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Ultra-high Resolution Imaging Hemispherical Camera CCD Device As an analog camera for the photosensitive element, the horizontal resolution not only depends on the performance of the CCD chip, but also is closely related to the design level and processing capability of the DSP digital signal processing circuit. With the advancement of security technology, high-definition surveillance is the future direction of security development. The camera has grown from the earliest line of 330 to 420 lines and 480 lines, and now 540 lines have become the mainstream of cameras. 
Ultra-low illumination technology With the increase of monitoring requirements, the requirement for 24-hour monitoring has gradually increased. At present, there are more and more “ultra-low illumination†cameras on the market of cameras, and they are implemented in various ways, such as slow shutter field accumulation technology and day/night color/black/white conversion technology.
The latest digital signal processing technology of fogging engine technology can automatically detect the grayscale fog image data in the image and calculate the brightness data of the whole area image. Through the high-definition image processing algorithm, combined with the grayscale curve transformation of the image processing chip, The points are calculated with the best correction curve and contrast, and the dynamic range curve of the image is adjusted in real time and the color reproduction degree is enhanced, so as to reduce the original image interference generated by the fog and restore the real image.
Automatic Dark Area Compensation (ABS)
Advanced digital signal processing technology can automatically detect the dark part of the image and count the brightness data of the whole area. Through the high-precision image processing algorithm, the best correction curve and contrast color can be calculated for each point, and the dynamic range of the image can be adjusted in real time. And dark areas to present the best clear image.
The traffic light identification technology is a subtle motion detection technology that performs fine detection of high-luminance areas of the image, adjusts the contrast and color density of the selected image in real-time through automatic dynamic selection calculation, and enables intelligent global image detection at the same time. The average brightness of the data, to determine the contrast and start time, in order to improve the night traffic lights discernment, to solve the problem of night traffic lights inversion.
Lightning Protection Lightning strikes usually take three forms: one is the rapid discharge between a charged cloud layer and a point on the earth, called "direct strike thunder," and the second is a "secondary thunder" or "secondary thunder" due to electrostatic induction in charged clouds. "Induction mine"; third is "spherical mine." Lightning strikes often result in damage to the main components of the equipment, the cost of repairs is high, and users have great losses.
Therefore, lightning protection has a great effect on protecting the normal operation of the camera and improving product life. By setting up a lightning protection circuit on the circuit board, it can be ensured that when the lightning strike occurs, the main components of the camera will not be damaged (such as circuit boards and motors). The current generated by a lightning strike is derived from the protection circuit and flows into the earth without entering the camera working circuit, thereby protecting the safety of the circuit and providing greater protection for the user.
Infrared detection and locking technology The conventional day and night conversion is to experience the external visible light intensity. When the visible light is lower than a predetermined value, the conversion circuit is started, and the filter action is controlled to realize the conversion from color to black and white. When using the camera in an actual low-light environment, the camera may be affected by the external environment and misjudge the ambient illumination (such as the headlights of the car). The black-and-white mode changes to the color mode, but the actual ambient illumination is still relatively low. Low, after the car passes by, the camera will switch back to black and white mode from the color mode again, and the phenomenon of frequent day and night transitions will affect the monitoring effect and reduce the life of the filter switching motor.
(1) HTCview digital optical transceiver, optical transceiver node, multi-service optical transceiver, optical platform (2) Aifeng optical transceiver (aiphone intercom transceiver), Aifeng intercom conversion module, Aifeng intercom equipment (3) HD optical transceiver: VGA Optical transceivers, DVI optical transceivers, HDMI optical transceivers, HD-SDI optical transceivers,
HD-SDI to HDMI Converter, HDMI to SDI Converter,
HDMI to VGA Converter, VGA to HDMI Converter (4) HD Matrix, HD Splitter, HD Extender, HD SDI SPD (5) HD-SDI Camera, HD-SDI Dome Camera, HD-SDI All-in-One, Infrared HD-SDI Dome Camera (6) HD-SDI DVR, SDIDVR
(7) Engineering treasures, optical power meters, etc.
Hemisphere camera parameter analysis and sharing
Color reproduction Color reproduction refers to the degree of consistency between the color of the color photography image and the original scene color after the scene is shot. The factors affecting color reproduction include the quality of the photographic lens, the color temperature of the light, the performance of the CCD, and the design of the digital signal processing circuit.