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Radiographic apparatus and method for switching a grid

  • US 7,110,502 B2
  • Filed: 05/12/2004
  • Issued: 09/19/2006
  • Est. Priority Date: 05/12/2003
  • Status: Expired due to Fees
First Claim
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1. A radiographic apparatus comprising:

  • mode selection means for selecting either a first mode for imaging a still image or a second mode for imaging a moving image;

    a plurality of grids for removing scattered radiation from radiation which has passed through an object;

    grid selection means for selecting one of the plurality of grids in accordance with the selected mode;

    a two-dimensional detector for converting the radiation from which the scattered radiation has been removed by the selected grid into electrical signals;

    setting means for setting a read condition on a basis of the selected mode, which includes read pixel pitch and an amplification degree;

    acquisition means for acquiring an image of the object from the electrical signals on a basis of the read condition set by the setting means; and

    grid stripe reduction means for reducing grid stripes on the image on a basis of parameters corresponding to the read pixel pitch;

    wherein in the read condition, the read pixel pitch of the two-dimensional detector and the amplification degree of the second mode are larger than in the first mode.

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