Automatic Exposure Control Apparatus and Method and Digital X-ray Imaging System

摘要

the present invention is digital x-ray imaging system, the X-ray irradiation control unit, and relates to the method, the video signal (Pixel Value) and the output in response to the pre-shot shooting conditions using a constant characteristic between the photographing condition the video signal (for example, the reference pixel value). the background with to provide a digital x-ray imaging system and the X-ray irradiation control apparatus and method for deriving a main shot photographing conditions can be investigated to obtain a main shot video signal To this end, the present invention is pre-shot photographing condition determining unit for determining the pre-shot photographing conditions; The reference pixel value acquisition unit to acquire a reference pixel value (Reference Pixel Value) from a pre-shot video taken with the pre-shot shooting conditions; Obtaining correlation unit for obtaining correlation between the recording conditions and the image signal based on the relationship between the reference pixel value; And it comprises a main shot photographing condition determination unit determining a main shot photographing conditions by using the correlation. ;