PROBLEM TO BE SOLVED: To provide a vertical high-resolution image by using a super-resolution theory.SOLUTION: During the X-ray imaging, modulated image information on a subject is input into a CCD sensor and successively transmitted frame images overlap one another in such a manner that a frequency grid for demodulation, created by an image memory so as to be identical in frequency to a frequency grid for diagonal-streak modulation with an angle &theta, is set to have the same phase. Then, modulated frame image information is created in the arrangement of pixels smaller than the pixel (one pixel) of the CCD sensor, in accordance with the size of the pixel (one pixel) of the CCD sensor. Thus, image construction is performed in the high-capacity memory. The frame images are sequentially written, added, and synthesized and the acquired final image can be acquired as a panoramic image, having high resolution in the vertical direction of the image, in the high-capacity memory.COPYRIGHT: (C)2008,JPO&INPIT【課題】超解像の理論を用いて縦方向における高解像度の画像を提供する。【解決手段】 X線撮影中、被写体の変調画像情報をCCDセンサに入力し、逐次送られてくるフレーム画像を角度θを有する斜め縞変調用周波数格子と同一周波数として画像メモリで作成した復調用周波数格子を同位相として重ね、この際、CCDセンサのピクセル(1画素)サイズに合わせるため、変調されたフレーム画像情報はCCDセンサのピクセル(1画素)サイズより小さな画素配列で作成し、このため、画像構築は大容量メモリ上で行い、この時、フレーム画像を順次書込み、加算、合成し、得られた最終画像は、大容量メモリ上に画像の縦方向の高解像度のパノラマ画像として得ることができる。【選択図】図13
