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确定准确位置

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Objective To explore an effective methods for percutaneous biopsy needle fixing which is guided by CT.Methods After the biopsy needle gets to the destination along with the aforehand route,the unique designs of hollow cylinder and the strip can fix the biopsy needle effectively.

在CT导引下,经皮穿刺切割活检术中,活检针沿预置路径进入靶点后,再经CT扫描确定活检针位置及深度是否准确,通常的方法是嘱患者家属或医务人员用手扶住活检针的控制部。

A base address is accompanied by an offset value that is added to the base to determine the exact locationof the .

基址伴随着一个加到基上的偏移值来确定信息准确的位置。

The tracking key can accurately determines the current location and coordinates of the device within 2.5 meters error margin and able to records the location data at the frequency of every second.

跟踪的关键,可以准确地确定当前的位置和坐标,该装置内的2.5米误差,并能记录的位置数据,在频次为每秒。

In the dissertation, we propose a practical method of vehiclelogo location from coarse to fine. The approximate scope of vehiclelogo is first confirmed by preexistent knowledge, then its finer position is found by edge detection and morphology operators, and finally it is located precisely by relation match operator in a very small scope.

本文从人眼的视觉特性出发,提出了一种实用的从粗到精的车标定位算法,即先根据先验知识确定车标的大致范围,再运用图像处理中的边缘检测和形态算子确定较准确的车标位置,最后在极小的范围内用相关匹配算子得到车标的精确位置。

IRHV was demonstrated in 153/270(56.7%), CHV was demonstrated in 68/270(25.2%). Conclusions Portal and hepatic vein can be displayed accurately by 3D 64-MSCT angiography , which could measure diameter or other information about the veins at any cross-section. Meanwhile, more anatomic information could be provided for hepatic segments resection and liver transplantation directively. Portal and hepatic vein diseases could be diagnosed by 3D 64-MSCTA accurately and directly also.

肝脏门静脉及肝静脉的多层螺旋CT血管成像能准确、立体地显示大血管的空间位置关系,在不同的切面上准确测量血管的直径或其他的解剖学数据,为临床提供大量有用的解剖学信息,对确定肝脏病灶的叶段切除和肝移植的手术方式具有指导价值,同时还能直观、准确地诊断肝脏门静脉及肝静脉的病变。

E'jina basin is one of the most arid area in the west of Inner Mongolia, and the ecologic environment is very weak, and which has been weakened by human activities.

文章摘要:地下微生境位置的确定对于干旱区植被生态系统的恢复具有重要意义,但目前尚没有准确、简单可行的确定方法。

So the accuracy of structured light methods hinges on the ability to locate the "center" of the 3D information. New method presented in this paper starts by convolving a given image with masks in a selected number of directions.

但是由于物体表面形状、反射特性比较复杂,而传统的确定结构光条纹中心位置的方法极值法、门限法、重心法、高斯拟合法等都存在不足,这就使得结构光条纹中心位置的准确检测成为影响三维信息获取精度的关键问题之一。

By this, we can obtain the space information, however, because of the body sharp and reflex characters are more complicated, and the traditional way which used for detecting the center of structured light have some weakness. So the accuracy of structured light methods hinges on the ability to locate the "center" of the 3D information. New method presented in this paper starts by convolving a given image with masks in a selected number of directions.

但是由于物体表面形状、反射特性比较复杂,而传统的确定结构光条纹中心位置的方法极值法、门限法、重心法、高斯拟合法等都存在不足,这就使得结构光条纹中心位置的准确检测成为影响三维信息获取精度的关键问题之一。

Sothe accuracy of structured light methods hinges on the ability tolocate the "center" of the 3D information. New method presented inthis paper starts by convolving a given image with masks in aselected number of directions.

但是由于物体表面形状、反射特性比较复杂,而传统的确定结构光条纹中心位置的方法极值法、门限法、重心法、高斯拟合法等都存在不足,这就使得结构光条纹中心位置的准确检测成为影响三维信息获取精度的关键问题之一。

Combustion control and performance evaluation for scramjets need effective measurement information, therefore it is important to choose the optimal location and number of sensors. This problem is a combinatorial optimization problem which is difficult to solve.

超燃冲压发动机的燃烧控制和性能评估需要有效的燃烧室测量信息,而如何确定传感器的最佳位置和数量是非常重要的,要求选择最小的传感器数目和最佳的测量位置来较准确的描述燃烧室工作特性,这是一个组合优化问题,直接求解比较复杂。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。