Median prior constrained TV algorithm for sparse view low-dose CT reconstruction
Abstract
It is known that lowering the X-ray tube current (mAs) or tube voltage (kVp) and simultaneously reducing the total number of X-ray views (sparse view) is an effective means to achieve low-dose in computed tomography (CT) scan. However, the associated image quality by the conventional filtered back-projection (FBP) usually degrades due to the excessive quantum noise. Although sparse-view CT reconstruction algorithm via total variation (TV), in...
Paper Details
Title
Median prior constrained TV algorithm for sparse view low-dose CT reconstruction
Published Date
May 1, 2015
Volume
60
Pages
117 - 131
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