1) Sonographic pattern
超声声像型
2) B-ultrasonic wave type
B超声像图分型
1.
The relations between the degree hepatic fibrosis and clinical type,B-ultrasonic wave type in patients with hepatohenticular degeneration;
肝豆状核变性患者肝纤维化程度与临床分型及B超声像图分型的关系
3) Ultrasonography
[英][,ʌltrəsə'nɔɡrəfi] [美][,ʌltrəsə'nɑɡrəfi]
超声声像图
1.
Methods:202 patients with thyroid adenoma or struma nodosa were examined with ultrasonography pre operation and with pathomorphology post operation.
目的 :探讨甲状腺腺瘤与结节性甲状腺肿的超声声像图特征 ,找出特征性的表现以提高超声的诊断水平。
4) ultrasound imaging
超声成像
1.
However,by applying gyro-positioning technique to locate artificial magnetic field,the ultrasound imaging produced by measurement processing,where AC(Alternating Current) signal is induced by rotated coils in the artificial magnetic field as the triggering signal for image scanning,can quickly and accurately ascertain the fault.
超声成像测井技术是通过向井壁连续发射和接收超声波,把接收到的超声波转换成电信号,作为图像信号。
2.
To heighten the frame rate of ultrasound imaging system,the thesis focused on the dual beamformation technique and its hardware implementation was introduced.
以提高超声成像系统帧频为目标,研究了双波束合成技术及其硬件实现方法。
3.
Employing the impulse response model of ultrasound transducer and the modulating-demodulating principle of FM signal,the simulation for ultrasound imaging is carried out.
利用超声传感器的冲激响应模型和调频信号成像的调频解调原理,进行了超声成像的仿真研究。
5) ultrasonic image
超声成像
1.
To realize this automatic test system, not only the newly developed automation technology and ultrasonic signal processing technique, but also the ultrasonic image processing technique was applicated.
同时,将超声成像和声图像处理技术应用到本系统中,实现了环形电子束焊缝超声检测的自动化。
6) ultrasound images
超声图像
1.
Objective To promote stability and accuracy of gradient vector flow (GVF) deformable models by improving external potential force field of ultrasound images under speckle noisy environments.
结果通过二值加噪图像和心脏超声图像的实验,验证了该方法的捕捉范围和处理噪声方面优于GVF。
2.
Objective To improve the flexibility and stability of the filter in speckle reduction of ultrasound images.
方法使用二状态的瑞利、高斯混合分布对超声图像灰度分布进行拟合,并采用期望值最大化(expectation maximization,EM)算法实现混合分布的分解;根据分解结果预测图像中斑点噪声均匀分布的区域;通过对均匀区域统计特性的分析获取各向异性扩散的扩散参数。
3.
This article presents an algorithm for semiautomatic segmentation of ultrasound images combining user intervention into the B spline snake models using a new kind of force field and a new control point insertion strategy.
提出了超声图像半自动分割的一种新方法。
补充资料:声像
声像
Acoustical image
声像(aeoustieal image) 若有一个点声源位于大面积反射面的一侧,则可认为在该反射面的另一侧,在点声源对反射面所作垂线的延长线上等距离处有一个“声像”,就像大家熟悉的光像一样。反射面对声波的影响通常就能用这种声像来估计。反射本领很好的墙(例如,灰泥墙、混凝土墙和砖石墙,它们反射人射声能的97一99%)前面的声源.其声像的‘强度,几乎与声源自己的强度相等,并且同相。为了求得空间某点上声源和反射面共同作用的总效果,只需将声源自己的效果与假想的等强度声像的效果相加。若还有第二个反射面存在,上述的所谓一次声像也就会有它自己的像,叫做二次声像,二次声像在第二个反射面另一侧的等距离处。同样,二次声像的像称为三次声像,等等。虽然这种方法只有当反射面是非吸收的情况下才是精确的,但它在研究房间中声波行为的问题时常常有很大的帮助。参阅“光学像,,(叩ti-eal image)条。 [哈里斯(C.M.Harris)撰]
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