The term ‘RGB’ has become a common term in the photography and graphic world. RGB stands for Red, Green, and Blue added to each other with various ways to create many colors. The advantage of RGB is to show the picture on electronic and photography devices.
Different devices acknowledge and create different RGB values because the color elements are distinct from one factory to another factory, even in one device after a long period of time. As the era develops, the model is improved to RGBW.
Actually, RGBW technology has been existing since 2015. However, there were 3 technical weaknesses in technology at that time.
Firstly, processing technology 40nm used in sensors is left behind compared to recent technology and the computation power was also limited.
Secondly, the pixels technology at that time was not good enough and the film produced was susceptible to fake colors.
Thirdly, RGBW used in 2015 was based on pixels that was arranged lower, susceptible to moire phenomenon when capturing objects with compact lines so that it affected the picture quality.
Seeing those weaknesses, OPPO’s research and imaging development team creatively combines the 4in1 pixel aggregation technology with RGBW pixel settings.
OPPO develops a new RGBW pixel setting that introduces 2 W pixels in every group consisting of 4 sub-pixel, in which every pixel has the ability to recognize Red, Green, Blue, and White.
White light input from the IMX709 sensor increases 60% compared to Green line from traditional RGGB, so a higher signal-to-noise ratio can be obtained.
Besides, the picture processing unit developed by OPPO holds a series of algorithms, including 4in1 pixel aggregation, RGBW restoration algorithm, and so on. This technique has higher picture processing efficiency and higher compatibility with different SoC platforms.
When Reno7 lens is studied in more detail, the unique camera technology owned by OPPO can be seen in the whole mobile phone industry.
