【安防知識網(wǎng)】百萬像素和高清視頻監(jiān)控設備的增長和應用，將成為至2014年前視頻監(jiān)控設備市場發(fā)展最為關鍵的趨勢之一。IMS Research通過最新發(fā)布的“全球模擬視頻監(jiān)控和視頻監(jiān)控市場，2010年版”報告中指出，到2014年將有超過50%的在售網(wǎng)絡攝像機達到高清與百萬像素的分辨率。

　　網(wǎng)絡攝像機優(yōu)勢之一是其可以達到百萬像素的分辨率，而這正是模擬攝像機目前無法實現(xiàn)的。然而，近來隨著HDcctv聯(lián)盟的發(fā)展，可以預見在指定百萬像素和高清監(jiān)控要求下，終端用戶擁有了更多的選擇。

　　雖然在新的企業(yè)級項目實施中運用網(wǎng)絡視頻監(jiān)控的比例正在提高，但是在現(xiàn)有的視頻監(jiān)控設備中，模擬仍然占據(jù)主導地主，代表了大多數(shù)的安裝基礎。未來幾年市場在這部分將變得最為有趣：客戶是會重新使用現(xiàn)有的模擬設施還是投資HDcctv，或是轉而使用網(wǎng)絡攝像機，亦或是采用混合系統(tǒng)呢?

　　擁護高清視頻監(jiān)控者一致認為視頻監(jiān)控系統(tǒng)將從模擬視頻轉換到網(wǎng)絡系統(tǒng)。然而，在拓撲結構需要上卻出現(xiàn)了分歧。對于希望獲得高清和百萬像素視頻的用戶來說，這是可以做到用一個“純”網(wǎng)絡視頻解決方案或是使用HDcctv模擬視頻監(jiān)控解決方案，帶來了一個以太網(wǎng)上使用網(wǎng)絡數(shù)據(jù)功能的DVR。

　　“HDcctv攝像機將在短期內(nèi)將不會影響IP攝像機的成長”，研究報告的撰寫者、視頻監(jiān)控研究分析師Gary Wong總結道，“許多大型和知名的視頻監(jiān)控設備廠商已紛紛投入大量的資金開發(fā)和銷售網(wǎng)絡攝像機。在不久的將來，這些供應商調(diào)整他們的技術方法和營銷信息來容納HDcctv產(chǎn)品進入他們的產(chǎn)品組合的可能性很小“。知名品牌對HDcctv的曝光力度的不足將對HDcctv設備在企業(yè)級項目中的銷售不利。盡管如此，HDcctv攝像機仍然潛在地制約著網(wǎng)絡攝像機市場增長。Wong繼續(xù)說道，“HDcctv可獲得低收入和中等收入的市場份額。服務這部分市場安全系統(tǒng)的多為一些較小的、地方和區(qū)域性的安全系統(tǒng)安裝商，他們對網(wǎng)絡攝像機認知度較少。而HDcctv則允許工程商可以在不必超出他們知識能力范圍的傳統(tǒng)技術領域里就能為客戶提供高清的便利。

　　盡管HDcctv存在這些潛在的影響， 但是IMS Research預測到2014年高清和百萬像素網(wǎng)絡攝像機全球出貨量將超過HDcctv，銷售比達6：1。

[nextpage]【原文】 The growth and adoption of megapixel and high definition (HD) video surveillance equipment is one of the key trends shaping the video surveillance market towards 2014. According to IMS Research’s latest report, “The World Market for CCTV and Video Surveillance Equipment – 2010 Edition”, by 2014 more than 50% of all network cameras shipped will be HD or megapixel resolution.

　　One of the main benefits of network security cameras has been the availability of megapixel (and more recently HD) resolutions, a feature that until recently analogue video surveillance products had been unable to offer. However, recent developments from the HDcctv Alliance, the organisation responsible for developing the high definition over coax standard (based on the industry HD-SDI broadcast standard), could see end-users given a greater choice when specifying megapixel and HD surveillance requirements.

　　Whilst a high proportion of new, enterprise-class projects are implementing network video security, existing video surveillance installations, which are predominantly analogue, still represent a majority of the installed base. It is this sector of the market which will be most interesting in the coming years; will customers reuse their existing analogue infrastructure and invest in HDcctv, transition to network security cameras, or adopt a hybrid system?

　　There appears to be little disagreement between protagonists of high definition video surveillance that video surveillance systems are transitioning from analogue video to networked systems; however, there is discord regarding the system topology needed to achieve this. For customers looking to capture high definition and megapixel video, this can be done using a “pure” network video solution or by using an HDcctv analogue video surveillance solution that brings the data onto the network using an Ethernet enabled DVR.

　　“HDcctv cameras will not impact the uptake of IP cameras in the short term”, states report author and video surveillance research analyst Gary Wong. “Many large and well-known vendors of video surveillance equipment have already invested heavily in developing and marketing network security cameras. It is unlikely that these vendors will adjust their technology roadmaps and marketing messages to accommodate HDcctv products into their product portfolios in the near future”. The lack of recognised brand exposure will prove detrimental to HDcctv equipment sales at the enterprise-class project level. However, HDcctv cameras could potentially limit the available market for network security cameras. Wong continues, “HDcctv may gain traction in the low and middle segments of the market. These market segments are serviced by small, local and regional security systems installers who have generally been slow to embrace network security cameras. HDcctv allows installers to offer the benefits of HD to their customers without having to operate outside of their technical comfort zone”.

　　Despite the potential impact of HDcctv, IMS Research forecasts that by 2014 worldwide shipments of HD and megapixel network security cameras will outnumber sales of HDcctv cameras by a factor of 6 to 1.