IMAGE PROCESSING DEVICE, RADIOGRAPHIC SYSTEM, PROGRAM, AND EXPOSURE INDEX CALCULATION METHOD

To allow a user not only to correctly determine whether or not a radiation ray of an intended dose has reached a radiation detector when a radiation image is taken but also to correctly determine whether or not the acquired radiation image is of the intended image quality.SOLUTION: An image processi...

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1. Verfasser: KANAMORI KOTARO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To allow a user not only to correctly determine whether or not a radiation ray of an intended dose has reached a radiation detector when a radiation image is taken but also to correctly determine whether or not the acquired radiation image is of the intended image quality.SOLUTION: An image processing device 3 includes acquisition means for acquiring image data on a radiation image, calculation means for calculating an exposure index related to the noise of the radiation image based on the image data acquired by the acquisition means, and notification means for executing notification based on the exposure index calculated by the calculation means. The calculation means calculates a deviation index indicting an extent of deviation of the exposure index to a target value of the exposure index based on the calculated exposure index and the target value of the exposure index. The notification means can also notify of the deviation index calculated by the calculation means.SELECTED DRAWING: Figure 4 【課題】放射線画像を撮影したときに、意図した線量の放射線が放射線検出器に到達したか否かだけではなく、得られた放射線画像が意図した画質になっているか否かについてもユーザーが正確に判断できるようにする。【解決手段】画像処理装置3は、放射線画像の画像データを取得する取得手段と、取得手段が取得した画像データに基づいて、放射線画像のノイズに関連する露光指標を算出する算出手段と、算出手段が算出した露光指標に基づく報知を行う報知手段と、を備える。算出手段は、算出した露光指標及び露光指標の目標値に基づいて、露光指標の目標値に対する露光指標のずれの程度を表す偏差指標を算出し、報知手段は、算出手段が算出した前記偏差指標を報知することもできる。【選択図】図4