The IP Camera subdivision: SD and HD

The IP Camera subdivision: SD and HD
Accompanied by the depth of the safe city construction, for high-definition, the increasing demand for intelligent. Multimedia technology, combined with the gradual maturity of codec technology, network technology and IT technology, high-definition monitor began to combat application stage, HD IP Camera has gradually become the front-end video capture products leader in the security industry. HD era, the quality of the network surveillance cameras have a new definition of SD and HD monitors have different needs.
First, high-definition network surveillance cameras quality new definition: 16:9
HD dubbed "title" in this era of rampant "HD", and you could see that in the end what is HD? What megapixels network camera? Currently, the definition of high-definition only appears in the radio and television industry in accordance with relevant standards, general ratio of 16:9, at least be able to resolve the digital signal of 1080i (resolution 1920 × 1080), or the number of scan lines vertical and horizontal direction must be up to 720P digital signal, only to meet or exceed the above criteria The products can be classified as high-definition products.
HD megapixels network camera is greater than 12FPS continuous acquisition the maximum resolution greater than 720P (1280 * 720), and even more than FullHD (1080p, resolution 1920 * 1080) to a higher 2048 × 1536 screen Webcams. Meet the definition of high definition above mentioned the HD index number of scan lines vertical and horizontal direction have reached 720P digital signal, can be understood as the HD products megapixels level. Such as the common market 1.3Megapixel, 2.0MegapixelVideoNetworkCamera are 130 million or 200 million pixels of the so-called HD IP Camera.
The camera's resolution depends on Sensor performance, CCD and CMOS two photosensitive chip CCD sensor in terms of sensitivity, resolution, noise control, high-quality image output, dynamic image performance is better than the COMS, so most of the professional camera select the CCD as the light-sensitive chip, and megapixels HD network camera use Sony's most advanced the ICX series of photosensitive chip with low sensitivity illumination, to obtain a clearer image in a dark environment, ordinary camera can not be achieved.
Second, the network HD Subdivision: SD and HD
In recent years, the construction of the Green City HD possession ratio significantly improved, especially in the Pearl River Delta and Yangtze River Delta and other economically developed area safe city construction projects, the demand for high-definition products on the network more strongly. In some large-scale projects on the customer requirements every three to four monitoring points must be installed on a HD IP Camera, a high-traffic special places must also be installed HD IP Camera, we can see the entire industry demand has been relatively clear high-definition products .
Mainly two types of standard definition network cameras and HD IP Cameras, network cameras:
The SD Network Camera is the most common application of surveillance equipment, most of the standard definition IP Camera is on the basis of traditional analog cameras IP module, mainly to meet the quality requirements are not particularly high, but remote centralized monitoring can also facilitate the construction and installation and commissioning. Due to the price advantage, standard definition network camera market demand accounted for a considerable part of the share, like computer local area network for regional monitoring sites, as well as via the Internet for cross-regional remote monitoring user to the standard definition network camera. But the shortcomings of the standard definition network camera is very prominent, the picture is fuzzy, low resolution, the incident scene details of the office is difficult to discern when sudden events need to be transferred to see the video playback, can not provide useful information.
At the same time, as the market demand for video surveillance quality to enhance the rapid development of HD IP Camera. Standard definition network cameras and traditional analog cameras are basically three or four hundred thousand pixels or lower, the latest program's analog products are also more than half a million pixels, the low pixel camera products can not fully meet the needs of most customers .
, The advantage of HD IP Camera surveillance program
HD network camera, image acquisition using the large size of the image sensor, the raw data collected through the ISP forming a video stream of the digital signal processing, digital video compression and network access module will be the digitized video signal is converted to match the network transport protocol (such as TCP / IP protocol) data stream, and sent to the internet transmission.
1, flexible networking, and easy to implement
With the rapid development of network technologies and services, broadband networks are rapidly toward every corner of the town. Therefore, the high-definition network monitoring to quickly adapt to market demand, the maximum advantage of interoperability, remote monitoring, and flexible networking, and without dedicated to wiring will be able to easily and quickly be applied.
2, lower cost, the effect is significant
Compared with traditional analog surveillance equipment, HD IP Camera installation more convenient, at the same time the whole project will be a significant reduction in the cost of installation and construction. In addition, the network transmission is convenient surveillance video images can switch freely between sub-centers in the command center of the video monitoring or video surveillance, making the overall monitoring and management and monitoring efforts have been fully improved.
wireless camera IR IP Camera HD Camcorder ipcam Wired IP Camera Consumption IP Camera POE IP Camera Plug Play IP Camera HD IP Camera Wireless IP Camera IP Camera Network camera manufacturer
From: http://www.vstarcam.com/channel/The-IP-camera-subdivision-SD-and-HD-44.html