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Method and apparatus for providing an infrared image

  • US 7,336,823 B2
  • Filed: 06/13/2002
  • Issued: 02/26/2008
  • Est. Priority Date: 06/18/2001
  • Status: Active Grant
First Claim
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1. A method to provide a full representation of an object having a wide dynamic intensive range and maintain a good sensitivity for signal levels throughout the whole intensive range, characterized by the following steps:

  • a) divide the wide intensive range into a predetermined number of intensive intervals(INT1 to INT3) inside the wide intensive range, which intensive intervals are provided at the side of each other or are partly overlapping;

    b) providing the same number of interval representations(IM1 to IMn;

    F1 to Fn;

    T1 to Tn) of the object as the predetermined number of intervals, each interval representation being adapted to one individual of the intervals;

    c) adapting the sizes, acquisition parameters or calibration parameters of the interval representations(IM1 to IMn;

    F1 to Fn;

    T1 to Tn) to each other;

    d) combining the interval representations such that their respective intervals are provided in the same full representation (18;

    18

    ;

    20),e) providing the interval representations for the predetermined number of intervals successively; and

    f) adjusting (18;

    25) the frame speed of the full representation with the number of successive interval representations in a cycle with different integration times for the successive interval representations, such that the display rate for the combined interval representations has a predetermined frame rate.

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