Device and method for reading out an electronic image sensor...

Details Device and method for reading out an electronic image sensor... Device and method for reading out an electronic image sensor...

2006-12-05

2006-12-05

Wu, Jingge (Department: 2624)

Image analysis

Applications

Biomedical applications

C348S294000

Reexamination Certificate

active

07146032

ABSTRACT:
A method for reading out image points of a two-dimensional electronic image sensor includes subdivided the image into at least two different regions where the region of greater interest ROI is read at a scanning rate which is higher than that used for other regions. Consequently, the region of interest can be reproduced with a higher temporal resolution. The sensitivity of the reading unit is adapted in conformity with the scanning rate of a relevant image point so as to take into account the fact that image points that are read out less frequently collect a light intensity over a prolonged period of time and hence may reach high signal strengths. Regions that are less frequently read out can also be irradiated with a lower radiation intensity by applying appropriate masking. The method is very suitable for the imaging of time-critical processes in medical X-ray applications.

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