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1、Three representatives important thought is the essence of assuming power for the people. Hu Jintao pointed out that comrade: study and implement the three represents important thought must adhere to assuming power for the people. This measure really learned, is not really practice the three represen
2、ts important thought the most important symbol. Today, what we talk about is eight characters: assuming power for the people . First, profound comprehension of assuming power for the people are the scientific connotations of a political party, a regime of public or private, for the people or officia
3、l, is the key to bears on decisions. People, party, regime, and career; the heart back, weak political parties, power failure, defeat. This is Hu Jintao comrades speech reveals a truth. 1, meaning stick and assumes power for the people, that is always on the point of view of people, representative a
4、nd committed to realizing the fundamental interests of the overwhelming majority of working people. The serve, is the partys theory, line, program, principles, policies and all work, should reflect the common interests of Nations and peoples, and reflects the common aspirations and demands of all th
5、e people. Power to the people, is the power of our party, to organize and guide the broad masses of the people and promote development, and prosperity, well-being, building a modern socialist material civilization, political civilization and spiritual civilization, so that the broad masses of the pe
6、ople enjoy full social development and progress and the achievements of modern civilization. The serve, indicates that our party is from the people, rooted in the people, to serve the people. The party representing the interests of people. In addition to the peoples interests, the party does not hav
7、e its own special interests at all. Power to the people, determines the object of our party service is only the most broad masses of the people, not just for some services, services for the few, not just to a few people for a service, must not formation of vested interest groups in the party. The co
8、ncept of people in different countries have different content and different historical periods. In the new historical period of reform and opening up, peoples team never so large. Ruling party not only for the workers, peasants, intellectuals, military service, but also as builders of socialism of t
9、he new services in the reform, including private enterprise entrepreneurs and technical personnel employed by foreign-funded enterprises management personnel, the self-employed, private entrepreneurs, intermediaries of the practitioners, as well as freelance workers. With the development of socialis
10、t economy, politics and culture will constantly emerging new industry, occupation, as long as they create wealth for the community, providing services to meet the needs of society and the people, we are all builders of socialism, the ruling party will serve them. This is embodiment of the party adva
11、nced nature of the working class. Party or a party for private; assuming power for the people, and视频监控硬盘录像一般要求保留半个月，部份重要机构要求达1-3个月不等。由于采集卡和监控软件的不同，录制图像的时间也不就不同，但是120GB的硬盘至少也可以录制150小时！如果用普通质量压缩甚至可以超过200小时。 硬盘占用时间计算：以正常画面质量计算，每路每小时200M。例如16路硬盘录像机，同时录像的情况下每小时共占用硬盘3.2G。根据不同应用场所，可以采用动态录像等方式进行录像，这样保证录像资料均
12、为有效部分。硬盘录满后将自动对前面的录像资料循环覆盖。可用光盘刻录机将需要长期保存的录像内容刻在光盘上。 有些情况下为减少硬盘投入，可按每路每小时100M设置录像质量，但画面质量不能保证。建议只在要求不高的情况下使用。各种DVR录像画质与占用硬盘空间对比表 CIF画质 HalfD1画质 DCIF画质 D1画质 一般活动 25-200M/h 60-430 M/h 50-400 M/h 110-800 M/h 复杂/剧烈活动 50-250 M/h 150-680 M/h 150-680 M/h 190-900 M/h夜间/光线较暗 25-150 M/h 130-380 M/h 90-280 M/h
13、 190-500 M/h 计算式：每小时数据量 * 24小时 * 天数 = ？G 分辨率不同，D1格式图像质量最清晰，但图像占用硬盘资源最大，Half D1次之，CIF图像质量相对最差，但也能满足一般监控要求。PAL制D1:704576 Half D1:704288 CIF:352288 NTSC制D1:704480 Half D1:704240 CIF:3522401080P对应的分辨率是1920*1080720P对应的分辨率是1280*720480P对应的分辨率是720*480480线通常是指垂直分辨率，如640480，即表示水平640线,垂直480线，这时的总像素即为：640480 =
14、307200真正的D1在pal制式下是720576，而4cif是704576，不过现在基本上二者都混用了，而half D1是720288，CIF是公共中间格式，大小是352288，目前主流监控还是用CIF的多。CIF、DCIF、D1格式介绍 CIF简介 CIF是常用的标准化图像格式（Common Intermediate Format）。在H.323协议簇中，规定了视频采集设备的标准采集分辨率。CIF = 352288像素 ) QCIF全称Quarter common intermediate format。QCIF也是常用的标准化图像格式。在H.323中，规定QCIF = 176144像素。
15、 CIF格式具有如下特性： (1) 电视图像的空间分辨率为家用录像系统(Video Home System，VHS)的分辨率，即352288。 (2) 使用非隔行扫描(non-interlaced scan)。 (3) 使用NTSC帧速率，电视图像的最大帧速率为30 000/100129.97幅/秒。 (4) 使用1/2的PAL水平分辨率，即288线。 (5) 对亮度和两个色差信号(Y、Cb和Cr)分量分别进行编码，它们的取值范围同ITU-R BT.601。即黑色=16，白色=235，色差的最大值等于240，最小值等于16。 分辨率数字监控产品中一项重要的技术指标，它在很大程度上决定了产品的性
16、能（清晰度、存储量、带宽）和价格。能够在不增加成本和数据容量的情况下，提高录像的回放图像画质，这样的分辨率是我们所需要的。目前监控行业中主要使用 Qcif （176*144） CIF （352*288） HALF D1 （704*288） 4CIF （704*576） D1 (720*576)CIF录像分辨率是主流分辨率，绝大部分产品都采用CIF分辨率。目前市场接受CIF分辨率，主要理由有四点：1、目前数码监控要求视频码流不能太高；2、视频传输带宽也有限制；3、使用HALF D1、D1分辨率可以提高清晰度，满足 高质量的要求，但是以高码流为代价的。在现阶段，出现了众多D1的 产品，但市场份额非
17、常小；4、采用CIF分辨率，信噪比在32db以上， 一般用户是可以接受的，但不是理想的视频图像质量。目前业内人士 正在尝试用HALF D1来寻求CIF、D1之间的平衡。下面为5种CIF 图像格式的参数说明。参数次序为“图象格式亮度取样的象素个数(dx) 亮度取样的行数 (dy) 色度取样的象素个数(dx/2) 色度取样的行数(dy/2)”。 sub-QCIF 12896 64 48 QCIF 176144 88 72 CIF 352288 176 144 4CIF 704576 352 288（即我们经常说的D1） 16CIF 14081152 704 576 #7(U8BzOQ 目前监控行业
18、中主要使用Qcif（176144）、CIF（352288）、HALF D1（704288）、D1 ?87EIQ_ （704576）等几种分辨率，CIF录像分辨率是主流分辨率，绝大部分产品都采用CIF分辨率。目前市场接受CIF分辨率，主要理由有四点：1、目前数码监控要求视频码流不能太高；2、视频传输带宽也有限制；3、使用HALF D1、D1分辨率可以提高清晰度，满足高质量的要求，但是以高码流为代价的。在现阶段，出现了众多D1的产品，但市场份额非常小；4、采用CIF分辨率，信噪比在32db以上，一般用户是可以接受的，但不是理想的视频图像质量。目前业内人士正在尝试用HALF D1来寻求CIF、D1之
19、间的平衡。但随着单块硬盘的容量达到750GB甚至1000GB，而国内的大部分DVR已经可以做到连接8块1000GB的硬盘，故D1逐渐会变成时常的主流。 DCIF分辨率是什么？ 经过研究发现一种更为有效的监控视频编码分辨率（DCIF），其像素为528384。DCIF分辨率的是视频图像来历是将奇、偶两个HALF D1，经反隔行变换，组成一个D1（720*576），D1作边界处理，变成4CIF（704576），4CIF经水平3/4缩小、垂直2/3缩小，转换成528384.528384的像素数正好是CIF像素数的两倍，为了与常说的2CIF（704*288）区分，我们称之为DOUBLE CIF，简称DC
20、IF。显然，DCIF在水平和垂直两个方向上，比Half D1更加均衡。 为什么选用DCIF分辨率？ 数字化监控行业对数字监控产品提出两项要求：首先要求数据量低，保证系统能够长时间录像和稳定实时的网络传输；其次要求回放图像清晰度高，满足对细节的要求。而DCIF分辨率在目前的软硬件平台上，能很好的满足以上两项要求。Half D1分辨率已被部分产品采用，用来解决CIF清晰度不够高和D1存储量高、价格高昂的缺点。但由于他相对于CIF只是水平分辨率的提升，图像质量提高不是特别明显，但码流增加很大。 经过对大量视频信号进行测试，基于目前的视频压缩算法，DCIF分辨率比Half D1能更好解决CIF清晰度不
21、够高和D1存储量高、价格高昂的缺点，用来解决CIF和4CIF，特别是在512Kbps码率之间，能获得稳定的高质量图像，满足用户对较高图像质量的要求，为视频编码提供更好的选择。 CIF清晰度不够高和D1存储量高、价格高昂的缺点分辨率，静态回放分辨率理论上最高可达360TVline的图像质量，超过模拟监控中标准VHS磁带录像机280TVline的图像水平，达到公安部安防行业视频标准二级和三级项目的清晰度要求，满足绝大部分视频监控的要求。什么是D1做闭路电视监控系统这一行久了，大家都以为D1是硬盘录像机显示、录像、回放的分辨率，实际上不是的，D1是数字电视系统显示格式的标准，共分为以下5种规格： D
22、1：480i格式（525i）：720480（水平480线，隔行扫描），和NTSC模拟电视清晰度相同，行频为15.25kHz，相当于我们所说的4CIF（720576） S 4 Qunn D2：480P格式（525p）：720480（水平480线，逐行扫描），较D1隔行扫描要清晰不少，和逐行扫描DVD规格相同，行频为31.5kHz r b6*eY D3：1080i格式（1125i）：19201080（水平1080线，隔行扫描），高清放松采用最多的一种分辨率，分辨率为19201080i/60Hz，行频为33.75kHz D4：720p格式（750p）：1280720（水平720线，逐行扫描），虽然分
23、辨率较D3要低，但是因为逐行扫描，市面上更多人感觉相对于1080I（实际逐次540线）视觉效果更加清晰。不过个人感觉来说，在最大分辨率达到19201080的情况下，D3要比D4感觉更加清晰，尤其是文字表现力上，分辨率为1280720p/60Hz，行频为45kHz D5：1080p格式（1125p）：19201080（水平1080线，逐行扫描），目前民用高清视频的最高标准，分辨率为19201080P/60Hz,行频为67.5KHZ。 其中D1 和D2标准是我们一般模拟电视的最高标准，并不能称的上高清晰，D3的1080i标准是高清晰电视的基本标准，它可以兼容720p格式，而D5的1080P只是专业
24、上的标准，并不是民用级别的，上面所给出的60HZ只是理想状态下的场频，而它的行频为67.5KHZ，目前还没有如此高行频的电视问世，实际在专业领域里1080P的场频只有24HZ，25HZ和30HZ。 需要指出的一点是，D端子是日本独有的特殊接口，国内电视几乎没有带这种接口的，最多的是色差接口，而色差接口最多支持到D4，理论上肯定没有HDMI（纯数字信号，支持到1080P)的最高清晰度高，但在1920：1080以下分辨率的电视机上，一般也没有很大差别。 国内主流的硬盘录像机（DVR，Digital Video Recording）采用什么分辨率？怎样计算硬盘容量？ 目前国内主流的硬盘录像机采用两种
25、分辨率：CIF和D1。 硬盘录像机常见的路数有1路、2路、4路、8路、9路、12路和16路。最大可以连接8块2000GB的硬盘，总容量可高达1.6T（目前市面上最大的硬盘在1000GB左右），如果采用CIF分辨率，通常每1路的硬盘容量为180MB250MB/小时，通常情况下取值200MB/小时；如果是D1的分辨率每小时录像需要的硬盘容量为720MB1000MB/小时，通常情况下为了减少硬盘的容量可以按照500MB/小时计算，帧率智能设置比25fps少一些，码流也要少一些！相信大家可以计算出一台装满8块500GB的16路硬盘录像机可以录像多长时间了吧？ 计算举例：8路CIF格式24小时不间断录像
26、30天所需硬盘容量？ 8路200M24小时30天1024M = 1125G (注：1G = 1024M) 一、 什么叫做720P，480I，480P，576I，1080I?I: 隔行扫描, interlaceP：逐行扫描, progressive720P：720p 是D4标准数字电视显示模式，60hz频率，750条垂直扫描线，720条可见垂直扫描线，16:9，记为720p或750p。 实际图像分辨率 1280 * 720。480I：480i 是标准的NTSC电视显示模式，60hz频率，525条垂直扫描线，483条可见垂直扫描线，4:3 或 16:9，记为480i或525i。480P：指实际的图
27、像区域，也可以称525P，在电视领域里则是NTSC制的EDTV；相应的电脑显示格式是VGA。640*480p(60Hz)简称480p。576I：576i 是标准的PAL电视显示模式，50hz频率，625条垂直扫描线，576条可见垂直扫描线，4:3或16:9，记为576i或625i。1080I：1080i 是D3标准数字电视显示模式，60hz频率，1125条垂直扫描线，1080条可见垂直扫描线，16:9，记为1080i或1125i。实际图像分辨率 1920 * 1080I。1080p: 1080P 是D5标准数字电视显示模式。实际图像分辨率 1920 * 1080P。二、 什么叫做4:4:4 Y
28、crCb，4:4:2 YcrCb？YCrCb取样方式就有4:4:4, 4:2:2及4:1:1等不同方式。以NTSC(525条扫描线，每秒60个圆场field)下的4:2:2為例，每条扫描线共取样858個亮度信号(Y)及429個彩度信号(CrCb) ，也就是說其取样頻率分別为858x525x30=13.5Mhz(亮度信号)及6.75Mhz彩度信号。所以4:2:2即是当Y每取四个点時，Cr及Cb则取二個点。power for the interests of individuals or a group, is to examine the basic measure of a ruling pa
29、rty can hold. Kuomintang in mainland China more than 20 years, is the party for the private sector. Full of hoarding, and corruption does not punish, collaborators of treason, . Building societies, above people-based critical of the rulers do exist, but due to the limitations of class, what is often
30、 the people, and even completely opposite. Among these, the worst case, when the number of Qin dynasty. Qin United the six States, only a short 15 years of dynasties. That later sent a sigh: boo hoo! destroyed six of six non-Qin. Qin Qin Ye, not the world. It should be noted that our party advocated
31、 people-oriented , which absorbed the outstanding achievements of ancient and modern culture, with feudal society people-oriented ideas, capitalist society of humanism is fundamentally different. Comrade Mao Zedong once said that exploiting class man with love cattle, we are different, we are part o
32、f the people, our party is representative of the people. The principle of Governing for the people as the concept that the people in our party, and the traditional people-oriented thoughts vinegar, but? Bstyle=coloR:white; BackgRound-coloR:#00aa00 is belongs to which people, and which party; people
33、is social political subject, national should by people for main, and not for people for main; masses is real of hero, people has capacity masters; rulers and people is sex relationship, must believes, and relies on and to people, and consciously accept people of supervision; rulers always to for peo
34、ple for only, and ultimate target, and not as means or expediency. There is no doubt that notion of Governing for the people are genuine, complete humanism. Principle of Governing for the people as our partys view, is the times. Back in the early days of party, Li Dazhao on the discussion of populis
35、t outlined when the Communist ideal of Governing for the people. He in civilians doctrine a paper in the said: pure of civilians doctrine , is put political Shang, and economic Shang, and social Shang all privileges class, completely break, makes people all, are is for social national do useful of w
36、ork of people, not must with political organ to ruled personal, political organ just for all people, belongs to all people, and by all people implementation of affairs management of tool. Advocated by Comrade Mao Zedong serve and from the masses, to the masses the mass line, Comrade DENG Xiaopings t
37、hree favorables and people are not satisfied, people promise not to promise, in favour of the people do not agree, the people happy or not standard, lays the theoretical foundation for the principle of Governing for the people. With comrade Jiang Zemin as the core of the third generation of collective leadership of the party to govern for the people are described in comprehensive and profound. Three representatives important thoughts converge was assuming power for the people. Adhere to and assumes power for the people, do our best, most complete, most fully reflect the