| Toward a More Clarified Detective Quantum Efficiency Methodology Contributor(s): Zhang, Da (Author) |
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ISBN: 3844399690 ISBN-13: 9783844399691 Publisher: LAP Lambert Academic Publishing OUR PRICE: $69.77 Product Type: Paperback Published: June 2011 |
| Additional Information |
| BISAC Categories: - Technology & Engineering | Electrical |
| Physical Information: 0.43" H x 6" W x 9" (0.62 lbs) 188 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Detective quantum efficiency (DQE) is widely accepted as the golden rule to objectively evaluate the performance of x-ray imaging systems. It provides a comprehensive characterization of an x-ray imaging system, because it combines several important image-quality-related measurements such as contrast, resolution, and noise, and because it measures the efficiency of the utilization of x-ray in the imaging process. Despite its importance, the current DQE methodology is imperfect in general agreement. The focus of this dissertation is to investigate the DQE methodology for digital x-ray imaging systems, in an effort to clarify some confusing aspects of the current DQE methodology. Through a detailed theoretical derivation of the DQE methodology for digital x-ray imaging, a more clarified understanding of the DQE theory is provided. Besides the re-visited DQE theory, techniques to determine the constituent parts of DQE, including the photon fluence, Modulation Transfer Function (MTF), and Noise Power Spectrum (NPS) are also discussed in this dissertation. |
