实践表明，该算法既能准确提取边界形状的特征关键点，又保证了重构后曲面的光滑规整。
It is proved this algorithm can not only extract the key points which can represent border shape, but also guarantee the reconstructed model have smooth surfaces.
实验表明，在SIFT中引入分数阶微积分的应用，能够得到更多的特征关键点，提高图像匹配的正确性。
Compared with the original SIFT, the simulation results show that the proposed algorithm can detect more key points, and improves the accuracy of image matching.
我将以强调两点特征开始会话，自我觉得对于帮助老师们在教室里开始使用wiki很关键的两点：1 .免费，2.简单。
I'll start the conversation by highlighting two features that I feel are key to helping teachers get started with using wikis in their classrooms: 1 the cost of 'free' 2 simplicity.
特征点精确定位是解决这些问题的关键。
Precise facial feature points extraction is the key to solve these problems.
然后基于规则筛选出关键特征点集，通过两步最小二乘法拟合牙弓线。
Thirdly, the feature point set is filtered by the rule and two-step curve fitting method is used to obtain the dental arch form.
二维特征点的检测和提取是进行图像配准的关键技术。
The detection and extraction of feature points are the basis technology in image registration.
在遥感多图像配准过程中特征点的选择是一个关键的步骤。
Selecting the characteristic points is one of the critical steps during the image registration for remote sensing.
针对组合形状零件几何尺寸测量中的关键问题—轮廓识别，提出了一种基于弧长的轮廓特征点提取的方法。
An approach to extract feature points on the boundary based on length of arc is proposed in view of the key problem of measuring composite-shape parts.
而这一点也确实是“正当性”一词的关键特征。
板块运动理论的一个关键点就是在地质历史的尺度内，海洋盆地的开合是因为板块转换，具有转换特征。
A key aspect of plate tectonic theory is that on geologic time scales ocean basins are transient features, opening and closing as plates shift.
结果表明，该方法计算简单，以较少的关键点实现了对向量字轮廓的较好拟合，基本保持了字形特征。
The result shows that this method is very simple and can make better approach of vector contour character with less critical point, and it also can keep the character of vector contour characters.
下肢想象动作的脑电特征提取是基于脑-机接口技术实现下肢运动神经重建的关键点和难点。
EEG feature extraction from imaginary lower limb motor tasks is the key and difficult point of motor nerve reconstruction for lower limbs based on brain-computer interface technology.
因此，特征点精确定位是人脸应用的关键，是研究的重点。
So, how to detect the features accurately is the key to the face application and the emphasis of our research.
用块匹配法跟踪了特征区域的关键点；
Secondly, the method of block-match is used to track the critical feature points.
系统特性曲线特征点的确定，是正确判定系统运行状态的关键。
Defining the characteristic points in a system property curve is the key to judge the run-state of the system.
因为癌细胞的一个关键特征就是无休止生长，因此该研究为新的治疗提供了潜在靶点。
Since a key characteristic of cancer cells is unchecked growth, the research identifies potential targets for new treatments.
人脸部特征点的定位是人脸识别中的关键步骤，定位准确与否直接关系到后续应用的可靠性。
Human facial features positioning is a key stage in face recognition and the accuracy of the positioning directly relates to the reliability of subsequent applications.
轮胎印痕图像增强是进行车辆胎痕图像特征点提取及匹配最为关键的预处理阶段。
Enhancement of tire prints image is the most critical preprocessing stage before feature extraction and points matching.
实验结果表明，基于手势边缘关键点特征的识别算法具有较好的识别效率，识别率近85%。
The experiment result proves that hand gesture recognition algorithm based on key points of gesture image is very efficient. And the recognition ratio is proved 85% accuracy.
本文系统研究了立体视觉三维测量中摄像机定标、特征点的提取与匹配、图像处理和三维计算等关键技术。
The key problems such as cameral calibration, characteristics obtaining and matching, image processing and 3D information calculation etc.
建筑策略的关键点是位置的自然特征以及材料色彩的使用。
The key notion of the architectural strategy is the locations natural features and the use of a limited material palette.
本文改进算法的最关键在于对特征点提取算法和特征匹配算法上的改进。
The improvement on feature points extraction and feature points matching are the key points of the improved algorithm.
高性能的图像处理技术是基于视觉的多点触摸技术的关键，对于特征点的检测和跟踪是完成多点触摸系统的基础。
The fundamental technique of vision-based multi-touch technique is the high performance image processing, the basic of the multi-touch system is the blob recognition and tracking.
深入研究了该算法初始形状选择、定位与特征点局部特征描述两个关键问题。
The initial shape selection, location and the local feature description around the feature points are discussed deeply.
首先根据尺度不变特征变换方法从图像中提取关键点作为特征点，然后进行左右双目图像的特征点匹配和视差的恢复。
Then use these feature points for binocular matching thus getting distance information of the scene by the calculation of differences between match points in two images.
在人脸检测的基础上，面部关键的特征点定位试图定位人脸面部主要特征点的位置以及眼睛和嘴巴等主要器官的形状信息。
It aims to locate the facial feature points and the shape information of eyes, mouth and so on based on the facial detect.
在指纹匹配中，从指纹图像中自动和可靠地提取特征点是一个关键性步骤。
Automatic and reliable extraction of minutiae from fingerprint images is a critical step in fingerprint matching.
人脸特征点定位就是对人脸的形状和人脸局部特征(如眉毛、眼睛、鼻子和嘴巴等)的位置、关键点或轮廓线进行描述。
It can provide the description for face shape and the information of the local features, such as eyebrows, eyes, nose, mouth and so on.
人脸特征点定位就是对人脸的形状和人脸局部特征(如眉毛、眼睛、鼻子和嘴巴等)的位置、关键点或轮廓线进行描述。
It can provide the description for face shape and the information of the local features, such as eyebrows, eyes, nose, mouth and so on.
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