5, HD monitor the problems faced by
  HD network camera to make a qualitative leap in image clarity, but it also brings a series of high-definition monitoring system the real question:
  Tight network bandwidth: resolution of the larger ultra-high-definition, which means the time during data transmission stream will increase, increasing pressure on network bandwidth.
  Large storage space: data traffic doubled, increasing the recording capacity, the network storage pressure.
  Of central control, management software and hardware performance requirements doubled;
  Recorded video images for the management and post-mortem analysis of the workload will be doubled and redoubled;
High investment costs.
  Thus, in the pursuit of high-definition, we have to solve the above problems for the customer to consider.

  6, high-definition monitor on-demand applications
  The technical challenges facing high-definition monitors can be applied to resolve. Based on the current status quo, the user should not blindly pursue high-definition. If all the front-end control points are the use of high-definition network cameras, and all the real-time HD transmissions, then to back-end storage and transmission will cause great stress and result in cost and efficiency of the waste. So, should be based on the needs of users and tailor solutions to high-risk areas such as design and installation of high-definition network camera megapixels, under normal circumstances only the ordinary resolution (CIF, D1) to transmit real-time video images,
Alarm condition occurs in the high-pixel high-resolution JPEG images transmitted in order to facilitate subsequent amplification watch, control of the details. This can greatly ease the pressure on the network, storage pressure, reduce investment costs.
  Now appeared on the market a three-stream high-definition network cameras, supported JPEG/MPEG-4/H.264 three kinds of different video compression formats, you can set up according to the customer the actual situation of these three streams. For example: the lower streams of the H.264 video compression format, D1 images transmitted to the remote to the customer's monitor in real time, while megapixels of the H.264 video compression format, real-time image storage server, the incoming video, another can also be transmitted when the alarm megapixels of JPEG images, easy to zoom after the confirmation, look for suspicious objects.
  In short, we should follow the following principles: in peacetime, a smaller transmission bandwidth real-time image, and image transmission at a critical time when high-definition images with good effects.

  7 Concluding Remarks
  The era of HD surveillance applications, is rushing toward us! Open, high-definition standard is to promote the development of a catalyst. Full HD monitor usage, there is still a long way to go. Joint Special Micro will be launched at the end of its 2 million-pixel network camera, into the HD era.

  Analog products and digital high-definition products in comparison, there are many design flaws, making it difficult to present technical infrastructure in the resolution, frame rate, etc. are greatly improved. Take clarity, the existing analog CCTV surveillance system, cameras capture vertical resolution, PAL standard 625 scan lines under the existing ultra-high-definition products reached 540,600 lines of basic analog system has reached the limit. The network camera has no upper limit (megapixels network cameras can easily see the 1000 line above). So, currently on the market for high-definition cameras used to monitor both the network camera.
  HD network camera is able to capture a row by more than 12FPS is greater than maximum resolution of 720P (1280 * 720), or even meet or exceed 1080P (Resolution 1920 * 1080) Network Camera. To meet the above definition 720P high-definition standard, could be interpreted as megapixels level, so we also called for high-definition network camera megapixels network camera, network camera megapixels than the traditional analog cameras, network camera with the following general advantages:
  Using megapixels sensor, can get more video information is generally up to 1280 × 1024,1392 × 1024,1628 × 1236 or even 2048 × 1536 resolution;
  Using megapixels camera, in the same environment to test the normal lens and the camera megapixels, megapixels camera could be better with the megapixels sensor, get to a more clear image.
  Image shows higher quality, better able to capture the details;
  Progressive scan CCD / COMS more fluid dynamic picture performance;
  To support wide-screen HDTV output mode (16:9);
  Broader coverage, the same monitoring area can replace the original number of fixed-point cameras and an omnidirectional camera.
  Performance depends on the clarity of the camera sensor, CCD and CMOS sensor compared to the two, CCD sensor sensitivity, resolution, noise control, high-quality image output, the dynamic imaging performance should be better than the COMS, so standard-definition analog video camera and Network cameras are most popular as a photosensitive element CCD. But the lower rate of CCD response does not apply to high-definition surveillance cameras used in high-resolution progressive scan mode, so commonly used high-definition network camera CMOS Sensor.
  Image compression format will determine the transmission network, video storage, back-end processing requirements, but also to a large extent affect the image quality. Currently in high-definition network camera is widely used in image compression technology JPEG/MPEG-4/H.264 three ways, each with different compression characteristics. If access to the highest single frame JPEG image quality, and the processing platform of the camera's own requirements are also low, but continuous maximum bandwidth image compression; H.264 access to the highest compression ratio, but the camera itself, processing platform requirements are also maximum. In order to meet different application requirements and network environment,
  Comparison of high-end high-definition network camera all at the same time with these three kinds of coding ability and dual-stream, multi-stream capabilities.