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Radiographic imaging device and radiographic imaging method

一种放射线图像、摄影装置的技术，应用在辐射控制装置、乳腺摄影、测量装置等方向，能够解决灵敏度降低、降低、电荷量减少等问题，达到高灵敏度、提高分辨能力的效果

Active Publication Date: 2016-06-22
FUJIFILM CORP
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Problems solved by technology

[0005] However, in proportion to the reduction in pixel size, the amount of charges that can be collected decreases, resulting in a decrease in sensitivity (S / N)
Therefore, there is a problem that even if the resolving power is improved, the comprehensive image quality DQE (detective quantum efficiency: proportional to {S / N×1 / resolving power}) decreases

Method used

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  • Radiographic imaging device and radiographic imaging method
  • Radiographic imaging device and radiographic imaging method
  • Radiographic imaging device and radiographic imaging method

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Embodiment Construction

[0056] Hereinafter, modes for implementing the present invention will be described with reference to the drawings. In addition, the case where the present invention is applied to a radiation detection element of a direct conversion method that directly converts radiation into electric charges will be described below.

[0057] figure 1 It is a block diagram showing the configuration of the radiographic imaging system 100 according to this exemplary embodiment. This radiographic imaging system 100 includes an imaging device 41 that captures radiographic images, an image processing device 50 , and a display device 80 . The image processing device 50 performs image processing on image data representing captured radiographic images. The display device 80 displays a subject image represented by the image-processed image data.

[0058] The imaging device 41 has a radiation detector 42 , an operation panel 44 , an imaging device control unit 46 , a display 47 , and a communication...

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Abstract

The present invention provides a radiographic imaging device and a radiographic imaging method capable of improving resolution and ensuring high sensitivity. That is, it is a radiographic imaging apparatus including: a radiation detection element in which a plurality of hexagonal pixels of the same size are arranged in a honeycomb shape to detect radiation; An image data is interpolated so that it becomes second image data representing an image in which a plurality of pixels are arranged in a square grid, and the length of the longest diagonal line of the hexagonal pixels is set as d1max, When the area of ​​the hexagonal pixel is S1 and the length of the diagonal of the square grid of the second image data is d2max, d1max is equal to or greater than d2max, and d1max is a value of the square root of (2×S1) the following.

Description

technical field [0001] The present invention relates to a radiographic imaging device and a radiographic imaging method for capturing radiographic images. Background technique [0002] In recent years, radiographic imaging using radiation detection elements such as FPDs (flat panel detectors) that can directly convert X-ray information into digital data by arranging an X-ray sensing layer on a TFT (Thinfilm Transistor: Thin Film Transistor) active matrix substrate The device is put into practical use. Compared with conventional imaging panels, this FPD has the advantage of being able to instantly check images and also check movies, and is rapidly gaining popularity. Various types of proposals have been proposed for this radiation detection element, including, for example, a direct conversion method in which radiation is directly converted into charges through a semiconductor layer and accumulated; an indirect conversion method in which radiation is temporarily passed throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00G01T7/00H01L27/146H01L31/09H04N5/32
CPCH01L27/14663H04N5/32G06T3/4007G06T2200/28A61B6/502G01T1/247H04N23/815H04N25/76H04N1/3935
Inventor 冈田美广桑原孝夫
Owner FUJIFILM CORP
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