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href="http://m.cdcfah.com/">首頁(yè)?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_cmgd/">傳媒、廣電</a>?<a href="http://m.cdcfah.com/cp/second-cmgd_bjzzsb/">編輯制作設(shè)備</a>?<a href="http://m.cdcfah.com/cp/third-bjzzsb_tjqht/">特技切換臺(tái)</a>?湛江直播攝像機(jī) 歡迎來(lái)電深圳市中科致遠(yuǎn)供應(yīng)</p><div id="p3z7one" class="leftbox clearfix"><h1>湛江直播攝像機(jī) 歡迎來(lái)電深圳市中科致遠(yuǎn)供應(yīng)</h1><div id="eyq7r2a" class="proBig"><div id="hwtsx7u" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973328750000/7181081.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="l3bykws" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973328750000/7181081.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8rfwnub" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湛江直播攝像機(jī),導(dǎo)播切換臺(tái)</p><p><span>***更新：</span>2020-09-23 10:32:58</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ztqc8nh" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市中科致遠(yuǎn)數(shù)字技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>彭先生</p><p><span>郵箱: </span>SZKCE@126.COM</p><p><span>電話: </span>13267148828</p><p><span>傳真: </span>0755_66632010</p><p><span>網(wǎng)址: </span>https://www.yuanvideo.com</p><p><span>手機(jī): </span>0755-66632010</p><p><span>地址: </span>深圳市寶安區(qū)西鄉(xiāng)街道寶民二路一號(hào)浩泰大廈802室 </p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="2jv7aea" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3li3z2b" class="box"><p><p style="text-indent:25px">導(dǎo)播切換臺(tái)-劃像：劃像又稱為掃換、電子拉幕或分畫(huà)面特技，它是使一個(gè)畫(huà)面先以一定的形狀、大小出現(xiàn)于另一個(gè)畫(huà)面的某一部分，接著按此形狀使其面積不斷擴(kuò)大，完全取代另一畫(huà)面。也可以這樣說(shuō)，劃像就是整個(gè)屏幕被A、B兩個(gè)畫(huà)面所分割，分割的形狀由特技波形發(fā)生器提供的波形來(lái)決定，而且兩個(gè)分畫(huà)面的相對(duì)面積可通過(guò)拉桿電位器控制。實(shí)現(xiàn)劃像特技的基本原理為實(shí)現(xiàn)劃像特技，可以將視頻信號(hào)A和B分別通過(guò)兩個(gè)門(mén)控放大器后再相加。這兩個(gè)門(mén)控放大器所加的門(mén)控電壓又稱拉幕電壓，湛江直播攝像機(jī)，湛江直播攝像機(jī)，它們的波形相同，湛江直播攝像機(jī)，極性相反，頻率是行頻或場(chǎng)頻的整數(shù)倍。導(dǎo)播切換臺(tái)的慢切換是將兩路信號(hào)在幅度上進(jìn)行分配組合。湛江直播攝像機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湛江直播攝像機(jī),導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973328750000/7181081.png"></div><p style="text-indent:25px">網(wǎng)絡(luò)導(dǎo)播切換臺(tái)將視頻導(dǎo)播后用RTMP協(xié)議將視頻流推送到流媒體服務(wù)器。直播導(dǎo)播切換臺(tái)一般都支持RTP/RTSP/RTMP/ONVIF協(xié)議，這樣可以方便直接對(duì)接相應(yīng)的視頻服務(wù)端軟件，目前主要的視頻直播協(xié)議是RTMP協(xié)議，應(yīng)用RTMP做網(wǎng)絡(luò)直播具有穩(wěn)定性強(qiáng)的特點(diǎn)，是非常適合網(wǎng)絡(luò)直播的。直播導(dǎo)播切換臺(tái)接口有SDI、HDMI、VGA等幾種，其中HDMI接口傳輸?shù)囊曨l和音頻信號(hào)是無(wú)壓縮的，而不需要進(jìn)行來(lái)回的數(shù)模轉(zhuǎn)換，能保證信號(hào)質(zhì)量，另外它還不需要單獨(dú)的數(shù)字音頻接線，能夠同時(shí)傳輸視頻和音頻信號(hào)，隨著發(fā)展，將會(huì)取代其它信號(hào)接口，成為主流。湛江直播攝像機(jī)導(dǎo)播切換臺(tái)現(xiàn)場(chǎng)制作時(shí)，多臺(tái)攝象機(jī)的視頻信號(hào)全都送現(xiàn)場(chǎng)，在現(xiàn)場(chǎng)即時(shí)進(jìn)行剪輯。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湛江直播攝像機(jī),導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973681591797/5289310.png"></div><p style="text-indent:25px">導(dǎo)播切換臺(tái)-其他鍵控特技：陰影鍵和深度鍵。陰影鍵就是--種能給前景圖像任意添加陰影效果的鍵控技術(shù)。陰影鍵一般用于內(nèi)鍵或色鍵中，一種比較簡(jiǎn)單的方法就是在前景圖像及鍵源進(jìn)行處理后，產(chǎn)生出鍵信號(hào)及經(jīng)過(guò)鍵控處理的前景信號(hào)，接著用彩底或其它信號(hào)填充未被前景圖像占據(jù)的屏幕區(qū)域。然后調(diào)整由前景圖像生成的鍵信號(hào)，一般是對(duì)鍵信號(hào)的位置做適當(dāng)?shù)恼{(diào)整后再與原鍵信號(hào)相加。這樣，摳出的前景圖像上除了圖像本身還有背景彩底，調(diào)節(jié)背景彩底的亮度、色度，就可得到各種不同的陰影效果。</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)切換原理：快切?？烨惺侵笍哪骋宦冯娨曅盘?hào)源瞬間切換到另一路電視信號(hào)源的過(guò)程，在電視屏幕上表現(xiàn)為一個(gè)畫(huà)面迅速轉(zhuǎn)換到另一個(gè)畫(huà)面。它是電視節(jié)目制作中使用比較多的切換方式。它是通過(guò)視頻開(kāi)關(guān)實(shí)現(xiàn)的。為保證快切的播出質(zhì)量，避免畫(huà)面跳動(dòng)、撕裂或出現(xiàn)切換雜波干擾，必須使切換在場(chǎng)消隱期間進(jìn)行，也即是使視頻交叉點(diǎn)在場(chǎng)消隱期間發(fā)生狀態(tài)轉(zhuǎn)換。因此，控制視頻開(kāi)關(guān)的控制電壓包含兩種信號(hào):一種是操作面板.上送來(lái)的按鍵信號(hào);另一種是場(chǎng)控脈沖，只有這兩個(gè)信號(hào)同時(shí)作用在視頻開(kāi)關(guān)上，視頻開(kāi)關(guān)才會(huì)出現(xiàn)狀態(tài)轉(zhuǎn)換。導(dǎo)播切換臺(tái)的面板有若干條總線，每條總線上有若干按鈕，每個(gè)按鈕對(duì)應(yīng)一個(gè)輸入。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湛江直播攝像機(jī),導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637336069198339844/1709747.png"></div><p style="text-indent:25px">導(dǎo)播切換臺(tái)是對(duì)多路電視信號(hào)剪輯組合的裝置?，F(xiàn)場(chǎng)制作時(shí)，多臺(tái)攝象機(jī)的視頻信號(hào)全都送到這里，在這里即時(shí)進(jìn)行剪輯。導(dǎo)播切換臺(tái)實(shí)際是一個(gè)電子開(kāi)關(guān)組合，它可以通過(guò)按鍵控制各視頻信號(hào)電路的通斷，通者輸出，斷者截止。導(dǎo)播切換臺(tái)也可以由特技信號(hào)發(fā)生器代替。導(dǎo)播臺(tái)至少應(yīng)當(dāng)有5—6臺(tái)監(jiān)視器。1—4號(hào)監(jiān)視器叫做訊道監(jiān)視器，專門(mén)用來(lái)顯示各信號(hào)源圖象，供導(dǎo)播監(jiān)視用。導(dǎo)播臺(tái)的節(jié)目輸出信號(hào)一方面輸出，另一方面顯示在輸出監(jiān)視器上供導(dǎo)播監(jiān)視。導(dǎo)播切換臺(tái)的主要功能是給及時(shí)編輯提供方便。廣東影像采集器</p><p style="text-indent:25px">如想讓導(dǎo)播切換臺(tái)1號(hào)機(jī)播出，就按下1號(hào)機(jī)的按鈕。湛江直播攝像機(jī)</p><p style="text-indent:25px">對(duì)于導(dǎo)播切換臺(tái)，我們了解了現(xiàn)在的發(fā)展趨勢(shì)，每一款產(chǎn)品都有極其獨(dú)特的地方吸引著大眾的眼球。虛擬的到來(lái)，讓我們更清楚的知道互聯(lián)網(wǎng)行業(yè)的發(fā)展，與時(shí)俱進(jìn)。當(dāng)然，我們的導(dǎo)播臺(tái)也是一點(diǎn)都不遜色。導(dǎo)播切換臺(tái)的摳像背景—支持兩種背景模式，藍(lán)色背景或者綠色背景，這兩種背景可以自由選擇，我們推薦還是藍(lán)色背景適宜。因?yàn)樗{(lán)色背景可以完全襯托人的膚色，亮色顯得眼前一亮，豁然開(kāi)朗。導(dǎo)播切換臺(tái)單通道虛擬摳像系統(tǒng)—采用專業(yè)的技術(shù)色鍵進(jìn)行摳像，技術(shù)的展現(xiàn)可以將人的頭發(fā)絲色鍵摳像。湛江直播攝像機(jī)</p><p style="text-indent:25px">深圳市中科致遠(yuǎn)數(shù)字技術(shù)有限公司位于深圳市寶安區(qū)西鄉(xiāng)街道寶民二路一號(hào)浩泰大廈802室。公司業(yè)務(wù)涵蓋采集卡，視頻編碼器，直播設(shè)備，導(dǎo)播切換臺(tái)等，價(jià)格合理，品質(zhì)有保證。公司從事數(shù)碼、電腦多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。中科致遠(yuǎn)立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/1384826.html</p></div></div></div></div></div><div id="3x3s4xz" class="page-right twoColRt"><div id="tspm8nf" class="box01 margin10 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