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Color imaging apparatus employing a horizontal stripe color filter to reduce rise-time artifacts

  • US 4,896,207 A
  • Filed: 06/17/1988
  • Issued: 01/23/1990
  • Est. Priority Date: 06/17/1988
  • Status: Expired due to Term
First Claim
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1. Imaging apparatus for generating a color video representation of an object, said apparatus comprising:

  • an area image sensor having a high speed horizontal scan and a relatively lower speed vertical scan, said sensor having a plurality of light-sensitive areas arranged two-dimensionally in parallel lines each oriented lengthwise in the horizontal high speed scanning direction;

    a color filter array having parallel horizontal lines of colored filter elements overlying respective lines of light-sensitive areas, said color filter array having a vertically repetitive pattern comprising at least three adjacent lines of same-color filter elements oriented in the horizontal scanning direction and a line of filter elements including at least one other color oriented in the horizontal scanning direction; and

    means for horizontally and vertically scanning said image sensor and for generating an output signal, said output signal comprising a repetitive color video sequence of at least three lines of the same color and one line including said other color.

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