提取信息

Studies on Satellite Snowcover Moritoring and Snowmelt Runoff Forecasting in Upper Reachers of the yellow River,Proceeding of Asian Symposium on Remote Sensing,1991

冯学智，曾群柱，曹梅盛，地物波谱数据文件库的设计与管理，科学出版社，19887。冯学智，T。 J。 Elsey，遥感图象的增强与冻土环境信息的提取方法，科学出版社，1988

In this paper,the advanced microwave scanning radiometer data and the polynya signature simulation method are used to detect the sea ice in the Bohai Sea and to extract the sea ice edge information.

利用高级微波扫描辐射计数据和冰间湖信号模拟算法探测渤海海冰，提取海冰外缘线信息。

In this paper we chose the passive ranging which is based on bio-stereo vision from many methods of visual ranging,according to the feature of the highway. The main obstacle on highway - vehicle and its position can be detected by image segmentation pattern recognition and some pre-experience.

本论文中，根据课题实验环境的特点，选择了其中基于双目立体视觉原理的被动测距的方法，通过图像分割和模式识别技术并结合一定的先验经验完成高速公路上主要障碍物—汽车的识别提取，最终得到障碍物的位置信息。

Blind digital image forensics,a technology for detecting image authenticity and source without relying on any pre-extraction or pre-embedded information,is emerging as a new hotspot with broad prospect in the multimedia security field.

数字图像盲取证技术作为一种不依赖任何预签名提取或预嵌入信息来鉴别图像真伪和来源的技术，正逐步成为多媒体安全领域新的研究热点，且有着广泛的应用前景。

Blind digital image forensics, a technology for detecting image authenticity and source without relying on any pre-extraction or pre-embedded information, is emerging as a new hotspot with broad prospect in the multimedia security field.

摘要数字图像盲取证技术作为一种不依赖任何预签名提取或预嵌入信息来鉴别图像真伪和来源的技术，正逐步成为多媒体安全领域新的研究热点，且有着广泛的应用前景。

The first step is to eliminate all kinds of noises generated in the process of collecting traffic video by means of median filter; Then we finish image sharpening with Laplace operator to clarify edges of the video images; finally, image contrast is enhanced with the help of the second-developing packet SDK-2000, which is provided by our video-collecting card. This way, much more satisfactory images are obtained, and preparation is already made for the following work, thats image analyse.Thirdly, according to the characteristics of our system, mobile objects are distinguished by means of image difference. Then some features such as regional area, length and width of traffic objects are selected and extracted. After processing of scale filter, we successfully recognize those moving vehicles appearing in the monitoring regions.Fourthly, some corresponding algorithms are brought forward to automatically identify those familiar traffic peccancies of many sorts, such as red light violation, yellow-line covering, parking in prohibited spots, over-speed running and converse running. Then we find means to snap pictures and to intercept videos of the spot, and collect a lot of relevant information such as the time, the block, the running direction and the weather conditions and so on. According to this information, our traffic management departments could make correct decisions on punishing those drivers who have broken the traffic rules.Considering the complexity of traffic environments on particular blocks, in order to monitor other traffic peccancies effectively, we also have designed the scheme to carry out traffic monitoring by manual.

首先运用中值滤波法对视频图像进行去噪处理，然后采用二阶差分法进行图像锐化，再通过视频捕获卡携带的二次软件开发包SDK-2000进行对比度增强，从而得到比较理想的图像，为后续的图像分析工作做准备；第三，根据系统特点，通过背景图像差分法，分割出监测区中的运动目标，然后对交通目标的区域面积、长度和宽度等进行特征提取，再经过尺度滤波处理，从而自动识别出机动车辆目标：第四，分别设计相应的算法，实现对闯红灯、压黄线、违章停车、违章超速及违章逆行等常见的交通车辆违章行为的自动识别，并自动抓拍违章现场，截取违章视频，采集其它相关违章信息，为交通执法部门进行交通违章处罚提供有力依据：考虑到特殊路段特殊环境下的交通复杂性，为了有效监控其它类型的交通违章行为，本文还设计并实现了对交通违章的手动监控模式。

The phenomenal use of the internet as a vehicle for improved communication, access to information and e-commerce has led to the claim that the internet could be used as either a replacement to attendance voting or as an additional vote-casting option.

这种以互联网为载体作为一种完善沟通，信息提取，和电子商务的广泛的使用，已经引起一种倡导，倡导网络可以用来代替现场投票，或者成为另一种投票方式。

Real GPS observations were used to test the performance of the proposed filter.The results show that the method has the potential to improve the quality of GPS results,which can successfully extract the desired vibration signals from the point coordinat...

对GPS实际观测资料进行分析，结果表明：采用该方法不仅能从坐标序列中成功提取结构振动信息，也能正确分离载波相位双差观测值的残差序列中的结构振动和多路径效应影响，因而在提高GPS定位精度上具有较大的应用潜力。

Examine from satellite altimetery data inshore absolute sea of area change data and with testing, may is it tide gauge station where one stays coast absolute land change information to obtain.

从卫星测高数据序列中提取近海区域的绝对海面变化数据并且与临近的验潮站相对海面变化数据进行对比，有可能获取验潮站所在海岸地带的绝对地面变化信息。

Using j and v tidal models and harmonic analyses to obtain the harmonic constants of main tidal components in the China seas from TOPEX/POSDEIDON data, verifing the results with the global tidal model CSR3.0 qualitatively and data from tide gauge stations quantitatively, the paper shows that the results computed here are more reasonable and are better than the results of the global tidal model for the China seas.

基于TOPEX/POSEIDON卫星高度计资料，利用j，v潮汐模型和调和分析法提取中国浅海潮汐信息，与TOPEX/POSEIDON卫星自带的全球潮汐模式CSR3.0和验潮站资料分别进行定性和定量的对比，说明在中国浅海的计算结果优于全球潮汐模式。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失