AUTOMATIC EXPOSURE CONTROL APPARATUS AND METHOD, AND DIGITAL X-RAY IMAGING SYSTEM

摘要

The present invention is digital X-ray imaging system, and x-ray irradiation controller is related to method, and vision signal (pixel value) and output response shoot shooting condition in advance and use a linear characteristic vision signal (for example, reference pixel value) between recording condition. One main shooting vision signal of acquisition thus can be investigated for deriving from a main shooting recording condition with the background and method that provide a digital X-ray imaging system and x-ray irradiation control device, the present invention is shot recording condition measurement device in advance, is used to determine pre- shooting recording condition; Reference pixel value acquisition equipment obtains a reference pixel value (reference pixel value) from the pre- shooting video taken away with pre- shooting shooting condition; Correlation unit is obtained, is used to obtain the association in record condition between the image signal based on the relationship between reference pixel value; With it includes a main shooting recording condition judging units, determine a main shooting recording condition by using being associated with.