时间分割

The original video is spitted into a series of frame groups,for each frame in the group,the points of contour shape are described by MPEG-7,and taking advantage of hash function to calculate the keys between those points in the 1D- DFT transform domain and the watermark signals.

在该算法中，原始视频数据被分割成等帧数的视频组，利用MPEG-7的轮廓编码计算每个视频帧的主要物体轮廓坐标点集合；接着通过傅立叶变换得到该帧轮廓点形状不变量，利用哈希的方法计算水印信号并将这些不变量的有效值作为密钥之一；再对整个视频组的轮廓点进行傅立叶变换，得到其时间轴上的有效不变域，将水印信号嵌入在这个不变域的中频部分以确保了水印的鲁棒性。

In each subperiod, the DUMOP is seen as a static multi-objective optimization problem by taking the time parameter fixed.

该方法首先将DUMOP的时间变量区间进行了等间隔分割，在每个子区间上把DUMOP近似为静态多目标优化问题。

A special feature of the maps are the curves of constant umbral eclipse duration,i.e., totality, which are plotted within the path at 1 min increments.

地图有个特殊的特征是阴影区的曲线持续时间，其按每分钟为单位进行分割。

In this study, CFD modeling mixing of water in a unbaffled vessel agitated by a four-bladed Rushton turbine and the affects of parameters of impeller on flow has been carried out by using the proprietary FLUENT.

AMPS之优点为良好的绘图功能及分割网格模式，运用点线面体四种工具将模型绘出，接著依照分析类型选择切割网格方式，能有效节省分析时间。

There are some disadvantages in segmenting and selecting while neglecting the characteristics of satellite-based sensor, which leads to unefficient utilization of time window; the end time is easyily postponed.

目前大多数国家的卫星任务调度系统都只考虑解决点目标的观测任务，只有美、法少数几个国家研究并解决了区域目标的分割与优选问题，但现有方法对星载传感器成像特性考虑得不够，时间窗口利用率较低，易导致任务完成期拖后。

The forecast algorithm is based on the peculiarity of 3D images i.e the deformation of the contour along the space or time axis is continuous in 3D images. The forecast algorithm analyzes the trend of the deformation of the contour in the segmented images, then prognosticates the location and the shape of the contour in the next image.

三维图像中物体的轮廓沿着空间轴或时间轴的位移和形变是连续的，该算法根据这一特性，利用前几幅图的分割结果来预测当前图像中物体轮廓的位置和形状，弥补了主动轮廓模型搜索范围小的缺点。

The forecast algorithm is based on the peculiarity of 3 imag es i.e the deformation of the contour along the space or time axis is continuous in 3 imag es . The forecast algorithm analyz es the trend of the deformation of the contour in the segmented imag es , then prognosticates the location and the shape of the contour in the next image .

三维图像中物体的轮廓沿着空间轴或时间轴的位移和形变是连续的，该算法根据这一特性，利用前几幅图的分割结果来预测当前图像中物体轮廓的位置和形状，弥补了主动轮廓模型搜索范围小的缺点。

The forecast algorithm is based on the peculiarity of 3D imag es i.e the deformation of the contour along the space or time axis is continuous in 3D imag es . The forecast algorithm analyz es the trend of the deformation of the contour in the segmented imag es , then prognosticates the location and the shape of the contour in the next image .

三维图像中物体的轮廓沿着空间轴或时间轴的位移和形变是连续的，该算法根据这一特性，利用前几幅图的分割结果来预测当前图像中物体轮廓的位置和形状，弥补了主动轮廓模型搜索范围小的缺点。

Application of ICHA cement in goat lateral tibial plateau compression fracture: The prevalence and degree of fracture subsidence was significantly reduced at the two time-points in the defects treated with ICHA cement compared with those filled with autograft. X-ray show the cement resorbed rapidly. There were no significantly differences in fracture stiffness between the two treatment groups at the two time-points.

ICHA水泥在羊外侧胫骨平台压缩性骨折中的应用：大体观察发现3个月和6个月两个时间点的自体骨组关节面出现塌陷的程度和数量均较骨水泥组严重。X光片示自体骨组3个月时已基本愈合，6个月时完全愈合，骨水泥组3个月时水泥被吸收分割成几块，边缘模糊，6个月时大部分吸收殆尽。

The experimental result indicates 2-D Entropy Method of Image Segmentation Based on Chaotic Particle Swarm Optimization algorithm reduces the searching time significantly enhances the convergency factor.

实验结果表明了基于混沌粒子群优化算法的二维熵图像分割法用于阈值寻优减少了搜索时间，提高了收敛率。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。