论文部分内容阅读
优质的X线影像片是口腔医学诊断、治疗的重要辅助手段。临床实践表明 ,传统的增感屏 /胶片方式所获X线片的质量易受多种因素影响 ,可导致软、硬组织结构不清、轮廓模糊 ,并减少了影像信息量[1] 。计算机X线摄影技术即CR(Comput edRadiography)是用CCD(change-coupleddevice)探
High-quality X-ray film is an important auxiliary diagnosis and treatment of oral medicine. Clinical practice shows that the quality of the X-ray film obtained by the conventional sensitization screen / film method is easily affected by many factors, which can lead to unclear soft and hard tissue structure, blurred outline and reduced image information amount [1]. Computed radiography (CR) is a technique called CCD (change-coupled device)