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    What is a Dual conversion gain (DCG)? Which Sensors support it?

    What is a Dual conversion gain (DCG)? Which Sensors support it?

    Dual conversion gain (DCG) is a technology used in CMOS image sensors to improve image quality in low-light conditions. It converts the light that hits the sensor into two signals, one with a high gain and one with a low gain. The high-gain signal is used to capture more light in low-light conditions, while the low-gain signal is used to capture more detail in high-light conditions. The two signals are combined to create a single image with improved quality.

    DCG is a relatively new technology but has quickly become a standard feature in many high-end camera sensors. It is one of the most effective ways to improve image quality in low-light conditions, and it is a key factor in the ability of modern cameras to take stunning photos in even the darkest of environments.

    Here are some of the benefits of dual conversion gain:

    • Improved image quality in low-light conditions
    • Reduced noise
    • Increased dynamic range
    • Improved color reproduction
    • Reduced read noise
    • Improved signal-to-noise ratio

    Dual conversion gain (DCG) is a technology many modern CMOS image sensors support. Some of the sensors that support DCG include:

    • Sony IMX686
    • Samsung GW1
    • OmniVision OV64B
    • Samsung ISOCELL GN1
    • Sony IMX766
    • Sony IMX789
    • OmniVision OV50A
    • Samsung ISOCELL JN1
    • Sony IMX586
    • OmniVision OV48C

    DCG is also supported by some hardware platforms, such as the Qualcomm Snapdragon 8 Gen 1 mobile platform. This platform includes a built-in image signal processor (ISP) that supports DCG, which allows smartphones that use the Snapdragon 8 Gen 1 platform to take better photos in low-light conditions.

    Dual conversion gain is a powerful technology that can significantly improve the image quality of CMOS image sensors. It is a key factor in the ability of modern cameras to take stunning photos in even the darkest of environments.

    Conclusion:

    As DCG technology continues to advance, its widespread adoption is inevitable. This will allow a broader audience to capture stunning photos in low-light conditions, enriching visual storytelling.

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