed central coordinates (x, y) and central coordinates (X, Y) of the white square image.








 
 
  Recently Added Patents
Scale information for drawing annotations
Image processing apparatus, image display apparatus, and image processing method
Temporary protective cover for an exposed junction box
Identification of electrical grid phase information for end-points in a grid network
Conductive polymer and a solid electrolytic capacitor using the same as a solid electrolyte
Method for forming ventilation holes in an electrode plate
Meter socket cabinet
  Randomly Featured Patents
Cast detergent-containing article and method of using
Process for rejuvenation electroless nickel solution
Medical probe with biopsy stylet
Container for storing and dispensing semi-soft sticklike food products
Method and apparatus for synchronizing browse and chat functions on a computer network
Polishing apparatus having retainer ring rounded along outer periphery of lower surface and method of regulating retainer ring to appropriate configuration
Communications between networked cable services system devices
Load current pulse control devices
Light triggered thyristor device
Anchor for a beach umbrella