What does wide dynamic range camera mean? What is its function?

The principle and application of wide dynamic range (WDR) technology

2022-07-06 14:32 wasintek
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Users often ask what wide dynamic range is.What does wide dynamic camera mean?,Wide dynamic range cameraWhat is the function?

Wide dynamic range is a technology used to allow the camera to see the characteristics of the image under very strong contrast.

When high-brightness areas under strong light sources (sunlight, lamps or reflections, etc.) and relatively low-brightness areas such as shadows and backlights coexist in the image, the image output by the camera will show that the bright areas become white due to overexposure, while the dark areas become black due to underexposure, which seriously affects the image quality. The camera has limitations in its performance of the brightest area and the darkest area in the same scene, and this limitation is commonly referred to as the "dynamic range".


宽动态摄像头


Therefore, wide dynamic range means that both the brightest and darkest parts of a scene can be seen clearly at the same time. Wide dynamic range is the ratio of the brightest brightness signal value that the image can distinguish to the darkest brightness signal value that it can distinguish. Wide dynamic range cameras can be widely used in highway toll systems, electronic police systems, urban commercial systems, bank automatic doors,ATMMachine, personal identification and other fields.

Various types ofCamera Solution,useG1The core camera motherboard is powered by Sunplus TechnologyiCatchAs a world-leading low-power, high-performance imageSOCchip,iCatchThe chip has a variety of powerfulISPAlgorithmic technology, including wide dynamic range.


iCatch芯片


iCatchWide dynamic range (WDR) technology applies local tone mapping to restore lost details, enabling the camera to capture excellent images and videos under extreme lighting conditions. Wide dynamic technology is an important technology to improve image quality in backlit scenes.

Wide dynamic technology is based on intelligent recognition of target scenes and adaptive multiple exposure of valuable areas. It fuses long-frame, medium-frame, and short-frame image data of different exposure times through intelligent algorithms to achieve a perfect fusion of dark and bright areas of the image: bright areas are not overexposed and dark details are not lost. Backlit scenes are clear and dark areas are full of color and rich in details.

Huaxing VideoiCatchChip development variousCamera Solution, mainly used in aerial camera modules, sports cameras, anti-shake PTZ cameras, wearable cameras, industrial cameras,USBCameras and other video products.


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