本文在总结和分析现有人脸检测技术的基础上,重点研究了基于矩形特征的人脸检测技术及以此为基础并结合运动信息的动态人脸检测技术。
Relying on the analysis of existed face detection techniques, this paper mainly describes face detection based on rectangle feature and dynamic face detection combined with motion information.
为了充分利用目标的运动信息,连续多帧图像的融合特征图像进行能量累积,达到进一步提高检测概率,降低虚警率。
In order to sufficiently utilize the motion information, the feature images of multi-frame are cumulated to improve the detection probability and reduce the false alarm rate.
光子怎样被转化成电信号?视网膜如何提取物体的形状、颜色和运动特征?大脑又是如何对视觉信息进行处理的?
How is photon converted to electric signals? How does the retina extract information about form, color and motion? How does the brain process visual information?
利用最小外接矩形和灰度信息作为各目标的特征向量,匹配各目标对象,以求取各目标运动速度。
The outer rectangular bounds and tonal-gradation information are employed to be eigenvectors to match respective targets, so as to get the speed of them.
该算法以抖动调制为基础,以视频帧的运动特征和纹理特征作为边信息,自适应地确定抖动调制的量化步长。
In the algorithm, dither modulation is adopted, and the motion feature and texture feature are used as side information to determine the adaptive quantification step of every frame.
而通过采用相关计算进一步细分灰度投影数据,可以提高图像运动特征位置信息的精度,获得亚像元级的图像运动矢量。
Using correlation calculation to further subdivide gray project data, precision of image motion characteristic position information was improved, and sub pixel image motion vector could be gotten.
通过检测道路上的运动目标并利用目标的运动信息和外形特征进行车辆识别。
Firstly, moving objects on the roadway are detected. Then, the vehicles are recognized based on their motion information and shape characteristics.
整个避碰规划系统包括声纳探测目标、目标跟踪、特征信息提取、目标运动估计、避碰算法等部分。
The system includes such modules as obstacle detection by FLS, tracking, motion estimation and planning algorithms.
针对运动约束与运动方程构成的系统,利用特征值分析方法给出了其信息矩阵的上下界限。
For the stochastic system of the dynamic equation and the kinematic constraint, the upper and lower bounds on its information matrix are given, via eigenvalue analysis.
人脸检测是指在视频序列或图像中寻找所有人脸信息,并确定人脸大小、位置、运动轨迹、姿态,进一步对人脸上的眼睛、嘴唇等特征进行提取的过程。
Face detection find faces information in the video sequence or image and determine facial size, position, trajectory, attitude, and further human face eyes, lips and other features extraction process.
该算法充分利用了运动目标的特征信息和运动信息,具有鲁棒性强,跟踪精度高的特点。
The algorithm takes into account of feature information and motion information of moving targets, which owns an outstanding veracity and tolerance, and high accuracy.
使用现有的产品数据表达与交换标准STEP只能描述CAD模型几何、拓扑和部分运动学信息,对多刚体动力学特征的描述一直是特征模型中的一个空白。
But there are only basic info of geometry, topology and partial kinematics in the CAD model in STEP. The description on feature of multi-rigid-body dynamics is hardly blank.
从本体论的信息定义着手,在一般信息论的基础上,系统地论述了生态系统中信息运动的基本问题及其特征,探讨了信息运动的一般规律。
Information in ecosystem is defined from the point of ontology. The basic concepts and characters of information flow in ecosystem are studied systematically on the base of general information theory.
从本体论的信息定义着手,在一般信息论的基础上,系统地论述了生态系统中信息运动的基本问题及其特征,探讨了信息运动的一般规律。
Information in ecosystem is defined from the point of ontology. The basic concepts and characters of information flow in ecosystem are studied systematically on the base of general information theory.
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