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Video system for producing video images simulating images derived from motion picture film

  • US 5,140,414 A
  • Filed: 10/11/1990
  • Issued: 08/18/1992
  • Est. Priority Date: 10/11/1990
  • Status: Expired due to Term
First Claim
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1. A video signal modification system for simulating video images originated on motion picture film stocks from high definition video originated images, including:

  • computing means for reassigning color and black component values for each pixel, scan-sequentially, within each frame of a high definition originated image stored on tape, based on digital component modifications;

    look up table programs on which said digital component modifications are based, representing and compiled from comparative digital results of film stocks'"'"' responses to selected color chart gradients under selected lighting conditions, following a telecine transfer to digital video, as plotted against a video originated response to color and grey scale charts under same lighting combinations;

    means for physically instilling selected film grain patterns of optional density and size, to the images resulting from a high definition videoprojection of frame store data derived from primary digital modification effected with said computing means;

    means for videographing said videoprojection with a high definition camera unit, aligned to and with technical means to maintain a high degree of the projected image'"'"'s integrity;

    means for compatibly;

    recording;

    playing back;

    frame-storing in digital form;

    digitally altering;

    frame-storing again;

    reconverting to analog and videoprojecting;

    re-recording and displaying on a monitor, a high definition video signal; and

    means for governing all insert time-code editing, system function, timing, and component advance signals through a system computer from a keyboard coupled to said system computer.

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