Starlight level cameras are a type of low light camera. Low light cameras are cameras that can still display clear images under lower light conditions. Starlight level cameras are a category of low light cameras, typically classified as follows:
0.1Lux: Dark Light Level
0.01 Lux: Moonlight level
0.001 Lux and below: Starlight level
Starlight level camera refers to a camera that can display clear color images without any auxiliary light source in a starlight illumination environment, which is different from ordinary cameras that can only display black and white images with lost color information at night. But starlight level cameras - full-color cameras, starlight level cameras can display black and white images at night or full-color images according to the needs of the usage scenario. Compared to regular or low light cameras, the image quality is clearer and the picture is cleaner when displaying black and white images. When displaying full-color images, it does not mean that clear and transparent color images can be displayed without any supplementary lighting or light sources.
The structure of the Starlight level camera is completely identical to that of a regular camera, and the difference in its performance mainly comes from the improvement of underlying hardware performance and the optimization of image calibration algorithms.
1. The image sensor is the most significant factor affecting the low light effect of IPC. At present, the mainstream IPC adopts CMOS sensors. Initially, due to the differences in the structure and working mechanism of the two sensors, the imaging effect of CMOS in low light is not as good as CCD. The internal structure of CMOS has been adjusted, and the sensitivity has made a qualitative leap. Sensor sensitivity is the biggest guarantee for cameras to obtain clear color images in low light environments.
The image sensor used in starlight level cameras has a larger target area and higher sensitivity compared to ordinary cameras, but the cost will also increase compared to ordinary cameras.
2. The low light effect of the camera is also affected by the lens. The maximum aperture value of the lens is one of the important factors. The larger the aperture, the greater the amount of light entering, resulting in better color effects. Conversely, the smaller the aperture value, the shallower the depth of field. Therefore, the aperture value of the lens needs to be adjusted according to the actual scene, and cannot be blindly increased for the sake of light entering. Another parameter similar to this is the slow shutter speed of the camera. The slower the shutter speed, the greater the amount of light entering, and the higher the brightness of the image. However, the more severe the relative motion of moving objects, the corresponding value needs to be set according to the specific application scenario.
3. The low light effect is also related to the backend image processing effect of/SP. Noise reduction processing is an important step in imaging under low light conditions. Noise can make the image appear blurry, but improper noise reduction processing can cause serious fog, ghosting, loss of details, and other phenomena. The/SP of the Starlight level camera has been compared, carefully debugged, and optimized for image algorithms to ensure satisfactory results in low light environments, especially for full-color images.