JP2004113708A5 - - Google Patents
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- JP2004113708A5 JP2004113708A5 JP2002285252A JP2002285252A JP2004113708A5 JP 2004113708 A5 JP2004113708 A5 JP 2004113708A5 JP 2002285252 A JP2002285252 A JP 2002285252A JP 2002285252 A JP2002285252 A JP 2002285252A JP 2004113708 A5 JP2004113708 A5 JP 2004113708A5
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エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である異なる波長を有する複数の放射線を用い、被写体から所定の距離離れた検出面において、被写体を透過した複数の放射線の強度を検出し、前記検出面における複数の放射線画像情報を表す複数の検出データを得るステップ（ａ）と、
前記複数の検出データに基づいて、被写体を透過した放射線の位相情報を復元することにより、位相データを求めるステップ（ｂ）と、
ステップ（ｂ）において求められた位相データに基づいて画像データを生成するステップ（ｃ）と、
を具備する放射線撮像方法。A radiation imaging method for restoring phase information of radiation transmitted through a subject based on detection data obtained by detecting the intensity of radiation transmitted through the subject,
Using a plurality of radiations having different wavelengths with energy of 16 keV or more and 30 keV or less, detecting a plurality of radiation images on the detection surface by detecting the intensity of the plurality of radiations transmitted through the subject on a detection surface separated from the subject by a predetermined distance. Obtaining a plurality of detection data representing information (a);
Obtaining phase data by restoring phase information of radiation transmitted through the subject based on the plurality of detection data;
Generating image data based on the phase data determined in step (b) (c);
A radiation imaging method comprising:
エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である所定の波長を有する放射線を用い、被写体からの距離が異なる複数の検出面において、被写体を透過した放射線の強度を検出し、前記複数の検出面における複数の放射線画像情報を表す複数の検出データを得るステップ（ａ）と、
前記複数の検出データに基づいて、被写体を透過した放射線の位相情報を復元することにより、位相データを求めるステップ（ｂ）と、
ステップ（ｂ）において求められた位相データに基づいて画像データを生成するステップ（ｃ）と、
を具備する放射線撮像方法。A radiation imaging method for restoring phase information of radiation transmitted through a subject based on detection data obtained by detecting the intensity of radiation transmitted through the subject,
Using radiation having a predetermined wavelength with energy of 16 keV or more and 30 keV or less, the intensity of the radiation transmitted through the subject is detected on a plurality of detection surfaces at different distances from the subject, and a plurality of radiation images on the plurality of detection surfaces Obtaining a plurality of detection data representing information (a);
Obtaining phase data by restoring phase information of radiation transmitted through the subject based on the plurality of detection data;
Generating image data based on the phase data determined in step (b) (c);
A radiation imaging method comprising:
エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である異なる波長を有する複数の放射線を発生する放射線源と、
前記放射線源から発生され被写体を透過した放射線の強度を検出することにより、放射線画像情報を表す検出データを得る検出手段と、
被写体を透過した異なる波長を有する複数の放射線の強度を検出することにより得られた複数の検出データに基づいて、被写体を透過した放射線の位相情報を復元することにより位相データを求め、それらの位相データに基づいて画像データを生成する画像構成手段と、
を具備する放射線撮像装置。A radiation imaging apparatus for restoring phase information of radiation transmitted through a subject based on detection data obtained by detecting the intensity of radiation transmitted through the subject,
A radiation source that generates a plurality of radiations having different wavelengths with energies of 16 keV to 30 keV;
Detecting means for obtaining detection data representing radiation image information by detecting intensity of radiation generated from the radiation source and transmitted through the subject;
Based on a plurality of detection data obtained by detecting the intensities of a plurality of radiations having different wavelengths that have passed through the subject, phase data is obtained by restoring phase information of the radiation that has passed through the subject, and their phases Image constructing means for generating image data based on the data;
A radiation imaging apparatus comprising:
エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である所定の波長を有する放射線を発生する放射線源と、
前記放射線源から発生され被写体を透過した放射線の強度を検出することにより、放射線画像情報を表す検出データを得る検出手段と、
被写体と前記検出手段との間の距離を変更するために用いられる駆動手段と、
被写体を透過した放射線の強度を異なる距離において検出することにより得られた複数の検出データに基づいて、被写体を透過した放射線の位相情報を復元することにより位相データを求め、それらの位相データに基づいて画像データを生成する画像構成手段と、
を具備する放射線撮像装置。A radiation imaging apparatus for restoring phase information of radiation transmitted through a subject based on detection data obtained by detecting the intensity of radiation transmitted through the subject,
A radiation source for generating radiation having a predetermined wavelength having an energy of 16 keV or more and 30 keV or less;
Detecting means for obtaining detection data representing radiation image information by detecting intensity of radiation generated from the radiation source and transmitted through the subject;
Drive means used to change the distance between the subject and the detection means;
Based on a plurality of detection data obtained by detecting the intensity of radiation transmitted through the subject at different distances, phase data is obtained by restoring phase information of the radiation transmitted through the subject, and based on the phase data Image composing means for generating image data
A radiation imaging apparatus comprising:
前記放射線源を制御し、エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である異なる波長を有する放射線を発生させる手順（ａ）と、
被写体を透過した異なる波長を有する放射線の強度を検出することにより得られた複数の検出データに基づいて、位相のラプラシアンを求める手順（ｂ）と、
位相のラプラシアンに逆ラプラシアン演算を施すことにより位相データを求める手順（ｃ）と、
をＣＰＵに実行させる放射線撮像プログラム。A radiation imaging program for restoring phase information of radiation transmitted through a subject based on detection data obtained by generating radiation from a radiation source and detecting the intensity of the radiation transmitted through the subject,
A step (a) of controlling the radiation source to generate radiation having different wavelengths whose energy is not less than 16 keV and not more than 30 keV;
A step (b) of obtaining a Laplacian of the phase based on a plurality of detection data obtained by detecting the intensity of radiation having different wavelengths transmitted through the subject;
A procedure (c) for obtaining phase data by performing an inverse Laplacian operation on the Laplacian of the phase;
Radiation imaging program for causing CPU to execute.
前記放射線源を制御し、エネルギーが１６ｋｅＶ以上３０ｋｅＶ以下である所定の波長を有する放射線を発生させる手順（ａ）と、
被写体を透過した放射線の強度を異なる距離において検出することにより得られた複数の検出データに基づいて、位相のラプラシアンを求める手順（ｂ）と、
位相のラプラシアンに逆ラプラシアン演算を施すことにより位相データを求める手順（ｃ）と、
をＣＰＵに実行させる放射線撮像プログラム。A radiation imaging program for restoring phase information of radiation transmitted through a subject based on detection data obtained by generating radiation from a radiation source and detecting the intensity of the radiation transmitted through the subject,
A step (a) of controlling the radiation source to generate radiation having a predetermined wavelength having an energy of 16 keV or more and 30 keV or less;
A step (b) for obtaining a Laplacian of the phase based on a plurality of detection data obtained by detecting the intensity of the radiation transmitted through the subject at different distances;
A procedure (c) for obtaining phase data by performing an inverse Laplacian operation on the Laplacian of the phase;
Radiation imaging program for causing CPU to execute.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002285252A JP4137574B2 (en) | 2002-09-30 | 2002-09-30 | Radiation imaging apparatus and radiation imaging program |
| US10/671,786 US7424173B2 (en) | 2002-09-30 | 2003-09-29 | Method, apparatus and program for restoring phase information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002285252A JP4137574B2 (en) | 2002-09-30 | 2002-09-30 | Radiation imaging apparatus and radiation imaging program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004113708A JP2004113708A (en) | 2004-04-15 |
| JP2004113708A5 true JP2004113708A5 (en) | 2005-09-15 |
| JP4137574B2 JP4137574B2 (en) | 2008-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002285252A Expired - Fee Related JP4137574B2 (en) | 2002-09-30 | 2002-09-30 | Radiation imaging apparatus and radiation imaging program |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4137574B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006334069A (en) * | 2005-06-01 | 2006-12-14 | Toshiba Corp | X-ray imaging method and apparatus |
| DE102006015356B4 (en) * | 2006-02-01 | 2016-09-22 | Siemens Healthcare Gmbh | Method for producing projective and tomographic phase-contrast images with an X-ray system |
| JP2007268030A (en) * | 2006-03-31 | 2007-10-18 | Konica Minolta Medical & Graphic Inc | Radiography system and radiography method |
| JP2007268033A (en) * | 2006-03-31 | 2007-10-18 | Konica Minolta Medical & Graphic Inc | Radiography system and radiography method |
| WO2007113961A1 (en) * | 2006-03-31 | 2007-10-11 | Konica Minolta Medical & Graphic, Inc. | X-ray imaging system and x-ray imaging method |
| JP2008018059A (en) * | 2006-07-13 | 2008-01-31 | Konica Minolta Medical & Graphic Inc | Diagnostic information generation system |
| JP2008224364A (en) * | 2007-03-12 | 2008-09-25 | Kawasaki Heavy Ind Ltd | Phase information detection method and phase information detector |
-
2002
- 2002-09-30 JP JP2002285252A patent/JP4137574B2/en not_active Expired - Fee Related
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