Effio-E Solution <br> As the two main technologies of low-light cameras, sensor and digital signal processing have always been the focus of active research and development. In this regard, Sony has been at the forefront of the industry, in addition to the high-performance image sensor SuperHADCCDII (high-performance positive hole accumulation layer sensor, can achieve high sensitivity of 1000mV or higher) and EXviewHADCCDII (can achieve 1000mV or higher In addition to the sensitivity of 1μm2 and the improvement of infrared light efficiency in the near-infrared region, new DSP technology advances have been made. In 2010, SONY launched the "Effio-E" (Color High-Definition Digital Processing Technology) solution.
What is Effio? Effio means powerful features and a sophisticated image processor. It is a signal processor developed by Sony that enables high resolution, high signal-to-noise ratio and high-quality color reproduction of the camera.
The "Effio-E" solution uses SONY's most advanced CCD with the most advanced SS-4 digital processing technology. The new ultra-wide dynamic technology, with a wider range of applications, with motion detection, face detection and other features, provides excellent image quality for low-light cameras.
Sony's "Effio" digital signal processor provides high resolution image quality, high signal-to-noise ratio and high color reproduction. It supports NTSC 480K effective pixel CCD and PAL 570K effective pixel CCD. With EffioDSP and the new CCD, it can achieve more than 650 TVlines resolution. Compared with the standard camera, this method can provide clearer image, and its color signal processor can provide ideal color brightness and concentration. balance.
Effio combines 2D and 3D noise suppression signal processors to reduce noise, even when shooting moving objects, without compromising dynamic resolution. In addition, Effio combines peripheral circuit design, which not only reduces the size of the camera, but also reduces power consumption.
Rear autofocus <br> Most low-light cameras with fixed focal lengths work better during the day (visible light) because the focal length is more sensitive to shorter wavelengths of light.
When the infrared filter is switched off at night, when the near-infrared light enters, the camera loses focus due to the longer wavelength.
Panasonic and Pyle High have developed automatic back focus (ABF) technology to automatically adjust the position of the sensor after focal length conversion to ensure night vision of low illumination cameras. When switching from color mode to black and white mode, the camera with (ABF) device automatically performs precise focus adjustment at the CCD position to accurately achieve back focus. This solves the problem that the image of the conventional camera becomes blurred after the IR filter is removed.
In addition, products with automatic back focus adjustment can be automatically adjusted for back focus by tapping a single button. When switching from color mode to black and white mode, the CCD position is automatically adjusted to ensure accurate focus throughout the day.
Infrared detection lock <br> Conventional day and night conversion is to feel the external visible light intensity. When the visible light is lower than the predetermined value, the conversion circuit is started, the filter action is controlled, and the color to black and white conversion is realized. When used in an actual low-light environment, the camera may be temporarily affected by the external environment and misjudge the ambient illumination (such as the illumination of the headlights) from black and white to color mode, but the actual ambient illumination is still low. After the car passes, the camera will switch from color mode to black and white mode again, resulting in frequent day and night transitions, affecting the monitoring effect, and reducing the life of the filter switching motor.
At present, Digital Light AMPON (Ang Pen) has launched a low-light camera with its own infrared detection and locking technology, which will not interfere with some short-term glare even in low-light conditions at night ( For example, when the vehicle passes the light of the headlights and frequently switch between day and night, it is beneficial to maintain the stability of the monitoring, the continuity of the picture and the service life of the product. The camera can automatically detect infrared light, as long as the infrared light is turned on, it can be locked in the night mode to ensure stable operation of the camera. In addition, this camera has a color 540 line, black and white 600 line horizontal resolution, the minimum illumination is color mode 0.02Lux / black and white mode 0.005Lux, can effectively meet the user's night monitoring requirements, capture high-definition picture. It also configures automatic gain, automatic white balance, backlight compensation and other functions to make the image more realistic and brighter. It is very suitable for places like “Safe City†project, road traffic monitoring and other 24 hours monitoring.
At the same time, AMPON, based on the comprehensive advantages of various technologies, launched its own ultra-low illumination technology - CDS low noise preamplifier. The subsampling circuit (CDS) boosts the amplifier gain and creates an extra 6dB of ultra-low illumination.
3D+2D digital noise reduction <br> In addition, the DSP's processing of noise plays a key role in improving the quality of low-light camera images, and it is also a part of the difference in camera performance between various manufacturers. A typical low-light camera often causes a drop in sharpness due to excessive noise. Samsung's low-light camera uses its own 3D+2D digital noise reduction technology, which uses 3D filtering when processing still images, and 2D filtering when dynamic. After the processing is completed, the image is merged, and the effect of the picture is more clear and delicate. In the noise reduction processing, the effect of the low illumination camera can still be improved by the subdivision of the picture sampling, the improvement of the processing algorithm, and the automatic gain refinement.
Embedded color low illumination brightening board <br> Traditional camera is greatly affected by the shooting environment. In the case of weak ambient light, the camera picture becomes dim. Shenzhen Ruisi Ling Video Technology Co., Ltd. has developed a kind of Embedded low-lighting brightening board, which helps the camera to significantly improve the overall brightness and clarity of the picture, avoiding monitoring blind spots caused by insufficient light in the field. In addition, the board can automatically adjust in real time according to the brightness of the screen to ensure the optimal output image.
The board adopts the technology of “retina simulation + local feature recognition + image dynamic clearingâ€. The embedded design directly processes the video data collected by the lens, which significantly improves the shooting performance of the camera under low illumination, so that the camera has low illumination. effect. On the other hand, the board also reduces the cost of achieving low illumination.
Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter.
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