HD surveillance should improve image quality
The most mentioned in recent years is "digital, high-definition," and high-definition has become one of the technical development indicators of video surveillance vendors. For video surveillance, image clarity is undoubtedly the key to high-definition surveillance. The clearer the image, the more obvious the details, the better the viewing experience, and the higher the accuracy of the smart application. However, one-sided pursuit of high pixels does not make sense because image quality does not depend only on pixels, but also on image processing techniques (such as image correction, image processing, grayscale processing, gamma adjustment, 2A algorithm, etc.). At present, many manufacturers have begun to devote more attention to image quality and improve product differentiation and performance under the same pixel conditions, such as low illumination, 3D noise reduction processing, wide dynamics and so on. For example, Tyco Integrated Security's video surveillance solution not only uses higher resolution cameras to cover the same area to achieve higher pixel density and greater visibility, but also uses a variety of advanced image enhancement techniques to enhance images. quality:
Wide dynamic: Make the camera in the scene where the light source contrasts more clearly, capture more details of the picture and get a clearer image.
Strong light suppression: effectively suppresses the halo caused by direct illumination of strong light, the video image is blurred, can automatically distinguish strong light spots, and compensates areas near strong light spots to obtain clearer images.
3D Noise Reduction: Provides sharper, more accurate images and saves disk space even in low light conditions.
Binning mode: Images obtained under low light conditions are better.
Day/night mode: A mechanical infrared filter is provided to provide a clear color picture during the day and automatically converts to a black and white image in a low-light environment.
Improve low light performance: In addition to the day and night conversion function, it also provides other technologies to improve low light performance, such as pixel binning, dual sensor monitoring and so on.
Customized exposure programming: This can be programmed and customized exposure mode, easy to set by a good environment configuration, such as indoor and outdoor, mobile, noise reduction, etc., through the shutter, gain value changes, with your needs Set the relevant values ​​and usage period so that the camera can obtain the optimized image according to the user's settings according to the ambient light changes.
Network Monitoring To save bandwidth and storage based <br> <br> HD monitor must be networked, because only for image processing and video compression for transmission over an IP network, in order to control the cost of high-definition video transmission. The All-in-One feature of the network camera also greatly saves the cost of auxiliary materials, making the integrated wiring more cheap and efficient. But the network monitoring also faces the most direct question, namely the image transmission is not smooth or the storage space is insufficient, how can save the bandwidth and the storage? The cost-efficient technology that these safes that Tyco integrated security provides, can bring greater for the customer Return on investment:
H.265 video compression: A new generation of video compression format that can save transmission bandwidth and storage space.
Intelligent image cropping: The sensor can avoid some unimportant images, and large images can be cropped horizontally and vertically. Allows only the required data to be transmitted and stored, discarded data can reduce the use of large amounts of storage space and bandwidth.
TSE (time partitioning engine): Unlike the database index design used by general manufacturers, the time partitioning engine can directly obtain video data from a pre-configured hard disk drive, ensuring simultaneous real-time video browsing, recording and playback, when someone crosses the perimeter When moving objects or moving objects, users can browse every instant scene with just a few clicks. It is convenient and saves bandwidth and storage.
Video temporary storage area: Provides a temporary backup space. By simply setting the backup time interval, the user can easily export the video/picture data to the temporary storage area. After the export is complete, the user can check the contents of the video/snapshot one by one. After the validity is confirmed, the backup is performed again to save the overall backup time.
Sub-path: Use the multi-streaming function of the IP camera to set a low frame rate/low video quality full-screen image, and use high frame rate/high RF quality to mark important areas to reduce total memory.
Multi-stream design: Users can use the window split function to distinguish important surveillance from 1 to 2 sub-videos according to the original video. The main video and sub-video are different streams, and the frame rate and quality can be independently adjusted. Videos can be made separately to maximize the use of NVR storage or network bandwidth.
Video surveillance will be more intelligent
Extensive video surveillance applications have brought about explosive growth in video data. It is far from enough to rely on human eyes to identify suspicious signs. It is more and more difficult to manually check manually afterwards. Passive surveillance has become an active method, and monitoring of intelligent applications. Bear the brunt. Therefore, under the premise of satisfying high-definition monitoring, monitoring must be combined with intelligent analysis technology, chip technology, image sensor technology, video technology, and communication technology to improve monitoring performance, optimize system architecture, and improve early warning capabilities. Tyco Integrated Security's intelligent video surveillance solution integrates security, monitoring and event management to free the monitoring staff from the complex and tedious "eye-screen" task, providing not only a simple and customizable operating experience, but also The security of the entire organization is reflected in:
ROI (Region of Interest) + ePTZ: Select ROIs for quick control of PTZ cameras, allowing users to navigate through the different areas of the megapixel camera without sacrificing resolution.
Turbo demo mode: Reduce the real resolution of the camera to match the browsing window size, so that real-time broadcast live video of multiple megapixel cameras; when the camera screen is expanded to full screen, the best image effect of the actual resolution can be demonstrated.
Trans coding: Provides smooth Internet video browsing, easy remote management, real-time browsing, playback and PTZ control via iPad/iPhone or IE browser.
Customized User Notification: Supports any maps downloaded and stored in HTML format. For example, Google Maps can be re-edited to configure the camera; when an alarm occurs, the map will pop up, and the user can directly select the relevant camera on the map. , View real-time pictures; also can browse and play back the same camera in real time.
Real-time video analytics: Enables intelligent video analysis on the basis of standard video, identifying people, vehicles, and other suspicious activities and activities.
Smart Search: Search for videos within a few days in a matter of seconds.
Comprehensive system health monitoring: Provides users with device status in real time and in a visible manner.
The future of video surveillance will further develop in the direction of high-definition, networking, and intelligence. At present, good market development momentum and broad market prospects have begun to emerge. It is believed that with the promotion of the technology wave, video surveillance will help security personnel to handle the crisis to a greater extent and become a powerful auxiliary tool for responding to attacks and dealing with emergencies, bringing greater investment returns to users.
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