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- gradient direction information 梯度方向信息
- However in reality technology always shift along the smallest gradient direction. 而现实中，技术又总是首先沿梯度最小的方向转移。
- FGM is anisotropy .It is assumed that all the material properties only depend on the gradient direction. 取材料为各向异性,材料参数沿梯度方向变化,利用界面连续条件,边界条件,得出了结构的变形与应力。
- Directional snake can improve the detecting capability by charactering image features not only using gradient but also using the directional information of gradient vector. 方向蛇模型的优点是在模型中不仅运用图像的梯度特性,还充分运用梯度的方向特性,从而提高了图像分割的准确性。
- According to the circularity of iris and the gray distribution of an eye image,an arithmetic for iris location based on gradient direction was put forward. 根据虹膜的环状结构特性以及眼部图像的灰度分布特点,提出了基于梯度方向信息的虹膜定位方法。
- The influence of different diffuse gradient direction in different lesions of human brain on diffusion-weighted image has become one of the focus researches of neuroradiology. 不同弥散梯度方向在磁共振弥散加权成像对人脑不同部位的表观弥散系数的影响成为研究的重点之一。
- The lamps supply the height and direction information to thepilot when helicopter step in air for filling. 该灯在直升机悬停加油时为驾驶员提供航向和飞行高度基准信息。
- In the forward step, the eikonal equation was solved by finite-difference method.Raypaths were determined in the minus gradient direction of travel time. 正演采用快速的有限差分求解程函方程的方法求取旅行时，利用旅行时的负梯度方向求取射线路径。
- A storage approach allowing direct information inquiry from temporary or permanent storage devices. 一种存储方法,它允许从暂时性或永久性存储设备中直接询问信息。
- This paper presents a new image compression method based on fingerprint direction information. 提出了一种根据指纹图象方向信息进行图象压缩的方法。
- The Hall elements of the A3423 are spaced 1.63 mm apart, which provides excellent speed and direction information for small-geometry targets. A3423霍尔元件的间距为1.;63 mm;从而可为小型几何尺寸目标提供卓越的速度及方向信息。
- The algorithm uses direction masks based on classical Sobel masks in converting gray into gradient images and applies the polynomial interpolation to subpixel edge detecting at the gradient direction of edge on gradient images. 本算法应用在经典Sobel算子基础上构造出的方向模板;对灰度图像进行处理;得到梯度图像;然后在梯度图像上沿目标边缘的梯度方向进行多项式插值法亚像素细分计算;对目标边缘进行亚像素精确定位.
- Based on the weft direction information extracted from the image, hierarchical Hough transform is used to estimate the skew angle to get a satisfying precision. 该算法在提取图像中的纬纱走向信息的基础上，运用层次Hough变换来检测倾斜角度，以达到要求的检测精度。
- Conclusion ADC and signal intensity in lentiform nucleus were not affected by diffusion gradient directions. 结论 豆状核信号强度及其ADC值不受弥散梯度方向影响;
- The two common means for segmenting the fingerprint image are variance method and direction method, which utilize its gray characteristic and direction information, respectively. 摘要在研究和分析方差法和方向法的基础上，提出了一种指纹图像分割的新方法。
- The data value and its first and second directional derivatives are used along the gradient direction to synthesize a curve function aimed at regular volumetric data. 该方法根据体数据集的梯度变化特点，利用数据值、梯度和沿样度方向的二阶导数拟合曲线函数来生成传输函数。
- This is a useful variable to employ when you have directional information to convey (up or down, backward or forward). 当我们有和方向有关的信息需要传达时（上或下，前进或后退），方位是个很有用的变量。
- The results provide directive information for equipment operation of underwater acoustic warfare in formation of ship. 研究结果可为水声对抗器材在舰艇编队条件下的作战使用提供科学依据。
- An iris location method based on gradient direction 一种基于梯度方向信息的虹膜定位方法
- We extract eye open/closed statuses and gaze directions information as our visual cues. 在眼睛闭合侦测部份，我们测试了两种方法并比较其准确性。
