关键帧

第二种方法考虑重建误差和压缩率两个目标的竞争性和矛盾性，将关键帧提取问题转换为带约束的多目标优化问题，提出一种基于Pareto多目标遗传算法的关键帧提取方法。

Concerning the competitiveness and contradictory between the reconstruction error and compression , the keyframe extraction is modeled as a multi-objective optimization problem with constraints in the second method .

在角色动画方面，引擎支持骨骼动画和关键帧动画以及Morph动画三种动画模式。

In the aspects of Character Animation , this engine supports the mainstream of the skeletal animation and keyframe animation , as well as the Morph animation model .

基于不变矩和MeanShift聚类的视频关键帧提取

Video key frame extraction using invariant moment and mean shift clustering

类模糊C均值聚类的关键帧提取算法

Key Frames Extraction Based on Simu-FCM Clustering

创建X轴的放缩关键帧

Create a Scale Key on X

在X轴删除位置关键帧

Delete a Position Key on X

将检测到的表情关键帧作为典型的静态表情图像，提出基于弹性模板匹配和改进的K近邻分类算法识别该关键帧图像所对应的表情状态。

Elastic templates matching algorithm and promoted K-nearest neighbors classifier are proposed to recognize these typical expression images .

然后提取每个镜头中的第一个I帧作为关键帧，重构其DC图象；

Secondly , the first I-frame is selected as key-frame , and DC image of the I-frame is reconstructed .

在Z轴删除放缩关键帧

Delete a Scale Key on Z

创建Z轴的旋转关键帧

Create a Rotation Key on Z

文章中利用图与视频结构的相似性，将求关键帧的问题转化为求图的P中心问题；

Using the similarities between graph description and video structure , we can regard the problem of key frame extraction as a problem of finding the P-centre of a graph .

针对如何从视频关键帧中提取语义的问题，提出了一个使用多类支持向量机（SVM）对风光纪录片的关键帧进行分类来提取语义的方法。

A multi-class support vector machine ( SVM ) is used to classify the video key frames of scenery documentary .

文中给出了前端系统结构示意图和基于关键帧DC图象的快速浏览实例。

The system diagram and a real example of rapid browsing prototype based on DC image of key-frame are offered in the last of the paper .

基于DVB的视频关键帧浏览系统的实现

The Implementing of Browsing Key-frames of Video Based on DVB

重点研究与实现了存储中的基于SAN存储架构、迁移策略和检索中的镜头切换检测提取关键帧等关键技术。

This paper researched and realized key technologies of storage framework based on SAN , migration scheme and extracting key frame with shot detection .

基于关键帧的开环-闭环混合FGS编码框架

Hybrid Open-Close Loop FGS Coding Framework Based on Key Reference Frame

首先，对HSV颜色空间的关键帧颜色值进行非均匀量化；然后，统计其颜色直方图。

First , HSV color values of keyframes are quantized non-uniformly . Then color histograms are calculated .

本文主要针对MPEG-4压缩视频进行镜头边界检测和关键帧提取技术的研究。

In this paper , research is focus on shot boundary detection and key frame technology for MPEG-4 compressed video .

该系统采用颜色特征，使用TwinComparison算法实现镜头检测和直方图平均法实现关键帧提取，对关键帧采用K均值聚类算法处理，建立视频数据库索引。

Using color feature , twin comparison algorithm is adopted to detect shot and mean color histogram to extract key frame . And k-means clustering algorithm is adopted to establish data indexing .

首先实现从前端USB摄像头获取视频图像信息，而后对其中的关键帧进行图像分析，判断是否有运动物体进入到监控区域。

First get the video information from USB cameras and then analyse changes between key frames so to determine whether any object enters into the area or not .

用径向基函数构成SVM，进行训练和测试，分类后得到视频关键帧粗略的情感语义。

We construct the SVM with RBF and make exercises and tests . Then we have obtained the rough emotion semantics of the key frames after the classification .

一种基于MP4文件的视频流关键帧索引播放方法

A Preview Method for Video Play Based on Key-Frame Index in MP4 File Format

虽然使用Intra帧为关键帧可以保证较低的编码复杂度，但这种方法也带来了与现行的预测编码相比较低的编码效率。

Although using intra frame as key frame can ensure low coding complexity , this method brings low code efficiency compared to current hybird video coding .

设置关键帧IK参数过滤器

Set Key IK Parameters Filter

首先，本文详细分析了FGS基本框架及其改进框架的特点，针对低延时下的视频应用，提出一种基于关键帧的开环&闭环混合FGS编码框架。

Aiming at the low delay video applications , a key reference frame based hybrid open-close loop FGS coding framework is presented .

首先介绍了目前的关键帧提取技术，然后提出了一种基于运动特征利用模糊推理算法从MPEG视频流中提取关键帧的方法。

In this paper , at first briefly discuss the existing approaches , and then present a motion feature based key frame extracting method using fuzzy reasoning theory for MPEG compressed video .

其次，算法采用自适应阈值，能更好的适应MPEG各种类型影片，克服了常用的算法中只针对一类影片关键帧提取的缺陷。

Moreover , this algorithm using self-adapting threshold , which better adapt to all types of MPEG compressed movies , overcome defects of common algorithm that process only a class of film .

在论述了系统的体系结构后，推导了利用GPS坐标推算里程的算法，该算法通过录入关键帧对应的里程，内插出每帧的里程数，并对其进行修正。

After the introduction of the system structure , the algorithm of computing mileage from the GPS coordinate was deduced . This algorithm interpolated the mileage of every video frame using the inputted mileages of the key video frames , and corrected the errors .

通过应用Flash模拟医用化学实验-离子交换法，测定枸橼酸钠注射液浓度的制作过程，介绍了运动动画、形变动画、关键帧动画和文字处理及声音配置等操作步骤。

This paper discusses the operation procedures in using Flash to simulate medical chemistry experiment ," determining the content of sodium citrate injection with ion-exchange technique ": movement animation , shape-shift animation , key-frame animation , word processing , and sound disposition .

通过数据监视、分析的方法，找出了西门子S7-200系列PLC的PPI协议关键帧格式，可用于上位机、现场设备与PLC之间通讯。

By way of data monitor and analyze , found out the keyframes format of PPI protocol on Siemens S7-200 series PLC , it can be use in communication of upper computer , field device with a PLC .