Patent ID: 6577340
Filing Date: 2003-06-10
Classification: H04N

Abstract:
Apparatus for generating video signals composed of a plurality of pixels representing a photographic image previously recorded in a frame on a photographic film-type medium, comprising:an image pickup device for producing video signals in response to a light image of said photographic image projected thereto; a storage device for storing a video frame interval of said video signals; a cursor generating device for selectively generating at least two cursor indicia at two cursor positions on said video frame; a modifying device coupled to said storage device and to said cursor generating device for modifying said video signals in said video frame interval read from said storage device such that pixels located at said cursor positions are replaced with said at least two cursor indicia, respectively, thereby generating a video image of said photographic image with at least two cursor overlays superimposed thereon; a measuring device for measuring the distance between two locations in the video image at which said at least two cursor overlays are superimposed; and a calibrating device for selectively calibrating either vertical or horizontal distance between said two locations in the video image at which said at least two cursor overlays are superimposed to generate a calibrated distance between said two locations; wherein said calibrating device automatically compensates for unequal physical distance between pixels in the vertical and horizontal direction to permit said measuring device to determine the distance in uncalibrated orientation as a function of said calibrated distance.