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发明授权
CN106651787B 基于X射线的HDR图像合成方法及系统 有权

基于X射线的HDR图像合成方法及系统
摘要：
本发明公开了一种基于X射线的HDR图像合成方法，包括：在基于X射线曝光时，采集得到Low Gain图和High Gain图，并根据预先设置的暗校正表、均匀性校正表、坏点校正表依次对该Low Gain图的像素值进行校正，及依次对High Gain图的像素值进行校正，根据预先设置的融合系数函数将校正后的Low Gain图和High Gain图进行合成，得到HDR图像。本发明还公开了一种基于X射线的HDR图像合成系统，使得能够有效将Low Gain图和High Gain图进行合成，且合成后得到的HDR图像的图像质量高，且能够降低对基于X射线拍摄时，对曝光量的要求。
摘要（英）：

The invention discloses an HDR image synthetic method based on X rays. The method comprises steps that based on X-ray exposure, a Low Gain graph and a High Gain graph are acquired, a pixel value of the Low Gain graph is sequentially corrected according to a preset dark correction table, a uniformity correction table and a bad point correction table, a pixel value of the High Gain graph is sequentially corrected, and the Low Gain graph after correction and the High Gain graph after correction are synthesized according to a preset fusion coefficient function to acquire an HDR image. The invention further discloses an HDR image synthetic system based on the X rays, the Low Gain graph and the High Gain graph can be effectively synthesized, the HDR image acquired after synthesis has high image quality, and exposure requirements during X-ray shooting can be reduced.

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