查询词典 curvilinear coordinates

Two kinds of image retrieval reference frames are compared mathematically, and it is found that the polar coordinates facilitate processing multi-scale images.

采用数学分析的方法比较了图像检索算法中常用的2种坐标系，发现极坐标更加有利于图像的多尺度处理。

Restoration of forward motion blurred image based on polar coordinates.

基于坐标变换的相向运动图像模糊复原方法。

They can also overcome the influence of pseudo acceleration casued by polar coordinates.

另外 ，目标机动跟踪能力的强弱，不仅和所采用的机动模型有关，也与所选择的坐标系有关。

It is mainly caused by Sine and Cosine functions using in polar coordinates which have non-linear character,accordingly multiply is inevitable.

这主要是因为极坐标所用到的正弦函数和余弦函数具有非线性特性，使将来运算基本单元的乘法不可避免。

In order to meet geodesy, geophysics, space science needs, with the astronomical method of continuous measurement and the provision of polar coordinates work.

为满足大地测量、地球物理、空间科学等方面的需要，用天文方法连续测定和提供地极坐标的工作。

In this approach, the rule of screening out threatening target is set through analysis of the target motion characteristics in polar coordinates.

算法通过分析二维纯方位目标运动的特点设定威胁目标的筛选规则，利用改进的启发式算法在最短时间内对威胁目标进行航迹起始。

Using polar coordinates to optimize the fractal model, a novel segmentation algorithm is proposed to deal with extended target under complex environment.

用极形态算子优化分形模型，提出了一种复杂背景下的扩展目标分割新算法。

The polar coordinates method for the observation and computation of float effective distance is analyzed.

对极坐标法进行浮标有效行程观测和计算进行研究，根据基点所处位置是否在浮标中断面上和水面比降的大小，分4种情况讨论了浮标有效行程的确定方法，并给出相关算例。

The method comprises the following: a step of calibrating a camera, which is to utilize a Taylor series model to calibrate an omni-directional vision sensor so as to obtain internal parameters of the camera; a step of obtaining epipolar geometric relation, which comprises the steps of calculating an essential matrix between binocular omni-directional cameras and extracting the rotation and translation component of the cameras; a step of correcting an outer polar line, which is to correct the outer polar line of a shot omni-directional stereo image so as to allow a corrected polar quadratic curve to coincide with an image scan line; and a step of three-dimensional reconstruction, which is to carry out feature point matching to the corrected stereo image and calculate the three-dimensional coordinates of points according to matching results.

该方法的步骤包括：相机标定：利用泰勒级数模型对全向视觉传感器进行标定，得到相机内参；对极几何关系求取：包括计算双目全向相机之间的本质矩阵，并从中提取相机的旋转和平移分量；外极线校正：对所拍摄的全向立体图像对进行外极线校正，使校正后的极二次曲线与图像扫描线重合；三维重建：对校正后的立体图像对进行特征点匹配，根据匹配结果计算点的三维坐标。

Distributing control point used of straight closed traverse and using of distance measurement polar coordinates and near distance high degree level measuring method to do deformation measuring for the plugging water curtain wall.

用直伸闭合导线布设控制点，以测距极坐标和近距高等级水准测量方法对堵水帷幕墙进行变形测量，有利于提高观测精度，能消除横向误差对监测点位精度的影响，精度及效果较

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。