1) correction of CT image artifacts
CT图像伪影校正
2) artifact correction
伪影校正
1.
A software method based on the reference scan is proposed for MRI phase artifact correction.
基于参考扫描原理提出了一种MRI(Magnetic resonance imaging)相位伪影的软件校正方法,首先进行一次不加频率编码梯度和相位编码梯度的参考扫描,将获得的回波链数据沿频率编码方向做傅里叶变换后求出各回波间的相位误差,由此建立相位误差补偿矩阵,对K空间数据进行校正,最后重建得到伪影校正后的图像。
3) image artifact
图像伪影
1.
Analysis of CT Image Artifact Faults For A Series of Somatom DR;
SOMATOM DR系列CT机图像伪影故障分析
4) image correction
影像校正
1.
This article explains the principle of image correction in deflective photography and points out its importance in obtaining and clearing some vestigal material evidence, thus offering an effective technique for quickly unveiling criminal cases and strike harshly the criminals.
本文论证了偏角摄影的影像校正原理，指出了它在痕迹物证应用中的重要作用，为快速破案有力地打击犯罪分子提供了一条有效的技术手段。
5) image correction
图像校正
1.
Image correction techniques for large-aperture static imaging spectrometer;
大孔径静态干涉成像光谱仪图像校正技术
2.
Methods The forming factors of the Micro CT projective image noise were analyzed,and proposed the Micro CT projective image correction method to correct the random noise,dark field,light field,response nonuniformity and defect picture element and eliminate the random noise and the ring artifact respectively.
方法:分析了Micro CT投影图像的噪声形成因素,提出了Micro CT投影图像校正的方法,分别针对随机噪声、暗场、光场、响应不一致和瑕疵像元进行了校正。
3.
Some calibration points need to be placed in the shooting region by the traditional image correction, and then the image is corrected based on the knowledge of the computer vision.
传统的图像校正方法需要在拍摄现场布放若干标定点。
6) Image rectification
图像校正
1.
Research on image rectification in 3D measurement;
三维测量中的照相机图像校正研究
2.
Comparisons of two kinds of image rectification algorithms
两种图像校正算法在实际应用中的比较
补充资料：伪影
伪影
影像学术语。泛指影像失真。依失真的原因可分为：①成像设备设计缺陷所致的伪影，如CT的线束硬化性伪影。②成像设备故障所致伪影，可为机械性故障或数据处理方面故障。③运动或移动伪影，系被检者的不合作所致。④载体媒介所致的传感性伪影。⑤读取、转换系统所致伪影。⑥光学系统所致的伪影。⑦暗室处理所致的伪影。影像学检查中，伪影是需与正常或病变结构的影像鉴别的影像，常需结合成因作出判断。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条