JP5908902B2 - 放射線画像撮影装置及び放射線画像撮影方法 - Google Patents
放射線画像撮影装置及び放射線画像撮影方法 Download PDFInfo
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- 210000000481 breast Anatomy 0.000 claims description 19
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- 238000009607 mammography Methods 0.000 claims description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
- G01T1/247—Detector read-out circuitry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
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- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
- H01L27/14658—X-ray, gamma-ray or corpuscular radiation imagers
- H01L27/14663—Indirect radiation imagers, e.g. using luminescent members
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/28—Indexing scheme for image data processing or generation, in general involving image processing hardware
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/815—Camera processing pipelines; Components thereof for controlling the resolution by using a single image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
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Description
・正方形 1辺の長さa1=100μm、面積S1=10000μm2、最大対角長d1max=141μm
・正六角形 1辺の長さa1=107μm、面積S1=10000μm2、最大対角長d1max=123.5μm
となり(図8A、図8Bも参照)、同等の画素面積において、正六角形の場合、正方形と比較して対角長d1maxを12%程度縮小することができる。
・面積S1=4871.4μm2
・水平方向の画素の配列ピッチPP1(x)=75μm
・最大対角長d1max=86.6μm
・面積S0=S1=4871.4μm2
・一辺の長さPP0=√(S1)=69.8μm
・対角長d0max=√(2×S1)=98.7μm
・面積S2=2500μm2
・対角長d2max=70.7μm
・面積S1=4489.5μm2
・水平方向の画素の配列ピッチPP1(x)=72μm
・最大対角長d1max=83.1μm
・面積S0=S1=4489.5μm2
・一辺の長さPP0=√(S1)=67.0μm
・面積S2=2500μm2
・対角長d2max=70.7μm
Claims (12)
- 放射線を検出する同じ大きさの六角形状の複数の画素をハニカム状に配列した放射線検出素子と、
前記放射線検出素子から得られた第1の画像データを複数の画素が正方格子状に配列された画像を表わす第2の画像データとなるように補間処理を行う画素密度変換部と、
を備えた放射線画像撮影装置であって、
前記六角形状の画素の最長の対角線の長さをd1maxとし、
前記六角形状の画素の面積をS1とし、
前記第2の画像データの正方格子の対角線の長さをd2maxとした場合に、
下記式(1)を満たす、
放射線画像撮影装置。
- 前記六角形状の画素を、扁平した六角形状となるように形成した、請求項1に記載の放射線画像撮影装置。
- 前記放射線画像撮影装置を、被検者の乳房を撮影するマンモグラフィー装置として用いる場合において、前記六角形状の画素を、胸壁側から乳房先までの奥行き方向の長さが、該方向と交差する方向の幅より短くなるように扁平させて形成した、請求項2に記載の放射線画像撮影装置。
- 前記六角形状の画素を、該画素の中心を通る3本の対角線のうち、1本の対角線を他の2本の対角線より短くし、該他の2本の対角線が等しい長さとなるように扁平させて形成した、請求項2又は請求項3に記載の放射線画像撮影装置。
- 前記画素密度変換部は、前記第1の画像データにおいて水平方向及び垂直方向のうち画素の配列ピッチが短い方向の補間処理を先に行い、他方の方向の補間処理を後に行う、請求項1〜請求項4のいずれか1項記載の放射線画像撮影装置。
- 更に、放射線を照射する放射線源と、
前記第2の画像データに基づいて画像を出力する画像出力装置と、
を備えた請求項1〜請求項5のいずれか1項記載の放射線画像撮影装置。 - 放射線を検出する同じ大きさの六角形状の複数の画素をハニカム状に配列した放射線検出素子で第1の画像データを検出し、該第1の画像データを複数の画素が正方格子状に配列された画像を表わす第2の画像データとなるように補間処理を行う放射線画像撮影方法であって、
前記六角形状の画素の最長の対角線の長さをd1maxとし、
前記六角形状の画素の面積をS1とし、
前記第2の画像データの正方格子の対角線の長さをd2maxとした場合に、
下記式(1)を満たす、放射線画像撮影方法。
- 前記六角形状の画素を、扁平した六角形状とする、請求項7に記載の放射線画像撮影方法。
- 被検者の乳房を撮影する場合において、前記六角形状の画素を扁平させて形成し、画素の幅の短い方が、胸壁側から乳房先へ向かう方向に沿うように乳房を配置して撮影する、請求項8に記載の放射線画像撮影方法。
- 前記六角形状の画素を、該画素の中心を通る3本の対角線のうち、1本の対角線を他の2本の対角線より短くし、該他の2本の対角線が等しい長さとなるように扁平させて形成した放射線検出素子により撮影する、請求項8又は請求項9に記載の放射線画像撮影方法。
- 前記第1の画像データにおいて水平方向及び垂直方向のうち画素の配列ピッチが短い方向の補間処理を先に行い、他方の方向の補間処理を後に行う、請求項7〜請求項10のいずれか1項記載の放射線画像撮影方法。
- 更に、前記第2の画像データに基づいて画像を出力する、請求項7〜請求項11のいずれか1項記載の放射線画像撮影方法。
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PCT/JP2012/070374 WO2013005863A1 (ja) | 2011-08-14 | 2012-08-09 | 放射線画像撮影装置及び放射線画像撮影方法 |
JP2013523072A JP5908902B2 (ja) | 2011-08-14 | 2012-08-09 | 放射線画像撮影装置及び放射線画像撮影方法 |
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JP5908902B2 true JP5908902B2 (ja) | 2016-04-26 |
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US (1) | US20140161229A1 (ja) |
EP (1) | EP2742863B1 (ja) |
JP (1) | JP5908902B2 (ja) |
CN (1) | CN103732142B (ja) |
WO (1) | WO2013005863A1 (ja) |
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DE102016212771A1 (de) * | 2016-07-13 | 2018-01-18 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Abtasten eines Lichtsensors |
CN110324548B (zh) * | 2019-06-27 | 2021-11-09 | Oppo广东移动通信有限公司 | 一种像素单元电路、信号处理方法及存储介质 |
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JP2000244733A (ja) | 1998-12-24 | 2000-09-08 | Fuji Photo Film Co Ltd | 放射線画像読取方法および装置並びにそれに使用する放射線固体検出器 |
JP2002350547A (ja) * | 2001-05-30 | 2002-12-04 | Konica Corp | 放射線画像検出器および放射線画像形成システム |
JP2003255049A (ja) * | 2002-03-06 | 2003-09-10 | Canon Inc | 光検出装置及び放射線検出装置 |
JP2006029839A (ja) | 2004-07-13 | 2006-02-02 | Ge Medical Systems Global Technology Co Llc | X線検出装置およびx線ct装置 |
US20050253974A1 (en) * | 2005-01-20 | 2005-11-17 | Joshua Elliott | Pixellated display and imaging devices |
TW200707354A (en) * | 2005-06-30 | 2007-02-16 | Koninkl Philips Electronics Nv | Cross talk reduction in electrophoretic displays |
JP5043380B2 (ja) * | 2005-07-25 | 2012-10-10 | キヤノン株式会社 | 放射線検出装置および放射線検出システム |
US8045022B2 (en) * | 2007-06-12 | 2011-10-25 | Fujifilm Corporation | Imaging apparatus for correcting a luminance signal |
JP5087474B2 (ja) * | 2007-06-12 | 2012-12-05 | 富士フイルム株式会社 | 撮像装置 |
EP2190179B1 (en) * | 2007-08-15 | 2015-10-14 | Japan Science and Technology Agency | Image processing device, method, and program |
JP4388110B2 (ja) * | 2007-08-15 | 2009-12-24 | 独立行政法人科学技術振興機構 | 画像処理装置、方法およびプログラム |
JP4760915B2 (ja) * | 2009-01-08 | 2011-08-31 | ソニー株式会社 | 固体撮像素子 |
JP5412325B2 (ja) | 2010-03-02 | 2014-02-12 | Hoya株式会社 | ズーム内視鏡 |
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- 2012-08-09 CN CN201280039637.0A patent/CN103732142B/zh active Active
- 2012-08-09 JP JP2013523072A patent/JP5908902B2/ja active Active
- 2012-08-09 EP EP12807470.5A patent/EP2742863B1/en active Active
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EP2742863B1 (en) | 2017-06-14 |
WO2013005863A1 (ja) | 2013-01-10 |
US20140161229A1 (en) | 2014-06-12 |
JPWO2013005863A1 (ja) | 2015-02-23 |
CN103732142B (zh) | 2016-06-22 |
EP2742863A4 (en) | 2015-04-01 |
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CN103732142A (zh) | 2014-04-16 |
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