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    • 4. 发明申请
    • IMAGE PROCESSING DEVICE AND METHOD
    • 图像处理装置和方法
    • US20110135178A1
    • 2011-06-09
    • US13027302
    • 2011-02-15
    • MAKOTO SATO
    • MAKOTO SATO
    • G06K9/00
    • G06T5/50G06F19/321
    • The present invention provides an image processing device and method for effectively generating a difference image from plural images. The plural images generated by an image generation unit are first associated with radiography date and hour information and stored in a storage unit, at least one reference image and one comparison image are designated by an image designation unit from the stored images, the date and hour information of the designated reference image is compared with that of the designated comparison image by an image comparison unit, a difference process is executed by a difference processing unit based on an operation determined based on the comparison result, and the processed difference image is displayed on a display unit under the control of a display control unit.
    • 本发明提供一种用于从多个图像有效地产生差分图像的图像处理装置和方法。 由图像生成单元生成的多个图像首先与放射线摄影日期和时间信息相关联并存储在存储单元中,至少一个参考图像和一个比较图像由图像指定单元从存储的图像,日期和时间 通过图像比较单元将指定的参考图像的信息与指定的比较图像的信息进行比较,基于基于比较结果确定的操作由差分处理单元执行差分处理,并且处理的差分图像被显示在 在显示控制单元的控制下的显示单元。
    • 5. 发明申请
    • IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM AND RECORDING MEDIUM
    • 图像处理设备,图像处理方法,程序和记录介质
    • US20070110307A1
    • 2007-05-17
    • US11623565
    • 2007-01-16
    • MAKOTO SATO
    • MAKOTO SATO
    • G06K9/00
    • G06T5/50G06F19/00G06T7/0012G06T2200/24G06T2207/10116G06T2207/20224G06T2207/30061G06T2207/30096
    • In the event of displaying only increase (or disappearance) of shadows in a difference image generated based on a display mode selected by a user, a difference image is subjected to gradient conversion so that only the luminance of the region(s) where a shadow has increased (or disappeared) differs from the luminance of other regions, and the difference image thus subjected to gradient conversion is displayed, thereby displaying the states of shadow change independently. Also, negative/positive information in a past image and a current image is extracted, and further, correlation of the diagnostic judgment reference of shadows on the difference image is input. Definition of the shadow stipulates whether the parts of the affected portion improving or deteriorating are to correspond to high concentration (high luminance level) or low concentration (low luminance level) on the difference image. This facilitates observation of changes in shadows.
    • 在基于用户选择的显示模式产生的差分图像中仅显示增加(或消失)阴影的情况下,对差分图像进行梯度转换,使得只有阴影的区域的亮度 已经增加(或消失)与其他区域的亮度不同,并且显示如此进行梯度转换的差分图像,从而独立地显示阴影变化的状态。 此外,提取过去图像和当前图像中的负/正信息,并且还输入差分图像上的阴影的诊断判断基准的相关性。 阴影的定义规定受影响部分的改善或恶化的部分是否对应于差分图像上的高浓度(高亮度级)或低浓度(低亮度级)。 这有助于观察阴影的变化。