信息块

The method includes steps: digital watermark technique is adopted to hide information of key data in not key data codes of compressed image; under protection of digital watermark, using protective backup for key data detects whether normal transmitted key data is correct or not so as to detect error code; carrying out cyclic mutual backup by using macro blocks in same positions in front and back macro block set; embedding coded motion vector in form of digital watermark to DCT transformation coefficient, and ensuring that video data are not influenced as best as one can; when error code occurs, if key data backup is correct, then the backup replaces former key data; otherwise, using mean value of key data in adjacent macro blocks within same frame to replace former key data approximately.

本发明中，采用数字水印技术在压缩图像的非关键数据编码中隐藏关键数据信息；通过数字水印保护下的关键数据保护备份来检测正常传输的关键数据是否正确，由此来检测传输误码；用前后宏块组中相同位置的宏块进行循环相互备份；对运动向量进行编码，然后以数字水印的形式嵌入到相对不重要的DCT变换系数中，同时保证视频数据尽量不受影响；在误码发生时，如果关键数据备份正确，则直接替代原关键数据，否则用同一帧内相邻宏块的关键数据的平均值近似替代原关键数据。

To avoid blurring of the real edge, this algorithm also combined the gradient information of several block boundaries to distinguish the blockiness and the real edge.

为了避免真实边缘被模糊，该块效应消除算法还联合多个块边界的梯度信息来区分块效应与真实边缘。

Proposes are divided into three altogether. First is system innovation, putting forward the concrete method of construction equilibrium information in our country. It is to decontrol the price of interest rate for dispelling the finance depressing, to reform property right for the division of politics and enterprises, to set up credit system for reduce the trade expenses, to perfect management of loan for evading financial risks, etc. Second is mechanism reform. It adds to mix mechanism of plan and market is inevitable choice of China.

途径分析分成三块，第一块以体制创新为主要内容，提出在我国房地产信贷资金配置中构建相对均衡信息条件的具体办法：放开利率价格、消除金融压抑，推行产权改革、实现政企分开，建立信用制度、降低交易费用，完善信贷管理、规避金融风险等；第二块是以机制改革为主要内容，提出计划加市场的混合机制是我国房地产信贷资金配置机制的必然选择。

It makes full use of the direction information which goes along with the process of the optimum edge detection, and two algorithms: region statistics and center collection are designed to realize the enhancement of the central information by converging the outline of gobbet object to the center of it,and at the same time it effectively resolves the problem of cutting up the outline of the object and attribution of it; the algorithm of barycenter convergence and gobbet feature decision are used to realize the accurate location of the central position.

该方法充分利用最佳边缘检测过程伴生的方向信息，设计了区域统计、中心集聚算法，将团块目标轮廓信息会聚到目标中心以实现中心信息增强，同时有效地解决了目标轮廓分割及归属问题；采用重心聚合和团块特征判定算法，实现中心位置准确识别定位。

In addition, after the detailed analysis of those macro-blocks that had no forward motion estimation, the motion information is given approximatively relative to their forward reference frames. And then, a amendatory partial derivative estimation is given for the inconsecutive image blocks when occlusion and cut had happened.

另外对编码过程中未进行前向运动预测的宏块特性进行了详细的分析，给出了这些宏块相对于前向参考帧的运动信息估计方法，并对时域不连续的图像块给出了一种修正的偏导数估计方法，以此解决遮挡、切换等现象。

In every period, do the following operations:# For each 8*8 block, do the discrete cosine transform, then take out direct current coefficient in each block, using the transformation above for each DC coefficient, the gold stands for the code of the spread-spectrum we use when embedding the different watermark bit in different frames, after all of the watermark information which we want to embed is embedded, then do the inverse discrete cosine transformation, and store the current frame in a new file.

于是利用DCT变换域的这点重要的几何不变性，我们可以推导出一种能够抵抗几何攻击的视频水印算法，即将所需要嵌入的水印信息以127位扩频序列作为辅助，以求和值形式嵌入到DCT变换后的每个宏块的每个DC系数当中，具体嵌入和提取算法如下：根据使用的扩频序列的长度N，基于相关的嵌入器需要选取包含N帧的视频子序列，令这N帧视频子序列作为一个嵌入周期，对于每N帧视频子序列做如下的操作，#即对于每个8×8的像素块进行DCT变换，然后取出每个DCT变换后的直流分量，对于每个DC系数，做如上所述的变换，其中gold为在第k帧中嵌入第i位水印信息时使用的扩频码字值，待将所有需要嵌入的水印信息全部嵌入后，再做反DCT变换，保存当前帧。

The method includes following steps:(1) initial frequency selection;(2) based on modulation mode adopted, the sending end carries out symbol mapping, changes signal spectrum based on label information of sub channel, and sends signal in time domain;(3) based on label information of sub channel, the receiving end carries out equalization for received signal, demodulates signal and accomplishes judgment;(4) carrying out channel estimation or prediction, the receiving end obtains updated information of signal state, and determines whether label information of sub channel is needed to update based on self-adapting judgment rule.

本发明提供了一种移动宽带信道中的自适应选频分块传输方法，该方法包括以下步骤：(1)初始选频；(2)发端根据所采用的调制方式进行符号映射，根据子信道标记信息改变信号频谱，并发送时域信号；(3)收端根据子信道标记信息对接收信号进行均衡，解调信号并完成判决；(4)收端进行信道估计或预测得到更新的信道状态信息，根据自适应判断规则，判断是否需要更新子信道标记信息。

The digital watermark was hided by the modification of DCT coefficient of chromatism in the YC_bC_r, the matrix of chromatism was disparted into 8×8 blocks, which were divided into two types by the density of edge point, then the watermark components with different strength were hided into the blocks according to the classification.

利用彩色图像在YCbCr域内对色差分量的DCT系数的改变加入水印，将色差分量矩阵进行8×8分块，根据每个小块内边缘点的密度将所有小块分成两类，不同类的小块分别按照不同的拉伸因子，加入水印信息。

A free block contains a pointer to the next block in the chain, a record of the size of the block, and then the free space itself; the control information at the beginning is called the "header".

空闲块包含一个指向链表中下一个块的指针、一个块大小的记录和一个指向空闲空间本身的指针。位于块开始处的控制信息称为&头部&。

According to the function of distributed emulator, optical information processing and image multi-object tracking system, the following three aspects were emphasized in this dissertation. Firstly, a vast virtual terrain, ground radar models and canyons were created for the distributed emulator with modeling software Creator. The radars were driven to scan during emulating and the real time terrain code was sent to Radar module. Secondly, an optics channel simulating the optics camera of a virtual aircraft was implemented with simulating software Vega. The 2-D information got from the channel was translated and sent to multi-sensor information fusion system as an optics information source. Thirdly, the dissertation studied some motion estimation methods and analyzed the factors which influence the speed and the precision of the block matching algorithms. Then an improved block matching method was proposed for image multi-object tracking system and applied in the system combined with frame difference method.

论文根据多传感信息融合实验系统中的分布式飞行仿真系统、光学信号处理器和图像多目标跟踪系统三个子系统的功能要求，具体完成了以下三方面的工作：首先利用建模软件Creator创建分布式飞行仿真系统中的大面积地形、场景中的地面雷达模型和峡谷地形，并在仿真过程中实时驱动雷达模型的扫描，同时为后续雷达仿真模块提供实时地形编码；其次利用仿真软件Vega，在分布式仿真系统中为光学信号处理器设计实现了光学通道，模拟飞行器的光学摄像机的功能，并且对由此通道获得的目标二维光学信息进行转化处理，作为光学信息源发送给后续的多传感信息融合器；最后针对图像多目标跟踪系统，在研究图像分割运动估计算法的基础上，通过分析影响块匹配算法速度和精度的因素，改进了块匹配运动估计算法，结合差分法可应用到目标跟踪系统中。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。