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- Picture Viewer
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- 2016-11-22
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- 杨松
Description: Portal images are acquired by electronic portal imaging devices (EPID) with megavoltage (MV)
x-ray, but they are inherently poor in terms of contrast, due to Compton Effect. In comparison with
diagnostic x-ray images, portal images usually lack sufficient detail information for normal human
vision. Therefore, an effective method of enhancing these images would be very useful. This paper
proposes a new approach that combines global and local enhancement technique
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