DIGITIZED FILM IMAGE PROCESSING
SYSTEM WITH BORDERED SPLIT SCREEN
 Inventors: Patrice J. Capitant, Los Altos;
Vinson R. Perry, San Carlos; David
O. Hodgson, San Mateo, all of Calif.
 Assignee: Sony Corporation of America, Park Ridge, N.J.
 Appl. No.: 740,626
 Filed: Aug. 5, 1991
 Int. C1.5 H04N 5/262
 U.S. CI 358/183; 358/76;
 Field of Search 358/54, 76, 80, 214,
358/216, 183, 22, 453; 355/20, 38, 45; 340/747
 References Cited
U.S. PATENT DOCUMENTS
Primary Examiner—Edward L. Coles, Sr.
Assistant Examiner—Kim Yen Vy
Attorney, Agent, or Firm—Limbach & Limbach
A method and system for generating a bordered split screen video display. In preferred embodiment, the invention generates a composite signal from digital signals representing reference and scanned film images, converts the composite signal to a composite video signal, and displays the composite video signal as a bordered split screen video display. The invention can be embodied in a film scanning system which includes a processor for digitally correcting a digital signal representing a digitized film image, such as by performing digital color correction on the digital signal. The film scanning system also includes field store circuitry for storing the corrected digital signal and a digital reference signal, circuitry for generating a composite signal from the stored reference and corrected signal, and circuitry for generating a composite video signal from the composite signal. In accordance with the invention, the composite video signal is displayed as a split screen composite image having a distinctive border between distinct test and reference picture areas. In a class of preferred embodiments, a graphics cursor signal is also inserted into the composite signal. When displayed, the cursor signal overlays a cursor region of the bordered split screen composite image.
20 Claims, 10 Drawing Sheets